Kevin et all
(follow up to a post earlier this week)
I am in the process of building some RG6 BOG's ( where the "antenna" and
the feed line are both RG6) and happen have a brand new 500' role of
Southwire RG6 type CM/CL . 18ga copper clad steel center conductor 100%
Aluminum foil/60% aluminum braid
I measured the loss with a 75ohm load and 33ohm load (~2:1vswr) with the
following results
75 ohm load 4.5db (.9db/100 feet)
33 ohm load 8db loss (1.6db/100 feet)
This is about as cheap as it gets at $40/500ft or $.08/foot. This was
purchased at my local big box builder supply
Equipment used : HP E4433B generator and Boonton 92A RF Voltmeter
Dave
NR1DX
PS: so far the Bogs are working quite well but still tweaking, full
report when I am done
PPS: if you want loss numbers for other frequencies (80 & 40) drop me a
private email
On 9/19/2019 3:15 PM, Kevin Shea wrote:
Dave,
The run to the feedpoint of the beverage is about 600' The beverage
antenna itself will be coax and that will be about 800'.
Kevin, N9JKP
On Thursday 19 September 2019, 10:25:04 CDT, Artek Manuals
<Manuals@ArtekManuals.com> wrote:
Kevin
How long a run we talking here?
Dave
NR1DX
On 9/19/2019 11:17 AM, Kevin Shea via Topband wrote:
> I have read that the skin effect at 2 MHz may be deeper than the
copper coating on a copper covered steel inner conductor of most RG6
cables. Thus, as I plan for long cable runs back from my (to be
installed) Beverages I am thinking I need either solid copper, solid
aluminum,. or copper covered aluminum for my RG6 coax. So the question
is am I wrong in this understanding?
> Also, does the shield matter? It's not very thick so does a foil
and 60% aluminum shield do the job? Or should I be looking at a foil
and 95 percent copper shield like the Belden 1694.
> I know it may not be too material but I want to make an informed
decision.
> Thanks! and
> 73,
> Kevin, N9JKP
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