ModMic 4.0 Attachable Boom Microphone

(1 customer review)


ModMic Attachable Boom Microphone. A High quality electret microphone on a boom that attaches to any headphones to create your perfect headset.

In stock


ModMic is the perfect solution for DXing and contesting. Attach it you your favourite noise cancelling headphones and you have the perfect ham radio headset with a high quality communications microphone. Its characteristics makes it pick up more of you and less of the room by attenuating the background noise from amplifier fans, street noise, other operators etc.

The ModMic works with any radio supporting an electret microphone by supplying a bias voltage on the microphone connector. It connects directly to the SunSDR2 PRO, SunSDR2 QRP and MB1. It also connects directly to the Elecraft K3 and other transceivers with a 3.5 mm stereo tele jack. And it work with most other popular transceivers using one of several available adapters, pick one for your transceiver here before checking out your ModMic order.

See our application note describing how to set your EQ for the SunSDR2 PRO, SunSDR2 QRP and MB1 to get that crisp and punch when busting pileups.

ModMic contents

  • One ModMic
  • Two base clasps, one top clasp with cap
  • One extra 3M pad for re-attachment of base clasp.
  • One foam pop filter
  • Alcohol wipe
  • 5 cable clips (not in picture)
  • Instructions
  • Carrying case

ModMic specs

  • Jack: 3.5mm plated TRS for use with SunSDR2, SunSDR MB1 and PCs. Also workes with Elecraft K3 and other radios.
  • Cable: 3.3 meters length, 2.5 mm diameter, coaxial shielding.
  • Boom: 175mm max length, very bendable with internal steel spine.
  • Clasp: 12.7mm (0.5 inch) diameter circle adhesive pad footprint, ~17.5mm total height of attached clasp assembly.

ModMic Microphone capsule specs

  • Pattern: Uni-directional
  • Sensitivity: -38 ± 3 dB
  • Response: 100 Hz–10 kHz
  • SNR: >50+ dB
  • Impedance: 2.2 KΩ
  • Operating Voltage: 1 to 10V
  • Max current at 2.0V: 500 µA
  • Max input SPL: 110 dB

Tip: Want to make your own adapter? Follow this link to G4WPW’s collection of microphone connections for most radios on the market.

1 review for ModMic 4.0 Attachable Boom Microphone

  1. RM2D Mats

    I am often traveling with my Ham Radio gear to various locations (business and leisure).

    Although I have been a loyal Heil customer for many years, I at once agreed to test the new ModMic Boom Microphone when Bjorn showed it to me some time ago.

    When finally getting a chance this weekend to try the mike out together with my TS 590S, I must admit I am impressed!

    Without asking any stations for a sound check, several stations spontaneously commented on the nice DX/Contest Audio.

    I did not even play around much with the TX-equalizer of my 590S, but at least managed to test the predefined positions. My voice in combination with ModMic suited the HB2 setting best. I will play a little more with the settings in the ARCP-590 program, but even without this fine-tuning, I can say this was one of my best buys ever.

    The reason is that I no longer have to bring extra headphones for my radio. I can use my Bose Noise-cancelling headphones and then just apply the small magnet with the self-adhesive sticker, place the microphone in the protective box and be sure that no damage will occur when traveling. This in addition to the fact that my Bose headphones are pretty much nicer to wear for 48 hours compared to a heavy Heil headset, makes me think I have beaten two flies (at least) with the same whip.

    Good stuff guys and I truly can recommend this product both for the fixed DX/Contest operator and for the weight concerned DX-expeditioner/

    73 de Mats RM2D (SM6LRR)

    PS I broke the pileup for E6GG on two bands with this nice audio, but actually with a small pistol signal using a Hex Beam at 6 meters and a kW. Somehow, the pitch of the mike helped me out and I got them om first call on 17 meters, and second call on 15!

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