Roger G3XBM's (Mainly) Amateur Radio Blog

Although I got no FT8 decodes, my 23cm QRP signal did make it to the QTH of G4HJW , despite double glazed windows, bushes, a shed and 2 hi...

Bernie G4HJW recently posted to the UK Nanowave Yahoo about some powerful red LEDs that he bought from China for just £2.80. A couple of th...

Although I posted this on the Nanowaves Yahoo group , I forgot to update folks reading this blog on the progress with this optical transcei...

In the last couple of days, armed with my wife's close-up reading glasses, a magnifying glass, tweezers and a fine tipped soldering iron...

The G4HJW optical transceiver kit Bernie G4HJW is well known for his innovative work on microwaves and optical comms. Last year he desi...

G4HJW and G0VQH enjoyed a successful 7 mile optical frequency QSO during daylight when in Scotland recently. Bernie also worked GS3PYE/P ...

If you spot G4HJW/1 on the WSPR database on 472kHz this is Bernie who is about 9km from me on his 30m baseline earth-electrode antenna. G4H...

The 481THz kit at the G3XBM/P end of the path This evening, thanks to Bernie G4HJW , I managed my first 2-way optical QSO over a path of...

Bernie G4HJW is well known for his innovative microwave designs as well as many other good projects in recent years. This year he has pro...

G4HJW received on 481THz over an 8.63km non line-of-sight path Bernie G4HJW was 20dB S/N in 0.67Hz bandwidth earlier this evening at m...

Map showing coverage of the 471 THz optical beacon GB3CAM Guess what - I've just discovered that not only is there a decent level of...