For me 1dB loss is huge but everyone had their own criteria. For cable
leads that flex, I use Belden 8267. I have no experience with the DXE
cable.
GL,
John KK9A
On 2016-08-31 10:24, Julio Peralta wrote:
> Thanks for the comments.
>
> Because more than 100 feet of the 270 foot run will be up a crank up tower I
> don't think the loss savings in 150 feet of hard line which I think will be
> less than 1dB is worth the extra cost and trouble. I currently run the coax
> from the operating position over the roof to the tower which is the shortest
> route. I would probably have to run the hardline on the ground all the way
> around the house which would almost double the length of the run to reach
> the tower. Not worth the cost and problems in my opinion.
>
> What I was really asking was if anyone had any experience with the DXE
> 400MAX cable since it cost less and has the same specs as most of the other
> LMR-400 type cables. However no one has responded with any comments either
> positive or negative about 400MAX.
>
> Nor has anyone commented on the availability of replacement sheaves for UST
> crank-ups.
>
> Julio, W4HY
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
> john@kk9a.com
> Sent: Wednesday, August 31, 2016 8:29 AM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Questions
>
> I concur that using the same cable from the radio to the antenna 270 feet
> away is a poor choice. Some cables are flexible and some have lower losses.
> I was going to make a similar suggestion when I initially read the post. I
> have many very different cables going from the shack to the antenna.
>
> It sounds like your stacking relays are mounted up the tower. While
> slightly more costly to install, I think that they are better at ground
> level. It is much easier to check for individual antenna problems and relay
> issues while standing on the ground.
>
> John KK9A
>
> To: <towertalk@contesting.com>
> Subject: Re: [TowerTalk] Questions
> From: "Ed Sawyer" <sawyered@earthlink.net>
> Reply-to: sawyered@earthlink.net
> Date: Wed, 31 Aug 2016 01:23:52 -0400
>
> I think it's a mistake to run the same cable for 270ft for this application.
> I would run the lowest loss you can afford for the main run - LDF4 or LMR600
> and then shift to a more flexible cable at the tower - LMR400flex or worst
> case RG213.
>
> I run 3 sets of coaxes for my systems. LDF5 from the shack to the switching
> at the towers. LDF4 from there to the stack matches and them LMR400flex
> from the stack matches to the beams.
>
> Ed N1UR
>
> _______________________________________________
>
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