I was contacted by Paul Glover who lives in Worthing West Sussex and is using a…
WeSaCom APT-06 APT receiver
Fed by signals from a…
KX-137 active VHF turnstile antenna
… which as can be seen from the photo above is not mounted on a huge mast with a perfectly clear view of the horizon. This equipment was bought just over a year ago from Wraase Electronics of Altenholz Germany. This setup had been working very well until recently when some images were marred by reduced quality and some narrow herringbone lines running at about a 10 degree angle across and down parts of the image. Paul had tried an uninstall and reinstall of WXtoIMG which he found apparently worked a few times but then no longer had any effect.
I was unable to offer any concrete suggestions beyond some local noise source but doubted the fault lay with WXtoIMG.
Paul got back to me to say he had isolated the problem to the soundcard and was temporarily using an alternate PC. He has been kind enough to offer his latest images for use on DigitalHam. They show just what can be achieved when there is no pager interference. Quite apart from that though they show virtually no low elevation noise (top and bottom of image clear) so obviously his antenna and radio are working better than mine too – I suspect that the masthead preamp in the KX-137 must take much of the credit here. Given the pager noise I won’t be making alterations to my own setup until I have more time on my hands when I’ll initially have a go at making a notch filter to zap that pesky pager tower.
Click the thumbnails to see the full sized image.
I’ve had a fair amount of correspondence with Paul and now DigitalHam is running WordPress I’ve
added much of it as Comments to this page.
Never underestimate the power of a small tactical nuclear weapon.