Norfolk Repeater Group Covering GB3NB, GB3AH, GB7NB and GB3NV AGM on the 27th May 2015 starting at 20:00 meeting held at the Norfolk Amateur Radio Club. Regards, Mark (G0LGJ) [more]
The Largest Repeater Group in Scotland the CSFMG will be holding their AGM on the 7th June at the Crofthead Farm Community Education Centre, Templar Rise, Livingston, EH54 6DG. The meeting will take place after the Ham Convention.
EASTBOURNE RALLY GB6SRF
With only a month to go until the launch of the Eastbourne Rally, the Sussex Electronics and Radio Fair is really building momentum and interest from a wide area. The special event station will be GB6SRF and QSL cards will be provided to anyone who contacts the stations (HF, VHF, UHF and hopefully DATV too) To be held on Sat 6th June and located at a great location, the Eastbourne Sports Park. FREE stands are still available to any Clubs, Societies, Groups and Educational plus Trade and Personal stands/spaces are available. If you’re interested in participating, please book now! [more]
Time-Division Multiple-Access (TDMA) preserves full channel width and divides it into alternating time slots that can each carry an individual call.
Motorola maintains that two-slot 12.5 kHz TDMA-based systems (providing 6.25 kHz equivalency) is more efficient.
This means that two separate conversations can be handled by the one repeater, on the same frequency but on a different "channel".
TDMA technology for narrowband 12.5 KHz (6.25 equivalent-6.25e) provides advantages of: