Topband: Topband Digest, Vol 201, Issue 18

Sat Sep 21 15:18:02 EDT 2019

I use rg6 quad stuff on all my antennas takes a kw and more on 160 80 40 its cheap the connectors are cheap and hardly any loss at our freqs

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> On Sep 21, 2019, at 9:00 AM, topband-request at contesting.com wrote:
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> Today's Topics:
> 
>   1. Re: Coax for Top-band beverage antenna (Artek Manuals)
>   2. Re: Beverage coax (Mike Waters)
>   3. The band is alive (VE6WZ_Steve)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 20 Sep 2019 17:18:41 -0400
> From: Artek Manuals <Manuals at ArtekManuals.com>
> To: topband at contesting.com
> Subject: Re: Topband: Coax for Top-band beverage antenna
> Message-ID: <fcfa2610-832a-7cc3-69b9-d96a1d793410 at ArtekManuals.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
> 
> 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 at 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
>> 
>>> _________________
>>> Searchable Archives: http://www.contesting.com/_topband 
>> <http://www.contesting.com/_topband >- Topband Reflector
>> 
>> -- 
>> Dave
>> Manuals at ArtekManuals.com <mailto:Manuals at ArtekManuals.com>
>> www.ArtekManuals.com
>> 
>> 
>> ---
>> This email has been checked for viruses by Avast antivirus software.
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>> 
>> 
> 
> -- 
> Dave
> Manuals at ArtekManuals.com
> www.ArtekManuals.com
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Sat, 21 Sep 2019 09:41:31 -0500
> From: Mike Waters <mikewate at gmail.com>
> To: Jim Fielder <JFielder at twincitynetworks.com>
> Cc: "Steven R Daniel, D.D.S." <nn4t at comcast.net>,    topband
>    <topband at contesting.com>
> Subject: Re: Topband: Beverage coax
> Message-ID:
>    <CA+FxYXh6F1F3Epfv8h=ireo-WkkGDtbiB8HdE=ve5tyrKNGB+g at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> The flooded F6 I use for my Beverages has been chewed down to the center
> conductor in one spot for years. Didn't affect a thing. That's one of the
> things that flooded coax is for.
> 
> It is Commscope quad-shielded F-6 and with the inner foil bonded to the
> dielectric. Bought a 1000' spool of it from eBay. It lies on the ground
> next to a cattle fence.
> 
> "What, me worry?" ;-)
> 
> 73, Mike
> www.w0btu.com
> 
> On Thu, Sep 19, 2019, 2:31 PM Jim Fielder <JFielder at twincitynetworks.com>
> wrote:
> 
>> It is F6 and No it isn?t critter proof.  It has a desirable order
>> evidently.  Mine was destroyed by coyotes the first night after putting it
>> down with staples.  They chewed it in half in several places.   My runs
>> were about 300? each so I had to buy another spool.  Next install was up
>> high enough that they left it alone.  It is quality product if you can
>> protect it or don?t have the issues with Coyotes like I have.
>> 
>> Jim, KE0L
>> 
>>> On Sep 19, 2019, at 2:43 PM, Steven R Daniel, D.D.S. <nn4t at comcast.net>
>> wrote:
>>> 
>>> Good day all. I have used the DX Engineering F6. Available in bulk (can't
>>> remember if 1000 feet or 500) it works well and is well constructed. Have
>>> eight 530' antennas each fed with a run of that cable. It is not,
>> however,
>>> critter-proof! Steve, NN4T
>>> 
>> 
>> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Sat, 21 Sep 2019 08:56:06 -0600
> From: VE6WZ_Steve <ve6wz at shaw.ca>
> To: topband <topband at contesting.com>
> Subject: Topband: The band is alive
> Message-ID: <15F3EEEB-8215-4577-8FA8-C38DB756BC4F at shaw.ca>
> Content-Type: text/plain; charset=us-ascii
> 
> CW is alive and well on 160m!
> 
> This week 48 JA made it into the log, many of which are unique callsigns never worked before.  This morning Kevin VK6LW was louder than I have ever heard him, and Luke VK3HJ was copiable 45 min after SR.  Many JAs were a true 599.
> 
> Since Aug 15, 52 JA, 32 VK, 9 VK6, 3 DU and 7 HL QSOs have been logged on CW.
> 
> I suspect that part of the increase in CW callers is because many are lurking and waiting for the C21, but I am very happy to see so much CW activity from JA and VK.
> 
> A few weeks ago I did manage QSOs with PE5T, PA3FQA and DF2PY, so the polar path is opening up, but lately the QRN has been horrible in the evenings.
> 
> The art of CW has not been lost on 160m!
> CU all on TB this winter.
> 
> 73, de steve ve6wz
> 
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> ------------------------------
> 
> End of Topband Digest, Vol 201, Issue 18
> ****************************************