I've just seen, about ten minutes ago, a single solitary QRSS30 dot on about 137.707± 1Hz or so, John. Could this have been you, I wonder? Martin GW3UCJ Swansea. Can't do it tonight. Problem with ant
Two very strong signals on 136.172 or thereabouts - not been on long enough to record callsigns yet, but they are so strong that I can hear a 2Hz beat between the two! Martin GW3UCJ IO81CR Swansea, S
The band is full of signals tonight - Who is on 137.350 or thereabouts? Lovely strong signal but the CW doesn't seem to make sense - unless it's me. Martin GE3UCJ Swansea IO81CR
I use a decade inductance bridge to series tune my (approximately) 50m end-fed inverted U wire for 137kHz. It uses 3mH - 2mH is too little, 4mH is too much. Obviously I need to be able to vary this i
Brings back memories, Andy - I used to buy old valve radios from junk shops in the late 50s, early 60s for 2 shillings and sixpence each....if I'd kept them all intact, I could be living in the Baham
Yes - I was given this tip by someone else yesterday, Kevin ( my apologies to the original tipster - I'm in another location now, and can't recall who it was!). As you say, the problem is to find suc
Oh Wolf, please! - you'll have me fantasizing again! Martin GW3UCJ. build a really big former from the "brickwork" used for Renato's monster VLF induction coil ? From http://www.vlf.it/romero3/ics101
Morning, Pete. Thanks for this. Yes, this is what I should do. My problem is that I get carried away - I begin by thinking of making a variometer - then I decide that it *must* be the biggest one eve
I can see a carrier on 137.500 or thereabouts, good and strong, a repeated transmission. It just looks like a wobbly carrier - or is it a transmission mode that I'm failing to recognise? Martin GW3UC
Thanks Stefan - this is what I feared. Guess that I'll have to be more conventional! I did look for you earlier this evening, but couldn't see your signal. I hope your new FETs arrive tomorrow. Marti
Thanks Jim.. I tried to decode it as WSPR without luck. Nothing new in that for me, though! Anyway, he's a nice strong signal so let's have another go..... Martin GW3UCJ The "wobbly carrier" signal i
No, it's not Andy, Albert - he is about 50Hz lower in frequency, and decoding very nicely with me. Whoever it is on 137.500, he's still sending - about one period on, two periods off ( I haven't got
That was me, I think, Terry - GW3UCJ in Swansea. Not a real one, I'm sure. Would have been nice if it had been! As it is, I'm still trying to decode any Russians. Blame the mountains! Martin. ~~~~~~~
Mal - can't recall the details, but USB-firewire adapters don't work with the Flex - or at least, most of them. There's been plenty of discussion about this on the [email protected] group. I'
Thanks for this, Gary - yes, I've given up the idea of using the IEEE488 interface - external switching it will be. Still looking for that book, incidentally - I haven't forgotten. Martin GW3UCJ. ~~~
Well, what you're saying could sound simple to you, Graham, but a nice keyed relay sounds a lot simpler to a Silver Surfer brought up on 6V6s and 807s! Martin GW3UCJ. ~~~~~~~~~~~~~~~~~~~~ It may be p
I moderate one Yahoo group, and am a member of at least another dozen, and fully agree with those proposing an LF Yahoo group, with all the facilities available. In ten years, there have been very ve
I'll use transistor switching really, Graham - the relay is metaphorical... I can just about manage that...solid state 12AX7, no problem! Martin GW3UCJ. ~~~~~~~~~~~~~~~ Well that's the problem, we al
I've got a R&S APN62 sig genny, 1Hz to 260Hz synthesised, which I'm thinking of using as a signal source for a 137kHz TX. I would like to key this from a QRSS program on a computer. The only control
