D-777 Antenna Question

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Re: D-777 Antenna Question

Postby m0lsx » Tue Apr 25, 2017 3:49 pm

I would use the RG-8 for the tail. But personally I have always felt that RG-213 is the minimum quality we should use for main runs. RG-8 is great for mobile applications & tails & is not much behind RG-213, but needs to be double insulated, which means it needs a little more care when fitting connectors to it.
I am with G4RMT. Coax has evolved lately. Personally I use Messi & Paoloni Ultrflex at the moment for VHF & up. It is roughly the same price as good RG-213 & Ultra Flex 7 performs better than RG-213 & the same size as RG-8. The only down side is that the connectors are a little pricey.
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Re: D-777 Antenna Question

Postby G4RMT » Tue Apr 25, 2017 5:29 pm

Alan - can you point me to that cable - I need some shortly and can live with the connector costs. P
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Re: D-777 Antenna Question

Postby m0lsx » Tue Apr 25, 2017 7:51 pm

Lynches sell it & it's good stuff.
https://www.hamradio.co.uk/accessories-coaxial-and-dc-cable-pc-28.php

I think Nevada also sells it, but at a higher price.

The Ultraflex 7 is a great compromise coax. It is slightly better than RG-213, but almost as thin & flexible as RG-8. Yet only pennies more per meter. Connectors are about £6.50 each.
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Re: D-777 Antenna Question

Postby Dieselguzzler » Wed Apr 26, 2017 8:25 am

Again, thanks for the info, checked out Lynches website and their cable & accessories, looks good kit and reasonably priced.

Can anyone advise & share any pictures of how they've fed their co ax from the external antenna into the house and what connectors, co ax sockets or other methods you're all using.
As I said in earlier post I'm considering feeding co ax into a faceplate socket and using a tail to connect by 125xlt.

Any input appreciated :thumbup:
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Re: D-777 Antenna Question

Postby Dieselguzzler » Fri Apr 28, 2017 7:59 am

Dieselguzzler wrote:Again, thanks for the info, checked out Lynches website and their cable & accessories, looks good kit and reasonably priced.

Can anyone advise & share any pictures of how they've fed their co ax from the external antenna into the house and what connectors, co ax sockets or other methods you're all using.
As I said in earlier post I'm considering feeding co ax into a faceplate socket and using a tail to connect by 125xlt.

Any input appreciated :thumbup:


Anyone provide any examples etc, advise appreciated
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Re: D-777 Antenna Question

Postby m0lsx » Fri Apr 28, 2017 9:45 am

I use standard connectors.
I always terminate in a PL-239 as I need a variety of different connectors for my radios & thus use the same set of adaptors on all coax. Be it mobile, portable or home based.
My coax enters the house either via a window or via the the roof space via the soffet.
Two issues you may want to consider is what happens during a thunderstorm & water on the outside of the coax during wet weather.
I simply push the ends of my coax out of the window during a thunderstorm. And I make sure the coax enters the house via an upward slope & as an added protection I have several cable ties on the coax just before it enters the house with clip on ferrites between.
As a whole ferrites are not really needed on VHF. But I always put them on coax entering my shack, as they only add a couple of pounds to my costs & don't cause any issues, just remove them.
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Re: D-777 Antenna Question

Postby m0lsx » Fri Apr 28, 2017 9:48 am

If you use cable ties on your coax to stop water. Never cut off the tail. Just point it downwards & water will follow it & run off the coax.

Water on coax cable works like the following example. So adding a cable tie makes the water leave the cable & go down the tail.
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Re: D-777 Antenna Question

Postby G4RMT » Fri Apr 28, 2017 10:59 am

Now that is a great idea!
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