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4.
SETTING A SPECIAL
TRANSMIT FREQUENCY
NOTE: ENTER SIX DIGITS TO PROGRAM
EITHER 6- OR 7-DIGIT FREQUENCIES.
TO SET TRANSMIT FREQUENCIES:
Set standard (tabled) transmit frequencies following the
instructions on page 6.
See the box below. Set other frequencies as follows:
a.
Pick up the telephone receiver and listen for the
acknowledge tone.
b.
Dial "12", followed by the first six digits of the
frequency setting.
UHF UNITS: Frequency step size is 12.5 kHz;
the selection range is 450.000 to 469.9875 MHz.
VHF UNITS: Frequency step size is 5 kHz
OR 12.5 kHz. Refer to the following guidelines:
• For VHF 5 kHz step size, transmit frequency
range is 150.000 to 164.995 MHz.
• For VHF 12.5 kHz step size, transmit frequency
range is 150.000 to 164.9875 MHz.
TABLE 2:
QUIET CALL TONE CODES
QUICK
Other
TALK
Radio Brands
Freq.
QC
Tone
( Hz )
CODE
Code
01
67.0
XZ
02
71.9
XA
03
74.4
WA
04
77.0
XB
05
79.7
SP
06
82.5
YZ
07
85.4
YA
08
88.5
YB
09
91.5
ZZ
10
94.8
ZA
11
97.4
ZB
12
100.0
1Z
13
103.5
1A
14
107.2
1B
15
110.9
2Z
16
114.8
2A
17
118.8
2B
18
123.0
3Z
19
127.3
3A
20
131.8
3B
21
136.5
4Z
22
141.3
4A
23
146.2
4B
24
151.4
5Z
25
156.7
5A
26
162.2
5B
* Use Code "44" to program No Tone for systems without
a Coded Squelch Interference Eliminator feature. Refer
to the text at right.
For assistance, call RITRON at 800-872-1872, or go to http://www.ritron.com
®
Quick Talk Features/ Applications Manual
QUICK
Other
TALK
Radio Brands
Freq.
QC
Tone
( Hz )
CODE
Code
167.9
27
6Z
173.8
28
6A
179.9
29
6B
186.2
30
7Z
192.8
31
7A
203.5
32
M1
210.7
33
- -
218.1
34
- -
225.7
35
- -
233.6
36
- -
241.8
37
- -
250.3
38
- -
69.4
39
- -
159.8
40
- -
41
165.5
- -
42
171.3
- -
43
177.3
- -
No Tone
*44
- -
183.5
45
- -
189.9
46
- -
196.6
47
- -
199.5
48
- -
206.5
49
- -
229.1
50
- -
254.1
51
- -
5.
PROGRAMMING QUIET CALL
SUB-AUDIBLE SQUELCH
INTERFERENCE ELIMINATOR
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
TM
DQC
(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® QC is Ritron's trade name for what the
communications industry calls sub-audible
(below the range of human hearing) tone squelch,
or CTCSS (Continuous Tone Coded Sub-audible
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
DQC is Ritron's digital coded squelch which
works basically the same as QC, except a digital
code is transmitted with 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 QC or
DCC code and you need to remove it, follow the procedure
below, using No Tone code, "44", shown in Table 2, at left.
To Program a QC 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 left;
enter the code below.
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: "2113".
Quick Talk will respond with a confirmation tone.
e. You may either hang up or continue programming
additional features.
RECORD your frequency and squelch code—
Frequency: ______________________________ ;
QC or DQC Code: __________________________
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