LF: Variation in my Rx signal reports on LF

[LineOne <dhchurch@lineone.net>]

If anyone noting my signal reports, WSPR in particular, is puzzled by 
large variations, this is because I am switching between aerials. Best 
results are on the main Tx aerial into my R5000 but, failing a suitable 
giant relay, I have to use experimental systems instead. Thanks to 
GW0NOS in particular I am able to compare results.
The latest aerial is a long ferrite rod with high-gain amplifier, end on 
loss is about 10dB. Due soon is a vertical strip in a tube, I understand 
height must be the main factor with these.
Hugh, M0DSZ