Roger G3XBM's (Mainly) Amateur Radio Blog

This is something I have never tried and I have no idea how it compares with WSPR or FT8.  The advantage is the signal (often real QRPP) may...

QRSS receive is not something I have tried. I am wondering what the best software I should use? Any recommendations would be appreciated.

Although WSPR comes in several guises and speeds, I have no idea how QRSS (slow CW) compares with WSPR. Maybe Googling will tell me the answ...

Before moving to the current QTH about 7.5 years ago, I did some tests on 136kHz QRSS. I used the E-field probe for 136kHz on a mag-mount on...

Many years ago, I tried looking for my tiny 137kHz beacon with a small E-field probe mag-mounted on the car. After seeing the signal quite...

Being a keen WSPR user, I have not used QRSS on HF, although I have done on MF, LF and VLF.  A useful page about QRSS is here .  QRSS requir...

The Ultimate2 QRSS kit The latest edition of SPRAT, mine arrived yesterday, reminded me that G0XAR and G0UPL have produced a very nic...

QRSS and CW beacon TX for 137.685 kHz Today I went into the shack with the intention of making a new transverter for 137kHz based on my ...

After a few weeks on the new 472-479kHz band, my thoughts are again turning to 136kHz, a band that I experimented with a year or more ago no...

Hans Summers G0UPL has just announced a wonderful new kit. Amongst other modes it also supports stand-alone WSPR beaconing when used with...

There has been quite a bit of debate recently about just how good certain weak signal modes are when compared against similar modes. So, ON7...

Recent tests with earth electrodes at VLF have got me wondering about a simple QRSS HF/VHF beacon TX powered entirely from the rectified ma...

Getting a very strong signal this evening from G3XDV on 136.177kHz QRSS60 receiving Mike on the earth electrodes fed straight into the deaf...

This morning I did some more tests using my little 136.93kHz 2W QRSS3 beacon feeding into the 20m spaced earth electrodes. The TX end was ...

Today I tried some more experiments with my 20m spaced earth electrode "antenna" and small QRP beacon TX on 136kHz. I switched ov...

All being well, I'll be carrying out some more earth-mode (through ground conduction current) WSPR and QRSS tests on around 1kHz and 8....

G3ZJO has a QRSS3 beacon sending in FSK built in Altoids tins and running QRPp power. This is is a screenshot (from Spectran) of his signal...

Looking around for a simple beacon keyer to use with a QRSS beacon, I discovered the ICs sold for $6 (available via Paypal) from K1EL. This ...