CB Radio Controls.
The controls available on a radio will depend upon the make and model. Some
radios may have many controls, although many will have little more than the
minimum of the on/off switch, Volume, squelch, and channel selector.
AF Gain: Same as the
Volume (see below).
ANL: Automatic Noise Limiter. Used to reduce the background noise in
AM CBs, but no use on
FM sets.
Beep: Some CBs send a tone when you let go of the microphone. The tone is
to let others know that you have finished talking. The Beep switch allows you to
turn this feature on or off.
Cal: Internal
SWR
meter calibration. Use this to set the SWR meter (also see
SWR switch, below).
CH 9: Takes the radio to channel 9, regardless of the channel selector
position. Channel 9 has always been considered as an emergency channel, so this
function was used to call for assistance in an emergency.
CH 19: Takes the radio to channel 19, regardless of the channel selector
position. Channel 19 is used as the calling channel.
Channel change: Used to select the channel (frequency) you wish to use.
People usually call out on CH19, although some use CH14.
Clarifier:. Used to adjust the receiver frequency slightly. This is only
of use if someone you are listening to is not quite on frequency and sounds
distorted. This has no effect on your transmit frequency.
Clear / Normal: Tone adjustment for transmitted sound. In the "clear"
position, the tone will be higher.
Delta Tune: Same as clarifier (above), but usually in the form of a three
position switch.
Dimmer: Adjusts the brightness of the channel display and/or meter
illumination.
FWD: See Cal (above).
Hi Cut: Same as a tone control, except that it is just a two position switch
designed to reduce the high frequencies through the speaker. This can be useful in reducing
the background noise with weaker signals.
Mic Gain: Adjusts the level of your outgoing sound - how loud you sound to other
people. Unless you use some kind of add-on power microphone, this control is usually
just turned to the maximum. If people say you are too loud, over deviating, over
modulating or over the top, then turn this down a bit.
