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Call Sign : 163-CT-278 Posts : 11 Times Thanked : 0 Join date : 2021-03-08 QTH or Location : Wrexham North Wales Equipment Used : Yaesu FT101d, 991A, 891A, Crt9900
Subject: Best Coax? Tue Mar 30, 2021 8:00 pm
I am just fixing my antenna to the top of the house and was wondering what peoples opinions are on the best coax to run, the run will be approx 25 metres TIA
BigTone Contributor
Call Sign : G8YMW or 26CT4498 Posts : 92 Times Thanked : 17 Join date : 2019-07-16 QTH or Location : Lincoln and Finningley Equipment Used : CRT 9900, Icom 705, Kenwood TS570, Icom 910 Age : 69
Subject: Re: Best Coax? Tue Mar 30, 2021 8:22 pm
I presume you are talking about 11 metres so I will answer on that assumption IMO RG213 and use compression fittings PL259s to help keep water out. If it is higher frequencies (eg 2m, 70cms PMR446) then you will need better coax
kelsm likes this post
kelsm New Member
Call Sign : 163-CT-278 Posts : 11 Times Thanked : 0 Join date : 2021-03-08 QTH or Location : Wrexham North Wales Equipment Used : Yaesu FT101d, 991A, 891A, Crt9900
Subject: Re: Best Coax? Tue Mar 30, 2021 8:25 pm
BigTone wrote:
I presume you are talking about 11 metres so I will answer on that assumption IMO RG213 and use compression fittings PL259s to help keep water out. If it is higher frequencies (eg 2m, 70cms PMR446) then you will need better coax
Yes sorry, I should have said 11m, and thanks the RG213 is what I was looking at just wanted to make sure I was on the right track.
BigTone Contributor
Call Sign : G8YMW or 26CT4498 Posts : 92 Times Thanked : 17 Join date : 2019-07-16 QTH or Location : Lincoln and Finningley Equipment Used : CRT 9900, Icom 705, Kenwood TS570, Icom 910 Age : 69
Subject: Re: Best Coax? Tue Mar 30, 2021 8:53 pm
A suggestion, wind a choke as near to the aerial as you can. To do it now would save faffing about later and keeps RF off the outside of the braid
Paddy likes this post
oilygarage New Member
Posts : 4 Times Thanked : 0 Join date : 2019-07-03
Subject: Re: Best Coax? Fri Apr 30, 2021 5:57 pm
BigTone wrote:
IMO RG213 and use compression fittings PL259s to help keep water out.
Yes, I agree regarding RG213, it should be fine on a 25m run.
Note that PL259s aren't waterproof at all, even the compression ones, though I agree that compression or crimp fittings are the best ones. The water enters the plug via the thread onto the socket by capillary action, so always best to use self amalgamating tape around the whole thing.
Even better use an N type connector with a compression fitting. There is a seal inside the plug at the top of the thread making the whole thing waterproof. They're at bit of overkill RF-wise for 11m, but way, way better than the Godawful PL259 all round.
Today at 2:33 pm by Alan Pilot
Subject: Best Coax? 