32 BK Radio
4. Press the microphone’s
[#]
key to display the
Channel Guard channel briefly. The display shows
the group number, followed by the Channel Guard
channel, and then the selected channel.
5. Press
the
[0]
key to reset all values to the original
programming, or press different number keys (1-
16) to select a different set of Channel Guard
Values.
NOTE
:
During Scan or Priority Scan, the receiver
does not use the user-selected Channel
Guard values. However, user-selected
Channel Guard values are used by the
transmitter in Scan Mode.
OTHER OPERATIONAL FEATURES
The BK Radio D Series radio is based on a
microprocessor core that allows extra features and
operational characteristics to be programmed into the
radio. Your dealer can help define the best operational
settings for your system and program them into the
radio.
SCAN DELAY
Scan delay lets the radio receive a response to a
transmission before scanning the other channels for
activity. If you find that your scanner is restarting
before message replies are received, you can ask your
dealer to increase the scan delay time (0-7.5 seconds).
This timer is also used to allow for Talkback Scan,
Mixed Mode Talkback, and Unit-To-Unit Callback.
HI/LO POWER
Each channel in the radio can be individually
programmed to always transmit in low-power mode,
regardless of the position of the radio's LPW button (or
microphone keypad
[FCN]
menu setting). If the
programming for the channel allows high-power
transmissions, the power level can be selected with the
LPW button or the keypad
[FCN]
menu.
DMH Owner’s Manual 9
The display can show channel numbers (Numeric
Mode), channel labels (Alphanumeric Mode), or
receive and transmit frequencies. The Display Mode
and Channel Labels are programmed by the technician
along with Group Labels (if applicable) and channel
frequencies. The display shows slightly different
indications during Channel Scan and Priority Scan
operation in alphanumeric and numeric modes.
TRANSMIT
1.
Press the PTT (Push-To-Talk) switch on the
microphone. The
TX
annunciator appears on the
display and the red Transmit indicator illuminates
while the PTT is pressed.
2.
Talk in a normal voice with the microphone
approximately one to two inches from your mouth.
3. Release the PTT switch to stop transmitting.
If the
TX
annunciator does not appear and a tone is
heard, you are on a receive-only channel or the
channel is busy (if Busy Channel Lockout is enabled).
Turn the Channel Selector knob to an authorized
transmit channel or wait until the channel is clear (if
Busy Channel Lockout is installed).
If the length of your transmission exceeds the preset
Time-Out Timer setting, the transmitter automatically
shuts off and a tone sounds. To continue the
transmission, release the PTT switch, and then press it
again and continue talking.
CHANNEL GUARD OPERATION
Channel Guard allows one radio or group of radios to
be selectively called within a system. If the radio has
been programmed with Channel Guard, use the
following receive and transmit instructions.
ANALOG SQUELCH CONTROL
Sub-audible signaling (CTCSS/CDCSS) is used to
allow a group of radios to be selectively called in a
system. Programming the receive guard equal to zero
allows for Carrier Squelch operation, where the radio
will unmute whenever a carrier is detected.
