11 Nov 2024

Bare - NOT amateur radio

I always think of November as the worst month of the year. It is often dull and dark, the trees lose their leaves and it really is "the pits".  At least in January nights are getting a bit lighter and there are the signs of new life.

Take, for example, the horse chestnut trees in the churchyard shown in the photo. A few weeks ago the leaves were there. 

Now there are very few revealing the rook's nests. I look forward to these being repaired in the early spring and the first buds.

Sunspots - Monday November 11th

 Solar flux is 231 and the SSN 121. A=25 and K=2.

10 Nov 2024

QDX digital transceiver

This digital-only transceiver from QRP-Labs is really tiny. It can produce 5W, but I have added diodes in the power lead to ensure the RF PA is working without being stressed. This reduces the power out still further, but makes very little difference.

See https://shop.qrp-labs.com/qdx .

Watery sun - NOT amateur radio

Briefly, the sun has tried to shine, then given up. 

Tomorrow should be sunny when this "anticyclonic gloom" moves away. 

The photo shows our churchyard earlier.

Plums - NOT amateur radio

These plums are still on a small bush on our road. I am surprised they are still there and nobody has picked them. 

We have had a very mild autumn so far with little sun or rain.

6m QRP FT8 (Sunday)

My QMX+ on 6m was turned on about 0945z. At 1033z, I have been spotted by 12 English stations. 

Looking at https://www.tvcomm.co.uk/g7izu/radio-propagation-maps/europe-sporadic-e/ it looks like I could be spotted in mainland Europe. 

I am less hopeful of being spotted "across the pond" today on 6m FT8.

UPDATE  1035z: Spotted by 14 English stations. Remember this is QRP and a vertical omni, proving that with 6m FT8 contacts inter-G would probably be possible regularly with just a modest station.

UPDATE 1220z:  Spotted by VK9CV (11514km) on 6m QRP FT8. I think he is genuine. 40 stations spotting me on 6m FT8.

UPDATE 1624z:   55 stations have spotted me today on 6m QRP FT8 TX. No North American spots. I suspect the E-W F2 MUF has to be exceptionally high for this to be possible, especially with QRP.

UPDATE 1651z:  QRT on 6m.

10m 500mW WSPR (Sunday)

 My QRP 10m RX beacon was turned on at about 0945z. So far a single, strong spot in Germany.

UPDATE 1028z:  Spotted by 14 stations. See table.

UPDATE 2010z: 77 stations have spotted  my 500mW QRP  with the furthermost Brazil over 10000km.

Sunspots - Sunday November 10th

 Solar flux is 221 and the SSN 176. A=32 and K=2.

9 Nov 2024

6m USA - not today I suspect!

It looks like I am seeing no 10m WSPR spots today from the USA, so I very much doubt there will be any F2 6m propagation "across the pond" today.

This is where FT8 is so useful. It works with weak, fleeting signals and is well monitored. If it even briefly opens on 6m, we would know about it. This is why this mode will be good on 10m in the quiet years.

8m ISM band

This was posted earlier by N2OTO in Florida. 

It shows the activity 40.66 - 40.70 MHz in the ISM band. I expect if we looked in Europe we would see much the same. 

Clearly the ISM band has other users! Those that permit operation 40.66 - 40.70 MHz have to accept this.