I believe that at Station X (aka Bletchley Park) the monitoring positions used large numbers of HROs and AR88s, fed from a common aerial farm. Some kind of preamp was needed and I have been told they
Ah! What I was really concerned with was whether the QRM level would be noticeably different with the proposed enhanced modulation. Or is there some way we could use the received signal to improve ca
It looks as if they're adding an additional pulse after number eight (for a slave) or nine (for a master). Does anyone have any idea what this will do to the transmitted spectrum, particularly around
It was transmitted on SWR Fernsehen. This is described in its publicity as "Unser Drittes" so I assume it is effectively the third German TV network, which I believe has regional variations. 73, John
The previous owner of this house left us a not-quite-working satellite receiving system and no documentation. It is now functioning and as far as I can tell it is pointing at Astra 1E at 19.2° east.
For two or three years, somebody has been advertising in the back of RadCom for similar rods. I do not know if he has been successful. John F5VLF/G3PAI ** REPLY SEPARATOR ** LF/MF up to a MHz or so?
[ ... ] Getting into eastern Europe from G on CW may not be easy (see previous postings from OK). Anyway, QRSS can be fun. 73 John F5VLF/G3PAI -- mail2web LIVE ? Free email based on Microsoft® Excha
I believe the term CW was originally coined to reflect the fact that you had a continuous sine wave transmission when the key was down, whereas with the previous technology (spark) you had a transmit
One of my mentors (G3ERN SK) used to light an eight-foot fluorescent tube by touching it to the top of his 160m mobile whip. He then walked around the yard and the tube stayed lit. John F5VLF/G3PAI
This move will also be of great interest to cave radio users, although I have not yet looked at the map to estimate the effect on cave-to-surface communications. Anyway, there is no substitute for ex
I have made enquiries about this, in the light of a recent posting. My contact points out that P&O doesn't own P&O Cruises any more (they are part of the American group Carnival) but a further enquir
Chris, Well, I seem to recall Isaac Asimov once traced an error in the published value of a physical constant and found the error had been propagated through several learned papers, so I would be in
[ ... ] When I was experimenting /P with 73 kHz I was required, when giving prior warning, to say whether I would be working underground or on the surface. Something tells me none of the inspectors w
