[Lf] [Fwd: [Lowfer] swamps and such]

[Andre' Kesteloot]

Bob Duckworth wrote:

> I agree on both counts.
> Full wave loop is the best and quietest on RX.
> Vertical plane.
> I especially like rectangular with 1/4 wave verts and 3/4 wave horizontals
> You should try that 160 loop on 80 with a 1/4 wave open wire feed to get
> the impedence down to a reasonably easy to match value.
>
> If no one is on LF from KH6, I'm relocating there in
> May 2002 and can put something up.
>
> As for marsh.
> T2 to East Africa on 75 phone with 35W and good copy
> from a biconical cage with 130 radials in a salt marsh in the
> middle of the Pacific. Got through on 160CW as well.
>
> -bob
>
> ----------
> | From: David Riley <daveaa1a at fastdial.net>
> | To: lowfer at qth.net
> | Subject: Re: [Lowfer] swamps and such
> | Date: Monday, September 25, 2000 1:22 PM
> |
> | The jury is in and the results are printed in FCC tables in the form of
> | ground conductivity curves.
> |
> | Salt Water is 5000 micromhos per meter conductivity and believe me you
> can
> | hear best out on the ocean by far.  Transmit too.
> |
> | Jungle and treed area is worse case.
> |
> | Rule of thumb:
> |
> | If you are on a salt water marsh like WBZ-AM or in Brant Rock where the
> | first radio voice broadcast took place in 1906 then a vertical with
> radials
> | is for you.  One way to beat poor soil is to make the radials 'resonant'.
> | This you may do by using insulated wire radials slightly shorter than a
> | quarter wave and 'loading' while watching RF current in that leg.
> |
> | If you are on a rock mountain or useless conductivity soil like sand then
> | think about using a loop or balanced antenna.  KDKA-AM Pittsburgh uses a
> | 'Franklin' which amounts to a center fed half wave up in Allison Park on
> the
> | rocks.  I use full wave loops on 160 and 80 and hav'nt seen a better
> | performer in 50 years.  ( more quiet on receive too )
> |
> | Alas it is true,  I=E/R   evan at A.C.
> |
> | 73s de Dave - 1A
> |
> | * Whats up for this season???
> |
> | ----- Original Message -----
> | From: "Pierre Thomson" <pthomson at bruderhof.com>
> | To: <lowfer at qth.net>
> | Sent: Monday, September 25, 2000 8:00 AM
> | Subject: [Lowfer] swamps and such
> |
> |
> | > Hi Mike,
> | >
> | > I used to wonder the same; it seems like AM broadcast stations are
> |
> |
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