The SCU-17 provides CAT communications through a USB Terminal and Audio Input and Output through a USB Sound Card. 

One Serial port is used for CAT control for any Yaesu radio not having a built in USB connection. The second serial port is used for FSK keying in RTTY and PTT using the DTR and RTS signals via the Data Connector on the back of the radio. Non Yaesu Radios can be interfaced to the SCU-17 using the 2 x 3.5mm jack sockets for Audio In/Out and FSK/PTT.

The SCU-17 is equipped with a USB audio system device, so the TX and RX audio system signals are accessible to the SCU-17 through the USB cable. Therefore, the supplied USB cable is the only connection needed between the SCU-17 and PC. 

The SCU-17 operates from the USB bus power, no external Power supply is required.

For RF isolation, the SCU-17 is designed with photo relays for the PTT/FSK terminals. AF transformers are used in the AUDIO IN/OUT lines to provide excellent ground isolation. 

The SCU-17 is equipped with the TX and RX audio controls on the front panel, for convenient level adjustment. 

LED indicators on the SCU-17 front panel monitor the PTT and FSK control. The operating conditions may be quickly confirmed.

Package includes:

  • SCU-17
  • USB cable
  • Data Port Cable Type A
  • RS232C Cable ( Female to Female - Straight through type)
  • Data Connection cable (MiniDIN6P to MiniDin6P)
  • 2 x 3.5mm Stereo Jack Plugs.
  • Installation Manual
    • Specifications SCU-17 
    Supply Voltage DC 5.0V +/- 5% Negative ground
    Current Consumption   130mA
    Data Jack: PTT: Maximum Output +25V, 50mA (Open Collector)
     FSK: Maximum output +25V, 50mA (Open Collector)
     DATA-IN: 100mV rms @ 10K ohms
     DATA-OUT: 100mV rmd @ 600 ohms
    FSK/PTT Jack:PTT: Maximum Output +30V, 250mA (Open Drain)
     FSK: Maximum Output +30V, 250mA (Open drain)
    Audio Jack:AUDIO-IN    100mV rms @ 600 ohms
     AUDIO-OUT 100mV rms @ 600 ohms
    CAT/RS232C Jack:RS-232C Voltage Levels
    USB Connector:USB 1.1 or USB 2.0 USB Bus power
    Case Size:4.37" (W) x 1.0" (H) x 2.91" (D) ( 111 x 25.4 x 74.0 mm)
    Weight:8.1oz (230g)