5-6-2 Reverse Function
Some repeaters utilize a "Reverse Pair",
i.e.
the
transmit
I receive frequencies are exactly the reverse of another
repeater. For example repeater A uses
146.000
for
a
transmit
frequency (INPUT) and
146.600
for
a receiver
frequency (OUTPUT). Repeater B
might
use
146.600
for
a
transmit
frequency
and
146.000
for
a receiver fre-
quency.
It
would
be
inconvenient to have
to
reprogram
the transceiver each time you wanted to use these
re-
peaters.
The
REV
/STEP key allows you to easily reverse the trans-
mit
and receive frequencies. To use the
REV
function
press the
REV
/STEP key.
The
REV
indicator will turn on in
the display to remind you
that
you are working a
re-
verse pair.
To return
to
normal press the
REV
/STEP key again. The
REV
indicator will turn off.
This function is also useful
to
check the input frequency
of the repeater
so
that
you can determine
if
you are
within range
for
simplex communications.
5-6-3 Tone Operation
Some repeaters require the
use
of a control signal
to
ac-
tivate
the repeater. Several different methods are cur-
rently in
use.
In
the United States sub-audible tones are sometimes
used.
38
different
Sub-audible frequencies are possible.
In
Europe a
1750Hz
tone is used in transmit. Press and
hold the Microphone
1750
key to
transmit
with the
ac-
cess tone; you
need
not press the PTT key.
Since this tone is required
in
Europe and the United
Kingdom a
1750
Hz tone encoder is included
with
models delivered to these countries.
5-6·4 Tone Frequency Selection
1. Press the F key for longer than 1 second. The F indi-
cator will begin to flash. Press the TONE/T.ALT key
within 10 seconds of pressing the F key.
The
current
tone frequency will show in the display.
Press the key for longer than
1 second.
2.
Rotate the tuning
control or press the
microphone UP
I DWN
switches to select the
desired tone
frequency.
3. Press any
front
panel
key
to
return to the
normal frequency
display.
Tone Frequency(
Hz)
i
67.0
107.2 .
167.9
71.9
110.9'~;
i 73.8
. 77.0 118.8 • 186.2
79.7
i 123.0 i
192.8
82.5
127.3
203.5
I
85.4
Ll.OC371.78-t·
..
-,2,-;1--;;;0-..7_-j
88.5 136.5 218.1
~?:1
14f.3
225.7.
i
94.8
~1""4"6".
2..-+--:
"2-;:;-3
3;::-.-;::-6
1 ( 9 7.4! I
1,-;5;:-;1:-:.4:;-.,---;.2:;;:4-;;;1--;..8;-
,_-;;-1-;:::00"".;:-o
-t---:1:-;:5,_6.
?!···
250.3
,
103.5 162.2 - .
~-
..
·~"~-
Note:
97.4
Hz
is available
only
for
encode.
29
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