The Yaesu SCU-17 USB Interface Unit is an essential accessory for amateur radio enthusiasts seeking seamless integration between their transceivers and personal computers. Designed to facilitate CAT (Computer-Aided Transceiver) control and support various digital modes, the SCU-17 offers a comprehensive solution for modern radio communication needs.

Key Features:

• Integrated USB Connectivity: The SCU-17 enables CAT communication through a USB interface, eliminating the need for traditional RS-232C connections. This is particularly advantageous for PCs lacking serial ports, ensuring broad compatibility across modern computer systems.
  
  

• Built-in USB Audio Device: Equipped with an internal USB audio system, the SCU-17 allows both transmit (TX) and receive (RX) audio signals to be processed directly via the USB connection. This design simplifies setup by reducing the number of required cables and streamlines operations for modes such as SSTV, RTTY, and PSK.
  
  

• Dual-channel USB Serial Functionality: The interface supports two simultaneous COM ports, enabling concurrent CAT control and digital audio streaming. This dual-channel capability ensures high isolation and minimizes interference, providing a reliable environment for digital mode operations.
  
  

• USB Bus-powered Operation: The SCU-17 draws power directly from the USB connection, eliminating the need for an external power supply. This feature enhances portability and reduces cable clutter in your operating setup.
  
  

• Enhanced RF Isolation: To mitigate potential radio frequency interference, the unit incorporates photo relays for PTT (Push-To-Talk) and FSK (Frequency Shift Keying) terminals, along with audio transformers in the AUDIO IN/OUT lines. This design ensures excellent ground isolation, maintaining signal integrity during operations.
  
  

• User-friendly Controls and Indicators: Front-panel knobs allow precise adjustment of TX and RX audio levels, facilitating optimal signal quality. Additionally, LED indicators provide real-time monitoring of PTT and FSK statuses, offering immediate visual feedback on operational conditions.
  
  

Technical Specifications:

• Supply Voltage: DC 5.0 V ±5% (via USB)
  

• Current Consumption: Approximately 130 mA
  

• Data Jack Specifications:
  

• PTT Output: Maximum +25 V, 50 mA (open collector)

• FSK Output: Maximum +25 V, 50 mA (open collector)

• DATA-IN: 100 mVrms @ 10 kΩ

• DATA-OUT: 100 mVrms @ 600 Ω

• FSK/PTT Jack Specifications:
  

• PTT Output: Maximum +30 V, 250 mA (open drain)

• FSK Output: Maximum +30 V, 250 mA (open drain)

• Audio Jack Specifications:
  

• AUDIO-IN: 100 mVrms @ 600 Ω

• AUDIO-OUT: 100 mVrms @ 600 Ω

• CAT/RS-232C Jack: Conforms to RS-232C voltage levels
  

• USB Connector: Compatible with USB 1.1 and USB 2.0 standards
  

• Dimensions (W x H x D): 4.37" x 1.0" x 2.91" (111 x 25.4 x 74.0 mm)
  

• Weight: Approximately 8.1 oz (230 g)
  
  

Compatibility:

The SCU-17 is compatible with a range of Yaesu transceivers, including:

• FTDX-9000

• FTDX-5000

• FTDX-1200

• FT-2000

• FT-950

• FT-897

• FT-857

• FT-817/818

• FT-450D

• FT-891

Please note that some transceivers may require optional cables for complete functionality. For instance, the FT-8xx series necessitates the CT-62 cable to support rig control, as these models lack traditional serial ports. Always refer to the specific transceiver's manual or the SCU-17 instruction manual for detailed interconnection requirements.

Included Accessories:

• USB Cable (Type A to Type B)

• RS-232C Cable (Female to Female, Straight Type)

• Connection Cable (MDIN6P to MDIN6P)

• Two 3.5 mm Stereo Plugs

These accessories facilitate straightforward connections between the SCU-17 and compatible Yaesu transceivers, ensuring a hassle-free setup process.

Elevate your amateur radio experience with the Yaesu SCU-17 USB Interface Unit, and enjoy seamless digital mode operations and robust CAT control. Purchase yours today from RFCharge to ensure authentic quality and exceptional customer service.

Note: For additional information, look at the files under the "Documentation" tab.