Adding Crystals - Radio Shack 21-1620 Owner's Manual

21-1620.fm Page 24 Thursday, August 5, 1999 11:16 AM

ADDING CRYSTALS

Your TRC-235 includes two crystals
(transmit and receive) installed in channel
position A. The crystals let you use the CB
on channel 14. You can add two more
crystals in channel positions B and C so
you can use any two other channels of the
40 allotted to CBs. However, you must
use only crystals specifically designed for
the TRC-235, available from your local
RadioShack store. Be sure to specify the
channel you want and the TRC-235's cat-
alog number (Cat. No. 21-1620).
Note: Channel A crystals are soldered in,
and can be replaced only by a qualified
technician.
The following chart shows the frequency
pairs (in MHz for receiving and transmit-
)
ting on each CB channel.
Note: Receive crystals use a frequency
455 kHz lower than transmit crystals.
Channel Transmit
1 26.965
2 26.975
3 26.985
4 27.005
5 27.015
6 27.025
7 27.035
8 27.055
9 27.065
10 27.075
11 27.085
12 27.105
13 27.115
14 27.125
15 27.135
24
Receive
26.510
26.520
26.530
26.550
26.560
26.570
26.580
26.600
26.610
26.620
26.630
26.650
26.660
26.670
26.680