[Scanner] Which Coax? Which mast?

Tue, 15 Apr 2003 23:53:22 -0400

why would you want to use coax that is 75 ohms??? when the normally used
coax is 50 ohms....  Are you going to use an impedance matching circuit,
etc...???  I think this will cause a big problem.... maybe i'm missing
something here....

Just my .02 cents

Jonathan

Jonathan D. Thawley                      ARS: KC8CPW, Extra Class
931 Elberon Ave                             ARMY MARS: AAR5MO
Salem, OH 44460-3570                   ARRL/VEC, W5YI/VEC, and W4VEC/VEC
E-mail: [email protected]                 WEB PAGE: http://www.qsl.net/kc8cpw
Age: 19

----- Original Message -----
From: "Phil Atchley" <[email protected]>
To: <[email protected]>
Sent: Tuesday, April 15, 2003 11:45 PM
Subject: [Scanner] Which Coax? Which mast?

> Hi.
> A friend is sending me a new RadioShack scanner antenna model 20-042,
> apparently the same as the "Scantenna" to use with my Yaesu VR-5000
> receiver. The antenna covers 30-1300MHz (it's about 7 feet tall).
>
> Any-who....  He is sending me about 65 feet of new RG-59 Coax to use with
it
> (the coax type specified for that model with F connectors).  I anticipate
> receiving this antenna by the weekend and putting it up this weekend
> (weather permitting).  A couple quick questions.
>
> 1.  Coax?  He's sending the RG-59, BUT I work part time at a TV shop doing
> stereo repairs.  I'm sure I can get quality (hopefully) RG-6 TV coax from
> the shop.  Is it that much better, particularly at a GHz or so than the
> RG-59?  I believe the impedance is the same.
>
> 2.  Mounting location.  I have two (actually have 4 here) different masts
> holding present antennas that I can put this sucker on. The one holding
the
> high end of the sloper is roughly 38 feet or so above ground (perhaps 26
> feet above my sheetmetal roof) at it's top and can probably go about
another
> 5 feet up, BUT would require at least 50 feet of coax to reach it.  The
top
> of the closer mast is only about 15 feet MAXIMUM above the roof but would
> only require a 20-25 foot run of coax!!   IS THE EXTRA 11-16 FEET OF
HEIGHT
> WORTH DOUBLING THE COAX LENGTH OVER??
>
> 73 de Phil  KO6BB
>
>
> avast! (VPS 4/15/2003): the message contains no virus
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>

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