............................. I am back to using black plastic sticky tape (a reel of this stays cold in the microwave oven - though the cardboard former gets warm). I used to use plastic sticky tap
Larry and others: We recovered all the spares for the Decca tx we could from Racal and have stored them courtesy the Crawley Club. If anyone wants something let either Derek G3GRO or me know and we'l
My now-retired Decca engineer pal who had a lot to do with setting up coil huts and tuning coils, Nigel Fenner, tells me that he occasionally ran Decca transmitters without the copper lining in woode
Gamal says it all. It was impossible to keep the Decca coils tuned accurately and maintain phase constancy without the copper screening. Even then there had to be an automatic re-tuning device for wh
In the early 1970's I was engaged in experiments using GBR and various US Navy LF transmitters around the world as a radionavigational system. They were phase-stable and they worked quite well but Tr
................................. if they can list a WW II radar mast then this is even more historical....................... Sorry this is off-subject, but which radar mast is that please? Walter G
Mal, Since you're the fount of all knowledge on what constitutes a proper LF QSO why don't you offer an award of your own? Transatlantic has been pre-empted so it would have to be for the BIG one - E
...............I propose to use GPS ..........: The only real requirement is a GPS receiver with a 1-PPS output good to within a few microseconds of UTC. Be careful - don't confuse relative with abs
Markus et al, There is a data transmission superimposed on Sylt (and now on the other EU Loran tx). which may explain your unknown lines. This extract from a paper given by TU Delft at the US PLANS 9
Although off-subject there seems to be a lot of interest in the EF50. Attached is a text-only version of a recent article written by Keith Thrower, an ex-Director of Racal and an electronics historia
Apart from congratulating all concerned, I hope you meant the FCC. The Federal Aviation Authority might take a very long time dealing with a ham radio matter!! Walter G3JKV
In the 1960's I had an active aerial using an 807 as the front-end - with 600v on it too! Later modified to use an E186F instead. Why are they using double triode E88CC? Can't possibly have the slope
At 19:26 03/03/01 Saturday, G3KEV wrote: There seems to be so many mistakes in the latest COMIC. Who did the proof reading before publication? Can I get a hardback of the corrections? There is no exc
I wrote up last years' Puckeridge tests for Radcom thinking it would be published shortly afterwards but for some reason it never was. It has now re-surfaced and is proposed for publication in the Ju
Would somebody like to come up with a "standard" letter that we could use? Agree with Laurie - strongly recommend we do NOT use a standard letter. Hundreds of identical letters from members of a sin
Have put out a request for info on the ex-Decca employees net. Suspect this is a Hifix transmitter module - OK for 2 MHz or so but not much else. Walter G3JKV.
73s Tracey first detected it could be best described as a very slow FSK signal mark frequency 99.8 kHz / frequency shift 475 Hz ), after a short break this changed to steady, but reduced, carrier at
I've recently been editing the memoirs of Dr. J. A. Pierce, an American engineer who was responsible for much of the design work on the Omega and Loran-C navigation systems and I thought some of his
At 14:59 10/05/01 Thursday, Andy wrote: The local Non Directional Beacon here, EAS at Southampton Airport on 391.5kHz, puts out strong odd order harmonics. The fifth harmonic on 1957.5 actually cause
