Coastguardjohn and any other interested members - look at this......
It is 0730 and pouring with rain, reception is down and yet I have currently on my flights screen over 60 flights on a 10 second time out - this is more than I have been able to get at Peak Times in the past. A comparable figure yesterday for the same time with better conditions would be 25.
So a massive improvement which begs a big question - what's changed?
Well, firstly new hardware with a v2 box and a slightly different aerial - seems to have a smaller magnetic base (or a touch larger plate) and is slightly bent because of the way it was packed. It may have been that my older box was malfunctioning from day one but I doubt that - the problem I had with the aerial input was sudden and terminal. So is the 2009 v2 box more sensitive?
I assume the software is the same? I can't see anything different on screen. The position of the aerial is the same with no extension cabling and the radar box is sited in more or less the same place
The big change seems to be that the new box will not operate with ANY of my USB extensions, either singly or in combination, whereas the old one would. However by using purely the supplied USB lead, the results are simply stunning.
Considering the comments by Airnav Support (above) and my own experiences this would seem to suggest that the performance is VERY SENSITIVE to the the length (and siting?) of the USB cable. We know about aerial signal losses but this is NOT a factor here.
Propogation conditions could of course play a part - unlikely but if this turns out to be the case, I will post accordingly.
Conclusion? for me a clean, clinical and unenhanced out-of-the-box set up has to be the way to go. Certainly performance in this basic way far exceeds anything I achieved by going higher, longer, further etc.. I have my fingers crossed and am changing nothing!!!
I hope this helps.
[Still think you need to re-spec. the aerial connector Airnav :)]