[Lowfer] TAG, WA in CT, no PI

[Bill Ashlock]

Mike,

>Did not use my e-field probe, just a 108 inch whip.

That whip appears electrically as 25 pf capacitor in series with the sign=
al feeding 50 ohms. Figuring a reactance of ~40kohms at 185k the loss is =
about 800X but there's a gain of about 3X when you account for 3 meters o=
f antenna. The total gain is about -48db. in uv/m to uv at the input. So =
a readable signal at 3 miles, something like 70uv/m, reduced to .26uv at =
the input to the receiver isn't that bad!  Although the FET follower used=
 in these probes has no voltage gain the power gain is very large due to =
the impedance transfer. All the voltage on a 3ft rod (~8pf series capacit=
ance), for example, is transferred to the next stage so the 800x loss fac=
tor disappears and the total gain might be more like 0db. Use a FET probe=
 next time. You will be impressed with your range!

> >Great map! You said the loop was pointing close to E/W about 2
> >weeks ago. This map has the loop pointing close to N/S!

>From my note of 10/29:

> >The plane of the loop is generally N-S (340 - 160 degrees)

>No change since then.

What about this posting later in the day on 10-29?

>>Will re-shoot the loop and tune before supper as I will be out this eve=
ning.

That may have been the move away from the garage and I thought it was the=
 direction change. Anyhow, I hope there are possibilities for an E/W orie=
ntation. Is the barn tall enough for a support line over the top?

BillGet more from the Web.  FREE MSN Explorer download : http://explorer.=
msn.com


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