Tekcom TM-338, Owner'S Manual

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Page 43 Page 44
MAINTENANCE
Your VHF Marine Radio *** is a marine radio of water proof who can meet the
requirement of JIS level 7, gives you a good reliability when using in marine
circumstance.
The equipment is designed to be maintenance free. To keep your radio in good
working condition:
l
Never unscrew the equipment, either the base station or handset, for in
such case, the wat er proof performance will be greatly damaged.
l
If the radio becomes dirty and dusty, wipe it clean with a moisture cloth, but
pay attention to never using such solvents as benzene or alcohol, for they
may damage the radio surfaces.
l
Once your equipment do not work properly, never allow an unqualified
person to tamper with internal adjustments. Please contact the local dealer
for help.
TROUBLE SHOOTING
Item Symptom Cause/Remedy
1 Unit can not be powered
on.
l
Check the connection to the base
station.
l
Check the volume control.
2 No sound comes from
the speaker
l
Set [VOL] to a suitable level.
l
Set squelch to the threshold point.
3 Transmitting is
impossible, or high
power can not be
selected.
l
Check to see if the PTT switch is
defective.
l
Check to see if the microphone or MIC
jack is defective.
l
Some channels are for low power or
receive only, change to another channel.
l
Push H/L to select high power.
4 Low receiver sensitivity.
l
Check to see if the antenna being bad
connected.
l
Check the connection between coaxial
cable and base station.
SPECIFICATION
TX Frequency…………………………...……… 156.050 ~ 157.425 MHz
RX Frequency.............…………………………. 156.025 ~162.025 MHz
Channels........................…………………………..55 USA Channels
5 5 I N T C h a n n e l s
10 Memory Channels
Modulation type.........................………………………..……………... FM
Antenna impedance...........................………………………...... 50 Ohm
Microphone...............................……………………...... condenser type
Power supply....................................………………………….. 13.8V DC
Sensitivity at 12dB Sinad.......................................……………..... 0.5
µ
V
Adjacent Channel Rejection................................……………........ 70dB
Audio output power.............................……………........... 2W @ 8 Ohm
Audio Distortion ...............................……………………….............. 10%
RF Output Power....................…………………... High: 23W/Low: 1W
Harmonic Emissions................……………... High: 80dB/Low: 60dB
Dimensions (HWT)..........................................……..... 71×161×147mm
Weight …………………...................................…………………... 1290g