Operating instructions
Operation
Operation
29
S/RF Meter
External Speaker
S/RF Meter
This meter swings proportionately to the RF 
output (outgoing signal) while transmitting. 
External Speaker
The external speaker jack is used for remote 
receiver monitoring.
   The S/RF-SWR-CAL button must be in the  
S/RF mode.
1
Note
The external speaker should 
have 8-ohm impedance and 
be rated to handle at least 4.0 
watts. When the external speak-
er is plugged in, the internal 
speaker is automatically discon-
nected. See accessory page 41.
Note
Cobra external speakers are 
rated at 10 watts.
 Connect an external speaker to the external 
speaker jack on the rear panel. 
1
28
 To achieve the Desired Squelch Setting (DSS), 
turn the Squelch control counterclockwise 
until you hear noise. Now turn the control 
clockwise just until the noise stops. This is the 
DSS setting.
3
NOISE
WEAK SIGNALS
MEDIUM SIGNALS
STRONG SIGNALS
GATE 
Gate set to Desired  
Squelch Setting (DSS)
Setting Squelch
Continued
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