Welcome to CDARC! We're a friendly radio club based in Cambridge and the surrounding area. We have weekly nets, meetings twice per month, training courses, field days and social events (particularly over the summer months). Radio is a broad hobby and club members have different special interests - from contesting to morse or digital modes. We welcome absolute beginners as well as experienced hams. If you're new, drop us a line at committee@cdarc.org.uk and we can suggest things that might be of interest.

Next Meeting

14 June 20:00: Hamclock on pi, M0IPO

Click here to join the Zoom meeting


For in-person meetings doors to Coleridge open at 19:30 (see About page for details).

Please note that Zoom meetings are recorded for those who cannot attend. If you do not wish your image to be included in the recording, please switch off your video feed. The recording will be available for 14 days after the presentation and may be obtained from: publicity@cdarc.org.uk

Notices & Events

Meeting Info

Friday meetings occur twice per month with presentations starting at 20:00. They will usually take one of 3 forms (see meeting details for which of these it will be):

  • Zoom only Meeting
  • Zoom meeting with social in-person gathering at Coleridge (where those gathered will watch the presentation via Zoom)
  • In-person meeting with live presentation at Coleridge (generally with a Zoom broadcast)

  • Club Call-signs

    The Club call-signs G2XV and G8EVY are available for use by members - please contact secretary@cdarc.org.uk for a quick discussion on the details (e.g. date the callsigns will be used).

    Note: When using club callsigns licensees must stick to the conditions of their own personal licenses (i.e. Foundation and Intermediate licensees must remain within the appropriate power limits).


    Nets commonly run on Sunday mornings and Wednesday evenings. Examples of timings, frequencies and modes (please note these may contain inaccuracies - though we will try to correct these when found)

    Tue 16 Apr

    17:00 840MHz DMR


    Wed 17 Apr

    20:00 145.55MHz FM


    Sun 21 Apr

    08:30 144.18MHz USB


    10:30 3.655MHz LSB


    Tue 23 Apr

    17:00 840MHz DMR


    Beginner's Morse Thursdays

  • 7.30pm - ONLINE training session. Relaxed event with advice and receiving practice aimed at absolute beginners up to proficiency of 10 words per minute. Usual Friday Zoom link

  • 8.30pm - On Air Net 40m (Starting at 7.030 MHz, moving upwards if frequency occupied). CW version of usual club net. Supportive environment for beginners to take first steps on air and conversational practice for those up to proficiency of 15 words per minute. Further details about how net will be run can be obtained from events@cdarc.org.uk

  • Mills on the Air Sat 11th May

    Great Chishill Windmill, 57-67 Barley Rd, Royston SG8 8SD - from 9am. As with all CDARC events, this will be a relaxed and sociable occasion, and beginners are especially welcome. We expect to be active as G2XV on 20m, 40m and 2m.