Roger G3XBM's (Mainly) Amateur Radio Blog

After a brief period on JT9 RX (nothing copied), I have gone on WSPR (10mW ERP,20%).

There is an ARRL book on the digital modes JT65 and JT9. These are among my favourite modes and ideally suited to QRP. I have used JT9 on ba...

Tomorrow, I may give these modes a better go. In recent days I have reverted to WSPR (which I can monitor in the lounge) but feel the urge f...

As my vocal chords are still not right, I am trying to limit myself to digital (keyboard) modes like WSPR, JT65 and JT9. This afternoon I wo...

QSO with UA4PPQ on 20m JT9-1 today Well that was pretty easy: I loaded the latest software, listened a bit, then called CQ in JT9-1 and ...

Julian G4ILO has been having some good success on HF with JT9 mode, so I am encouraged to have a go too. This afternoon I'll be firing ...

G3ZJO and I have reported each other's 500kHz WSPR signals and each managed to get reports from close on 1800km away but, despite being...

My last post with this title got corrupted when I tried to edit it, so this is a shortened revised version. 500kHz WSPR this evening has bee...

On 500kHz this morning PA0A and G3ZJO were testing with the new JT9-2 weak signal mode. Not yet copied Eddie, but PA0A was coming through...

Hot news from Joe Taylor K1JT on the RSGB LF Yahoo group this evening about a new 9-FSK digital communications mode (for 2-way QSOs rather ...