User Manual

GMH Series VHF Radio Installation and Programming
BK RADIO Page 2-11
2.2.7 Enter Channel Frequencies and Code Guard Values
At the starting point for Channel 0, the display
shows PRG Ch 000. At this point, a channel number
can now be pressed to allow access to the
frequency and Code Guard values for that channel.
NOTE: A valid receive frequency must be
programmed into each channel intended for
use. If a 0 value or an invalid frequency is
programmed, the display will give a false
reading in the operation mode, and may
result in radio malfunction. If a malfunction
occurs, reset the radio by turning it off and
then back on.
1. Press 1 and the display will show PRG Ch 001. This
is the starting point for entering channel 1 values.
2. Press the [FCN] key and the upper part of the display
will show PRG RX. This is the receive frequency for
channel 1 (in MHz).
3. If the displayed frequency is correct, press the
[FCN]
key to advance to the next value.
If a new frequency is desired, press the [CLR] key
followed by the digits of the desired frequency. Then
press the [ENT] key to store this frequency and
automatically advance to the next value.
4. After the receive frequency is set, the upper part of
the display will show PRG RX CG. This is the Code
Guard value for Channel 1 receive.
NOTE: 0.0 indicates carrier squelch operation (no
Code Guard).
If the displayed value is correct, press the
[FCN]
key
to advance to the next value.
If a new value is desired, press the
[CLR]
key to
reset the display to 0.0. Press the number keys 0
thru 9 to enter a Tone Code Guard value. See
"Tone Code Guard Values" on page 2-14.
To enter a Digital Code Guard value press the
[#]
key, causing the letter
D
to appear followed by three
zeros. Enter the desired digital code using keys 0
thru 7 (keys 5 & 9 do not respond). See "Digital
Code Guard Values" on page 2-14. Pressing the
[PRI]
key after the three-digit code has been
entered allows the digital code to be inverted. When
the displayed value is correct, press the
[ENT]
key
to store the Code Guard value and automatically
advance to the next value.
5. After the receive Code Guard is set, the upper part of
the display will show
PRG TX
. This is the
transmitter frequency for Channel 1. If it is correct,
press the
[FCN]
key to advance to the next value.