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Operating procedures!

Ok… so HOW many times am I going to stare at a rather inactive fldigi screen after forgetting to turn the SignaLink box on!!

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Feldhell – well, almost

I managed to decode some Feldhell tonight after scrabbling about for the document showing what various data modes look like. It’s a strange mode!

Unfortunately the Spanish station sending it could not receive me so no QSO, but now at least I know what to look for. It takes me back to when I was interested in telegraphy systems as a kid, some decades ago now, but I’d never seen it in any form of action – represented by computer now rather than the machinery of old. Mind you what’s to say the Spanish station does not have said machinery!

There’s a whole bunch of info over at https://www.nonstopsystems.com/radio/hellschreiber-function-operation.htm

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Rather obvious EMC problem…

I noticed just now that the Raspberry Pi that runs my ADBS receiver and also has ‘1-Wire’ temperature sensors for the central heating registered a pipe temperature of a theoretically impossible -1700C.

Oh, did I mention that my 20m / 6m dipole is in the loft… and the Pi is in the loft… about 2 feet from one leg of the dipole… Hmmm. I can see a connection here given the timestamp was the same as a JT65 transmission.

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PC screen real estate…

One thing I’ve noticed is the screen required for these digital modes. I have a 22″ 16:9 screen and I had a secondary 19″ 4:3 one attached when I was writing my Ph.D. but it generated a load of RF hash. So now I just have the 22″ and it’s not big enough!

Many shack photos show dual screens or even dual PCs and multiple screens and I can see why. Ok I have the MacBook for logging and other things, but the shack PC desperately needs more screen size and/or more screens. Something else to work on. Unfortunately the PC is a scrapper that has no HDMI output so I am limited to a DVI and a VGA screen. Hmmm… so I need a better PC too…

I am just beginning to experiment with JT65 having set up WSJT-X recently and the screen is full.

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…and a close one.

So far I have totted up 19 countries – finally including the UK. I managed a BPSK63 QSO with a station just a few miles away, on 20m again as this is still my only HF antenna. I’m guessing this was ground wave. Funny, I’ve been interested in, and fiddling with radio for 40+ years and yet I am only now learning about propagation, helped in a large part to the two pieces in TX Factor. See http://www.txfilms.co.uk/txfactor/ – these are really good programmes.

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Noise…

Typical. I tidied the setup today and got everything into a better position for working – as you see in the photo now. And now there are stripes of noise across the waterfall in fldigi – as you can also see in the photo! I’ve moved everything about again to try to cure it to no avail. Something has clearly moved nearer to something else and they don’t get along. Grumble…