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GB3BK.

GB3BK started in September 2006 when 2 enthusiasts G0TOD (Todd) and M1DMN (Bob) were looking to get a new 23cm voice repeater to go on air in or around London/Kent boarders, they finally ended up banging on my front door asking if I was interested in housing the repeater at my home QTH, they didn't have to ask me twice I jumped at the chance to help and to give my support in any way I can. When the first application was applied for there were some mixed feelings the biggest being would it get approved or rejected by the CAA (Civil aviation authority), well it did get rejected by the CAA so we started to look at other possibilities maybe a 3 meg split repeater but this didn't seem feasible the question was would the cavities tune with the odd split there was some doubt, we then looked at maybe a parrot box as the last resort. Not wanting to be defeated or give up it was then someone suggested we apply again this time for another frequency but further up the band, it took just over a year to get the application though once it was approved, our thanks go to Dave G7UZN who tuned the repeater with the new crystal, retuning the cavities to the new frequency and installing the logic, TX is around 6 to 8 Watts in to a Diamond X-5000 Tri-Bander Aerial for 2/70/23, GB3BK finally come on air on Sunday the 6th January 2008, With only a few 23cm repeaters doted around the UK, GB3BK is the first 23cm Voice repeater to be found in London and within the M25 Motorway.

This is the new GB3BK, BK is made up using 2 Vhf GM340s mobile radios and a mini-kit transverter, housed in the Motorola XPR8300 Case. Mini-Kits Visit site
   
  This is the old GB3BK an ICOM IC-RP-1210 which is in need of repair, Rx is Ok but the fault is low output as these are as rare as hens teeth it seems ashame not to have it fixed, so if anyone can help please email me.
   
Bird Technologies manufacturers a comprehensive line of duplexers with the critical specifications you require to operate a high performance system. Visit Site
   
The Repeater controller supplied by John VK5DJ this is a 2 port linking controller design for amateur or professional use - usually a duplex repeater on port 1 and a simplex link or gateway on port 2. This is used to link GB3BK to the other simplex links that are connected to Echolink. Visit site
   
This is a prediction of the coverage map for GB3BK.

Repeater Summary Details for GB3BK Click Here