Page 5
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qtm9322b.pm5
QUICK
TALK
QC
CODE
67.0
71.9
74.4
77.0
79.7
82.5
85.4
88.5
91.5
94.8
97.4
100.0
103.5
107.2
110.9
114.8
118.8
123.0
127.3
131.8
136.5
141.3
146.2
151.4
156.7
162.2
XZ
XA
WA
XB
SP
YZ
YA
YB
ZZ
ZA
ZB
1Z
1A
1B
2Z
2A
2B
3Z
3A
3B
4Z
4A
4B
5Z
5A
5B
167.9
173.8
179.9
186.2
192.8
203.5
210.7
218.1
225.7
233.6
241.8
250.3
69.4
159.8
165.5
171.3
177.3
No Tone
183.5
189.9
196.6
199.5
206.5
229.1
254.1
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
6Z
6A
6B
7Z
7A
M1
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
QUICK
TALK
QC
CODE
Freq.
( Hz )
Freq.
( Hz )
Other
Radio Brands
Tone
Code
Other
Radio Brands
Tone
Code
* Use Code "44"
to program No Tone for systems without
a Coded Squelch Interference Eliminator feature. Refer
to the text at left.
TABLE 2: QUIET CALL TONE CODES
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
*44
45
46
47
48
49
50
51
What is Quiet Call Sub Audible Coded Squelch?
The Quick Talk radio transmitter is compatible with two
standard communications industry sub-audible signaling
formats: QC® (Quiet Call Interference Eliminator), and
DQC
TM
(Digital Quiet Call Interference Eliminator). Both
Quiet Call formats unlock receivers programmed to require
these codes -- they screen out interference from other radio
systems operating on your same frequency.
QC®
Quiet Call is Ritrons trade name for what the
communications industry calls sub-audible (below
the range of human hearing) tone squelch, or
CTCSS (Continuous Tone Coded Subaudible
Squelch). Other radio manufacturers use different
trade-names for essentially the same system. You
may program a specific QC code into your Quick
Talk to transmit with the voice messages, which will
"unlock" the receivers in your radio system.
DQC
TM
Digital Quiet Call is Ritrons digital coded squelch,
and works the same as QC, except it is a
digital
code that is transmitted with the voice messages.
Do I need to program my Quick Talk with a Quiet Call
Code?
Your radio system may or may not use coded
squelch signaling. If you have programmed the Quick Talk
to match your radio frequency, and your radios are not
receiving Quick Talk transmissions unless the "monitor" or
"test" button is pressed, your system is probably using
Coded Squelch. Refer to your radio manual, or contact
your radio dealer or Ritron if you are unsure about this
issue.
If your Quick Talk was previously programmed with a Quiet
Call code and you need to remove it, follow the procedure
below, using No Tone code, "44", as shown in the table.
To Program A Quiet Call Sub-Audible Squelch Code:
a. Determine the Quiet Call code tone that your radio
system uses. If your system uses Digital Quiet Call,
go to the next page.
b. Select the desired Tone Code from Table 2 at right;
write down the code.
NOTE:
If your radio system does not use coded
squelch, program
No Tone
, code,
"44"
.
c. Pick up the telephone receiver and listen for the
acknowledge tone.
d. Dial
"21"
, then the 2-digit QC Code you have
selected.
For example, if your Quiet Call frequency is
103.5 Hz (Code 13), dial: "
21-13
".
Quick Talk will respond with a confirmation tone.
e. You may either hang up or continue programming
additional features.
PROGRAMMING THE QUIET CALL SUB-AUDIBLE CODED SQUELCH
INTERFERENCE ELIMINATOR
WRITE DOWN your frequency (from page 4), and your QC code (from page 5 or page 6).
Frequency: ____________________________ ; QC code: __________________________