[Scanner] Which Coax? Which mast?

[Phil Atchley]

Jonathan.
Good question.  The answer is that the antenna comes with a 300/75 Ohm balun
and 75 Ohm Coax (RG-59) with "F" connectors (TV) is specified for it.  So,
I'd say it was designed around that impedance and while 50 Ohm (RG-58) MIGHT
match the receiver you'd still have the mismatch at the antenna.  They may
have done that as I believe the UHF loss through RG-59 is less than it is
through RG-58 (I'd have to check the "tables" to be sure).

73 de Phil  KO6BB

> 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: kc8cpw@qsl.net                 WEB PAGE: http://www.qsl.net/kc8cpw
> Age: 19


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