[TowerTalk] Connector on 7/8 Heliax

Clay Autery KY5G at montac.com
Thu Aug 9 21:25:15 EDT 2018


Love those folks!!  Buy everything I can from there.

73,

______________________
Clay Autery, KY5G
(318) 518-1389

On 09-Aug-18 20:12, Jim wrote:
> I've always had good luck with Tessco over the last 25 years.
>
> 73
> Jim W7RY
>
>
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Doug
> Ronald
> Sent: Thursday, August 9, 2018 2:12 PM
> To: 'towertalk' <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Connector on 7/8 Heliax
> Importance: Low
>
> For anyone considering either of these two vendors for a jumper cable
> fabricator, I can give my feedback on their initial performance. After
> issuing a specification for my cable to both via email, I got a terse reply
> back from Tally. I then asked how to get the project going, and no response.
> Issuing the same spec to Tessco, they set me up with an account, and have
> promptly issued a quote, which I have accepted.
> The only downside to Tessco so far, is they were unable to perform a
> pressurized leakage test. I'll be anxious to see the finished jumper...
> -Doug Ronald, W6DSR
>
> -----Original Message-----
> From: Jim W7RY [mailto:jimw7ry at gmail.com]
> Sent: Tuesday, June 12, 2018 17:07
> To: Doug Ronald, W6DSR <Doug at DougRonald.com>; 'towertalk'
> <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Connector on 7/8 Heliax
>
> Tessco provides made up Heliax assemblies.
>
> www.tessco.com
>
> There is also Tally. www.tallycom.com
>
>
>
>
> Thanks
> 73
> Jim W7RY
>
>
> -----Original Message-----
> From: Doug Ronald, W6DSR
> Sent: Tuesday, June 12, 2018 6:50 PM
> To: 'towertalk'
> Subject: Re: [TowerTalk] Connector on 7/8 Heliax
>
> Air because the antenna's 1 5/8 EIA transmission line is pressurized. I
> already have the nitrogen setup for that outdoors at the antenna's base, but
> I can put the tank inside where it belongs if I have pressurized helix as
> well.
>
> Actually if I buy a ready-made cable, I'll have a 1 5/8 EIA flange on one
> end, and a 7/16 DIN into the shack on the other. Then I can get rid of the
> EIA-to-N adapter at the antenna base.
>
> We're just talking HF. The antenna is rated 3 -- 30 MHz. I want low loss
> transmission line to maintain my hard-fought noise figure at the upper end
> toward 30 MHz. Since I'm on solar power, I'll be lucky to even get 1500
> Watts out, but the EIA stuff is the way the antenna came, and I'm stuck with
> it.
>
> So you guys have any suggestions on a good place to pick for the
> transmission line? I see Commscope, maybe RFParts, Pasternack, but what
> others are out there?
>
> Thanks for responding,
> -Doug
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Jim
> W7RY
> Sent: Tuesday, June 12, 2018 03:54 PM
> To: towertalk <towertalk at contesting.com>; Steve Maki <lists at oakcom.org>
> Subject: Re: [TowerTalk] Connector on 7/8 Heliax
>
> My question as well.
>
> You WILL have to pressurize it.  How long a run at what frequency are we
> talking about here Doug?
>
>
>
> Thanks
> 73
> Jim W7RY
>
>
> -----Original Message-----
> From: Steve Maki
> Sent: Tuesday, June 12, 2018 5:08 PM
> To: towertalk
> Subject: Re: [TowerTalk] Connector on 7/8 Heliax
>
> Why are you leaning toward air cable? What's your application?
>
> -Steve K8LX
>
> On 06/12/18 16:42 PM, Doug Ronald, W6DSR wrote:
>
>> Well, okay, if I have to start from scratch, I'm looking at
>> Commscope's
>> HJ5-50 7/8" heliax or something equivalent. Since I'll be ordering a
>> custom setup, I might as well upgrade to 7/16 DIN connectors.
>>
>> So my new question is what vendor do the folks here recommend to make
>> up my custom cable?
>>
>> Thanks,
>> W6DSR
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