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Require PIC Firmware - 13cms G1MFG TV Modules
Posted: Thu May 15, 2014 12:42 pm
by G6YBC
Hi All
Understand there is PIC Firmware to alter the Frequency setting of the 13 cms G1MFG TV transmitter modules.
Wish to connect to a X 4 multiplier so to enable operation on 10.xx GHz TV
Thank you for any possible help
Dennis G6YBC
Re: Require PIC Firmware - 13cms G1MFG TV Modules
Posted: Fri May 16, 2014 7:31 am
by ON1AVO
Dennis,
Have a look at
http://www.lechner-cctv.de/frequenzdisp ... 7eraasv3h0
It is in German but a full description of the PCB and Hex files.
73's
Freddy
Re: Require PIC Firmware - 13cms G1MFG TV Modules
Posted: Fri May 16, 2014 7:46 am
by g8gtz
Hi Dennis
Peter, G3PYB, has the code and sells the programmed PICs on behalf of GB3IV. I'll copy this post to him.
Noel
Re: Require PIC Firmware - 13cms G1MFG TV Modules
Posted: Fri May 16, 2014 11:11 am
by g8gtz
Hi Dennis
Drop Peter an email - "g3pyb at btinternet.com" - he has the hex or can supply you a PIC.
Noel
Re: Require PIC Firmware - 13cms G1MFG TV Modules
Posted: Wed Jun 11, 2014 10:24 am
by g3rfl
Hello Dennis
Names John G3RFL up in CLEVELEYS years ago I programmed a PIC to do exactly what you want to do and from memory came across a problem the varicap volts needed to be made higher so that the VCO tuning caps go to a minimum value I do have a multiplier I never use now and a tunable MFG TX I never use now fully tunable freq wise with readout I now use YIGs direct on line tunable with a constasnt current...So if you get stuck...g3rfl@talktalk.net TTFN P5 GB3FY