RIB na tranzystorach - dziala, sprawdzony: Oraz soft...
Front End Filter
Alignment of the front-end pre-selector must not be changed, unless the
radio has poor receiver sensitivity or the pre-selector parts have been
replaced.
The softpot value sets the control voltage of the pre-selector; during
the procedure, its value must be set at seven frequencies across the
frequency range.
Per Channel
The Per Channel menu option gives the user access to the features that
are enabled/disabled on a Per Channel basis. Selection of the option
opens the Per Channel window which contains the Per Channel features
collected together in functional groups under the headings:
Common Options
Display
Transmit (TX)
Receive (RX)
Transmit Options
Receive Squelch
Single Tone Encode
Single Tone Decode
Common Options
_____________
Allow Channel Selection
Check this check box to enable the channel for use.
With the A2, 4-channel radios, up to sixteen channels can be programmed
into the radio's codeplug. Only the first four " allowed " channels can be
accessed through the keypad. For Selectone Smartrunk II systems, ensure
that all trunked channels occupy the channels starting from channel 1.
For these trunked channels, do not check the 'Allow Channel Selection'.
Any " conventional " , i.e. non-trunked, channels in the system should be
above the trunked channels, and for these conventional channels, ensure
that the 'Allow Channel Selection' box is checked (so up to 4
conventional channels are possible).
With the A3, 128-channel radios, channels that are not " Allowed " will
not be seen in the channel list as the user scrolls through the
channels.
Pre-emp/De-emp On
Voice transmit pre-emphasis and receive de-emphasis used in voice
communications can be enabled per channel. It should be set on in all
standard applications.
Talkaround Allowed
When Talkaround is selected, the transmit frequency on a channel is
switched to be the same as the receive frequency on that channel. The
feature is used to allow one radio to communicate directly with another
without the need to use a repeater.
Checking the Talkaround Allowed check box enables the feature on that
channel only. To use the feature, the user must have programmed an
option button as Talkaround; the button is then used to select/deselect
Talkaround as required. When Talkaround is selected, for A3 display
radios, the Talkaround icon is activated ; for A2 non-display radios,
the Green option LED is illuminated. If an attempt is made to select
Talkaround on a channel with Talkaround disabled, the button error alert
will be sounded.
Once selected, Talkaround remains active across channel changes provided
that the channels have Talkaround enabled. When a channel is not
enabled, Talkaround will not operate but will again operate when a
channel with Talkaround is selected.
It is not possible to select Talkaround while the radio is actively
scanning, but it is possible to start the radio scanning while
Talkaround is selected.
Display
______
Display Alias
If this is enabled, the alias will be displayed instead of having one
of the pre-defined channel numbers displayed. This allows the user, for
example, to number a channel according to an existing channel plan (001,
014, 016, 034 or C01, C02, C03). To enable the channel alias for a
channel, check the identified check box.
Display Alias is mutually exclusive to Display Channel Number.
Display Channel Number
If this is enabled, the default channel number will be displayed on the
radio display.
Display Channel Number is mutually exclusive to Display Alias.
Transmit (TX)
_________
Tx Frequency (MHz)
A designated frequency in MHz for transmitting messages and signals.
Frequencies must be within the specified band for the radio and be
divisible by 5 kHz or 6.25 kHz. The required frequency is keyed in to
the identified entry field. Each channel must have a Tx frequency
defined, if the selected frequency is 0 (zero), the channel will operate
as receive only.
RF Power
RF Power is selected through the identified spin box. The available
options are Power 1 and Power 2.
TX PL/DPL Mode
Private Line (PL or CTCSS) signalling consists of a sub-audible tone
that can be sent out with voice or with tone signalling. When a radio is
programmed to transmit with a PL code on a particular channel, then it
will send the tone signal when keyed on that channel. When the radio is
dekeyed, the tone signal is stopped, and a PL 'reverse burst' is
generated. The reverse burst consists of PL encoded with a 240 degree
phase shift. It is sent to indicate the end of transmission for the
decode radio.
Digital Private Line (DPL) signalling is a digitally coded signal that
can be sent out simultaneously with voice or with tone signalling when a
radio is programmed to transmit with a DPL code on a particular channel.
The radio will then send a digitally coded signal when keyed on that
channel. When the radio is dekeyed, the digitally coded signal is
stopped and the Turn Off Code (TOC) is sent to indicate the end of
transmission for the decode radio.
Inverted DPL should not normally be used but will be retained for
special applications such as a 'flipped' audio path or a multi-hop
repeater. Inverted DPL Encode inverts all the bits in the DPL code
before sending it. It should be noted that inversion is applied
independently to DPL Encode and DPL Decode, i.e. there is no constraint
that if inversion is applied to encode it must be applied to decode and
vice versa.
Implementation of PL/DPL selection is achieved using one of two combo
boxes separated by an entry field. The first combo box allows selection
of standard PL codes. The first option in the box is Disabled, that is
followed by all of the standard PL codes in the form 'XZ - 67 PL', and
the last option, is User Defined PL. This allows for the selection of
non-standard PL, the required frequency being keyed in to the entry
field.
The second combo box is used for DPL code selection. The options
available in the box are 'Disabled', and all standard DPL codes. If a
DPL code is selected, the DPL Invert and DPL TOC selections must be
addressed.
It should be noted, that PL and DPL may not be used on the same channel,
i.e. PL transmit (encode) and DPL receive (decode) or vice versa.
DPL Invert
Select this check box only if your DPL selection requires inversion.
DPL TOC
If you have selected DPL encode, you will need to check the Turn Off
Code check box to enable the feature to ensure that the transmission is
correctly terminated.
Receive (RX)
_________
Frequency (MHz)
A designated frequency in MHz for receiving messages and signals.
Frequencies must be within the specified band for the radio and be
divisible by 5 kHz or 6.25 kHz. Each selected channel must have a
receive frequency defined, 0 (zero) is not permitted.
RX PL/DPL Mode
Private Line (PL or CTCSS) signalling consists of a sub-audible tone
that can be sent out with voice or with tone signalling. When a radio is
programmed to transmit with a PL code on a particular channel, then it
will send the tone signal when keyed on that channel. When the radio is
dekeyed, the tone signal is stopped, and a PL 'reverse burst' is
generated. The reverse burst consists of PL encoded with a 240 degree
phase shift. It is sent to indicate the end of transmission for the
decode radio.
Digital Private Line (DPL) Squelch is a digitally coded signal that can
be sent out simultaneously with voice or with tone signalling when a
radio is programmed to transmit with a DPL code on a particular channel.
The radio will then send a digitally coded signal when keyed on that
channel. When the radio is dekeyed, the digitally coded signal is
stopped and the Turn Off Code (TOC) is sent to indicate the end of
transmission for the decode radio.
Inverted DPL should not normally be used but will be retained for
special applications such as a 'flipped' audio path or a multi-hop
repeater. Inverted DPL Encode inverts all the bits in the DPL code
before sending it. It should be noted that inversion is applied
independently to DPL Encode and DPL Decode, i.e. there is no constraint
that if inversion is applied to encode it must be applied to decode and
vice versa.
Implementation of PL/DPL selection is achieved using one of two combo
boxes separated by an entry field. The first combo box allows selection
of standard PL codes. The first option in the box is Disabled, that is
followed by all of the standard PL codes in the form 'XZ - 67 PL', and
the last option, is User Defined PL. This allows for the selection of
non-standard PL, the required frequency being keyed in to the entry
field.
The second combo box is used for DPL code selection. The options
available in the box are 'Disabled', and all standard DPL codes. If a
DPL code is selected, the DPL Invert and selection must be addressed.
DPL Invert
Select this check box only if your DPL selection requires inversion.
Transmit Options
_____________
Time Out Timer Enabled
Checking this check box enables the Tx Time Out Timer for the channel.
The parameters for this feature are set up in the Transmit group in the
Per Radio window and are discussed under that heading in this User
Manual.
Forced Monitor Enabled
Checking this check box enables the Forced Monitor feature for the
channel. The parameters for this feature are set up in the Receive group
in the Per Radio window and are discussed under that heading in this
User Manual.
Transmit Allowed
The Transmit Allowed feature is used to prevent the user from being able
to transmit on channels that are already being used. The criteria are
checked when the user attempts to transmit by, for example, pressing the
PTT.
The selectable Transmit Allowed criteria are:
Always No Transmit Allowed criteria; the user is always allowed to
transmit.
If Channel Free The radio will inhibit transmission if carrier is
currently being detected on the receive frequency.
PL/DPL Lockout When the channel is busy, the radio will inhibit
transmission unless your selected PL/DPL is present on the receive
channel, i.e.: your user group is currently active on the channel and
your selected PL/DPL is being detected.
Past PL/DPL Lockout When the channel is busy, the radio will inhibit
transmission unless your selected PL/DPL has been present on the receive
channel, i.e. you and/or your user group are active on the channel and
your selected PL/DPL has been detected, BUT there has been no loss of
received carrier since the correct PL/DPL was detected.
Full Lockout
Standard or Past PL/DPL lockout (Busy Channel Lockout) does not disable
the mobile radio user's ability to monitor a channel. In those instances
where even monitoring is not permitted, e.g.. a shared repeater, Full
Lockout prevents any form of monitoring of the channel. To enable this
facility on the selected channel, check the check box.
In Autoreset Period
When checked, this causes the Transmit Allowed criteria to be applied
during autoreset.
Receive Squelch
_____________
The radio supports programmable squelch settings for each of its
receive, monitor 1 and monitor 2 squelch modes. Squelch settings
determine what signalling the radio must detect if it is to unmute.
Receive Squelch Enables the user to select the appropriate level of
standard receive squelch they require depending on their preference or
system configuration. This allows the user to ensure that only the
correct call/messages are received.
Monitor 1 and 2 Squelch This allows the user to pre-determine the
squelch settings which will occur when the monitor button is pressed for
either a short press (Monitor 1) or a long press (Monitor 2).
Squelch Options
The options available for selection as Receive, Monitor 1 and Monitor 2
are:
Carrier This option enables the radio to unmute when carrier is detected
on the channel.
PL/DPL Squelch This option enables the radio to unmute while the PL/DPL
frequency is detected on the channel.
Tone Squelch This option enables the radio to unmute on receiving a
Single Tone selective call on the channel.
PL/DPL + Tone Squelch This option enables the radio to unmute if the
correct PL and Tone Squelch are detected together on the channel.
Open The radio is permanently unmuted (also known as 'Volume Set' on
other radios).
Autoreset
This feature determines the way in which the radio resets when Autoreset
is enabled. The Autoreset Mode options are: Carrier Override, Carrier
Independent, Manual Reset, Disabled.
Autoreset is a feature that is typically associated with tone squelch
operation but is also applied to PL squelch. On receipt of a selective
call or on dekeying, the radio will enter autoreset mode in which tone
squelch is defeated, i.e. if the current squelch setting is 'tone
squelch' then the radio will operate in carrier squelch, if the current
squelch setting is 'tone and PL squelch' then the radio will operate in
PL squelch. Additionally, it is possible to specify that PL squelch is
defeated during the autoreset mode using PL Override which is discussed
below.
The Autoreset timer allows the user a set period of time to respond to a
call by just pressing the PTT switch and therefore not having to call
the other party back each time they wish to speak to them. This reduces
the need for user intervention during calls and also ensures that the
radio squelch resets after a call has been completed, thereby preventing
users overhearing the next call on the channel.
Carrier Override Detection of carrier within the auto reset period will
reset the timer which will start again when the carrier is lost.
Transmission by the radio will also reset the timer. If the channel has
PL decode enabled then auto reset will count down whilst PL is not being
detected and will be reset whilst PL is detected. Exit from monitor
operation will auto reset the radio even if the auto reset timer has not
expired. Hence, the user will be able cause auto reset by tapping the
monitor button provided monitor operation is enabled.
Carrier Independent This differs from auto reset 'carrier override' in
that the auto reset timer will not be affected by the presence of
carrier or PL. On expiry of the timer the radio will auto reset.
Manual Reset The radio will remain in the auto reset mode until the
monitor button is tapped. Manual reset will only be available if monitor
is enabled.
PL Override
PL Override is used in conjunction with Autoreset. Check the check box
if the user requires PL to be defeated during the operation of
Autoreset.
Single Tone Encode
________________
Single tone encode may be initiated before speech transmission on PTT
Key and after speech transmission on PTT Dekey. Single tone encode may
also be initiated by option buttons that have been programmed for single
tone encode (Call 1 and Call 2).
Tone on PTT Key
Select the required tone, J, K, L or M, or '-' (Disabled) in the combo
box.
Mode
When required, the single tone keyup tone will be transmitted after the
radio has been successfully keyed and before speech transmission starts.
The requirement is determined by two mutually exclusive options, offered
for selection in the combo box:
Once Only The single tone will be sent on depression of the PTT if the
radio is either, not in autoreset mode or, is in autoreset mode but a
call has not yet been started. This option ensures that a tone will be
sent only when an attempt is made to initiate a call and not, during or
in response to a call. This option also caters for the situation whereby
autoreset mode is entered via the forced monitor feature.
Every PTT The single tone will be sent after the radio has keyed and
before speech transmission starts.
Tone on PTT Dekey
The single tone dekey telegram will be sent out after speech
transmission, just before the radio dekeys. Select the required tone, J,
K, L or M, or '-' (Disabled) in the combo box.
Call 1 Tone
This combo box enables the selection of the tone to be transmitted when
the option button programmed as CALL 1 is pressed. When this occurs, the
programmed single tone, along with pretime and hold time, will be
encoded. If the feature is not required on the current channel, -
(Disabled) should be selected.
Note: The complete single tone, including hold time, will be transmitted
even if the option button is released before the single tone
transmission is complete.
Call 2 Tone
This combo box enables the selection of the tone to be transmitted when
the Option Button programmed as CALL 2 is pressed. When this occurs, the
programmed single tone, along with pretime and hold time, will be
encoded. If the feature is not required on the current channel, '-'
(Disabled) should be selected.
Note: The complete single tone, including hold time, will be transmitted
even if the option button is released before the single tone
transmission is complete.
Sidetones
Sidetones are an aspect of the Single Tone Encode feature. When the
Sidetones check box is checked, the user is able to hear the side tones
when a single tone is encoded; the side tones providing an audible
indication that the tones are being transmitted. The side tones will
consist of the actual tone(s) being sent rather than just a fixed
frequency alert.
Single Tone Decode
________________
Decode Tone
For A3, 128 channel radios only. Typically, this feature defines the
radio's support of selective calling via single tone decode. The Decode
Tone combo box allows the user to select the required single tone from
the range J, K, L and M, in support of selective calling, or '-'
(Disabled), if selective calling is not supported on the current
channel.
VCO Attenuation
The transmit deviation limit sets the maximum deviation of the carrier.
The deviation value must be set at seven frequencies across the
frequency range.
Per Radio
The Per Radio menu option gives the user access to the features that are
enabled/disabled on a Per Radio basis and not selectively configured on
a channel basis. Selection of the option opens the Per Radio window
which contains the Per Radio features collected together in functional
groups under the headings:
Function Buttons
Transmit
Receive
Ergonomics
Volume
Function Buttons
______
'A2' radio models are 4-channel capable with no display and have two
function buttons. 'A3' radio models are 128-channel capable and have a
3-digit display. These radios have six function buttons.
Programmable options for the buttons are:
ALL MODELS:
MONITOR: Allows user to select between the channel's squelch modes,
which are set on a per channel basis.
REPEATER TALKAROUND: Sets the transmit frequency to be the same as the
receive frequency.
CALL 1: Transmits current channel's single tone 1.
CALL 2: Transmits current channel's single tone 2.
A3 MODELS ONLY:
SCAN A: Toggles scan operation. Uses scan list A.
SCAN B: Toggles scan operation. Uses scan list B.
NUISANCE DELETE: Deletes unwanted channels from scan list.
MEMORY CHANNEL 1: Selects first memory channel.
MEMORY CHANNEL 2: Select second memory channel.
EXTERNAL ALARM: User control of external alarm enable/disable.
CODED / CLEAR: Turns internal Option Board scrambler on/off.
KEY SELECT: Allows user to select required scramble key used by internal
Option Board scrambler.
Transmit
_______
Transmit LED
This feature is enabled by checking the Tx LED check box. When enabled,
the red LED is lit continuously while the radio is transmitting.
RF Power 1
Allows definition of the absolute power level in Watts that will be used
when a channel is in use that has Power Level 1 selected.
RF Power 2
Allows definition of the absolute power level in Watts that will be used
when a channel is in use that has Power Level 2 selected.
Transmit Time Out Timer
The transmit timeout timer limits the amount of time the user is allowed
to transmit. If the user tries to transmit for longer than the transmit
timeout timer duration, then the radio will stop transmitting and sound
the button error alert until the PTT is released.
The TOT duration is set per radio. The feature is enabled on a Per
Channel basis by checking the identified check box in the Per Channel
window Transmit Options Area.
When the feature is enabled, the user's transmit time is restricted to
the value entered into the Transmit Time Out Timer spin box.
(Time Out Timer) Pre Alert
The TOT Pre Alert is a medium-frequency alert sounded for 130 ms, five
seconds prior to the expiry of the Time Out Timer. The volume of the
Pre Alert is selectable as Variable if not Disabled.
(Transmit Time Out Timer) Rekey Inhibit Time
This programmable period of time starts with the expiry of the transmit
timeout timer. During this period, the user is prevented from
transmitting. If an attempt is made, the button error alert is sounded
until the relevant button, e.g. the PTT, is released.
On A3, 128-channel models, if a Single Tone selective call is received
during the rekey inhibit period, the Rekey Inhibit Duration is cancelled
to allow the user to answer the call.
Forced Monitor Mode
Forced Monitor forces the user to monitor a channel before being allowed
to key the radio by the PTT or a Call button. If enabled, the button
error alert will be sounded whilst the PTT/Call button is being pressed,
to warn the user that he cannot transmit. On release of the button, the
radio will enter 'autoreset', allowing the user to monitor the channel
for any activity. Once in the autoreset mode, any subsequent attempt to
key the radio will cause the radio to transmit (subject to transmit
allowed criteria).
Forced monitor will not be applied if the radio is already monitoring
the channel in autoreset (e.g.: Microphone off hook). It should be noted
that force monitor cannot automatically be overridden by entering
Monitor Mode 1 or Monitor Mode 2 because these modes are dealer
programmable and may be set inconsistently with the requirements of
forced monitor. e.g.: 'Reverse Monitor' is sometimes required by
customers where receive squelch is carrier, and Monitor 1 squelch is
Private Line.
The Forced Monitor Mode combo box enables the radio to be programmed to
force monitor only if the channel is busy, i.e. carrier is present.
The Forced Monitor feature is enabled/disabled per channel but should
not be enabled on channels which have auto reset disabled.
Forced monitor will not have any effect if the radio is 'monitoring the
channel' when an attempt is made to key up the radio. The radio is
considered to be 'monitoring the channel' under the following
circumstances:
The radio is carrier squelched.
The radio is open squelched.
The radio is in autoreset. This can be after PTT dekey, entering timed
hook, entering forced monitor after an attempt to key the radio when not
monitoring the channel.
The radio is in permanent hook.
The radio has defeated signalling requirements by changing monitor mode.
Forced Monitor Alert
This is a continuous medium frequency tone sounded when the PTT is
pressed and the radio is forced to monitor the channel before
transmitting. The volume of the Alert is selectable as Variable if not
Disabled.
Receive
_______
Channel Busy LED
When enabled, the red, front-panel LED flashes during receive (while
carrier is present on the channel).
Autoreset Time
On entering into auto reset mode, the auto reset timer will be started.
The radio will reset to the default channel squelch setting on expiry of
the auto reset timer.
The auto reset mode will be entered for the following reasons:
1. On dekey of the radio (release PTT).
2. Detects the correct PL for coded squelch only channels. The auto
reset timer will be started as soon as the PL frequency is detected
(detecting PL whilst in the auto reset mode will not restart the timer
unless carrier override is specified).
3. Going 'off-hook', when Hook (Per Radio Ergonomics) is programmed to
be timed.
4. Being forced to monitor the channel before transmit by forced
monitor.
5. For A3 models, if the radio is selectively called using single tone.
The auto reset timer will be started as soon as the selective call has
been received.
Channel Spacing
For 20/25kHz models ONLY, this feature allows the selection of channel
spacing for the radio. It causes the radio to use factory programmed
Alignment data for transmit deviation and receive squelch settings for
either 20kHz or 25kHz channel spacing.
Options: 20kHz and 25kHz.
Note: For12.5 kHz radios, this feature is non-selectable.
Monitor 2 Alert
A high frequency alert tone sounded for 130 ms when monitor 2 squelch
comes into effect (when the monitor button is pressed and held for 1
second). This feature may be enabled with Variable Volume only.
External Alarm Mode
This feature is available on 'A3' model display radios only. It is used
to provide a signal on the accessory connector that can trigger a
suitable relay to sound the vehicle's horn, or to switch on its lights,
to inform a user, who may be away from his vehicle, that the radio has
been selectively called.
The feature has the following options:
Disabled A selective call will not turn on the external alarm output
signal.
Always (activated on selective call) A selective call will always
activate the external alarm signal for the pre-programmed duration. The
'bell' icon will be displayed.
On Button The external alarm select option button is used to toggle
between enable/disable for the external alarm signal. Therefore, the
user may chose to turn off the signal when driving and only turn it on
when the vehicle is parked.
External Alarm Duration
The length of time that the external alarm output is active after a call
is received. NOTE: External alarm is stopped if the radio is switched
off, or if any of the radio buttons are pressed whilst the alarm is
being asserted.
Ergonomics
_________
Power Up Mode
This feature determines the channel selected when the radio is powered
up. The options available are Designated Channel and Last Channel. If
the Last Channel option is selected and the radio was not on a
particular channel but was in scan when powered down, the radio will
power up into scan.
Designated Channel
Any one of the available channels in the radio that may be selected for
the radio to power up onto.
Off Hook Function
Hook operation allows the user to toggle the squelch state. When
on-hook, the radio squelch state is determined by the monitor mode and
autoreset. When off-hook, the radio squelch state is determined by the
programmed hook type. The Off Hook Function may be:
Disabled Going off-hook has no effect.
Permanent Going off-hook causes user to monitor channel until user goes
back on-hook.
Timed Going off-hook causes user to monitor channel for the autoreset
duration.
The required option is selected using the identified combo box.
Handset Audio
This check box must be enabled when a handset, not microphone, is
connected. If the option is not selected, the loudspeaker audio will not
be turned off when the handset is picked up, i.e. off hook. Also, it is
recommended to program Permanent Hook.
Memory Channels 1 and 2
Two of the radio's option buttons can be programmed to select
predetermined (memory) channels; these are identified as Memory Channels
1 and 2. The two Memory Channel spin boxes enable selection of the
default channels.
Modifiable
Select either, or both, of these check boxes to enable the user to
change the memory channel(s) through use of the programmed option
button(s).
Power Up Alert
A high frequency alert tone sounded for 530 ms when the radio is
switched on, to indicate that the power-up checks have been successful.
This alert tone is selectable, the options offered are Disabled and
Variable Volume.
Keypad Acknowledge Alert
A high frequency alert tone sounded for 130 ms when the user presses a
valid button on the keypad. This alert is selectable, the options
offered are Disabled and Variable Volume.
Button Error Alert
A medium frequency alert sounded continuously as long as the error
condition exists. This alert is sounded if a button is pressed when not
permitted, or if the radio is changed to an undefined or inhibited
channel. This feature is selectable, the options offered are Disabled
and Variable Volume.
Volume Select Alert
When the user is adjusting the radio speaker volume, the volume select
alert is sounded for the duration of the volume button press unless the
speaker is open for received audio. The volume select alert is a high-
frequency continuous tone sounded at the received audio level. The alert
may set to be on or off.
Call Alert
A high-frequency interrupted tone, 162 msecs on and 81 msecs off,
sounded five times when the radio is individually called by means of
the single-tone encode/decode facility. This feature is selectable, the
options offered are Disabled and Variable Volume.
Call Reminder Alert
A high-frequency, double tone, 162 msecs on and 81 msecs off and 81
msecs on, sounded at intervals after a Call Alert until the call is
responded to. This feature is selectable, the options offered are
Disabled and Variable Volume.
Volume
______
Variable Volume
This feature defines the level of the variable volume alert and allows
an offset to be added to the normal volume setting when generating
alerts.
Fixed Volume
This feature allows the level of fixed volume alerts to be set.
Minimum Volume
The volume is controlled using the volume up/down button and is
increased and decreased by a fixed volume step change size. The volume
select alert is sounded for the duration of the volume button press
unless the speaker is open for received audio. The volume select alert
is given at the received audio level.
Pressing the volume up/down button when at maximum or minimum volume
will result in no volume change. If the volume up/down button is pressed
and held, the radio will increase/decrease the volume continuously and
the volume select alert will sound continuously, the alert
increasing/decreasing in volume.
Use the Minimum Voltage spin box to set the minimum volume level that is
allowed (for example, to prevent users in high noise environments from
turning the volume down so far they would not hear a message).
Side Tone Volume
This feature defines the level of the variable volume side tones (e.g.:
Call 1 single tone encode) and allows an offset to be added to the
normal volume setting when generating side tones.
Mic Gain Adjust (dB)
This feature allows the output from the microphone to be altered to suit
the customer.
Modulation Attenuation
Compensation alignment balances the modulation sensitivity of the VCO
and reference modulation (synthesiser low frequency port) lines.
Compensation algorithm is critical to the operation of signalling
schemes that have very low frequency components, e.g. PL, and could
result in distorted waveforms if improperly adjusted. The compensation
value must be set at seven frequencies across the frequency range and
for every channel spacing supported by the radio.
If you have read the Help Text for this procedure and require further
information, refer to Chapter 3 of the Service Manual for the GM350
radio.
-- HELP_VOLTAGE_LIMIT Voltage Limit Voltage Limit
The transmit voltage limit softpot sets the maximum power control
voltage. All seven voltage limit softpots are tuned and programmed
automatically when the Program button is pressed.
Single Tone
The Single Tone Definitions window allows the user to define the
Duration, Frequency, Pretime, Hold Time and Minimum Decode Time
parameters for the four single tones to be used in the single tone
encode/decode features in the radio.
The Duration parameter is the duration of the single tone encode which
may be any selected value within the specified range
The Frequency is the frequency to be allocated to each of the tones, and
each of the four frequencies must be within the range 300 Hz to 3000 Hz.
Pretime is that period of time during which unmodulated carrier is
transmitted before the single tone is encoded. This time must be
selected from within the specified range. The purpose of this is to
allow other system elements, e.g. the repeater's receive circuits, to
become established.
Hold Time is the period for which the radio will remain keyed following
the transmission of an encoded single tone. The period required is
entered into the identified spin box and must be selected from within
the specified range.
Decode Tone (Per Channel window) defines the radio's support of
selective calling via single tone decode. The Decode Tone combo box
allows the user to select the required single tone from the range J, K,
L and M, in support of selective calling, or to disable the feature on
the current channel by selecting '-' (Disabled) in the combo box.
Minimum Decode Time is the minimum period for which the tone must be
received before the tone will be detected.
Reference Oscillator
Adjustment of the reference oscillator is critical for proper radio
operation. Improper adjustment will not only result in poor operation
but also a misaligned radio that will interfere with other users
operating on adjacent channels. For this reason, the reference
oscillator should be checked every time the radio is serviced. The
frequency counter used for this procedure must have a stability of 0.1
ppm or better.
Should the crystal be damaged, it is not practical to replace the
component in the field, due to the extreme amount of processing of
temperature compensation data required to be programmed into the radio
for correct operation. An alternative repair solution, using a frequency
element, rather than a crystal is recommended. See the GM350 service
manual for details.
Squelch Attenuation
The squelch softpots set the signal to noise ratio at which the squelch
opens. The squelch value must be set at7 frequencies across the
frequency range.
Óíèâåðñàëüíûå (GP) Ëèíèè Ââîäà - âûâîäà îáåñïå÷èâàþò ïîäêëþ÷åíèÿ ê
ýëåêòðîñåòè ìåæäó ðàäèî è âíåøíèìè ñðåäñòâàìè, íàïðèìåð âíåøíèì PTT,
âíåøíèìè ñèãíàëüíûìè è âíóòðåííèìè ñåòåâûìè ïëàòàìè îïöèè. Äåòàëè
ñâÿçíîñòè ìåæäó Ëèíèÿìè GP, Ñîåäèíèòåëåì Âñïîìîãàòåëüíîé ïðîãðàììû è
Âíóòðåííèìè Ñîåäèíèòåëÿìè Îïöèè âêëþ÷åíû â Èíñòðóêöèþ ïî ýêñïëóàòàöèè
äëÿ ðàäèî.
'A2', ìîäåëè ðàäèî ñ 4 êàíàëàìè, îãðàíè÷èëè GP âîçìîæíîñòü Ââîäà -
âûâîäà. Ñì. Ïðèëîæåíèå B GM350 ðóêîâîäñòâà îáñëóæèâàíèÿ / èçäåëèÿ äëÿ
äåòàëåé.
Ïîëå ñî ñïèñêîì Íàçíà÷åíèÿ Ââîäà - âûâîäà äîïóñêàåò ïðàâèëüíîìó âûáîðó
äëÿ ñòàíäàðòíûõ ñåòåâûõ ïëàò îïöèè è âñïîìîãàòåëüíûõ ïðîãðàìì, èëè '
Ñâîáîäíûé Ôîðìàò ', ãäå òîðãîâûé àãåíò äîëæåí îïðåäåëèòü êàæäóþ ëèíèþ
èíäèâèäóàëüíî.
ÑÂÎÁÎÄÍÛÉ ÔÎÐÌÀÒ - Òîðãîâûé àãåíò Îïðåäåëèë Ââîä - âûâîä TRANSCRYPT -
Èñïîëüçîâàíèå, êîãäà Transcrypt ñåòåâàÿ ïëàòà îïöèè scrambler
óäîâëåòâîðÿëà(ïðèñïîñîáèëà) SMARTRUNK ÂÒÎÐÎÉ - Èñïîëüçîâàíèå, êîãäà
Selectone Smartrunk ñåòåâàÿ ïëàòà îïöèè II óäîâëåòâîðÿë(ïðèñïîñîáèë)
ZR350 - ÑÈÌÏËÅÊÑ - Èñïîëüçîâàíèå, ÷òîáû êîíôèãóðèðîâàòü GP Ââîä - âûâîä
äëÿ ñèìïëåêñíîãî òåëåôîíà ñâÿçûâàåò ZR350, ZR320, ZR340 ÑÒÎÃ - TX -
Èñïîëüçîâàíèå, ÷òîáû óñòàíîâèòü ïðàâèëüíûå ñèãíàëû, ÷òîáû äåéñòâîâàòü
êàê TX ðàäèî â uni-directional ïîäâèæíîì ïîâòîðèòåëå ÑÒÎÃ - RX -
Èñïîëüçîâàíèå, ÷òîáû óñòàíîâèòü ïðàâèëüíûå ñèãíàëû, ÷òîáû äåéñòâîâàòü
êàê RX ðàäèî â uni-directional ïîäâèæíîì ïîâòîðèòåëå, äðóãèå Ñòàíäàðòíûå
Ïàðàìåòðû ìîãóò áûòü äîáàâëåíû âðåìÿ îò âðåìåíè.
Ëèíèè GP è èõ íàïðàâëåíèÿ èäåíòèôèöèðîâàíû â Ïðèëîæåíèè B Èíñòðóêöèè ïî
ýêñïëóàòàöèè âìåñòå ñ ôóíêöèÿìè, êîòîðûå ìîãóò áûòü ðàñïðåäåëåíû
êàæäîìó.
Îïèñàíèÿ Ôóíêöèè Âûâîäà
______________________
Êóðüåð(òðàíñïîðò) Îáíàðóæèâàåò âûâîä, óòâåðæäàåòñÿ âñÿêèé ðàç, êîãäà
êóðüåð(òðàíñïîðò) îáíàðóæåí è äå-óòâåðæäàåòñÿ, êîãäà íèêàêîé
êóðüåð(òðàíñïîðò) íå ïðèñóòñòâóåò, èëè ðàäèî íàõîäèòñÿ â, ïåðåäàþò
ðåæèì.
PL/DPL Îáíàðóæèâàþò âûâîä, óòâåðæäàåòñÿ âñÿêèé ðàç, êîãäà ïðàâèëüíûé
äåêîäèðóþò òîí PL, èëè öèôðîâîé PL îáíàðóæåí è äå-óòâåðæäàåòñÿ, êîãäà
ëþáîé äðóãîé êîä îáíàðóæåí, èëè ðàäèî íàõîäèòñÿ â, ïåðåäàþò ðåæèì.
Àâòîìîáèëüíîå Ðàäèî Íåìîé âûâîä àêòèâåí âñÿêèé ðàç, êîãäà
ãðîìêîãîâîðèòåëü çâóêîâîé âêëþ÷åí (îïðåäåëåííûé, ðàñòîï÷óò óñòàíîâêó) è
îñòàåòñÿ àêòèâíûì â òå÷åíèå 4 ñåêóíä ïîñëå òîãî, êàê ãðîìêîãîâîðèòåëü
âûêëþ÷åí.
Ðàäèî Çàíÿòûé Â âûâîä óòâåðæäàåòñÿ âñÿêèé ðàç, êîãäà êóðüåð(òðàíñïîðò)
îáíàðóæåí, èëè ðàäèî íàõîäèòñÿ â, ïåðåäàþò ðåæèì.
Âíåøíÿÿ Òðåâîãà âûâîä óòâåðæäàåòñÿ, êîãäà èíäèâèäóóì äåêîäèðóåò, áûëà
ïîëó÷åíà ñî âíåøíåé äîïóñêàåìîé òðåâîãîé.
Âíóòðåííÿÿ Ñåòåâàÿ ïëàòà Îïöèè Äîïóñêàåò ìèêðîïðîöåññîðó, ìîæåò
óïðàâëÿòü ýòîé ëèíèåé íà íà îñíîâàíèå êàíàëà, ÷òîáû äîïóñòèòü /
îòêëþ÷èòü íå-ïîñëåäîâàòåëüíóþ ñåòåâóþ ïëàòó îïöèè òèïà øèíû.
Transcrypt: Ñîñòàâëåííûé ïðîãðàììó / ÷èñòûé Âûáîð âûâîä óêàçûâàåò
òðåáóåìîå ñîñòàâëåííîå ïðîãðàììó / ÷èñòîå ñîñòîÿíèå äëÿ Transcrypt
ìîäóëÿ Âûñîêî (5V) =, î÷èùàåò Íèçêî (0V) = Êîäèðîâàííûé, ýòà ëèíèÿ áóäåò
ïåðåêëþ÷àòüñÿ, êîãäà ïîëüçîâàòåëü íàæèìàåò êíîïêó, îáîçíà÷åííóþ äëÿ ýòîé
çàäà÷è.
Transcrypt: Âûáîð Êëàâèøè(êëþ÷à) Êàæäûé ðàç ïîëüçîâàòåëü íàæèìàåò
êíîïêó, îáîçíà÷åííóþ êàê Âûáîð Êëàâèøè(êëþ÷à), ýòà ëèíèÿ áóäåò pulsed
íèçêî äëÿ 100ms. Ýòî çàñòàâèò Transcrypt ìîäóëü èçìåíÿòü(çàìåíÿòü)
êëàâèøó(êëþ÷) ñõâàòêè. Ìîäóëü îáåñïå÷èâàåò ñëûøèìóþ îáðàòíóþ ñâÿçü
âûáðàííîé êëàâèøè(êëþ÷à).
Âõîäíûå Ôóíêöèîíàëüíûå Îïèñàíèÿ
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Óïðàâëåíèå Êàíàëà, êîãäà óïðàâëåíèå êàíàëà íàõîäèòñÿ â èñïîëüçîâàíèè,
'n' âõîäíûå øòûðüêè, áóäåò êîíôèãóðèðîâàíî â ðåæèìå óïðàâëåíèÿ êàíàëà,
ãäå n 1, 2, 3, èëè 4. Ïðîãðàììíîå îáåñïå÷åíèå áåðåò ñîñòîÿíèå ýòèõ
ââîäîâ (óòâåðæäàåìûé = 1, äå-óòâåðæäàåìûé = 0) è ïðèíîñèò èì âìåñòå,
÷òîáû ôîðìèðîâàòü n-áèò çíà÷åíèå â ïîðÿäêå GP6 ê GP1 (MSB ê LSB). Êîãäà
ýòî çíà÷åíèå íóëåâîå, êàíàë ìîæåò áûòü ñâîáîäíî âûáðàí, èñïîëüçóÿ êíîïêè
âûáîðà êàíàëà. Êîãäà ýòî çíà÷åíèå îòëè÷íî îò íóëÿ, êíîïêè âûáîðà êàíàëà
áëîêèðîâàíû, è êàíàë óñòàíîâëåí, ÷òîáû ñîîòâåòñòâîâàòü(ïåðåïèñûâàòüñÿ)
âûáðàííîìó çíà÷åíèþ. Ïîñêîëüêó ìàêñèìàëüíîå çíà÷åíèå äëÿ n - ÷åòûðå,
ñàìûé âûñîêèé êàíàë, âûáèðàåìûé ýòèì ìåòîäîì áóäåò äâîè÷íûé 1111, òî
åñòü êàíàë 15. Åñëè âûáðàííîå çíà÷åíèå áîëüøåå ÷åì ÷èñëî êàíàëîâ,
äîñòóïíûõ â ðàäèî, ñàìûé âûñîêèé íîìåð êàíàëà äîñòóïíûé áóäåò âûáðàí.
Êîãäà âõîäíîå çíà÷åíèå ñáðîøåíî ê íîëþ, ðàäèî âîçâðàòèò ïîñëåäíåìó
ïîëüçîâàòåëþ âûáðàííûé êàíàë.
Îáðàáîò÷èê ïðåðûâàíèé Îáðàáîò÷èêà ïðåðûâàíèé âûïîëíÿåò òó æå ñàìóþ
ôóíêöèþ êàê îáðàáîò÷èê ïðåðûâàíèé ìèêðîôîíà. Êîãäà òûëüíûé îáðàáîò÷èê
ïðåðûâàíèé äîïóñêàåòñÿ, ïåðåäíèé ñèãíàë îáðàáîò÷èêà ïðåðûâàíèé
èãíîðèðóåòñÿ, òî åñòü íå èìååòñÿ íèêàêîé ïîòðåáíîñòè " îñíîâàòü " ïåðåäíèé
îáðàáîò÷èê ïðåðûâàíèé, êîãäà âíåøíèé mic èñïîëüçóåòñÿ, ïîñêîëüêó
ñîñòîÿíèå îáðàáîò÷èêà ïðåðûâàíèé ïðèíèìàåòñÿ èç òûëüíîãî ïîäêëþ÷åíèÿ
îáðàáîò÷èêà ïðåðûâàíèé.
PTT (Ãîëîñ), êîãäà ðå÷åâîé ðåæèì âûáðàí ïðèíèìàåòñÿ, ÷òî âíåøíèé PTT -
ìåõàíè÷åñêèé ïåðåêëþ÷àòåëü, êîòîðûé òðåáóåò ïðîãðàììíîãî îáåñïå÷åíèÿ
debouncing. Êîãäà PTT íàæèìàþò, îáíàðóæåí, TX çâóêîâîé áóäåò íàïðàâëåí
èç ïóòè ìèêðîôîíà.
PTT (Äàííûå), êîãäà ðåæèì äàííûõ âûáðàí, ïðèíèìàåòñÿ, ÷òî âíåøíèé PTT -
ýëåêòðîííûé ïåðåêëþ÷àòåëü, íàïðèìåð ìîäåì, êîòîðûé òðåáóåò ñàìîãî
áûñòðîãî âîçìîæíîãî îòâåòà ðàäèî è íèêàêîãî ïðîãðàììíîãî îáåñïå÷åíèÿ
debouncing. Êîãäà PTT íàæèìàþò, îáíàðóæåí, ïóòü ìèêðîôîíà áóäåò
ïðèãëóøåí, è TX çâóêîâîé áóäåò íàïðàâëåí èç Ïëîñêîãî TX çâóêîâîãî ââîäà.
PTT (Ãîëîñ è Äàííûå) Êîãäà äàííûå è ðå÷åâîé ðåæèì âûáðàíû, ïðèíèìàåòñÿ,
÷òî âíåøíèé PTT - ýëåêòðîííûé ïåðåêëþ÷àòåëü, íàïðèìåð ìîäåì, êîòîðûé
òðåáóåò ñàìîãî áûñòðîãî âîçìîæíîãî îòâåòà ðàäèî è íèêàêîãî ïðîãðàììíîãî
îáåñïå÷åíèÿ debouncing. Êîãäà PTT íàæèìàþò, îáíàðóæåí, è ïóòü
ìèêðîôîíà, è Ïëîñêèé TX çâóêîâîé ââîä áóäåò äîïóñêàòüñÿ, è äâà ñèãíàëà
áóäóò ñóììèðîâàíû âíóòðè AFIC, ÷òîáû ôîðìèðîâàòü ñèãíàë TX.
Çàãëóøèòå Çâóêîâîé PA, êîãäà ýòîò ââîä óòâåðæäàåòñÿ, çâóêîâîé PA áóäåò
ïðèãëóøåí. Êîãäà ýòîò ââîä äå-óòâåðæäàåòñÿ, çâóêîâîé PA ôóíêöèîíèðóåò
ïîä ïðîãðàììíûì îáåñïå÷åíèåì íîðìàëè, óïðàâëÿþò è ñëåäóþò, ðàñòîï÷óò êàê
òðåáóåòñÿ.
Îòêðîéòåñü RX Çâóêîâîé, êîãäà ýòîò ââîä óòâåðæäàåòñÿ, ñèãíàë â AFIC RX
Â, òî åñòü discriminator çâóêîâîé, áóäåò íàïðàâëåí ÷åðåç ê çâóêîâîìó PA
íåçàâèñèìîìó îò, ðàñòîï÷óò, è ïåðåäà÷à ñèãíàëîâ îáíàðóæèâàåò. Êîãäà ýòîò
ñèãíàë äå-óòâåðæäàåòñÿ, çâóêîâîé PA áóäåò çàêðûò. Îïåðàöèÿ This
ïðîèñõîäèò òîëüêî, ïîêà ðàäèî íàõîäèòñÿ â RX ðåæèìå. Íà îïåðàöèþ â TX
ðåæèìå íå âîçäåéñòâóþò.
Îòêðîéòå AUX RX Çâóêîâîé, êîãäà ýòîò ââîä óòâåðæäàåòñÿ, ñèãíàë â AFIC
AUX_RX_IN, òî åñòü âíóòðåííåé çâóêîâîé ñåòåâîé ïëàòå îïöèè, áóäåò
íàïðàâëåí ÷åðåç ê çâóêîâîìó PA íåçàâèñèìîìó îò, ðàñòîï÷óò, è ïåðåäà÷à
ñèãíàëîâ îáíàðóæèâàåò. Êîãäà ýòîò ââîä äå-óòâåðæäàåòñÿ, çâóêîâîé PA
áóäåò çàêðûò. Îïåðàöèÿ This ïðîèñõîäèò òîëüêî, ïîêà ðàäèî íàõîäèòñÿ â RX
ðåæèìå. Íà îïåðàöèþ â TX ðåæèìå íå âîçäåéñòâóþò. Ýòîò ñèãíàë ìîæåò
èñïîëüçîâàòüñÿ âíóòðåííåé ñåòåâîé ïëàòîé ïàðàìåòðîâ, ÷òîáû îáåñïå÷èòü
ïðåäóïðåæäàþùèå òîíà.
Îòêðîéòåñü TX Çâóêîâîé, êîãäà ýòîò ââîä óòâåðæäàåòñÿ, ñèãíàë áóäåò
íàïðàâëåí èç AFIC TX Â, òî åñòü ââîäà ìèêðîôîíà, ÷åðåç ê çâóêîâîìó PA
íåçàâèñèìûé îò ðàñòîï÷óò, è ïåðåäà÷à ñèãíàëîâ îáíàðóæèâàåò. Îïåðàöèÿ
This ïðîèñõîäèò òîëüêî, ïîêà ðàäèî íàõîäèòñÿ â RX ðåæèìå. Íà îïåðàöèþ â
TX ðåæèìå íå âîçäåéñòâóþò. Ýòîò ñèãíàë ìîæåò èñïîëüçîâàòüñÿ âíåøíèì
óñòðîéñòâîì, ÷òîáû îáåñïå÷èòü, ïðåäóïðåæäàþùèå òîíà ñëûøàëè ÷åðåç
ãðîìêîãîâîðèòåëü ðàäèî.
Îòêðîéòå AUX TX Çâóêîâîé, êîãäà ýòîò ââîä óòâåðæäàåòñÿ, ñèãíàë áóäåò
íàïðàâëåí èç Øòûðüêà 5 Ïëîñêèé TX çâóêîâîé ÷åðåç ê çâóêîâîìó PA
íåçàâèñèìîìó îò, ðàñòîï÷óò, è ïåðåäà÷à ñèãíàëîâ îáíàðóæèâàåò. Îïåðàöèÿ
This ïðîèñõîäèò òîëüêî, ïîêà ðàäèî íàõîäèòñÿ â RX ðåæèìå. Íà îïåðàöèþ â
TX ðåæèìå íå âîçäåéñòâóþò. Ýòîò ñèãíàë ìîæåò èñïîëüçîâàòüñÿ âíåøíèì
óñòðîéñòâîì, ÷òîáû îáåñïå÷èòü, ïðåäóïðåæäàþùèå òîíà ñëûøàëè ÷åðåç
ãðîìêîãîâîðèòåëü ðàäèî.
Âíóòðåííèå Äàííûå Îïöèè, ãîòîâûå, êîãäà ýòà ôóíêöèÿ ïðîãðàììèðóåòñÿ â
ðàäèî, ýòî ïðèíÿòû, ÷òî ïîñëåäîâàòåëüíàÿ ñåòåâàÿ ïëàòà îïöèè
ïðèñïîñîáëåíà. Ïàäàþùèé êðàé íà ýòîì ââîäå óêàçûâàåò, ÷òî âíóòðåííÿÿ
ñåòåâàÿ ïëàòà îïöèè õî÷åò ïîñûëàòü íåêîòîðûå äàííûå íà ìèêðîïðîöåññîð.
Ýòîò ââîä âûçîâåò ïðåðûâàíèå, ïîñêîëüêó ëèíèÿ íå ìîæåò îñòàâàòüñÿ íèçêî
äëÿ ïðîäîëæèòåëüíîñòè äîñòàòî÷íî äëèííûé, ÷òîáû ïîçâîëèòü îïðàøèâàòü,
÷òîáû ðàáîòàòü. Ýòà ëèíèÿ òàêæå èñïîëüçóåòñÿ, ÷òîáû ïîäòâåðäèòü êàæäûé
áàéò äàííûõ, ïîñëàííûõ ñåòåâîé ïëàòå.
Âíóòðåííÿÿ Îïöèÿ Äåêîäèðóåò, êîãäà ýòà ëèíèÿ óòâåðæäàåòñÿ, âíóòðåííÿÿ
ñåòåâàÿ ïëàòà îïöèè óêàçûâàåò, ÷òî ðàäèî òîëüêî áûëî âûçâàíî,
ñëåäîâàòåëüíî ðàäèî áóäåò äåéñòâîâàòü ñîîòâåòñòâåííî, çîíäèðóÿ òðåâîãó
îáðàùåíèÿ, âûñâå÷èâàÿ LEDS, è ò.ä.
Transcrypt: Óíè÷òîæèòå Ðàäèî, êîãäà ýòà ëèíèÿ óòâåðæäàåòñÿ, âñå êíîïêè
çà èñêëþ÷åíèåì âêë\âûêë áóäóò áëîêèðîâàíû, è ðàäèî áóäåò ïîñòîÿííî
ïðèãëóøàòüñÿ.
RX ÇÂÓÊÎÂÎÉ
________
Ýòî ñâîéñòâî äàåò âîçìîæíîñòü Rx Çâóêîâîìó ïóòè âûâîäà áûòü
îïðåäåëåííûì, ÷òîáû óäîâëåòâîðèòü ôîðìó çâóêîâûõ òðåáóåìîãî, òî åñòü
ãîëîñ èëè äàííûå. Âûáåðèòå ÔÈËÜÒÐÎÂÀÍÍÛÉ äëÿ âûâîäà ðå÷è è ÏËÎÑÊÈÉ äëÿ
âûâîäà äàííûõ, òî åñòü íà ìîäåì.
GP I/O Lines
The General Purpose (GP) I/O Lines provide electrical connections
between the radio and external facilities, e.g. external PTT, external
alarm and internal option boards. Details of the connectivity between
the GP Lines, the Accessory Connector and the Internal Option Connectors
are included in the Service Manual for the radio.
'A2', 4-channel radio models, have limited GP I/O capability. See
Appendix B of the GM350 service/product manual for details.
The I/O Assignment combo box enables correct selection for standard
option boards and accessories, or 'Free Format' where the dealer must
define each line individually.
FREE FORMAT - Dealer Defined I/O TRANSCRYPT - Use when
Transcrypt scrambler option board fitted SMARTRUNK II - Use when
Selectone Smartrunk II option board fitted ZR350 - SIMPLEX - Use to
configure the GP I/O for simplex telephone interconnect ZR350, ZR320,
ZR340 RICK - TX - Use to set up correct signals to act as the TX
radio in a uni-directional mobile repeater RICK - RX - Use to set up
correct signals to act as the RX radio in a uni-directional mobile
repeater Other Standard Options may be added from time to time.
The GP lines and their directions are identified in Appendix B of the
Service Manual together with the functions that can be allocated to
each.
Output Function Descriptions
______________________
Carrier Detect The output is asserted whenever carrier is detected and
de-asserted when no carrier is present or the radio is in transmit mode.
PL/DPL Detect The output is asserted whenever the correct decode tone PL
or digital PL is detected and de-asserted when any other code is
detected or the radio is in transmit mode.
Car Radio Mute The output is active whenever the loudspeaker audio is
turned on (defined by squelch setting) and remains active for 4 seconds
after the loudspeaker is turned off.
Radio Busy The output is asserted whenever carrier is detected or the
radio is in transmit mode.
External Alarm The output is asserted when an individual decode has been
received with external alarm enabled.
Internal Option Board Enable The microprocessor can control this line on
a per channel basis to enable/disable a non-serial bus type option
board.
Transcrypt: Coded/Clear Select The output indicates the required
coded/clear status to the Transcrypt module High (5V) = Clear Low (0V) =
Coded This line will be toggled when the user presses a button
designated for this task.
Transcrypt: Key Select Every time the user presses a button designated
as Key Select, this line will be pulsed low for 100ms. This will cause
the Transcrypt module to change scramble key. The module provides an
audible feedback of the key selected.
Input Function Descriptions
_____________________
Channel Steering When channel steering is in use, 'n' input pins will
have been configured in channel steering mode where n is 1, 2, 3, or 4.
The software takes the state of these inputs (asserted = 1, de-asserted
= 0) and brings them together to form an n-bit value in the order GP6 to
GP1 (MSB to LSB). When this value is zero, the channel may be freely
selected using the channel select buttons. When this value is non-zero,
the channel select buttons are locked and the channel is set to
correspond to the chosen value. As the maximum value for n is four, the
highest channel selectable by this method will be binary 1111, i.e.
channel 15. If the chosen value is greater than the number of channels
available in the radio, the highest channel number available will be
chosen. When the input value is reset to zero, the radio will return to
the last user selected channel.
Hook Hook performs the same function as microphone hook. When rear hook
is enabled, the front hook signal is ignored, i.e. there is no need to
" ground " the front hook when an external mic is being used, as the hook
status is taken from the rear hook connection.
PTT (Voice) When voice mode is selected it is assumed that the external
PTT is a mechanical switch that requires software debouncing. When a PTT
press is detected, TX audio will be routed from the microphone path.
PTT (Data) When data mode is selected, it is assumed that the external
PTT is an electronic switch, e.g. a modem, that requires the fastest
possible radio response and no software debouncing. When a PTT press is
detected, the microphone path will be muted and the TX audio will be
routed from the Flat TX audio input.
PTT (Voice & Data) When data and voice mode is selected, it is assumed
that the external PTT is an electronic switch, e.g. a modem, that
requires the fastest possible radio response and no software debouncing.
When a PTT press is detected, both the microphone path and the Flat TX
audio input will be enabled and the two signals will be summed inside
the AFIC to form the TX signal.
Mute Audio PA When this input is asserted, the audio PA will be muted.
When this input is de-asserted, the audio PA will operate under normal
software control and follow squelch as required.
Open RX Audio When this input is asserted, the signal at AFIC RX IN,
i.e. discriminator audio, will be routed through to the audio PA
independent of squelch and signalling detect. When this signal is
de-asserted, the audio PA will be closed. This operation occurs only
whilst the radio is in RX mode. Operation in TX mode is not affected.
Open AUX RX Audio When this input is asserted, the signal at AFIC
AUX_RX_IN, i.e. internal option board audio, will be routed through to
the audio PA independent of squelch and signalling detect. When this
input is de-asserted, the audio PA will be closed. This operation occurs
only whilst the radio is in RX mode. Operation in TX mode is not
affected. This signal can be used by an internal options board to
provide alert tones.
Open TX Audio When this input is asserted, the signal will be routed
from the AFIC TX IN, i.e. the microphone input, through to the audio PA
independent of squelch and signalling detect. This operation occurs only
whilst the radio is in RX mode. Operation in TX mode is not affected.
This signal can be used by an external device to provide alert tones
heard through the radio's loudspeaker.
Open AUX TX Audio When this input is asserted, the signal will be routed
from Pin 5 Flat TX audio through to the audio PA independent of squelch
and signalling detect. This operation occurs only whilst the radio is in
RX mode. Operation in TX mode is not affected. This signal can be used
by an external device to provide alert tones heard through the radio's
loudspeaker.
Internal Option Data Ready When this function is programmed into the
radio, it is assumed that a serial option board is fitted. A falling
edge on this input indicates that the internal option board wants to
send some data to the microprocessor. This input will trigger an
interrupt as the line may not stay low for a duration long enough to
allow polling to work. This line is also used to acknowledge each byte
of data sent to the board.
Internal Option Decode When this line is asserted, an internal option
board is indicating that the radio has just been called, therefore the
radio will act correspondingly by sounding the call alert, flashing
LEDs, etc.
Transcrypt: Kill Radio When this line is asserted, all buttons except
on/off will be locked and the radio will be permanently muted.
RX AUDIO
________
This feature enables the Rx Audio output path to be specified to suit
the form of audio required, i.e. voice or data. Select FILTERED for
speech output and FLAT for data output, i.e. to a modem.
Scan
The scan feature, which is available on A3 model display radios only,
will cause the radio to search through a pre-defined list of channels
looking for a condition that will cause the radio to unmute. Whilst
searching for unmute conditions, the radio is in 'active scan'; having
found the required conditions, the radio will 'land' on the channel.
There are two separate, independent scan lists called A and B. One
option button can be programmed to start/stop Scan A and another for
Scan B.
If channel numbers are entered into a scan list but no option button is
programmed to start/stop that scan list, an error message will be sent
to the codeplug validation log. Similarly, if an option button is
programmed to start/stop a particular scan list but no channels are
entered into the list, an error message will be sent to the log.
During active scan, the radio searches through the scan list's channels
in the order that the channels appear in the scan list. Channels may be
included in the scan list more than once in order to increase the
scanning priority of the channel(s) by being scanned more frequently
than other channels which are entered only once in the scan list.
The radio supports several scan modes which influence the conditions
required for the radio to land on a channel and also the conditions
required for the radio to resume active scan. When landed on a channel,
the radio enters either sweep mode or listen mode (also known as scan
reset mode). Sweep mode allows a fast scan of active channels (like a
" scanner " ); listen mode allows conversations during scan.
Scan LED
Whilst actively scanning, the Scanning LED indication will be given.
When scan lands on a channel, then the Channel Busy LED indication will
be given whilst carrier is detected. The Scanning LED indication may be
disabled per scan list, in which case no LED indication is given whilst
the radio is actively scanning.
Talkback Allowed
Check the identified check box for Scan A and/or Scan B, as appropriate,
to enable Talkback Allowed.
With Talkback Allowed enabled, when scan has landed on a channel,
transmission will occur on that channel irrespective of the Tx mode
setting.
With Talkback Allowed disabled, when scan has landed on a channel,
transmission will occur on the channel specified by the Tx mode unless
that mode is Last Free or Last Busy, in which case, transmission will
occur on the landed channel.
Carrier Squelch Only
When this feature is enabled, the radio ignores the unmute condition
required by the channels and instead, scans for the presence of carrier.
If carrier is detected the radio will land on the channel and unmute
regardless of the receive squelch setting. This allows for a much faster
scan, as the radio is not checking for PL/DPL (which takes up to 250ms
per channel instead of around 50ms for just checking for carrier).
Include Current Channel
This feature may optionally be enabled per scan list. When enabled, this
option will add the current radio channel, i.e. the channel the radio is
on at the point at which scan operation is started, to the scan list. If
the scan list already contains 16 channels, then the 16th channel will
be ignored and the current channel used as the 16th scan channel.
Nuisance Reset
During scanning it is possible to delete channels from the scan list
using an option button programmed as " nuisance delete " . It is not
possible to nuisance delete the priority channel, the last remaining
channel in a scan list, or the home channel. All other scan channels,
including the 'last free' and 'last busy' channels can be nuisance
deleted. It is not possible to attempt nuisance delete when scan has not
landed.
If the nuisance reset (on scan exit) option is enabled for a particular
scan list, on exiting scan, nuisance deleted channels will be recovered.
If the nuisance reset (on scan exit)option is not enabled for a
particular scan list, deleted channels can only be recovered by turning
the radio off and on again. However, a channel included through the
include current channel feature will be lost on scan exit.
Transmit Mode
Where the radio transmits during scan is determined by the scan list's
scan Tx mode whether the radio is actively scanning or landed, and if
landed, whether talkback is enabled or disabled. The four Tx modes are:
Designated Means the transmit channel is that defined as 'Designated'
for the current scan list.
Home Channel Means the channel in use when scan was started.
Last Free Means the last channel found in the current scan list that was
not busy, i.e. the one without carrier. If there are no free channels
available then transmit will be disabled until a free channel is found.
Last Busy Means the last channel that scan landed on. When scan is first
started, i.e. before it lands on any channels, the transmit channel will
default to the last selected channel.
Designated Tx Channel
This enables the RSS to identify a particular channel for the radio to
transmit on when the Transmit Mode is set to 'Designated'.
Reset (Hang) Time
Determines how long the radio will remain on the channel after receiving
the end of a transmission or after releasing PTT.
Sweep Time
Programmable per scan list and used in the scan 'Sweep Mode'. On
entering sweep mode, the radio's sweep timer starts to run and the radio
recommences scanning when the unmute condition is lost or when the sweep
timer expires.
Sweep mode is disabled for a given scan list by programming a Sweep Time
of zero. Note that this configuration is required to make GM350 scan
function as per GM300 and GP300, and allow conversations on a PL only
channel.
Priority Channel
Any channel may be designated as a priority channel. The programmable
priority check interval determines the frequency at which the priority
channel is checked both, while the radio is actively scanning other
channels and while it is landed on another channel. If priority channel
operation is not required, this option is left blank.
If carrier is present on the priority channel then the radio will stay
on the channel and look for any other condition required for the radio
to unmute. Looking for the unmute condition on anything other then a
carrier squelch channel will significantly disrupt the receive audio.
The Priority Channel alert will be sounded when the radio detects the
unmute condition on the priority channel. The radio will be in listen
mode on landing on the priority channel.
Priority Sample Time
The programmable interval that determines the frequency with which the
priority channel is checked both, while the radio is actively scanning
other channels and, while it is landed on another channel.
Priority Channel Alert
The priority channel alert is sounded when the radio detects the unmute
condition on the priority channel during scanning. The alert is a
high-frequency, interrupted (81 ms on, 97 ms off, 81 ms on)alert tone.
Scan Start Alert
The Start Alert is sounded whenever scan is resumed. The alert is a
high-frequency, interrupted (48 ms on, 48 ms off) alert tone, sounded
four times.
Scan Lists A and B
Each of the two scan lists may include a maximum of 16 channels. If
either list has no entries but an option button is programmed to start
that list's scan, an error message will be displayed. If either list has
channels included but no option button programmed; again, an error
message will be displayed. Unused entries in the scan list should be
left blank.