Roger G3XBM's (Mainly) Amateur Radio Blog

One of my Facebook memories today was this photo of my WISPY 10m WSPR RX. I think this was first created in 2011.  Later it formed the basis...

It is amazing to believe that this design of mine is 10 years old!  These days, many have gone on to FT8 instead, but there is a good follow...

Although both the TX and RX were built, I never got around to boxing and testing the full transceiver version. It should work, but I have...

This photo shows a FB memory from 9 years ago. It later occurred to me that you the same idea would work on FT8 RX so the FT8R was born. See...

Many years ago I designed and made this TX beacon for 10m WSPR. You might like to try it as a winter project.  If you want more power, just ...

One of my ideas is for an ultra simple crystal controlled FT8 transceiver for 10m probably. Another option is 15m. Crystals can be quite exp...

A few days ago I showed the schematic for my WISPY RX. The photo shows the actual 10m WISPY RX.  With a couple of low cost GQRP 7030kHz crys...

It is some years since I designed this TX. At the time I needed a quick and low cost way to TX WSPR on 10m. I opted for a DSB TX using l...

Some years ago I designed and used this very low cost rig as a beacon on 10m WSPR. Even the crystal is low cost. With 10m in decline, thi...

Some time before my stroke in 2013, I designed a simple WSPR beacon for 10m that used low cost 14.060MHz QRP crystals doubled. These pulled ...

Some years ago (in my fit days) I build a simple DSB WSPR rig for 10m based around a low cost 14.060MHz crystal bought from the GQRP club....

Unique 10m WSPR spots using WIPSY TX today Having given up on 20m CW this morning, I fired up the 10m WISPY beacon TX running around 250...

For the first time in a few weeks I set the WISPY 200mW 10m WSPR beacon running to see what reports I got whilst getting on with jobs. I...

The G4SFS version of WISPY Yesterday I received a nice email from Peter G4SFS who told me that he and Dave G6WZA had made a couple of ...

A few people have requested a video of WISPY, my QRP WSPR beacon for 28.1246MHz. This video shows the TX beacon only. I have a companion RX ...

Today WISPY, my little 10m 200mW WSPR beacon , excelled itself getting spots from 5 continents with the best being a spot from Australia lat...

For the last month we seem to have been away from home half the time. The last few days we have been in Yorkshire for a sibling reunion with...

Today I did a rebuild of the TX only version of the WISPY 10m WSPR beacon to improve it in several ways.  Switching to germanium diodes ...

UPDATE 11.9.12: see later post for improved version WISPY is a full 2-way WSPR transceiver but there may be occasions when just a simple W...

Breadboard of WISPY TX - 50mW pep WSPR (100mW DSB) Very pleased with my little 3 transistor DSB 28MHz WSPR transmitter. Since turning i...