Descrizione

Vendo scheda generatore di subtoni CTCSS completa di display con le seguenti caratteristiche: 1. Programmable crystal controlled CTCSS tone encoder kit 2. It can encode the 47 CTCSS tones listed below and generates a sign wave. 3. Output level is fairly flat from 67 to 118Hz at approx. 3V p-p and then falls gradually to approx. 1V p-p at 254Hz, most radio’s require less CTCSS input level at higher frequencies so this is ideal.(10K VR adjust output level range) 4. Two Keypads to Selected 47 CTCSS tones . 5. Keep 47 CTCSS tones setting parameter in PIC16 internal EEPROM, don't worry about power off. Display CTCSS tones by 4 digit LED display 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. 47 CTCSS tones Frequency Accuracy: Guarantee ±0.01%. 8. It's powered by 7 to 16V DC and draws less them 15 mA. PCB size is 55 x 57mm. Note: 47 CTCSS tones listed OFF, 183.5 Hz, 110.9 Hz, 254.1 Hz, 179.9 Hz, 107.2 Hz, 250.3 Hz, 173.8 Hz, 103.5 Hz, 241.8 Hz, 167.9 Hz, 100.0 Hz, 233.6 Hz, 162.2 Hz, 97.4 Hz, 229.1 Hz, 159.8 Hz, 94.8 Hz, 225.7 Hz, 156.7 Hz, 91.5 Hz, 218.1 Hz, 151.4 Hz, 88.5 Hz, 210.7 Hz, 146.2 Hz, 85.4 Hz, 206.5 Hz, 141.3 Hz, 82.5 Hz, 203.5 Hz, 136.5 Hz, 79.7 Hz, 199.5 Hz, 131.8 Hz, 77.0 Hz, 196.6 Hz, 127.3 Hz, 74.4 Hz, 192.8 Hz, 123.0 Hz, 71.9 Hz, 189.9 Hz, 118.8 Hz, 69.3 Hz, 186.2 Hz, 114.8 Hz, 67.0 Hz,

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