December 2015 Newsletter (click here)

Weekly NET on GB7TC

Tim M6XTB is trying to get a weekly NET running on GB7TC on a Tuesday between 20:00 - 22:00 & again on Thursday between 20:00 - 21:00.

If you have a DMR radio please try and call in, the NET will be on GB7TC Slot 2 TG9

We hope that other non DMR repeaters will also have a NET running over the coming months.

October 2015 Newsletter

Another great publication from Neil M6CUE - The October 2015 RRG Newsletter is now available

GB7TC Operational

Great News!!  - 17th October 2015

GB7TC the new Swindon DMR repeater was switched on today.

The repeater is co-sited with GB3TD and uses the same single aerial system. Please pass any reports to the repeater group.

Currently the system is under test and will be local working only for the next few weeks.

Many thanks to all of the hard work from the group members in making this possible.

GB3WH Update

We are aware that GB3WH is currently off-air. At this moment in time it is not clear why this is until we get on-site. We hope to investigate the situation later today.

We hope normal service will resume shortly.

Andy G0UWS

Service Update - 24/09/15

WH was restored on 24/9/15 @ 18:20 but on limited Power, as such a "K" has been replaced with a Double "P".

We hope to fully restore service soon.

Andy G0UWS

GB7TC Swindon's new DMR repeater coming soon to a site near you!

Fantastic news N.o.V approved!!!

Following the meeting of the DMR Engineering Working Group on 9th September we received news that the NoV submitted by Nigel G8VRI last month was approved by RA on 10th September. The new repeater will be co-located with GB3TD, our existing UHF analogue repeater.


We are now in negotiations for the supply and commissioning of a Motorola SLR5500 MotoTRBO DMR base station which will eventually become part of the South West Cluster on Timeslot 2, with Timeslot 1 being reserved for local traffic and other services.

Please watch this space for more updates

73s all

Andy G6REG

MB7UR is now back onsite and operational

Latest news from Andy G0UWS

MB7UR is now back onsite and operational as of midday today (31/8/15). Rob XUT & myself went up today to return the unit.

I now have the original co-linear and will be seeing Den M0ACM in the next few days to see if he can help us to make a repair to the metal work before also returning this to site and commissioning.

The next step will be to arrange to get to site the pole from G0BEQ to make the aerial higher.

Update on the NoV for GB7TC from Nigel G8VRI

GB7TC NoV Update

 

For those interested the DMR mode is 7K60F7WWT (7k60 = bandwidth, F = Frequency Modulation, 7 = More than one channel containing digital information, W = type of information - mixed, W = Details of information transmitted – mixed, T = Time Division Multiplexing)

 

And the frequencies the RSGB ETCC regional rep has allocated are:

 

DVU42: Tx = 439.5250, Rx = 430.5250

 

It is now off with the “powers that be”

Breaking News!!!!!

The Group's Committee met last night & a decision was reached concerning a DMR repeater, at the moment Nigel G8VRI has volunteered to apply for the NoV & this is now underway,  hopefully the application will go through without opposition. The callsign for the new repeater will be either GB7TC (1st choice) or GB7QJ (2nd choice). Onsite evaluation tests, purchase of equipment, etc. to come, more updates later as stages are completed.

August 2015 Newsletter

Click August 2015 Newsletter for the new newsletter

The future Your chance to comment...

GB3TD - Wide-split, Dual-mode analogue / digital - what next?

The repeater group have been wrestling with a number of problems and potential enhancements with GB3TD over the past few years.

We have a first class site but do suffer some local (off-site) interference caused by an as yet unidentified digital pulse transmission at certain times of the day.

We are also a key UHF repeater on the M4 corridor and much further afield.

Our two neighboring repeater groups in  Bristol and Reading are opting for Dual-mode DMR based on the professional TDMA standard (Mototrbo) but still retaining a conventional analogue option. TDMA DMR would offer us two digital frequencies running simultaneously (well almost! - different time-slots), with one possibly used for local working and the second for interlinking to other repeaters or/and Echolink.

We are also considering moving to wide-split (7.6MHz) operation which would increase the receive coverage reducing current combining losses (swapping cavities for a diplexer) and move our output frequency away from the current localised digital interference. We may also have the option of unattended Echolink similar to some wide-split UHF repeaters. 

We would welcome any comments from users or interested parties as to their thoughts on both options or any experiences you may have.

Many thanks

73's

Andy G6REG