Sunspots and 10m - Mon April 25th 2016

Solar flux is just 82 today although the sunspot number has risen to 46 (K=2). The forecast for 10m propagation (F2) remains "poor", although Es might bring some life to the band.

We can already see the progression down the solar cycle. Next year will be much tougher by F2 on 10m. Luckily Es tends to be good in spring and summer whatever the state of the solar cycle, so we can depend on this mode on 10m, 6m and 4m. Es openings on Band II (VHF FM radio) and 2m are much rarer. They do occur but catching an Es opening on the higher bands is far less common than on 10m and 6m. May, June, July and August will see 10m and 6m open by Es almost daily.

UPDATE 1012z:  No spots given or received yet on 6m or 10m WSPR.

Return to 10m and 6m WSPR

After another night on 5MHz (60m) WSPR where the best TX DX was again KK1D (5409km), I have returned to WSPR on 10m (100% TX, 500mW, randomised TX frequency) and 6m WSPR (1W ERP TX 20%, RX 80%). Later I may switch to the FT817ND on 10m so I can listen 80% of the time as well.

QRP Club

From Oleg:

Dear Club 72 members and friends,
See weekly QRP Rendez-Vous reportand comments here - http://qrp-club72.blogspot.ru/
Visitors  of week: UA1CEX, RV3GM, SP5AGU, UR0ET, UR5EFD, DK3JU, RA1M, SM7RYR,  RU3NJC, DK3WX, IZ6FCK, LZ2NV, OH6NPV, UA1ADF, RV9WMZ, RV3UF,RW9RN,  PC2D,  RD7K,  UA4NU,  RN4NAA,  UA1CEG, UR5IFM, OM6TC, UA1ASB,RX3DIT, DL6UHA/p, RX6DL/8/p
Welcome all QRP stations on the next week "rendezvous", schedule - www.club72.su
Also  remind  about  last week of the April QRP Marathon "Look In the
Horizon".  Before  May 1'st you have enough time to take apart in the
Marathon. Visit Club 72 web page anf click Marathon in the menu.
72! Oleg RV3GM / KH6OB "Mr. 72"

Dyson hand driers - NOT amateur radio

In recent days, these have had a bad press. These are the blade driers found in loos. The bad press claims they circulate germs in the air far more than paper towels. I am surprised by this as I thought most air was contained and they are very efficient and fast.

Staying on 5MHz WSPR

In the end, the "London" grandchildren have only just left for home, so I have decided it is too late in the day to QSY to 10m. Instead, I'll remain on 5MHz (60m) WSPR until tomorrow, hoping for some DX tonight.

5MHz WSPR overnight

Well, I stayed on 5MHz (60m) WSPR overnight. Best DX on TX was KK1D (5409km). In all, 40 different stations in 12 countries have copied me on 5MHz WSPR.  I think others are copying me better than I am copying them as my noise floor is quite high here. So far I have heard just 7 unique stations, all in the UK.  If I am going to use 5MHz (60m) in future years I need to reduce my noise floor on RX.

Later today, I shall probably go back on 10m WSPR.
 
We have our "London" grandchildren staying here this weekend with their mum and dad. They take priority.

Sunspots and 10m - Sun April 24th 2016

Solar flux is 79 and sunspot number just 11 (K=2). The forecast for 10m remains "poor".

5MHz WSPR overnight

WSPRnet sprang back to life this afternoon (I think). It disappeared sometime overnight after 0250z I believe. This eventually allowed me to see the best 5MHz DX last night on WSPR TX. This turned out to be a spot from AB4DF (6436km). There may have been others, but WSPRnet fell over, so I shall never know. I hope to be on 5MHz overnight, so let us hope WSPRnet works! My antenna is very poor and very low for 5MHz. I am amazed how far I got last night with 2W and this low, inefficient antenna.

UPDATE 2135z:  37 unique stations have spotted my 5MHz WSPR in just over a day. Probably more as WSPRnet was not working for much of the time. 5MHz is proving to be a very useful band.

New portable SDR transceiver

Amateur Radio Weekly reports on a new portable SDR transceiver due out in August this year. Price is expected to be less than $500.

See http://www.qrpblog.com/2016/04/esdr-new-portable-sdr-hf-transceiver.html?utm_source=amateur-radio-weekly&utm_medium=email&utm_campaign=newsletter

Chernobyl pollution map - NOT amateur radio

See http://www.lemonde.fr/planete/video/2016/04/20/la-progression-du-nuage-de-tchernobyl-en-une-minute_4905544_3244.html

A very interesting map showing the extent of radio active pollution in Europe after the Chernobyl nuclear accident in the 1980s.