The Industrial museum at Amberley put on 'theme' weekends, such as model steam engines or vintage cars etc. This coming weekend we are having a 'cats whisker' theme - some the vintage kit that the mu
The CFA antenna is made by Hately Antenna Technology (GM3HAT). Every month for many years now the RSGB has carried an advertisment for this company. (until May, when the advertisment said they were m
Here in Sydney Australia we have (had) a CFA installation in commercial use. I have done relative FS measurements (single point) at a distance of 60Km and can report that the CFA antenna is NOT work
As many of the the stations worked were using 136.5 +/- 200 Hz, you can imagine my disappointment when QRM from the intermittent carrier appeared on 136.5, with strong sidebands +/- 100 Hz (already
Alan Melia Jack has confirmed he will continue transmitting tonight as usual on the hours and half hours for 10minutes. He was best here at 2200z good 'M' almost 'O', at 2300z he was only a 'T' and I
Hi John, Jack will tx from 2200 Z on usual timing . I am ready to listen agn If anyone wud like to transmit thi way , try tx from 10 minutes after the half hour and hour for 20 minutes. I am trying A
VE1ZZ peaked to R 'O' at 2335 and again at 0001 R 'M' I have three adjacent Loran lines, one just below 136.50 and the other two at 136.504 and 136.505 respectively; so the VE1ZZ signal at 136.502 is
Hello all. I have been receiving VE1ZZ most evenings (2300 - 0030) but he is only readability 'O' over very short periods during the beacon transmissions. QRN levels been very high although they seem
I believe 10 second dashes were seen by G0MRF right after I first had the xband qso with Dave I called Jack VE1ZZ on landline and he came on . Dave heard his 10 second dashes........................
When I received VE1ZZ I was using Spectran in a low resolution mode (470 - 540Hz). The reason for that was I was not sure how close the transmission would be to the stated frequency. As luck would ha
Hi John I have been trying to call Jack via landline. Not home . I will be coordinating with him to provide you in Eu with a early warning of his schedule . That would be great. I have also tried cal
Funnily enough, I was using DL4YHF's excellent Spectrum Lab software to record spectrograms of 136.5kHz last night - but unfortunately only after 0100! Oh, well. In fact VE1ZZ transmitted until 0130.
Received QRSS signals from VE1ZZ at 0030UTC 21/12/00 on 136.502kHz. Readability 'O' degrading to 'M' later QRSS a bit fast with a dash speed of 4 seconds (approx) CFH off so relative conditions unkno
Saw a fast CW signal on 136.49kHz (approx) at 2300UTC (20/12). It had a slight LF drift. I wasn't paying attention to it at the time and only saw the end bit. I transmitted a QRZ but no response. Who
600 watts of RF puts about 4 amps into my long wire so if Jack VE1ZZ gets 12 amps into his long wire, he must have 5 or 6 KW of RF! Well not necessarily. If Jack has got 900ft of wire in his antenna
Aha... wondered why you hadn't mentioned it before - unfortunately, the guard circuit is not shown in the simplified diagram in the LF handbook. What it is - the tank coil has a link winding on it. T
Ceramic insulators should not be a problem. However my Admiralty Handbook of Wireless Telegraphy (1925) has this to say: "Loss by Leakage over Insulators ..........................It is, therefore, t
Hi Alan I have just received my Jan copy of Electronics World ( or Wireless World as it used to be known) with a article by two Italians on 136MHz. There are no call-signs given, and a lot of the bac
Some of us don't have such large antennas as you, Peter. For 1 Watt ERP I would need approx 4kW RF. Yes, I am well aware of that - and that is why I mentioned I5TGC's LF antenna, which must be the s
Hi Geri Does anyone of you have a proven scheme of a small linear PA available, that delivers about 2 or 3 Watts from 10 mW, preferably from 18 Volts (which is the voltage used by the exciter)? I am
