Description: The product needs to be assembled and soldered by yourself. This circuit incorporates two 600-ohm audio transformers (T1 & T2) and an RS232 powered optocoupler IC. The purpose of the transformers and an optocoupler is to isolate the transceiver from the computer, keeping the interference from the PC to a minimum. Ensure that the screening on the radio and the screening on the PC are not connected together.Stereo 3.5 mm plugs connect the line in and out on the computer soundcard. Use the tip and earth only as in this application the sleeve is not used.To control the radio PTT, an isolated signal from the computers RS232 (RTS) line is used. If you have an available DB9 connector on your computer, use RTS (Pin 7) and ground (Pin 5). If you have a DB25 connector on your computer, use RTS (Pin 4) and ground (pin 7). This single board, isolated, digital interface that works for almost all of the digital modes on HF and VHF/UHF. Works with DIGIPAN, FLDIGI, MTTY, MMSSTV and most all other sound card programs! Work PSK-31, PSK-63, RTTY, SSTV, NBEMS, plus many other modes on your HF or VHF/UHF rig. Please note that the RTTY mode is RTTY(AFSK) as produced by MTTY software. BOM List: Item Quantity Note Audio transformers 2 600:600 IC 1 4N25 optocoupler Diode 2 1N4148 Diode 1 1N4004 2.2K ohm 2 Resistor 1K ohm 1 Resistor 0.1uF 2 capacitor PCB 1 49 x 43 mm. The buyer needs the basic electronic knowledge and ability of assembling and soldering.
Price: 17.9 USD
Location: 台北市
End Time: 2025-01-10T07:46:41.000Z
Shipping Cost: 12 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Brand: Unbranded
Compatible Brand: Universal
Type: Connector
