Topband: WD1 and WD1A wire

[Bruce]

Army field manual,   FM 24-20 "Field wire & field cable techniques" has 
WD1/TT as 4 tined copper, and 3 galvanized steel strands.

73
Bruce-K1FZ
www.qsl.net/k1fz/bogantennanotes/index.html







----- Original Message ----- 
From: "HAROLD SMITH JR" <w0rihps at sbcglobal.net>
To: "Craig Clark" <jcclark at myfairpoint.net>; <topband at contesting.com>
Sent: Friday, August 30, 2013 11:59 AM
Subject: Re: Topband: WD1 and WD1A wire


> Craig,
>
> When I was in the Army in the late 50s, We used WD1TTwhich sounds like
> WD1. I see that someone has it on eBay.
>
> 73..Price W0RI
>
>
>
> These are two different kinds of wire.
>
> WD1 is designed for the old tip and ring phone systems of the 40's-60's 
> and
> consists of two twisted seven conductor wires, three galvanized steel and
> four tinned copper conductors.
>
> WD1A came out in the 70's and is smaller and joined together like zip 
> cord.
> It has the same conductor combination as WD1.
>
> They also have different impedances so their feedline matching is 
> different.
>
> Craig
>
>
> Craig Clark K1QX
> QX Electronics
> PO Box 209
> 107 Fitzgerald Rd
> Rindge NH 03461
> (603) 899-6103 office
> (603) 520 6577 cell
>
>
>
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