Decca 5501 mod -
I think I recall that the late G3AQC, maybe others had a clever way of installing mods allowing it to be "switched" between 137 and 500 - if anyone has any details Id like to hear or see them - with thanks.
Conditions -
Well - its been a very poor LF season up here to date - with only a couple of Eu openings, obviously my stars havent been aligned, or moreover the Coronal holes have been. At least the nights are getting shorter
- HF conditions are very poor too at this time. Still its good X country skiing weather and the Aurora are pretty.
VLF
If anyone wants to spark up on 8970Hz again from Eu Im looking at slow QRSS's and shoving the results out on the web site.
The s/n noise is now vastly improved down there too using the E field L400B.
QRM
I spent yesterday after noon with our local power utility linesman tracking down a noise source(s) pulsing away at 9Khz prf from 50kHz to 5MHz - traced one to a house about 0.4 miles from here, and I have a second one with the same sort of signature which is proving more difficult to DF. I havent approached the owners yet, but heck sitting outside the offenders house on the road in the car with the SDRIQ and another L400B magmount the pulses were stronger than local NDB and some MW broadcast signals and a huge amount being re radiated from the underground power lines - so you can imagine something fairly meaty shoving out this do doo, especially as I can hear the same signatures (but maybe not the same source) on overhead HT power lines some 5 miles away - Im guessing home automation, but it might be a wayward lighting switch or blender :-) . If your interested theres a visual capture of the interference source covering the MF band at
http://kl7uk.com/Screen7.png
or on WSPR water fall
http://kl7uk.com/MEA1.png
Cheers
Laurence KL 1 X WE2 XPQ
