17
REPLACING THE FUSE
The TRC-502’s 2-amp in-line fuse helps
protect your CB from power surges and
short circuits. When replacement is re-
quired, use a 2-amp, slow-blow glass
fuse, such as Cat. No. 270-1023.
Caution: Do not use a fuse with ratings
other than those specified here. Doing
so might damage your CB.
Follow these steps to replace the fuse.
1. Make sure the power source and CB
are both off.
2. Hold the fuse holder by both ends,
push the ends together, twist one
end counterclockwise, then pull
them apart.
3. Remove the old fuse and inspect its
condition. If it is not blown, reinsert
it. If it is blown, insert a new one of
the same type and rating.
4. Push the fuse holder ends together
and twist one end clockwise.
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18
SPECIFICATIONS
RECEIVER
Frequency Coverage ..................... All 40 Channels (Class D) 26.965 to 27.405 MHz
Sensitivity .................................................................... 0.5 uV or Better for 10 dB S/N
Squelch Sensitivity ................................... From 0.5 uV to 1 mV Adjustable (Nominal)
Frequency Response .......................................................... – 6 dB 450 Hz to 2.5 kHz
Adjacent Channel Selectivity .................................................... 45 dB at 10 kHz Away
Audio Output Power .......................................................................................... 1 Watt
Cross Modulation .............................................................................................. 50 dB
TRANSMITTER
Frequency Coverage ..................... All 40 Channels (Class D) 26.965 to 27.405 MHz
Frequency Tolerance ................................................................. +/– 100 Hz (Nominal)
Output Power .............................................................................. 3.7 Watts (Nominal)
Modulation Type ..................................................................................................... A3
Antenna Impedance ....................................................................................... 50 Ohm
Spurious Emission ........................................................................... – 67 dB or Better
Modulation Capability ........................................................................................... 90%
Current Drain ............ 1.1 Amps with no modulation; 1.5 Amps with 80% modulation
Power Requirements ..................................................... 13.8 V DC, Negative Ground
GENERAL
Dimensions ........................................ 6
6
/
8
×
4
2
/
8
×
1
3
/
8
Inches (171
×
108
×
35 mm)
Weight (with microphone) ..................................................................... 21 0z. (595 g)
Specifications are typical, individual units might vary. Specifications are subject to
change and improvement without notice.
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