Calibrate For Swr (Standing Wave Ratio) - Cobra 29 NW LTD CLASSIC Owner's Manual

Operation
Calibrate For

Calibrate for SWR (Standing Wave Ratio)

SWR (Standing
SWR calibration is required to accurately measure
Wave Ratio)
SWR on the built in meter. We suggest performing
this calibration procedure before placing the meter
function switch into the SWR position and anytime
the antenna or coax cable is replaced to confirm
antenna system performance.
Note
Antenna Indicator LED
will illuminate when TX if
SWR is high.
Select
1
Switch to the
2
10
AW-1210041-1B_29NWLTD_CLASSIC_MANL REV_022021.indd 10-11 AW-1210041-1B_29NWLTD_CLASSIC_MANL REV_022021.indd 10-11
SWR 2 3
channel 20.
SIG 1 3 5 7 9
V O L
29 NW LTD
SWR 2 3 CAL S / R F N B /
C B
A N L
RF
S W R A N L
O F F
SIG 1 3 5 7 9 +30dB
PA
O F F
C A L
V O L S Q L D Y N A M I K E R F G A I N
O F F M I N M A X M I N M A X
CAL position.
PUSH &
HOLD
Push and hold mic button.
3
29 NW LTD CLASSIC
TONE
CAL N B / C H 1 9
S / R F
C B H I
A N L
S W R A N L C H 9
+30dB
PA
N O R
C A L O F F N O R
R F G A I N
S Q L D Y N A M I K E D I M M E R
M I N M A X M I N M A X M I N M A X
While holding mic
4
button adjust the
SWR CAL knob so the
meter needle swings
to the CAL t mark on
the meter (located on the right).
Operation
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).
RX/TX ANT
S W R C A L
SWR 2 3 CAL
RF
SIG 1 3 5 7 9 +30dB
SWR 2 3 CAL
RF
SIG 1 3 5 7 9 +30dB
continued
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