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  • Goodbye Blog.co.uk

    So its all coming to an end. Blog.co.uk has been a good Blog host for many years despite letting in the Spammers as members to advertise on our Blogs a little too often, and deleting one of my Blogs completely without notice or comment.
    No doubt it was deleted because I used words and phrases typical of Spammers and Scammers.

    OF COURSE I DID you fools the Blog was titled BadBlogger and was anti Spam and anti Scam and gave warning of the activities of the bad boys who came on here, plus a few laughs about the young ladies who's photographs I was sent. Very attractive ladies indeed but why did different named ladies have the exact same photo, and a different Minister of the blessed US$ who was kindly helping her out of her dire situations, those poor girls went through hell, losing whole families in car crashes civil war and airplane disasters.
    Two girls lost their entire families and very rich fathers in crashes on the same stretch of road but traveling in opposite directions, a terrible tragic coincidence.

    It is a wonder there are any rich Industrialists, Politicians and Bankers left in the country the death toll due to accidents is huge.

    I must say that despite all the money I sent to Nigeria, not one of those girls showed up to display to me all the love she professed. Do you think I was just being used.

    Anyway, I have only used the free service and can't complain, apart from the work involved in moving the archive elsewhere, which is :-

    g3zjoradio.wordpress.com

  • 70MHz 4m Sporadic E and lesser events

    For several years I have looked at 4m in the Es season. An ideal tool for examining propagation is none other than WSPR. What other mode would give me instant proper reports today during some antenna improvements I was making. I am using a simple 1/2 wave dipole home made and mounted in my loft. Go on ask the question, I bet it has gone through all our minds, "what is a 1/2 wave at 4m"? 2m you fool.

    Today conditions were pretty flat and some of the regular TX stations were not around it seems, luckily M0NKA had left his WSPR capture running so when I raised the dipole as high as I could and re orientated it slightly I saw a 3 to 5dB increase is signal.

    Additionally I had Spots from other usual spasmodically possible stations and one new Spot G6HSM at 172Km all with a genuine 5Watts except for G0MJI who needed 10W to get a Spot today but then he is 8Km further :D

    It is a pity there are not more stations willing to give 4m WSPR a try, it may be the lack of stations but it has always appeared to me that 4m is not influenced as much by Aircraft Scatter as 6m or 2m.
    I have never used DX Clusters etc. 'cheat lists' to get my contacts and idea of conditions, shame there are not more active beacons on 4m. WSPR does the job of indicating the propagation from my QTH, for me. I hate the modern lack of SSB activity on the VHF bands until there is an opening then all the bellowers, some with affected procedure come up en mass and its dog eat dog and no one wants to work a fellow G station. When the band closes, off they go until someone blows the whistle again.

    How many stations I wonder have been intimidated into not daring to use WSPR on 6m and up due to not wishing to be seen in "the wrong trousers". Its such a pity that those who don't understand are the most vocal, making statements about how much Doppler there will be on a 6Hz wide signal which must cause trouble. Fact is Aircraft Scatter does not generally have an adverse effect on WSPR. Aircraft Scatter can be made use of in a technical controlled manner using WSPR or Opera and there will always be fortuitous coincidental Scatter which produces results for minimally equipped stations.

    Those who do not understand, need to understand that they must stop thinking in terms of AirScout for WSPR Scatter. I have nothing against AirScout for the purpose it is intended, which is not WSPR, the very mention shows that the penny has not dropped for them, yet they set themselves up as expert commentators. One has to smile.

  • Six Meters Oscar Speech

    Last things first.

    A capture from the North East. As I was swinging my beam I heard what sounded like a Meteor Ping, they are distinctive things, then another and another and a shower ? on the trace they look fairly evenly spaced but they definitely were not, coming in two's at times.

    Well here is the Capture. Right Clicking and selecting View Image will show a SpecLab image also.

    The signal at 15:52 is G0OQK, I am not sure who I turned away from at 15:50 the signal continued merely as pings, then OQK provided the signal for reflections.

    Now for the Oscars speech. Tears in eyes, "I would like to thank G8EPQ for just being there for me". I have struggled with having a reliable local signal for observations and EPQ couldn't be better placed, the flightpath routing from, or past Heathrow and to Birmingham International, East Midlands or the USA is often dead in line with us.
    It would be better if he was running 100% TX cycle but hey beggars can't be choosers.
    Every observation session brings something interesting from Aircraft Scatter and proof of phenomena.

    Its almost as if the Air Traffic Controllers know we are here. I am not listening so we have to fantasise. B49 London to Seattle got it a bit wrong. 'BA49 overhead Bletchley turn Left 10 degrees' ........ 'BA49 West of Newport Pagnell turn Left a further 10 degrees' ....... 'BA49 that's better you are bang on track now'.

    The flight was doing 407kt when it passed between us, G3ZJO to G8EPQ distance 24Km. In the 110 seconds WSPR Frame it traveled 24.51Km. The Aircraft didn't get on track until after half way through, the WSPR report averages the signal level across the whole period, the enhancement is only 2dB on my Vertical Antenna but its there and its so nice to see a practical demonstration.

    The path G8EPQ to G3ZJO from the WSPR.net Map

    Right Click
    and select View Image for full view

    The BA49 Flight Path

    Right Click
    and select View Image for full view

    The Signal

    Right Click
    and select View Image for full view

    The WSPR report at 15:12 with before and after reports.

    Right Click
    and select View Image for full view

  • 6m WSPR Wing Tip Vortex Reflections

    Below is a capture of G8EPQ's signal on 6m complete with what would be claimed as a Wing Tip Vortex Reflection.

    Picture is large please RIGHT CLICK and select VIEW IMAGE to see all. Don't forget to to click Go Back on your browser after, we don't want to lose you.

    Look at the signal strength reported by WSPR Software. The magic +12dB OVERLOAD the signal level seen on most WTV claims.

    If WTV's were a reality then the next Capture of the same signal would show at least a trace.

    Picture is large please RIGHT CLICK and select VIEW IMAGE to see all. Don't forget to to click Go Back on your browser after, we don't want to lose you.

    It will be of interest to some knowing my love of the IC706 that the Capture showing no false image if from my IC706. The signal level is lower being from a vertical antenna.

    The Capture with the inter-modulation product is from my FT897. The signal level is much greater being from my 4 element beam.

    I have however today made a Capture of my IC706 putting out a typical double sided spike on transmit so the love hate relationship is still going strong.

    Oh and who hasn't heard their IC706 screeching and scrawbling (technical term) after the tones from the WSPR Software stop and before the PTT drops. Oh sorry, most Hams, because they don't ever listen to their own signal.
    In the top capture at 10:30 can be seen a full 2 minutes of scrawbling, I saw this for several transmission and wondered if it was due to me turning my beam so causing overload of the FT897 when the IC706 transmitted.
    No the IC706 was no longer outputting a signal, why, well I had set the TX tone in WSPRX to 1573Hz to move up the band. For some reason after a time the setting had reset itself not to 1500Hz but to 2 Hz. A similar situation to no audio but PTT pressed.
    I don't think there was much RF radiated but if you heard scrawbling, blame Icom and JT it weren't me Mr.

  • Six Meters WSPR Aircraft Reflections

    This morning I Spotted M0YOU on 6m WSPR, nothing outstanding about that. However I often lurk on 6m and 2m to look for anomalous Doppler reflections from Aircraft. Interpretation of what is seen is an interesting side to Amateur Radio.
    Accurate interpretations are essential rather than producing outlandish theory to try and fit some false science.

    Here is a Grab of the signal from M0YOU.

    Note the 3 curves LF of the signal. I think these are double reflected signal from Airliners of the reflection from a Piper PA34-220T Seneca a private plane out of Oxford.
    This morning I e-mailed a local station to ask if he was going to be about for some observations on 2m WSPR as no doubt there would be some Glider activity today. He must be out as he didn't reply or his XYL wouldn't let him come out to play.

    I had just checked before the above Grab for Glider activity and noted several around Bedford. I looked at the path to M0YOU on WSPR.net

    Here is the signal path.

    Those Bedford Gliders can't be responsible unless they have moved, they hadn't. So was there another Glider on the path. No, but there was the Piper OXF43 he has been on a joyride to Kettering returning via Wellingborough and Milton Keynes. From there he heads South East and then pops up to do 3 circuits of Cranfield.

    Here is the situation after the event.

    In the signal Grab we see him on the South West turn of one of the 2 full circuits circuits which have a long side of approximately 10Km.
    Taking a typical maneuvering speed for the Piper, during the capture we see him cross the signal path make the turn cross again and fly up the Eastern side a total of some 7Km.
    Some will say that this defies 'gravity' as far as Doppler is concerned but it is not that simple.

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