472kHz transverter

472kHz transverter (homebrew design and build)

All winter, spring and indeed right up to now, I have been using my FT817 and a homebrew transverter for 472kHz WSPR. Although the transverter puts out about 12W, my ERP on 472kHz is a measured 5mW from the earth-electrode "antenna". Although far from efficient, it provides me with a means of radiating a signal on 472kHz WSPR.  Best TX DX this season on the band was well over 1000km to Norway on several occasions. It has copied 1525km on RX with just the FT817 without a preamp.

New UK record on 241GHz

I guess we do things the hard way "because it is there".  There are far easier ways to communicate over this distance! As  I said before, personally I think 481THz (optical) is much easier than microwaves.

UK distance on 241 GHz improved to 400m in latest tests by G8ACE. Tweeted by @UKGHZ which is the UK microwave group.

See https://twitter.com/UKGHZ/status/74124618582711091 .

Local Church Fete - NOT amateur radio

Church Fete in the churchyard

This is usually held the next weekend in June each year, but it was changed to coincide with the Queen's 90th birthday celebrations. Although thundery showers have been threatened all afternoon, they have kept off for now. My wife is running the cake stall as she does most years. It is usually a good chance to meet village people not seen for a while.

6m daytime and thunder

OH5MD (1757km) spotted me on 6m WSPR this lunchtime, but there were no spots on 10m WSPR of my 500mW WSPR beacon.  Because of the risk of thunderstorms this afternoon I have gone QRT on 10m and 6m and disconnected antennas and power plugs to the rigs and PC. I may return at teatime.

There is quite a high risk of storms this afternoon.
See https://www.lightningmaps.org .

UPDATE 1715z:  In the end it was muggy, but dry, all afternoon, The storms seem to be in the Ipswich area and moving away. I shall probably return to 10m and 6m WSPR.

UPDATE 1730z: 10m and 6m WSPR now on. There was a strong signal on 6m just after turning on, but being the first cycle it did not decode.  I shall have to hope this signal returns soon.

6m Overnight

Although my 500mW 10m WSPR beacon was not spotted overnight I did see OH7TE (1861km) running 10W at 0418z on 6m WSPR with quite a bit of drift. Although likely to be Es, I am not certain. G4NRG (58km) was spotted on 6m WSPR this morning.

It certainly to be on the right frequency in the 6m band! See my post yesterday!

Sunspots and 10m - Sat June 11th 2016

Solar flux is 85 today and sunspot number 28 (K=2). The forecast for 10m F2 propagation remains "poor".

Marlon Brando

Tweeted by the RSGB:

Friday fun fact – Marlon Brando used the call signs KE6PZH and FO5GJ. He said amateur radio allowed him to be himself.

10GHz DX

I get excited about German spots on 10m WSPR. Meanwhile I noticed this from G4HTZ:

"Just worked DF6IY on 10GHz SSB at 618km ..fantastic conditions but little activity @UKGHZ

Now that is DX!  No doubt helped by being on the coast, but really well done Steve.

6m WSPR - doh!

I knew I had to offset my FT817 on 6m WSPR but it helps to be on the correct frequency! I realised I was set to 50.292700 whereas I should have been 50.292970. As soon as I corrected my stupid error of the last few days I was immediately spotted by G0LRD (25km) at +5dB S/N. I feel so stupid. Maybe now I'll see some 6m Es!  Silly boy.

Meanwhile my fully stand-alone W5OLF 10m 500mW WSPR beacon continues to be spotted across Europe and beyond. This little beacon has given me so much fun - it beats everything I have ever owned. It is so tiny too. If everything else had to go this is the one bit of kit I would want to keep. In terms of DX per pound spent this is incredible value. It is so small it can be overlooked, but boy does it pack a punch.

UPDATE 1835z: My first DX Es spot on 6m WSPR this season: EA1CCM (1301km) spotted me at an incredible +4dB S/N at 1832z. Yes, it definitely helps to be on the right frequency!

UPDATE 2135z: OH7AZL (2000km) was spotted on 6m WSPR earlier this evening.

10m WSPR Es - late, but here

Eventually, I see my 10m WSPR is being spotted in Germany from 1006z. This was later than yesterday, but definitely Es around again. I wonder what the rest of the day will bring?

UPDATE 1215z:  10m WSPR spots from France and Denmark now.