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Call Sign : 26-CT-3891 Posts : 66 Times Thanked : 0 Join date : 2020-11-30 QTH or Location : Doncaster Equipment Used : CRT SS 6900N .. Yaesu ft450d Age : 58
Subject: SWR which should use Tue Dec 08, 2020 11:27 pm
Freq.. 26.4-850mm, 27.0-642mm, 27.185-600mm, 27.5-478mm its for a 5/8
Northern Crusader Major contributor
Call Sign : M0GVZ / 26CT1760 Posts : 489 Times Thanked : 32 Join date : 2019-11-13 QTH or Location : IO94SA Equipment Used : Icom 7300, TS480, President McKinley, Albrecht AE6110, CRT Mike Age : 52
Subject: Re: SWR which should use Wed Dec 09, 2020 4:21 am
I'm guessing you want to be able to use CEPT and UKFM?
27.5 Mhz, it's smack in the middle of both.
And by the way don't expect that measurement to be a guarantee it'll be a low SWR there. That measurement is merely a start point to get you in the ball park. There's lots of things that can affect that, including whether or not you've got a decent RF ground and are using a RF choke at the antenna. If you're not then your coax can become part of that and its length will affect the tuning.
Chefsdead likes this post
Alan Pilot Major contributor
Call Sign : 163-CT-220...MW7TTA Posts : 2185 Times Thanked : 52 Join date : 2019-11-19 QTH or Location : Anglesey North Wales Equipment Used : Yaesu FT-991A,,Yaesu FTDX-10,,Icom ic-7300,,Anytone AT-D878UV PLUS",,LINCOLN II+. Age : 149
Subject: Re: SWR which should use Wed Dec 09, 2020 7:42 am
Play around with the SWR at 27.5 to get the lowest around there. As NC say's they length you have got there is not going to be spot on unless you are very very lucky.
Yesterday at 11:03 pm by 
Subject: SWR which should use 
