Topband: Zo of an individual CAT5 twisted pair

Bruce k1fz at myfairpoint.net
Mon Aug 12 16:42:17 EDT 2013




I am using a twisted  pair, with shield,  that is near  55 ohm impedance for
 my receiving delta loop. The cable is designed for audio,  but looks good 
up
 to 10 MHZ. The KB-5 antenna end transformer has an isolated output. At the
 shack end I wound a transformer with a balanced center tapped winding to an
 unbalanced winding for  my transceiver.  The center tap is for the shield.
 The center tap is floating at the antenna end. It is working well so far. 
See Pennant notes for more
 info.   www.qsl.net/k1fz/pennantnotes.html

73
Bruce-K1FZ



 ----- Original Message ----- 
> From: <w7dra at juno.com>
> To: <topband at contesting.com>
> Sent: Monday, August 12, 2013 10:11 AM
> Subject: Re: Topband: Zo of an individual CAT5 twisted pair
>
>
>
> you fellers dont know what to use CAT5 for, out here in the west we use
> it to tie down our pickup loads.............easy to tie, bends well and
> is almost indestructible.
>
> mike w7dra          still using an NC183 on topband



More information about the Topband mailing list