The Bristol 70cms Repeater Group
Click to enlarge image.
When looking for a new home, we went to the effort of showing a site what an antenna would look like - BEFORE.
The riggers donated 40m of LDF 5/50
While waiting for a rigging appointment, this was our temp' antenna, boy did that pi** some members off due to reduced signal coverage.
Jan 2010 saw snow
This was boxing day 2010, equipment failure
The now defunct Dalman SatSync GPS receiver antenna.
Ever wondered why you do not hear squelch tails? This is the Audio delay board that delays audio slightly, so when you drop carrier, the logic drops the PTT before the delayed audio gets to the transmitter.
The Rest platform at roughly half way up the tower. The home of our old 2.4GHz panel and its upgraded 5GHz dish.
Commercial rigging kit ready to be used to fit the 5GHz dish to the tower.
And after it was fitted. This site was on our short list.
Taking 5 before climbing back up the tower with the new antenna.
Temp Antenna in all its glory
Due to its hight above sea level. the site gets a good covering when it snows.
Going to site Jan 2010 was particularly tricky
Testing the old (un-used) 2.4GHz link. The panel is on the top of the portable mast (Forground) and its pointing at Mats QTH.
The old (and no longer used) 2.4GHz panel at Mats QTH.
Just occasionally we have to be creative to fix a hardware fault until a more permanent solution is implemented.
Our Frome Rally show stand. 2015(ish)
This is where it all began. The MK I. GPS Clock. As smple as it could get. and yes it again P*ssed some members off as it only provided GMT.
Another hardware re-design which lead to the MK III. GPS clock, Now supporting DLS and leap-years. But still had those pesky dip-switches to set the timezones etc.
Another total hardware redesign saw the end of the dip-switches. and a Code re-write saw the introduction of soft menus. The Mk IV. clock was born with full time Zone support. Up/Down and Enter buttons allow menu navigation on the fly.
Generator Run alarm. The original solution was installed in the early 80's. The small PCB with the green connectors is our design and detects the generator is running and signals the RC210. It also provides a 3 minute (ish) run-down timer, that if the generator runs down and then remains off (after grid power is restored) unit signals the RC210 that the power failure alarm has cleared.
Proof we painted the floor before re-installing the cabinet.
Our Generator load testing socket.
The plush new main enterence at Cossham Hospital.
Complete with Video display.
Re-designed hardware and totally re-writen code. The MK II. could support some timezones and Daylight Saving (DLS). - some still moaned as the RC210 uses an American accent, no supprise really as it is an American repeater controller.
The MK III. Also sported a custom laser (With a Z if American) cut case and a funky Red on Black display.
The MK IV clock has been sold around the world - This clock is a little closer to home at a UK repeater site, being tested at the Keepers home before deployment.
This MK IV Clock is part of a Civil defense "port-a-peater" solution and has been intergrated into a portable Repeater.
by an American Repeater group. One of Many
Inside a Tait receiver just after it was fitted with a new programming eprom tuned to GB3BS input frequency.
Our "Calibrated" 3kW generator test load.
Well would you? A little bit of fun to try and make people thing that not every DMR microphone works with EVERY DMR radio.