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Maintenance And
Troubleshooting
Operating Your Radio
Maintenance
Very little maintenance is required to keep your CobraMarine
in good operating condition.
Keep the radio and charger clean by wiping with a soft cloth and mild
detergent. Do not use solvents or harsh or abrasive cleaners, which could
damage the case or scratch the LCD screen.
If the radio is exposed to salt water, wipe with a soft, moist cloth at least once a day
to prevent build-up of salt deposits, which could interfere with button operation.
If the radio will be stored for a long period, such as over the winter,
remove the batteries from the battery tray and store them in a separate
package. This is especially so if you are using alkaline batteries.
Troubleshooting
Problem
Possible Cause(s)
No display on LCD when
Batteries are exhausted
radio is turned On
Batteries not installed
properly
NiMH batteries run
Batteries are at the
down quickly
end of their life
Will transmit at
Batteries are low
one (1) watt, but not
at five (5) watts
Selected channel is imited
to one (1) watt
Will not transmit
Selected channel is
limited to receive only
No sound from speaker
Volume level is too low or
squelch level is too deep
No response to
Key lock is On
button press
No answer to calls
Out of range of
other station
Signal is blocked
by terrain
44 English
•
™
VHF radio
•
Solution(s)
Recharge or
replace batteries
Remove batteries and
reinstall according to
polarity markings
Replace with new
batteries
Recharge or
replace batteries
Switch to
another channel
Switch to
another channel
Re-adjust volume
and squelch
Press Backlight/
Key Lock button
Switch to five (5)
watts or move closer
Move until you have a "line-
of-sight" to the other station
Specifications
Operating Your Radio
Specifications
General
Number of Channels
Channel Spacing
Modulation
Input Voltage
Battery Life:
5% TX, 5% RX, 90% Stand-by
Current Drain:
Stand-by
Receive
Transmit
Temperature Range
Radio Dimensions
Radio Weight
Receiver
Frequency Range
Receiver Type
Sensitivity:
20 dB Quieting
12 dB Sinad
Adjacent Channel Selectivity
Intermodulation and Rejection
Spurious and Image Rejection
AF Output
Transmitter
Frequency Range: TX
RF Output Power
Spurious Emissions
Microphone Type
Frequency Stability
FM Hum and Noise
•
All U.S., Canadian, and International
10 NOAA Weather Channels
25 kHz
16 KOF3E
7.2 VDC
Alkaline Batteries:
8 Hours @ 5 Watts, 10 hours @ 1 Watt
40 mA
200 mA
1.8 A @ High power
0.7 A @ Low
-20˚C to 60˚C
5.5" x 2.2" x 1.4"
(14 cm x 5.6 cm x 3.6 cm)
1.1 lbs (0.5 kg)
156.050 to 163.275 MHz
Double Conversion Super-Heterodyne
0.35 uV
0.30 uV
-60 dB
-60 dB
-60 dB
250 mW @ 8 Ohms
156.025 to 157.425 MHz
1 and 5 Watts
-60 dB High -55 dB Low
Condenser
+/-5 ppm
-40 dB
Nothing comes close to a Cobra
®
45
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