Roger G3XBM's (Mainly) Amateur Radio Blog

These were very popular QRP CW transceivers some years ago. I owned a built one and had lots of fun with it. As I recall, I mostly used it o...

Many people have iPhones. I had no idea (until seeing it in Amateur Radio Weekly yesterday) how many apps there are for Apple and Android. M...

Every day in my email I get The Knowledge newsletter (Google it). It is free. Shown today was a farmhouse  in Suffolk, UK.  I am sure many c...

My gear was turned on at about 0905z UPDATE 1611z:   Spotted by 187 Europeans and I have spotted 252 here, presumably Es mostly.   

 My beacon is on. UPDATE 1341z: So far 46 European stations have spotted me. Es I guess.

Most hotels now have a buffet breakfast that keeps you going all day. This was my breakfast in Canterbury yesterday.

 Solar flux is 142 and the SSN 133. A=15 and K=3.

Most people are familiar with ferrite rod antennas as RX antennas. I think this works as the effective size of the rod is "magnified...

 The largest nuclear power plant in Europe (I think) is in a war zone.

Quite a few people are experimenting by sending data over LoRa Meshtastic which is around 898MHz in Europe and does not need amateur radio o...

After a few days away with my son and family in Kent I am now back home and on 10m QRP WSPR.  UPDATE 1921z:  Spotted by 17 Europeans, presu...

 Solar flux is 148 and the SSN 145. A=15 and K=3.

Maybe I am just a grumpy old man!! The fashion with young people now seems to be to get a tattoo.  To me, they seem horrible. Some even have...

 This is always very informative. See https://youtu.be/cX1Pfh8-eh4?si=GyIgLrIJS9GnuYQw

 Solar flux is 145 and the SSN 161. A=13 and K=2.

The basic problem appears to be that there is no trust between opposing parties. In my view nothing much will happen until this happens.  In...

This really conflicts me.  For those unable to enjoy amateur radio in the conventional way (maybe in a care home, hospital or hotel room) it...

 Solar flux is 142 and the SSN 165. A=11 and K=2..

Most days, I watch the Joe Blogs videos on Iran. At the time of writing peace looks as elusive as ever and the world suffers.

This circuit by GM3OXO is true classic QRP transmitter.  For serious use, a low pass filter for the band chosen should be added. I think it ...