Our former space at 447 Hackney Road is now closed. Social activities and group meetings are planned at alternate locations. Please refer to the mailing list for more information.

During this interim period donations and continued membership are greatly appreciated while we transition to a new space.

Project:APRS iGate

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M0HSL APRS iGate/Digipeater

Because APRS coverage sucks in London, and this is a project which is nice and easy to kick off, but has lots of scope for doing ALL THE THINGS.

Current status: Offline (ras-pi is back at Mat's place pending hackspace move, and needs plugging back in) (M0HSL-10 on aprs.fi)

Short term proposal: An Rx only igate based on a raspberry pi and an RTL-SDR, on loan from MatStace 2E0TPS until such time as it's no longer needed. Contact Mat if you need access to it for any reason.

Longer term things:

  • Two way iGate and digipeater
  • Weather/telemetry in the packets.
  • Frequency (if there is someone operating the station)


  • Add a short USB extension between Pi and RTL-SDR to remove mechanical stress
  • Possibly add a short N-type -> SMA pigtail between antenna cable and rtl-sdr instead of solid adapter (shouldn't need it if above is done)
  • See if RF filtering before rtl-sdr is necessary/beneficial - maybe broadcast FM band stop, or a VHF bandpass