[TowerTalk] Power x RG58

[PT2HO - Carlos]

Ron,

The  ARRL Antenna Book - page 24-18 (edition from 1995) says:

"In general, full legal amateur power can be safely applied to inexpensive
RG-58 coax in the bands below 10MHZ. Cables of RG8 family can withstand
full amateur power through the VHF spectrum, but connectors must be
carefully chosen in these applications...."

It looks that the power capabilities varies a  lot when the frequency
changes......As I am changing the cables I had the curiosity to check in
the Antenna Book the power capabilities of each cable family....

I will try to check another source like ON4UN's book...The RG58 looks so
weak to handle 1500w, doesn't it??

73,

Carlos 
PT2HO (also PY1CAS)
----------
> De: Ron Youvan <ka4inm@gate.net>
> Para: PT2HO - Carlos <pt2ho@contesting.com>; Tower Talk
<towertalk@contesting.com>
> Assunto: Re: [TowerTalk] Power x RG58
> Data: Domingo, 8 de Novembro de 1998 08:22
> 
> 
> Hi:
> snip
> The ARRL Antenna Book says that the inexpensive RG58 can easily handle
full
> legal limit (1500w) on frequencies below 10mhz.
> snip
>   Did it say that a moderate reflected power would melt it?
> Search the internet and books (whatever those are)
> for the ratings if someone doesn't supply them here,
> but it is not `safe' to use RG-58/U with over about
> 200 watts, people make mistakes and things change,
> only use power levels that your line will handle into
> mis-matches.  (I know I didn't answer the question)
> BTW RG58/U is rated at 14 watts at 450 MHz, but
> Motorola uses with 75 es 100 watt radioes, I don't.
> 
>      73  de Ron ka4inm@qsl.net    Best Regards
>   VISIT my HAM WEB SITE at: http://www.qsl.net/ka4inm/
> 
> 
> 
> 
> 
> 
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