[Elecraft] What is "good quality coax"

Tue Jun 10 11:28:03 2003

You may want to take a look at the coax loss charts on the handbooks and/or
at Davis RF,  http://www.davisrf.com/ham1/coax.htm#attenuation. Then based
on the length of your run and freq, you can get an idea how much loss you
will have with the different types of coax.

Tony
Tony
N2TK
#3481

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Edward Kenworthy
Sent: Tuesday, June 10, 2003 10:34
To: [email protected]; [email protected]
Subject: Re: [Elecraft] What is "good quality coax"

If it's cheap it probably isn't good quality :-)

Good quality coax aka "low-loss" is noticeably thicker than the cheap stuff,
has a multi-strand core, good, thick shielding and thick insulation. An
example of low loss coax is RG-213.

Edward

On 10/6/03 12:29 pm, "[email protected]"
<[email protected]> wrote:

> Hi guys, firstly thanks to all the folk who replied to my query on end fed
> antenna grounding. Very useful tips.
>
> I see many references to "good quality coax" including in the KAT1
> instruction manual. I'm not sure how to tell "good quality" from the
> "rubbish". I have a pile of RG58, 5mm OD stuff that is cheap (got mine
from
> Electrovalue in UK). Is this good enough for QRP on 40-15m? . The 213 coax
> is much bigger, heavier and expensive.  If I use RG58 and provided I don't
> have long lengths with high SWR I don't think I shouldn't have big losses
> (I am putting up a 40m dipole). Some coax in the UK is advertised as
> "military spec" presumably this is better but in what way?
>
> Any thoughts. Thanks again for this terrific source of advice, it's great
> for beginners like me.
>
> Martin
> M0KWV
> K1/K1-4 #1534
>
>
>
> Why not take a look at our Web site?
> http://www.simoncarves.com
>
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