RELM WIRELESS CORP. - BK RADIO DPHX51 User Manual
34 BK Radio
BUSY CHANNEL LOCKOUT
The Busy Channel Lockout feature applies
only to those channels programmed with a
receive Channel Guard value. When carrier
activity is detected on the channel selected,
the radio checks the receive Channel Guard
value. If the proper Channel Guard value is
present, the radio can transmit on that
channel, even if the Squelch knob is in the
Channel Guard position.
only to those channels programmed with a
receive Channel Guard value. When carrier
activity is detected on the channel selected,
the radio checks the receive Channel Guard
value. If the proper Channel Guard value is
present, the radio can transmit on that
channel, even if the Squelch knob is in the
Channel Guard position.
If the radio detects an incorrect value or carrier
activity only, the transmitter is disabled. If an
attempt is made to transmit, an alert tone will
be generated and the display will show the
word BUSY until the channel becomes
available or the PTT switch is released,
whether the Squelch knob is in or out of the
Channel Guard detent.
activity only, the transmitter is disabled. If an
attempt is made to transmit, an alert tone will
be generated and the display will show the
word BUSY until the channel becomes
available or the PTT switch is released,
whether the Squelch knob is in or out of the
Channel Guard detent.
Channels not programmed with a receive
Channel Guard value can be used to transmit
regardless of carrier activity.
Channel Guard value can be used to transmit
regardless of carrier activity.
BUSY CHANNEL LOCKOUT OVERRIDE
This mode operates in the same manner as
Busy Channel Lockout except that the user
can override and transmit by turning the
Squelch knob off the Channel Guard detent.
The transmitter is locked out only if the
Squelch knob is set to the Channel Guard
detent.
Busy Channel Lockout except that the user
can override and transmit by turning the
Squelch knob off the Channel Guard detent.
The transmitter is locked out only if the
Squelch knob is set to the Channel Guard
detent.
BUSY
DPH Owner’s Manual 11
2. Selective squelch is used for processing
‘Group Calls’ and ‘Unit-to-Unit Calls’. TGIDs
are assigned on a per-channel basis. Users
can be separated into Talk Groups with each
group having its own TGID. Then, on
channels programmed for Selective squelch,
the incoming signal’s NAC and TGID must
match the channels programmed receive
NAC and TGID for the radio to unmute. The
default TGID is 1. The TGID value 65535
($FFFF hex) is used to effect an “All Call”. If
the radio receives a signal with a matching
NAC and the TGID = 65535 ($FFFF hex), it
will unmute. Also, if the radio’s programmed
TGID is 65535 ($FFFF hex), it will open on
any signal with a matching NAC, ignoring the
incoming TGID. A TGID = 0 means “no
one”. If the radio is programmed with the
TGID = 0, it will accept incoming group calls
containing the “All Call” TGID, and correctly
addressed Unit-to-Unit calls.
are assigned on a per-channel basis. Users
can be separated into Talk Groups with each
group having its own TGID. Then, on
channels programmed for Selective squelch,
the incoming signal’s NAC and TGID must
match the channels programmed receive
NAC and TGID for the radio to unmute. The
default TGID is 1. The TGID value 65535
($FFFF hex) is used to effect an “All Call”. If
the radio receives a signal with a matching
NAC and the TGID = 65535 ($FFFF hex), it
will unmute. Also, if the radio’s programmed
TGID is 65535 ($FFFF hex), it will open on
any signal with a matching NAC, ignoring the
incoming TGID. A TGID = 0 means “no
one”. If the radio is programmed with the
TGID = 0, it will accept incoming group calls
containing the “All Call” TGID, and correctly
addressed Unit-to-Unit calls.
CHANNEL GUARD RECEIVE
1. Turn power on by turning the Volume knob
clockwise.
2. Select a Channel Guard channel by turning
the Channel Selector knob.
3. Adjust volume by turning the Squelch knob
clockwise until a noise is heard. Set the
volume to a comfortable level.
volume to a comfortable level.
4. Set Channel Guard Mode
by turning the
Squelch knob off (counterclockwise) into the
Channel Guard position. A message will be
heard only when the proper Channel Guard
value is received.
Channel Guard position. A message will be
heard only when the proper Channel Guard
value is received.