1. Our CTCSS decoder display can decode and display the 50 CTCSS tone. CTCSS tone is represented by a OLED display module.
2. It also has a CTCSS tone valid output pin which can be programmed to 5V signal (OLED Display "ON") the presence of one tone in particular.
3. Response time is very fast taking < 100mS of valid CTCSS tone to decode. The tone valid output frequency error allowance is 0.5%.
4. The tone valid output reacts immediately to the detection of the programmed tone but has a 0.5 second drop out delay.
5. Using UP/Down pins Select CTCSS tone valid output. Keep CTCSS tone valid output tones frequency setting parameter in MCU internal EEPROM, don't worry about power off.
6. It's powered by 7 to 15V DC and draws less them 15 mA.
7.
The product needs to be assembled and soldered
by yourself.
CTCSS tones listed
|
Tone Number |
Tones Frequency |
Tone Number |
Tones Frequency |
|
0 |
254.1 |
28 |
136.5 |
|
1 |
250.3 |
29 |
131.8 |
|
2 |
241.8 |
30 |
127.3 |
|
3 |
233.6 |
31 |
123.0 |
|
4 |
229.1 |
32 (Tone J) |
118.8 |
|
5 |
225.7 |
33 |
114.8 |
|
6 |
218.1 |
34 (Tone H) |
110.9 |
|
7 |
210.7 |
35 |
107.2 |
|
8 |
206.5 |
36 (Tone G) |
103.5 |
|
9 |
203.5 |
37 |
100.0 |
|
10 |
199.5 |
38 |
97.4 |
|
11 |
196.6 |
39 (Tone F) |
94.8 |
|
12 |
192.8 |
40 |
91.5 |
|
13 |
189.9 |
41(Tone E) |
88.5 |
|
14 |
186.2 |
42 |
85.4 |
|
15 |
183.5 |
43(Tone D) |
82.5 |
|
16 |
179.9 |
44 |
79.7 |
|
17 |
177.3 |
45(Tone C) |
77.0 |
|
18 |
173.8 |
46 |
74.4 |
|
19 |
171.3 |
47(Tone B) |
71.9 |
|
20 |
167.9 |
48 |
69.3 |
|
21 |
165.5 |
49(Tone A) |
67.0 |
|
22 |
162.2 |
|
|
|
23 |
159.8 |
|
|
|
24 |
156.7 |
|
|
|
25 |
151.4 |
|
|
|
26 |
146.2 |
|
|
|
27 |
141.3 |
|
|
BOM List:
|
Item |
Quantity |
Note |
|
IC |
1 |
DIP 16 |
|
IC |
1 |
DIP 8, OPA LM358 |
|
78L05
|
1 |
TO-92 |
|
OLED |
1 |
0.91”Module |
|
Crystal 32MHz |
1 |
DIP 2 |
|
50K Resistor |
2 |
1/8W, 50K or 47K |
|
100K
Resistor |
2 |
1/8W,100K or 150K
|
|
20K
Resistor |
1 |
1/8W |
|
680K
Resistor |
1 |
1/8W |
|
VR
10K |
1 |
DIP 3 |
|
100uF |
1 |
10uF or 47uF |
|
0.474uF
|
1 |
474 |
|
0.1uF
|
3 |
104 |
|
0.01uF
|
1 |
103 |
|
0.001uF
|
1 |
102 |
|
20pF |
2 |
20pF or 22pF |
|
PIN
Header |
1 |
|
|
PCB
|
1 |
45 x 43 mm. |