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

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
» ss6900n V6
DIY AERIALS Icon_minitimeToday at 5:00 pm by Paul Gray

» Remote operation
DIY AERIALS Icon_minitimeToday at 4:49 pm by Wireless

» RSGB EMF compliance
DIY AERIALS Icon_minitimeToday at 4:43 pm by Paddy

» Coming back to cb
DIY AERIALS Icon_minitimeToday at 1:02 pm by John123

» New on CB Forum (Issued)
DIY AERIALS Icon_minitimeToday at 7:37 am by StevieG

» Hey new to CB (Issued)
DIY AERIALS Icon_minitimeToday at 7:36 am by StevieG

» Call sign request (Information Requested)
DIY AERIALS Icon_minitimeToday at 7:35 am by StevieG

» Trips Down Memory Lane
DIY AERIALS Icon_minitimeToday at 5:56 am by Savwafare10

» CRT SS9900 auto squelch function
DIY AERIALS Icon_minitimeYesterday at 9:38 pm by Victor

Keywords
Sirio president power display frequency anytone ALINCO list supply Mobile Calling callsign coax 6900 lincoln midland call bazooka ss9900 yaesu Mckinley sign antenna 9900 radio SS6900
QRZ Database

 

 DIY AERIALS

Go down 
2 posters
AuthorMessage
Blue Boy
New Member
New Member



Call Sign : 26-CT-3366
Posts : 32
Times Thanked : 0
Join date : 2019-09-14
QTH or Location : North Manchester
Equipment Used : tti 660 - binatone 5 star
Age : 68

DIY AERIALS Empty
PostSubject: DIY AERIALS   DIY AERIALS Icon_minitimeTue Mar 24, 2020 12:45 am

Can anybody tell me if the idea of a full wave length antenna (about 77" if I've done my calcs right) would be of help on 2m or indeed if a full wavelength antenna (about 25.2") would help on 70cm?
Back to top Go down
View user profile
GaryWilson
CT Directors
CT Directors
GaryWilson


Call Sign : 26-CT-1836 Ham 2E0GGQ
Posts : 2798
Times Thanked : 236
Join date : 2019-06-27
QTH or Location : Braunston Northamptonshire.
Equipment Used : Radios & Wires & Stuff!
Age : 57

DIY AERIALS Empty
PostSubject: Re: DIY AERIALS   DIY AERIALS Icon_minitimeTue Mar 24, 2020 5:51 am

Hello Tom,

A full wave antenna will have an undesirable radiation pattern. Look at making 1/4, 1/2 or 5/8  wave designs.

You can download some antenna modelling software to assist you or use existing and proven models of which there are many available on the net.

73's Gary.
Back to top Go down
View user profile https://www.qrz.com/db/2E0GGQ
Blue Boy
New Member
New Member



Call Sign : 26-CT-3366
Posts : 32
Times Thanked : 0
Join date : 2019-09-14
QTH or Location : North Manchester
Equipment Used : tti 660 - binatone 5 star
Age : 68

DIY AERIALS Empty
PostSubject: Re: DIY AERIALS   DIY AERIALS Icon_minitimeTue Apr 07, 2020 2:33 am

Hi Gary, very remiss of me - thought I had replied - thank you for the info and can understand the comments on full wavelength. Just getting an antenna analyzer so hope to be able to get a better idea of whether I am near the mark with my own designs using tested formulas etc. Thanks again..
Tom
Back to top Go down
View user profile
GaryWilson
CT Directors
CT Directors
GaryWilson


Call Sign : 26-CT-1836 Ham 2E0GGQ
Posts : 2798
Times Thanked : 236
Join date : 2019-06-27
QTH or Location : Braunston Northamptonshire.
Equipment Used : Radios & Wires & Stuff!
Age : 57

DIY AERIALS Empty
PostSubject: Re: DIY AERIALS   DIY AERIALS Icon_minitimeTue Apr 07, 2020 6:45 am

You're very welcome Tom, no worries.

I recently acquired a "Nano VNA" from ebay for £30 pounds. It might be worth checking out if you haven't already ordered your analyzer.

73's Gary.
Back to top Go down
View user profile https://www.qrz.com/db/2E0GGQ
Sponsored content





DIY AERIALS Empty
PostSubject: Re: DIY AERIALS   DIY AERIALS Icon_minitime

Back to top Go down
 
DIY AERIALS
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 :: PMR446, DMR, LPD Radios-
Jump to: