538294
23
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No display on LCD when
radio is turned on
Batteries are exhausted
Batteries not
installed properly
Replace batteries
Remove batteries and
reinstall according to
pola rity markings
Will transmit at
one watt, but not
at five watts
Batteries are low
Selected channel is
limited to one watt
Replace batteries
Switch to
another channel
Will not transmit Selected channel is
limited to receive only
Switch to
another channel
No sound from speaker Volume level is too low or
squelch level is too deep
Re-adjust volume
and squelch
No response to
button press
Key Lock is on Press Backlight/
Key Lock button
No answer to calls Out of range of
other station
Signal is blocked
by terrain
Switch to five
watts or move closer
Move until you have
a “line-of-sight” to
the other station
41
Nothing comes close to a Cobra
®
Specifications
Intro Operation Customer
Assistance
Warranty
Notice
S
econdary Icons
Caution Warning
Installation
Customer
Assistance
Operating Your Radio
Specifications
General
Number of channels All U.S., Canadian and International
10 NOAA weather channels
Channel spacing 25 kHz
Modulation 16 KOF3E
Input voltage 7.2 VDC
Battery life: 1500mAh NiMH:
5% TX, 5% RX, 90% stand-by 15.5 hours @ 5 watts, 28 hours @ 1 watt
Current drain:
Stand-by 40 mA
Receive 200 mA
Transmit 1.8 A @ High power 0.7 A @ Low
Temperature range -20˚C to 60˚C
Radio dimensions 5.5" x 2.2" x 1.4"
(14 cm x 5.6 cm x 3.6 cm)
Radio weight 1.1 lbs (0.5 kg)
Receiver
Frequency range 156.050 to 163.275 MHz
Receiver type Double conversion super-heterodyne
Sensitivity:
20 dB Quieting 0.35 uV
12 dB Sinad 0.30 uV
Adjacent channel selectivity -60 dB
Intermodulation and rejection -60 dB
Spurious and image rejection -60 dB
AF output 250 mW @ 8 Ohms
Transmitter
Frequency range: TX 156.025 to 157.425 MHz
RF output power 1 and 5 Watts
Spurious emissions -60 dB High -55 dB Low
Microphone type Condenser
Frequency stability +/-5 ppm
FM hum and noise -40 dB
40
English
Maintenance and
Troubleshooting
Intro Operation Customer
Assistance
Warranty
Notice
S
econdary Icons
Caution Warning
Installation
Customer
Assistance
Operating Your Radio
Problem Possible Cause(s) Solution(s)
Maintenance
Very little maintenance is required to keep your CobraMarine
VHF radio
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
23


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