Category Archives: FM

Sporadic E Season

It’s the Sporadic E (http://en.wikipedia.org/wiki/Sporadic_E_propagation) season at the moment. The season in the northern hemisphere is generally accepted to start 1 May and finish 31 August. However it possible to hear Sp E in April and (more rarely) other months. However this four-month summer season is generally accepted to be “The” season.

This year in the UK it started quite slowly and you had the usual culprits on Skywaves bemoaning the awful season – some people just don’t understand the meaning of sporadic I guess. However that all changed the last couple of days with a sustained opening to Eastern Europe Monday 2 June and a smaller Scandinavian focused opening 3 June.  The previous 3-4 years I have wasted too much time doing Band I Tv dxing. My urban location in the London ‘burbs mean that there’s an awful load of muck in the video passband and getting good video is practically impossible (i.e. I have a S9 baby monitor on 49.850 Mhz and various carriers, data signals etc).

So this year I decided to focus on getting my 6m scores up. I like to set targets in my dxing and this season I determined I should reach 50 DXCC on 6m and 200 locator squares. Thanks to this superb opening I am now at 54 DXCC and 199 squares – new countries worked on 6m include SV9 Crete, EA8 Canary islands and ZA Albania.

Given the complete lack of F2 propagation on 6m this sunspot cycle high (sic) I think a final target of 60 DXCC and 250 squares on 6m should be achievable with 3-4 years.  For 6m I use my Icom 7600 into a Sandpiper 3 element up at about 10m on the Tennamast or the Diamond V2000 triband co-linear- the beam being far superior of course.

I could not quite resist doing a bit of TV and OIRT dxing. The morning of 3 June saw some very strong Band I TV carriers – I view the audio output from my AOR AR5000 into Spectrum Lab on the PC. So i fired up the separate PC I use for TX dxing – this has a flyvideo 3000 card inside with the saa7134 chip. I feed my HS Pubs  VF1004 4 element (45-70 MHz) into a 4-way tv distribution amplifier from Maplin (brand NIKKAI). One output goes to the AR5000, another to the Sony XDR (see below), the third to my JVC 610 tv and the fourth to the HS Pubs D100 narrow bandwidth converter whose output is fed into the Flyvideo TV card. I then use dscaler and freerun to view on the PC.  So this morning I was watching Ukrainian 1+1 TV on channel R1 on the JVC, 1+1 on channel R2 on the PC, listening to OIRT stations on the Sony XDR and monitoring TV carriers in Spectrum Lab.

After doing the Konrad GTK mod on the Sony XDR it can now tune the OIRT frequencies where its performance is not too bad at all though I do get images from the strong BBC Band II stations. You can see my OIRT loggings at http://www.fmlist.org/fm_logmap.php?datum=2014-06-03&omid=2121

As I mentioned it’s very hard to get decent TV DX video here – despite the S9 signals. However i did make three small videos:

Ukraine 1+1 R1

Ukraine 1+1 R2

 

Tropo in Carcassonne

A bit of tropo in Carcassonne afternoon of 02 October 2013 . Duct was very narrowly focused to the SE across the Med to Sardinia. Video shows how RAI Radio 2 95.3 MHz from Tempio Pausania/Monte Limbara was sounding (and looking) on the Perseus FM+ with Triax FM5 at 125 degrees.

All the stations logged yesterday afternoon can be seen at http://www.fmlist.org/fm_logmap.php?datum=2013-10-02&omid=3154
The Catalan stations are in virtually all the time wheras the Sardinians were tropo enhancement. Interesting to see the Catalan path just to east of where Pyrenees really start and to the west of the Alberes range.,

Incredible Signal Strengths

During yesterday’s tropo lift there were some incredible signal strengths – particularly from Belgian stations. Video below shows how RTBF’s Classic 21 was coming into London like a local.

The tropo was very narrowly defined as can be seen by my log on FMLIST. I did try beaming at 70 degrees but there was no duct to The Netherlands.

http://www.fmlist.org/fm_logmap.php?datum=2013-09-28&omid=2121

 

 

 

Superb Tropo

Last couple of days (Monday and Tuesday 23/24 September 2013) have seen some superb tropo condtions in London. I’ve mainly focused on band II dxing with my modded Sony XDR-HD and Triax FM7 (FM8 without front reflector 🙁 ) at about 9m AGL on a cheap rotator though I was beaming at 120 degrees for 90% of the time.

I used the superb FMLIST both to identify stations (or more accurately their probable locations) and also to log my catches. FMLIST offers a graphical representation of your online logbook and mine can be seen here: http://www.fmlist.org/fm_logmap.php?datum=2013-09-23&omid=2121 I think most of the tropo duct was to my SE though I did occaisonally move the beam to 180 degrees as you can see.

Highlights include Hitradio Ö3 in Salzburg (1055 km from home QTH), Antenne Bayern from Hochries (1002 km) and SRF 1 and 3 from Säntis (851 km) in Switzerland.