Soundcard Interfaces

A sound card interface is used for digital operating modes such as RTTY, PSK-31 and FT-8. The need for such a device results from the different or completely missing grounding of the computer and the radio. This results in potential differences which lead to equalizing currents and these in turn lead to a clearly audible hum on the modulation. A sound card interface breaks the galvanic connection between the computer and the radio and thus prevents equalizing currents and hum.


The sound card interface connects the AF inputs and outputs from the radio to the computer, offers PTT control and usually also a CAT interface (Computer Aided Tuning). The connection to the computer is usually always done via USB. More modern sound card interfaces have their own USB sound card integrated, otherwise the sound card built into the PC is used. An own sound card has many advantages, for example, because settings can be made separately for amateur radio applications. Ideally, the manufacturer of the interface should also offer suitable cables for as many different radios as possible. So you don't have to solder cables yourself. Properly configured, a universal sound card interface works with any software that uses the standard interfaces of a computer.

 

Items 31-40 of 45

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  1. MFJ-5745J Cable for RigPi, RJ-45 plug (mic socket)
    MFJ-5745J Cable for RigPi, RJ-45 plug (mic socket)

    Adapter cable for MFJ-1234 RigPi, RJ-45 to RJ-45, radios with RJ-45 mic socket.

    In stock, shipped in 1 to 2 days

    €41.00
    incl. VAT, plus shipping €34.45
    SKU MFJ-5745J
  2. MFJ-5708D Audio cable
    MFJ-5708D Audio cable

    For 8-Pin DIN Data / Accessory Port Connector, for use with MFj-1204D8 Interface

    In stock, shipped in 1 to 2 days

    €41.00
    incl. VAT, plus shipping €34.45
    SKU MFJ-5708D
  3. MFJ-5700K cable for RigPi, various handheld radios (Kenwood, Baofeng etc.)
    MFJ-5700K cable for RigPi, various handheld radios (Kenwood, Baofeng etc.)

    Connection cable for RigPi, various handheld radios from Kenwood, Baofeng and many more.

    In stock, shipped in 1 to 2 days

    €41.00
    incl. VAT, plus shipping €34.45
    SKU MFJ-5700K
  4. MFJ-5713DI Audio cable
    MFJ-5713DI Audio cable

    For Icom 13-Pin DIN Accessory Port Connector

    In stock, shipped in 1 to 2 days

    €41.00
    incl. VAT, plus shipping €34.45
    SKU MFJ-5713DI
  5. MFJ-5711J Audio cable
    MFJ-5711J Audio cable

    For RJ-11 microphone connector For use with MFJ-1204J11, USB to rig

    In stock, shipped in 1 to 2 days

    €41.00
    incl. VAT, plus shipping €34.45
    SKU MFJ-5711J
  6. MFJ-5706MD Audio cable
    MFJ-5706MD Audio cable

    For 6-pin mini DIN connector for data/accessories, for use with MFJ-1204MD interface

    In stock, shipped in 1 to 2 days

    €41.00
    incl. VAT, plus shipping €34.45
    SKU MFJ-5706MD
  7. MFJ-5704P Audio cable
    MFJ-5704P Audio cable

    For 4-Pin Round Mic Connector, for use with MFJ-1204P4 interface

    In stock, shipped in 1 to 2 days

    €45.00
    incl. VAT, plus shipping €37.82
    SKU MFJ-5704P
  8. MFJ-5700R Audio cable
    MFJ-5700R Audio cable

    For various Yaesu HTs including the FT-60R, VX-8GR, for use with the MFJ-1204R

    In stock, shipped in 1 to 2 days

    €41.00
    incl. VAT, plus shipping €34.45
    SKU MFJ-5700R
  9. MFJ-5700K3 Audio cable
    MFJ-5700K3 Audio cable

    For Elecraft K3`s rear panel Audio In/Out & PTT jacksFor use with MFJ-1204K3.

    In stock, shipped in 1 to 2 days

    €41.00
    incl. VAT, plus shipping €34.45
    SKU MFJ-5700K3

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FAQ

What is a sound card interface for amateur radio?
A sound card interface for amateur radio is a device that allows a computer to be connected to a radio transceiver, enabling the transmission and reception of digital modulation methods such as PSK31, RTTY, and SSTV.
Why is a sound card interface needed?
A sound card interface is required to transmit and receive digital radio modulation methods such as PSK31, RTTY, and SSTV with a computer. This is especially important for amateur radio enthusiasts interested in digital radio modulation methods.
What requirements must be met to use a sound card interface?
In order to use a sound card interface, a computer must have a sound card that is compatible with the radio transceiver. Additionally, the proper drivers and functional software must be installed to allow for the transmission and reception of digital radio modulation methods.