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The Radio Shack 19-1210 is a VHF business-band mobile two-way radio that is
suitable for use in MURS, the new
license-free VHF radio service. For information about the BTX-127 (the handheld
equivalent), see the BTX-127 page.
David Wild.
NEW! See below for more
supplimental information from the Service Manual
Setting a standard frequency and CTCSS
To set the frequency, turn the unit off, ensuring CTCSS is off. Open the small
plate cover on the bottom using a screwdriver. Set the dip switches to
"101010", hold down PTT on the microphone, then turn the unit on. Release the
PTT. If the radio beeps once, you're good to continue. Set the channel that you
want to set (on the front of the unit), then choose a dip switch setting from
the following table. Then hold down and release PTT on the microphone. If the
transciever beeps once, the frequency has been set correctly. Now set the dip
switches to 000000 and close the cover.
Setting |
Frequency |
Name |
|
Setting |
Frequency |
Name |
0000 |
151.625 |
RED DOT |
|
1000 |
151.940 |
MURS 3 |
0100 |
151.700 |
- |
|
0001 |
151.955 |
PURPLE DOT |
0101 |
151.760 |
- |
|
0010 |
154.570 |
MURS 4 |
0110 |
151.820 |
MURS 1 |
|
0011 |
154.600 |
MURS 5 |
0111 |
151.880 |
MURS 2 |
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To set the CTCSS, turn the unit off, ensuring CTCSS is set to off. Open the
cover plate on the bottom. Choose a dip switch setting from the table below,
and then hold down PTT on the microphone whilst turning the transciever on. If
you get a beep and the RX lights for about 2 seconds, you have been successful.
Now set the switches to 000000 and close the cover.
Code |
Frequency |
Setting |
|
Code |
Frequency |
Setting |
|
Code |
Frequency |
Setting |
- |
none |
000000 |
|
14 |
107.2 |
001110 |
|
28 |
173.8 |
011100 |
1 |
67.0 |
000001 |
|
15 |
110.9 |
001111 |
|
29 |
179.9 |
011101 |
2 |
71.9 |
000010 |
|
16 |
114.8 |
010000 |
|
30 |
186.2 |
011110 |
3 |
74.4 |
000011 |
|
17 |
118.8 |
010001 |
|
31 |
192.8 |
011111 |
4 |
77.0 |
000100 |
|
18 |
123.0 |
010010 |
|
32 |
203.5 |
100000 |
5 |
79.7 |
000101 |
|
19 |
127.3 |
010011 |
|
33 |
210.7 |
100001 |
6 |
82.5 |
000110 |
|
20 |
131.8 |
010100 |
|
34 |
218.1 |
100010 |
7 |
85.4 |
000111 |
|
21 |
136.5 |
010101 |
|
35 |
225.7 |
100011 |
8 |
88.5 |
001000 |
|
22 |
141.3 |
010110 |
|
36 |
233.6 |
100100 |
9 |
91.5 |
001001 |
|
23 |
146.2 |
010111 |
|
37 |
241.8 |
100101 |
10 |
94.8 |
001010 |
|
24 |
151.4 |
011000 |
|
38 |
250.3 |
100110 |
11 |
97.4 |
001011 |
|
25 |
156.7 |
011001 |
|
12 |
100.0 |
001100 |
|
26 |
162.2 |
011010 |
|
13 |
103.5 |
001101 |
|
27 |
167.9 |
011011 |
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Setting a non-standard frequency
The 19-1210 can actually be set to use pretty much any frequency between
150.775 MHz and 157.740 MHz. This frequency is programmed into an extra memory
using the method outlined below. Note that all of the non-MURS frequences
require a license for transmission. To perform this operation, you will need
open the entire case, and locate the special "set" switch. The set switch is on
top of the circuit board, about 4 inches from the front of the board and about
3 inches from the left side of the board. Don't press it yet, but when you do
need to press it you can use a screwdriver to depress the top of the square
button. Here are the instructions:
-
Open the table below (it will open in a new window) and find the frequency you
wish to use
19-1210 Special Frequency Table
-
Write down the six digits for Bank 1 and the six digits for Bank 2
-
Turn the radio on
-
Set the dip switches to the code you wrote down for Bank 1 (0=off, 1=on)
-
Press the set button. You should hear one long beep
-
Set the dip switches to the code you wrote down for Bank 2
-
Press the set button. You should hear two long beeps. (If you hear three,
something has gone wrong, so try again)
-
Turn off the radio and reset the dip switches to their previous setting
The frequency is now programmed in the extra memory, which can be alternated
with the frequency in channel 1. To switch from the standard frequency
(set by the dip switches in the usual fashion) to the extra memory, flick dip
switch 2 (second from left) on. Thanks to August Hoecker for information on the
non-standard frequency setting
Further tweaks
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