CTCSS ENCODER SUB TONE NEW THE SMALLEST WITH OLED DISPLAY

Description: 1.Programmable crystal controlled CTCSS tone encoder kit2.It can encode the 64 CTCSS tones listed below and generates a sign wave.3. Output level is fairly flat from 67 to 254.1Hz at approx. 2.4V p-p. from 254.1 to 1000Hz at approx. 1V p-p. from 1000 to 2000Hz at approx. 560mV p-p.and then falls gradually to approx. 320mV p-p at 3500Hz, most radio require less CTCSS input level at higher frequencies so this is ideal.(10K VR adjust output level range)4.Two Pins(UP/Down) to Selected CTCSS tones .5.Keep 64 CTCSS tones setting parameter in MCU internal EEPROM, don't worry about power off. Display CTCSS tones by OLED Module .6. There is an encode enable input that connects to the radio's PTT line (active low). You can tie the encode enable input (PTT) to ground for continuous encode.7. CTCSS tones Frequency Accuracy: Guarantee ±0.2%. It's VIN powered by 7~16V DC.8. The product needs to be assembled and soldered by yourself.9. PCB size is 35 x 35mm. CTCSS tones listed No. tones No. tones No. tones No. tones No. tones 0 3500 14 254.1 28 186.2 42 136.5 56 85.4 1 2500 15 250.3 29 183.5 43 131.8 57 82.5 2 2200 16 241.8 30 179.9 44 127.3 58 79.7 3 2000 17 233.6 31 177.3 45 123.0 59 77.0 4 1800 18 229.1 32 173.8 46 118.8 60 74.4 5 1750 19 225.7 33 171.3 47 114.8 61 71.9 6 1500 20 218.1 34 167.9 48 110.9 62 69.3 7 1300 21 210.7 35 165.5 49 107.2 63 67.0 8 1200 22 206.5 36 162.2 50 103.5 9 1100 23 203.5 37 159.8 51 100.0 10 1000 24 199.5 38 156.7 52 97.4 11 900 25 196.6 39 151.4 53 94.8 12 800 26 192.8 40 146.2 54 91.5 13 150 27 189.9 41 141.3 55 88.5 BOM List: Item Quantity Note IC 1 DIP 16 78L05 1 TO-92 OLED 1 0.91" OLED Module Diode 2 1N4148 7.5K Resistor 2 1/8W VR 10K 1 Crystal 32MHz 1 100uF 1 10uF or 47uF 20pF 2 22pF 0.1uF 3 104 PIN Header 1 PCB 1 35 x 35 mm. The product needs to be assembled and soldered by yourself.

Price: 38 USD

Location: 台北市

End Time: 2024-02-02T06:51:48.000Z

Shipping Cost: 10 USD