Roger G3XBM's (Mainly) Amateur Radio Blog

This is a band that is gaining in popularity. It is very good when there is Es, but it is also good for inter-G working. I am sure that with...

Looking through some old photos I chanced on this one of my 4m transverter.  There’s no way I could do this now with my poor fine motor skil...

  This morning, I came across this memory on Facebook showing a 4m transverter I designed and made some years ago. It was published in SPRAT...

 As long as there are no storms nearby, my plan is to go on 8m QRP FT8 and QRP 10m WSPR TX with my 500mW beacon that does not need the PC. A...

Today, I have decided to concentrate on 4m FT8 with about 10W to my 8m wire dipole matched via the auto ATU in my FT-710. It is now 0814z an...

Starting tomorrow, I intend to concentrate on 4m FT8. Even with my compromised antenna, matched using the auto ATU in the FT-710, much of Eu...

 As I have no 4m antenna, I am using my 8m dipole, tuned via the auto ATU in the FT-710 So far just spotted today by G3SHK (200km) and no E...

 Using my 8m dipole tuned via the auto-ATU in the FT-710, I am on 70.154 MHz FT8. So far, 4 Gs have spotted me with the furthermost G4HGI (...

As we are now in the Es season, I shall probably try 4m FT8 from tomorrow. There are now quite a few countries on 4m, which is very differen...

Yesterday I went on 4m for the activity contest and on FT8. My conclusion is 4m is underused, at least outside the Es season. If you are thi...

Whilst waiting for the 4m activity contest to start I went on 4m FT8. G3WCS (223km) spotted me pretty well. even though I was using the low...

 As you can tell, I seem to back losers!! A reminder that the 4m activity contest is on tonight starting at 1900z (8pm UK clock time). I hop...

Jason M0NYW has a personal 4m beacon. I predict he will see lots of spots this Es season. It is on 70.093 MHz (70.092 USB-D) sending FT8 +...

Yesterday, I tried 12m QRP FT8 as an experiment. It was not as busy as 10m, but I was still spotted widely. More stations spotted me than I ...

  I came across this photo yesterday.  See  https://sites.google.com/view/g3xbm4/home/vhfuhfmicrowaves/homebrew/4m-transverter .

Currently I am on 70.013 MHz FT8 RX, hoping to see the EI4RF beacon, that I believe has some FT8 sequences.  I am not hopeful. They say tun...

Perhaps I am a sucker for punishment! Once again, I am on 4m FT8 on 70.154 MHz. No spots. Last weekend I was spotted by a few stations and h...

 At 1140z, I turned on my 4m FT8 with my compromise antenna of the 2m big-wheel and coax tuned via the auto ATU in the FT-710 So far, no spo...

Once again on 4m FT8. So far, no spots.  UPDATE 1508z: After a whole day with absolutely no 4m FT8 spots (and apparently no monitors either!...

At about 1810z, my 4m FT8 was turned on. My compromise antenna is again the 2m big-wheel and coax tuned via the auto-ATU in the FT-710.  Aft...