Ricoh 21-1812 - Manual (Page 12)

12
USING QUIET CODES
This radio uses quiet (CTCSS) codes to
screen out unwanted conversations, even if
someone is transmitting nearby on the
same channel. When a quiet code is set,
the radio sends it every time
PTT or CALL is
pressed and only responds to signals that
have the same code. Radios you plan to
use together must be set to the same code.
This radio has these quiet (CTCSS) codes.
To set the radio to use one of the codes:
1. Hold down QUIET until the QUIET
indicator flashes.
2. While the indicator flashes, repeatedly
press CHANNEL or to
select the quiet code.
3. Press QUIET again. QUIET stays lit
and the quiet (CTCSS) code is set.
To turn off the quiet feature, press QUIET so
QUIET disappears. To turn it on and use
the previously set code again, hold down
QUIET so QUIET reappears.
Channel Frequency Channel Frequency
17 118.8 Hz 21 136.5 Hz
18 123.0 Hz 22 141.3 Hz
19 127.3 Hz 23 146.2 Hz
20 131.8 Hz 24 151.4 Hz
21-1812.fm Page 12 Thursday, August 5, 1999 3:06 PM