Roger G3XBM's (Mainly) Amateur Radio Blog

Yesterday I fired up the 500kHz WSPR kit (2mW ERP from the loop antenna) for the first time in several months and was pleased with the rep...

As the days go by this autumn, the sunspot numbers continue to climb progressively and I am beginning to think we may be in for a decent cyc...

After a few hours of intermittent QRP operation I've plenty of QSOs in the log, many when using just 500mW pep into my halo antenna. Sta...

This weekend it is the BIG contest of the year - the CQ Worldwide DX contest (SSB) which runs all of Saturday and Sunday. Unless the sun pla...

The above QRP rigs, all of which are in good condition, are part of my station but very underused compared with the FT817 and my homemade ge...

This afternoon I rebuilt the XBM10-2 28MHz micro-transceiver onto a small piece of copper laminate and put the whole transceiver in a...

Tomorrow evening my house grows about 200% in size. Actually my 2 delightful young grandchildren and their mums and dads go home meaning I c...

Well, off to a good start today with a couple of QSOs with the 2 transistor XBM10-2 60mW 10m CW transceiver. Much to my surprise I got 439...

This afternoon I built what is probably just about the simplest CW transceiver possible for use on 10m. Based on my XBM80-2 design for 80...

28MHz WSPR this afternoon - loads of signals Sadly this afternoon the internet WSPR database crashed again, just at a time when 10m prop...