Big-Wheel review

The first article that I have written since my stroke has been published. This was a 1 page article about my Big-Wheel 2m antenna in the Jan 2016 edition of RadCom. David G0LRD kindly did the erection for me. I was really grateful to him. He just came over and did it.  A true hero in the real spirit of amateur radio. A million thanks David.

The short article was a start. I hope I can do a few more in 2016.

Very early 10m WSPR spots and 6m WSPR

SP9LJE (1261km) has already spotted my 500mW 10m WSPR beacon this morning. This is probably winter Es as it is rather close for F2 propagation.

On 6m WSPR, I am giving the usual spots to G8VDQ (93km). He is coming in yet again by tropo and aircraft reflection.  There were 3 spots of him earlier.  If there is winter Es then it would be good to get few Europeans in the log on 6m WSPR too.

Currently (and all day) I shall be on 10m WSPR and 6m WSPR. WSPRnet again seems very slow.

UPDATE 1354z:  No further 10m WSPR spots  since those by SP9LJE earlier. I have spotted G8VDQ a few more times on 6m. I'd be interested to know what gear/antenna he uses on 6m. He uses quite a bit more power than me. For aircraft reflection I am not convinced that antenna polarisation matters too much whereas for tropo it does matter.

Grass cutting - NOT amateur radio

So it is Dec 18th 2015 and as I write this I can hear someone cutting their lawn! Yesterday somewhere in Scotland hit over 17 deg C. The grass is still growing here - quite incredibly mild for mid-December.

Sunspots and 10m - Fri Dec 18th 2015

Sunspot number today is 52 (K=1) and solar flux is a respectable 117. 10m propagation is expected to be "poor". Yesterday was a washout here on 10m with no spots at all, which rather surprised me.

QSYed to 630m (472kHz) WSPR

A few minutes ago I went QRT on 6m and 10m WSPR. I am now active on 630m (472kHz) WSPR with 5mW ERP on TX from the earth-electrode "antenna" On RX (80%) I am not using the preamp. For the avoidance of doubt, I am also using the earth-electrode "antenna" on RX too.

UPDATE 2225z:  In the last 2 weeks my 5mW ERP from the earth-electrode "antenna" has been copied by 23 different stations. This evening it was copied by F1AFJ (607km) in JN06HT. I am sure my earth-electrode "antenna" is not the best antenna for the band by a long way, but it shows large areas of real estate and big antennas and ground systems are not necessary to achieve decent results on WSPR on the 472kHz band.

6m WSPR

G8VDQ (93km) was again spotted on 6m WSPR. A few days ago M0ICR was copied on 6m WSPR despite only using 200mW from North London.  I am sure people don't use the band thinking it useless outside the Es season. As WSPR has again shown, paths are often possible when the band seems dead. Modes like JT65 and JT9-1 should allow 2-way QSOs. With just less than 1 minute TX time, Doppler should be less of an issue than with WSPR using these modes. On 6m I only use a V2000 vertical fed with lossy coax. With a small beam, more power, and an antenna with gain, just imagine what would be possible.

Recommendation - give 6m WSPR a try! You may be surprised.

UPDATE 1034z: It looks like WSPRnet is struggling again this morning.

UPDATE 1036z: G8VDQ (93km)  spotted 4 times so far this morning on 6m WSPR.

UPDATE 1640z:  No spots all day on 10m WSPR, but G8VDQ (93km) has been spotted 9 times so far today on 6m WSPR.

Sunspots and 10m - Thurs Dec 17th 2015

Sunspot numbers are falling and today SN is 49 (K=1) but solar flux is still good at 125. The 10m propagation forecast is still "fair". Yesterday was disappointing although 10m WSPR did open late morning to central Europe.

That 472kHz preamp

Well I was on 472kHz WSPR RX overnight with the preamp in circuit so at good sensitivity. Sadly, not a single new station received, although (maybe?) the S/N of those received was a little better. To be honest, with QSB it was hard to be sure.  So, in future I may use the preamp at times although I am pretty sure I have copied most of the active stations that my current system is going to copy.

UPDATE 1014z: Since before breakfast I went QRT on 630m (472kHz) WSPR. I am now active on 10m and 6m WSPR again until this evening.

472kHz WSPR - RX only now with preamp

Since 2055z I am on 472kHz RX only with the preamp in circuit. I shall stay on overnight to see if any new stations are copied. Up to now the conclusion is the preamp improves the sensitivity and S/N of stations, but I have copied the same stations without the preamp. What I need are a few new (to me) stations right on the threshold of copy.

Interest rates - NOT amateur radio

It has started.  Gradually rates will rise across the world. People had better get ready for life when borrowing costs more. I can remember when interest rates hit 15% and mortgages were very expensive.  At the moment borrowing (and being in debt) is very cheap, but history tells us these days will not last.

See  http://www.bbc.co.uk/news/business-35117405