[K3PZN-List] RE: K3PZN-List Digest, Vol 19, Issue 7

[Michael Fisher]

Bill (and others wanting to know the stats),
Universal Radio has a link on their website that has some info you may be 
asking about.

www.universal-radio.com/catalog/cable/coaxperf.html

Mike F      N3VOP


>From: k3pzn-list-request at mailman.qth.net
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>To: k3pzn-list at mailman.qth.net
>Subject: K3PZN-List Digest, Vol 19, Issue 7
>Date: Sat, 20 Aug 2005 04:00:50 -0400 (EDT)
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>Today's Topics:
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>    1. Quick Question (Neeriemer, Bill (NIH/NLM/LHC))
>    2. Re: Quick Question (Curt Milton)
>    3. Re: Quick Question (Keith Krichinsky)
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>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Fri, 19 Aug 2005 09:48:03 -0400
>From: "Neeriemer, Bill (NIH/NLM/LHC)" <bneeriemer at mail.nih.gov>
>Subject: [K3PZN-List] Quick Question
>To: 'Carroll County Amateur Radio Club' <k3pzn-list at mailman.qth.net>
>Message-ID:
>	<C761DBF11F04AE4CB11521B0DF7F65360AA814E0 at nihexchange28.nih.gov>
>Content-Type: text/plain
>
>I can never remember this factoid:
>
>As frequency increases, thin coax loss increases, and so you should use
>thick coax.
>
>Right???
>
>73 Bill W3STG
>
>
>
>
>
>------------------------------
>
>Message: 2
>Date: Fri, 19 Aug 2005 07:15:50 -0700 (PDT)
>From: Curt Milton <wb8yyy at yahoo.com>
>Subject: Re: [K3PZN-List] Quick Question
>To: Carroll County Amateur Radio Club <k3pzn-list at mailman.qth.net>
>Message-ID: <20050819141550.281.qmail at web53908.mail.yahoo.com>
>Content-Type: text/plain; charset=iso-8859-1
>
>Very brief answer - it depends!
>
>Two factors.
>
>1. need to consider coax loss versus frequency.  yes
>often the larger diameter coax has lower loss, but ...
>
>2. at high enough frequencies the coax will no longer
>behave as coax, meaning it will have higher order
>modes.  i dont know how high you are going in
>frequency.
>
>coax cable parameters will give info on loss vs. freq,
>and highest useful frequency.  another aspect to watch
>out for is power handling.  if you are at a total loss
>where to find coax data, let the list know what you
>are looking for.
>
>73, curt
>
>
>--- "Neeriemer, Bill (NIH/NLM/LHC)"
><bneeriemer at mail.nih.gov> wrote:
>
> > I can never remember this factoid:
> >
> > As frequency increases, thin coax loss increases,
> > and so you should use
> > thick coax.
> >
> > Right???
> >
> > 73 Bill W3STG
> >
> >
> >
> >
>-----------------------------------------------------
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> > the FTC.
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> > County Amateur Radio Club
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>------------------------------
>
>Message: 3
>Date: Fri, 19 Aug 2005 13:57:34 +0000 GMT
>From: "Keith Krichinsky" <w3mdc at tmo.blackberry.net>
>Subject: Re: [K3PZN-List] Quick Question
>To: "Carroll County Amateur Radio Club" <k3pzn-list at mailman.qth.net>
>Message-ID:
>	<960675523-1124459867-cardhu_blackberry.rim.net-21702- at engine132>
>Content-Type: text/plain
>
>Freq and distance!
>-----Original Message-----
>From: "Neeriemer, Bill (NIH/NLM/LHC)" <bneeriemer at mail.nih.gov>
>Date: Fri, 19 Aug 2005 09:48:03
>To:"'Carroll County Amateur Radio Club'" <k3pzn-list at mailman.qth.net>
>Subject: [K3PZN-List] Quick Question
>
>I can never remember this factoid:
>
>As frequency increases, thin coax loss increases, and so you should use
>thick coax.
>
>Right???
>
>73 Bill W3STG
>
>
>
>----------------------------------------------------- BREAK 
>-----------------------------------------------
>Next CCARC meeting Monday September 12, 7:30 PM at the FTC.
>_______
>K3PZN-List mailing list supporting the Carroll County Amateur Radio Club
>K3PZN-List at mailman.qth.net
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>Sent wirelessly via BlackBerry from T-Mobile.
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>End of K3PZN-List Digest, Vol 19, Issue 7
>*****************************************