Operation GPH-CMD VHF Radio
Page 3-16 BK RADIO
3.13.2 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 top switch (or
keypad [FCN] menu setting). If the programming for the channel allows high-
power transmissions, the power level can be selected with a top switch or the
keypad menu.
3.13.3 DTMF ENCODING
Radios can be programmed to enable DTMF (Dual Tone Multiple Frequency)
encoding. To send DTMF tones (similar to the tones used by a standard
push-button telephone):
1. Press and hold the PTT switch.
2. Press any of the keys on the keypad.
You will hear a sidetone.
The FCN, PRI, ENT, and CLR keys respond as DTMF tones A, B, C, and D,
respectively.
3.13.4 ANI ENCODING
ANI encoding (Automatic Numeric Identification), if enabled, transmits a
sequence of DTMF tones each time you press the PTT switch. You will hear
a sidetone. Your dealer can program the ANI number to be sent.
If DTMF and ANI are both enabled, the ANI tone sequence is transmitted
only after the [ENT] key is pressed while the PTT switch is activated. You will
hear a sidetone.
3.13.5 TIME-OUT TIMER
The transmit Time-Out Timer limits the duration of calls and guards against
accidentally locking on the transmitter and tying up the radio system. Your
dealer can program the duration of the Time-Out Timer (15-225 seconds, or
disabled).
3.13.6 BUSY CHANNEL
If the radio has been programmed for Busy Channel operation, it will operate
in one of the following three Modes:
• Busy Channel Indication
• Busy Channel Lockout
• Busy Channel Lockout with Override
1 2 3
4 5 6
7 8 9
0
*
#
CLR
FCN
PRI
ENT
1 2
3
4
5
6
7
8
9
0
*
#
CLR
FCN
PRI
ENT
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