Thanks Mal - you can stick with your verticals up there and if I had the environment Id be running them too - but well the loop really is the only operable, effective and relatively safe solution here in the Birch and Spruce forests (if youve seen the (very odd and not Wolf friendly) film "the Grey" - youll know the type of forest this is. Or take a look at
http://www.youtube.com/watch?v=-2kXezEIIQo which the planes fly over my place at less than 200ft - you can see the tree issue
The big loop which is "pointing" towards Eu and ZL (sorry Americas) is just slightly worse s/n than the K9AY (0.5db) and about 1dB poorer than the L400B probe on rx - all to do with power lines and local line noise plus what every our friends up the road at HAARP are frying tonight. The probe is effectively up 60ft on a frozen Spruce over a now frozen no so freshwater lake.
The Ashlock loop is very benign and behaves itself and doesnt need a radial system and physically is self tensioning - its tuning is very sharp - if you tune across resonance with the rx on SSB it sounds like a 1.5KHz bandpass filter with the low and high end frequencies roll-in and outs' - Tells me its working pretty well and reasonable Q - of course the Decca really helps as its basically self protecting on fault conditions - a saving grace.
Laurence
From:
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[email protected]Date: Tue, 23 Oct 2012 09:05:17 +0000
Subject: LF: Re: Heating up Brass question
Laurence
Avoid such problems on LF/MF by using a
vertical system like an inv L etc. Loops do not attract me because of the
problems associated with high currents as you have stated 65 Amps !! One USA
station some time back running QRO was talking about 90 Amps
Big resonated loops are great for Receiving in the
chosen direction but I leave them alone for Transmitting
On the higher frequencies one wave length loops for
the desired frequency are a different story.
De malg3kev
----- Original Message -----
Sent: Monday, October 22, 2012 11:09
PM
Subject: LF: Heating
