The new microHAM USB Interface II interface includes full optical isolation of all control signals (radio control, CW,  PTT and Squelch) and high quality audio isolation transformers with level trimmers (screwdriver adjust) to permit connecting a computer sound card to your radio's rear panel audio input and constant level audio output for use with digital mode software or echolink.

  • No COM or LPT port necessary, just one USB port and sound card
  • Complete "Computer <-> Radio" electrical isolation
    - bidirectional transformer isolation of sound card and rig

    - optical isolation of ALL
    digital signals -> Radio Control, CW, 2xPTT, FSK, PA from USB port
  • Integrated computer control port for all radios CI-V, FIF-232, IF-232, RS-232
    - fully supported Icom, Kenwood, Ten Tec, Yaesu and other radios

    - no separate level converter required
    - based on FTDI chip
  • Squelch input for signaling to computer
    - two inputs, on is activated when is closed to ground, second when senses 5-8V power
  • No external power adapter
    - Computer part is powered from USB
    - Radio part is powered from transceiver or transceiver power supply
  • Strong RFI immunity
    - integrated chokes and filters for best RFI immunity
    - advanced shielding and circuit design for RFI product suppression
  • Quick change connectors
    - USB, Sound Card - 2 x 3.5mm (1/8")
    - Radio - DB15
  • LEDs for easy visual feedback of CAT, CW, PTT, SQL
  • Metal/Aluminum case, powder coated and silk screened
  • Free, time unlimited firmware/software upgrades via Internet