New UHF beacon GB3UHF

I am looking forward to this new GPS frequency locked 432.430MHz beacon GB3UHF near Wrotham Kent (IO91) becoming active. It is to be co-sited with GB3VHF. It is at an interesting distance and should be copyable on my 2m halo, even though I shall be slightly off the main beam. Approved by OFCOM, it is now awaiting a site sharing agreement that could take some while. It is NOT yet on-air as far as I know. There is a real shortage of UHF beacons in the UK. GB3BSL (Bristol 432.934MHz)  is off air I believe.

The new beacon's frequency will be 432.430MHz to a pair of 3 el J-Beam yagis beaming roughly towards the Midlands (288 and 348 degrees headings). Being 3 el beams, the aim is quite broad.

See http://www.gb3vhf.co.uk/GB3UHFdetails.html

Back on 474.2kHz WSPR

Today I have returned to MF WSPRing., The antenna is currently my very short Marconi which consists of a very short vertical wire (1.5 to 2m?) with about 15m of wire run horizontally along the top of fence and trellis. This is a shorter (horizontal) distance than an earlier version that did not work well, probably because of foliage losses. The whole antenna uses the mains earth.

Matching is via a 110mm diameter loading coil and a 3C90 toroid to step up from 50ohms to several hundred ohms resistive.
 
So far PA3ABK/2 is a good consistently strong daytime signal at -10dB S/N with 0.5W ERP. There are very few G stations active, so no reports of my own signal yet.

UPDATE 2005z:  Only 2 stations copied (PA and DF) and just 3 reports from a single station PA3ABK/2.   Very disappointing so far. There is a lack of G stations active on WSPR this evening so far.

10m TEP?

PY2RN is putting in a COLOSSAL +9dB S/N signal on 10m WSPR at 1854z with 5W and I just wonder if this is perhaps TEP assisted? Chordal hop across the equator could account for the very low attenuation. Just a thought.

UPDATE 2206z:  WA6JRW in DM14he in California (8664km) was reporting my 2W WSPR at 2024z. The band is still open transatlantic here at this QTH at 2152z. W8QYT (5W 5807km) was a good +4dB S/N here at 2144z and he was spotting my 2W at -5dB S/N at 2138z.   I am still getting transatlantic spots at 2W as late as (at least) 2200z (4 transatlantic spots from the 2W 2200z TX burst).

One thing I have noticed  is signals on long 10m DX paths are often strongest just before the band dies out. This is often the most productive time with QRP power levels.

I stopped monitoring on the WSPR.net database at 2208z.

QSY to 10m

After a few days on 40m, I have QSYed back to 2W on 10m WSPR. 4X1RF is already spotting me  but no signals at any real distance are yet being copied apart from EX1UN  in central Asia.  Sunspot count is pretty good, so I expect some decent DX during the day. No JAs yet copied, which is a little odd.

UPDATE 1052z:  Just seen PY2RN in my log at 1038z at 9950km running 5W and I've just been spotted at 1050z by JH3APN at 9419 km.

UPDATE 1138z:  1118z saw my first stateside report, from WA3QJU at 5695km. At 1138z CX2ABP was copied at 11127km.

UPDATE 1610z: Very pleased to see my old work colleague G3WKW in the 10m WSPR log. 134km GDX path and copied 7 times between 1610z and 1806z.

Chinese SDR transceiver

Just seen this on a Russian site: http://www.cqdx.ru/ham/qro-qrp/chinese-sdr-based-hf-one-mkii-qrp-transceiver. Looks like an interesting rig.

See also http://yo9irf.blogspot.co.uk/2013/11/hf-one-mkii-cheap-mobile-transceiver.html

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRKY7_je5IJYmNzG8H0xyX_CQ2KcEJlA8f0yq9DbPZ3pRMq2M6IzSdB1Pl77duOAoN0-fOW8SLgzkg7RiCJXeHxre1N7VRGLVsdEdeZcrzgBdOKFzH7Pnmn7vCMbFLJdh0Kau6oaGsqvIe/s1600/HF-ONE-MKII-QRP-Transceiver-Kits+(3).jpg

Ten-tec Argonaut VI

http://cdn2.bigcommerce.com/server1500/ooh0w/products/358/images/724/539_web_photo__37987.1373600182.1280.1280.jpg?c=1

Although outside my price range at £995 in the UK, the Ten-Tec Argonaut VI gets rave reviews from its fans. On www.eham.net it usually scores very well apart from those who hate the lack of 60m and 12m coverage.  I cannot see me ever buying one but if you want a QRP rig (10W) mainly for home use, this could be for you, if you can afford one. RX performance is certainly very good.

40m WSPR - using 500mW

Since last evening I QSYed from 6m down to 40m using just 500mW to my low Par 10/20/40m end-fed antenna. I am pleased to report that my signal was copied by K9AN at a distance of 6505km during the late evening. I copied a PY (Brazil) at -10dB S/N (9550km) but he was running a ridiculous (for WSPR) power of 50W.   5W would easily have been copied.  Perhaps he is new to WSPR does not realise just how effective WSPR is yet?

Some of the reports below show 2W before I reduced power to 500mW, but best DX reprts were at the 500mW level I am pleased to say.

40m unique WSPR spots - last 24hrs

6m WSPR summary

After several days on 6m this is the total summary of WSPR reports (none of me!). All attempts to reach TEP "ends" failed, on this occasion, as there was no Es about. I did see some weak MS bursts of very short duration but these are not suitable for WSPR. The drift on G3XGS's signal suggests aircraft Doppler too. Now I shall turn my attention to another band. No 6m TEP I am afraid.  

6m WSPR spots

CN8LI seems to have been in the right place with plenty of TEP WSPR spots exchanged with FR1GZ at 8981km.

One more day on 6m

For the last few days I have been patiently trying to find some TEP-Es on 6m WSPR, to no avail. Although 6m TEP (trans-equatorial propagation) is being reported in Israel, Italy, the Balearics and Morocco, here in the UK all remains quiet. I have only spotted a couple of G stations at around 70km - absolutely nothing else!

Although I shall try again tomorrow, that will probably be my last day. A pity as I was quite hoping we might get an Es opening to link up to some TEP, but it looks unlikely now that I shall be in luck.

Later this week I may return to VLF earth-mode if I can optimise my TX earth-electrode match at 8.97kHz and re set-up my RX loop. My wife will have to drive me to my usual test sites as I am not allowed to drive yet.

6m Trans-equatorial propagation (TEP) - update

Again today, Israel, Morocco and Italy have been enjoying TEP propagation deep into the Southern Hemisphere on 6m. In vain, I've been on 6m too hoping that some early Es might link me into the 6m TEP propagation areas. Up to now I have had no luck at all, copying just G6AVK and G3XGS only on 6m WSPR at around 70km.

Here is another TEP article: http://www.qsl.net/vk2kfj/tep.html . This states that TEP can occur up to at least 432MHz.  I'd settle for a little at 50MHz!