From: Dauth Chris

To: Vicary Mike

Subject: TYN013 and TYN014 DHEM

Date: Friday, 10 January 1997 16:09



Mike



Yes I did have a typo in the original loop co-ordinates sent

previously. All loops should be 400m x 400m.



Corrected:

TYN013

Tx1	380750mE, 5354600mN Top left

	381150mE, 5354600mN Top right

	381150mE, 5354200mN Bottom right

	380750mE, 5354200mN Bottom left

Tx2	381150mE, 5354600mN Top left

	381550mE, 5354600mN Top right

	381550mE, 5354200mN Bottom right

	381150mE, 5354200mN Bottom left



TYN014

Tx1	380650mE, 5353800mN Top left

	381050mE, 5353800mN Top right

	381050mE, 5353400mN Bottom right

	380650mE, 5353400mN Bottom left

Tx2	381050mE, 5353800mN Top left

	381450mE, 5353800mN Top right

	381450mE, 5353400mN Bottom left

	381050mE, 5353400mN Bottom right



I was unaware that 381000mE was the tenement boundary. Tx1 positions

for both TYN013 and TYN014 must overlap onto Aberfoyles ground. I

regard these loop positions as being critical for testing the "target

horizon". Transmitter loop positions Tx2 which lie on RGC ground do

not couple well with the defined "target horizons" and have only been

designed to test for conductors of a different orientation. It will

be absolutely necessary to position the loops on Aberfoyles ground.



Cheers

Chris	 