Cobra Electronics 29 LX LE - Manual (Page 13)

...The.S/RF-SWR-CAL.switch.must.be.in.the.S/RF.
setting.to.read.the.meter.
Operation
13
1
S-Meter S-Meter
Swings.proportionately.to.strength.of.incoming.
signal.when.receiving.
. Unit.should.be.in.CB.mode..Rotate.channel
selector.clockwide.or.counter-clockwise.to.
select.desired.channel.
1
Selecting A
Channel
Selecting A Channel
DYNAMIKE RF GAIN DEL
MIN MIN MAX
M
EN
U PU
SH ENT
E R
SIG
F
+30dB
1 3 5 7 9
RX
MEM
VOL SQ DYNAMIKE
M
EN
U PU
SH EN
SIG
RF
+30dB
1
1.5 2 3
CAL
3 5 7 9
SWR
RX
S/RF