Charlie Tango 11m DX Radio Group Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.


Welcome to the Charlie Tango DX Group. The home of ALL things Radio - CB, 11m DX, Amateur, PMR446, PLD, Network and Data. We welcome all radio enthusiasts of all knowledge levels. Join today and claim your own unique World Famous CT Call-sign
 
HomeEventsCalendarFAQSearchRegisterLog in
New eQSL Email Service: Exchange eQSL cards quickly and easily with your very own eQSL email address like this... 26CT000@eQSL.me or 26CT000@charlietango.co.uk - See Latest News forum for more details.
Latest Buxton 2020 News: Unfortunately, due to the Covid-19 pandemic we have had to cancel this year's Buxton date. Sorry for any inconvenience.
Navigation
Useful Radio Sites
Log in
Username:
Password:
Log in automatically: 
:: I forgot my password
CT Bill Board





Views This Year
All Time Views
Classified Adverts

Latest topics
» Charlie Tango Dx eQSL Email Addresses Available £5
Ground plane question Icon_minitimeToday at 3:06 pm by Firetrap

» Call sign request
Ground plane question Icon_minitimeToday at 1:58 pm by NUBSTER

» Gainmaster wind limits
Ground plane question Icon_minitimeToday at 7:46 am by glenn dog

» Call Sign Request (Issued)
Ground plane question Icon_minitimeToday at 7:35 am by PlasticAlternatives

» call sign request
Ground plane question Icon_minitimeToday at 7:20 am by StevieG

» Impedance of mic for tti TCB-550 (AMC-5011)?
Ground plane question Icon_minitimeToday at 5:59 am by Victor

» Buxton Bash 2021
Ground plane question Icon_minitimeYesterday at 11:51 pm by FamousPablo

» Hello- call sign request (Issued)
Ground plane question Icon_minitimeYesterday at 11:32 pm by Bigl903

» Call Sign request (Issued)
Ground plane question Icon_minitimeYesterday at 10:57 pm by leno51

Keywords
ss9900 sign Mobile list frequency Calling 6900n 9900 call division lincoln chart antenna alan ALINCO tickets Buxton Sirio midland Mckinley callsign radio yaesu power bazooka president
QRZ Database
 

 Ground plane question

Go down 
AuthorMessage
Guest
Guest



Ground plane question Empty
PostSubject: Ground plane question   Ground plane question Icon_minitimeSun Apr 05, 2020 7:42 am

Hi all.
basic question on the above. Does the shape of the radials have any effect,, What I mean is ( and im just pulling numbers out of the air) If I have G/P radials that are 6ft long and angled down at 45degs it would work, but what happens if I angle the low 1/2 of the radial back in at 45degs would it affect how the G/P is working,,, Does it work on electrical length or physical length/ area. Reason I ask is id like to play around with G/Ps but im limited for space,, I can go up but not out, lol one of the blessing of no mans land.

Cheers Tom
Back to top Go down
Northern Crusader
Contributor
Contributor


Call Sign : M0GVZ / 26CT1760
Posts : 256
Times Thanked : 15
Join date : 2019-11-13
QTH or Location : IO94SA
Equipment Used : Icom 7300, TS480, President McKinley, Albrecht AE6110, CRT Mike
Age : 49

Ground plane question Empty
PostSubject: Re: Ground plane question   Ground plane question Icon_minitimeSun Apr 05, 2020 2:41 pm

They work on electrical length so one made with insulated wire would appear approximately 4-5% longer to RF than one made of bare wire.

Anything you do which alters the angle can affect the feed point impedance. It'll still work OK, it'll just alter the tuning and there may be some effect on the radiation pattern of the antenna but there's not a lot you can do about that so just put up what you can. Bringing them out at 45 degrees as long as you can and then just letting the remainder hang vertically is an option too.
Back to top Go down
View user profile
Guest
Guest



Ground plane question Empty
PostSubject: Re: Ground plane question   Ground plane question Icon_minitimeSun Apr 05, 2020 3:35 pm

Cheers N/C.
Given me something to think about, Wink
Back to top Go down
 
Ground plane question
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
Charlie Tango 11m DX Radio Group Forum :: Help and Discussion Forums :: Antenna Discussion-
Jump to: