Cobra Electronics Cobra 29 NW ST - Manual (Page 6)

E R F G A I N
S W R C A L
N B /
A N L
A N L
O F F
C B
PA
C H 1 9
C H 9
N O R
A X M I N M A X
D I M M E R
H I
N O R
M I N M A X
R X / T X
29 NW ST
TONE
While holding mic
button adjust the
SWR CAL knob so the
meter needle swings
to the CAL ▼ mark on
the meter (located on the right).
Operation Operation
Calibrate For
SWR (Standing
Wave Ratio)
11 10
continued
Note
Calibration must be made in an
open area (never in a garage).
Vehicle doors must be closed. No
one should be standing near the
antenna. (See your antenna
directions for more complete
information).
Note
The reading will be slightly high-
er on Channels 1 and 40 com-
pared to Channel 20.
Push and hold mic button.
Switch to the CAL position. 2
1
3
Calibrate for SWR (Standing Wave Ratio)
SWR calibration is done to properly adjust the
length of the antenna and to monitor the quality
of the coaxial cable and all RF connections.
This calibration is critical in order to achieve opti-
mum performance.
D Y N A M I K E R F G A I N
S / R F
S W R
C A L
N B /
A N L
A N L
O F F
C B
PA
M I N M A X M I N M A X O F F
V O L S Q L
SIG 1 3 5 7 9 +30dB
2 3 CAL SWR
RF
29 NW ST
PUSH &
HOLD
Select channel 20.
4
E R F G A I N
S W R C A L
N B /
A N L
A N L
O F F
C B
PA
C H 1 9
C H 9
N O R
M A X M I N M A X
D I M M E R
H I
N O R
M I N M A X
R X / T X
29 NW ST
TONE
SIG 1 3 5 7 9 +30dB
2 3 CAL SWR
RF