Page: 1 2
Kaosss
Moderator
Global user
Registered: 04-2008
Location: County of Flintshire, N. Wales
Posts: 791
Karma: 4 (+4/-0)
|
|
Reply | Quote
|
|
homebrew 20m beam?
Ok, I know there is loads of info out there but has anyone made one and can recomend a reliable source with easy instructions? Dont want to spend ages making one only to find out its no good!
Had first contact today on HF, Bulgaria, 2nd into Canada, couldnt believe it, and on a home made dipole.
Al
---
Al -163FB777 - N.Wales, UK
Kenwood TS-480SAT, MC-60A mic, 827-Base + 3 elli beam
K40 when mobile
|
|
12/Dec/2008, 11:02 pm
|
Send Email to Kaosss
Send PM to Kaosss
|
topbuzzuk
Administrator
Global user
Registered: 11-2007
Location: Wiltshire, UK
Posts: 1446
Karma: 5 (+5/-0)
|
|
Reply | Quote
|
|
Re: homebrew 20m beam?
heres a link to some info, theres probably loads more out there. try a google search as theres loads of Ham homebrewers out there
>>>>20m beam plans<<<<
--- 
26~FoxtrotBravo~118 |
|
13/Dec/2008, 10:48 am
|
Send Email to topbuzzuk
Send PM to topbuzzuk
|
Kaosss
Moderator
Global user
Registered: 04-2008
Location: County of Flintshire, N. Wales
Posts: 791
Karma: 4 (+4/-0)
|
|
Reply | Quote
|
|
Re: homebrew 20m beam?
Hadnt thought this through very well, with just having the 20m dipole thats really the only band I have listened to, think I should leave for a bit and decide later. I bought a Kenwood480sat Keith - I can read the frequencies without my glasses! Not the best reason for choosing a radio I know, but it helped.
Cheers Paddy, I have found lots of sites but wanted to see if anyone on here had made one of them first. The structure of them seems easy enough but dont understand the gamma match bit, am more of a hands on person, I can read about them for days but I need to see it up close and touch it!
Al
---
Al -163FB777 - N.Wales, UK
Kenwood TS-480SAT, MC-60A mic, 827-Base + 3 elli beam
K40 when mobile
|
|
13/Dec/2008, 2:02 pm
|
Send Email to Kaosss
Send PM to Kaosss
|
topbuzzuk
Administrator
Global user
Registered: 11-2007
Location: Wiltshire, UK
Posts: 1446
Karma: 5 (+5/-0)
|
|
Reply | Quote
|
|
Re: homebrew 20m beam?
i'm the same Al i forget what i read fast but if shown its like lodged in the brain.
---
26~FoxtrotBravo~118 |
|
13/Dec/2008, 6:54 pm
|
Send Email to topbuzzuk
Send PM to topbuzzuk
|
tony147
Registered user
Global user
Registered: 04-2008
Posts: 208
Karma: 1 (+1/-0)
|
|
Reply | Quote
|
|
Re: homebrew 20m beam?
Any joy with this project yet Al?? If you have the space for it then you are lucky.
I spotted an article in a RSGB book about using a A99 for a good few bands. he reckons it will tune low SWR on 18,21,24,28Mhz bands.
I tried my Silver Rod and got reasonably good results on 7,14 and of course 28Mhz.but the internal ATU wont do it you need an external like my Z11 pro.
Let me Know if you need a hand you know I love Antenna construction
---
Tony 26FB147
|
|
7/Jan/2009, 8:16 am
|
Send Email to tony147
Send PM to tony147
Blog
|
Kaosss
Moderator
Global user
Registered: 04-2008
Location: County of Flintshire, N. Wales
Posts: 791
Karma: 4 (+4/-0)
|
|
Reply | Quote
|
|
Re: homebrew 20m beam?
I tried my A99 and found the tuner will tune it on 6m as well, not tried that band before, no one on it though.
Its been to cold to play about outside so waiting for weather to improve a bit (lot), then I`ll have another look, dont worry, will be on phone if I need help or not!! I may try a G5RV, been told my internal tuner wont tune it but you never know. Still want a beam as well though
Al
---
Al -163FB777 - N.Wales, UK
Kenwood TS-480SAT, MC-60A mic, 827-Base + 3 elli beam
K40 when mobile
|
|
7/Jan/2009, 3:46 pm
|
Send Email to Kaosss
Send PM to Kaosss
|
26fb010
Registered user
Global user
Registered: 01-2009
Location: WEDNESBURY
Posts: 292
Karma: 0 (+0/-0)
|
|
Reply | Quote
|
|
Re: homebrew 20m beam?
it may be "forced" to tune on other bands but it will not be properly tuned and will not work as it should. a 1/4 wave 20 metre ant can be made by removing the balun coil from a cb silver rod (replace it with a 2 inch copper wire) and adjusting the length to suit the frequency CHEAPER THAN CHIPS.
|
|
29/Apr/2009, 9:16 pm
|
Send Email to 26fb010
Send PM to 26fb010
|
FB220
Registered user
Global user
Registered: 03-2009
Location: Wolverhampton
Posts: 60
Karma: 0 (+0/-0)
|
|
Reply | Quote
|
|
Re: homebrew 20m beam?
Have you managed to build one yet ?
I have had great results on my half size G5RV and internal tuner on my Kenwood ts 570d.
It tunes all the way from 80 to 10 without gaps.
However i need an external tuner to get my sirio vector 4000 tuned below 24mhz
--- My personal website and soon to be blog
http://www.wix.com/26fb220/26fb220 |
|
20/May/2009, 12:33 pm
|
Send Email to FB220
Send PM to FB220
|
madmark1
Registered user
Global user
Registered: 10-2009
Location: blackwood, southwales
Posts: 57
Karma: 0 (+0/-0)
|
|
Reply | Quote
|
|
Re: homebrew 20m beam?
NOT A BEAM BUT IT REALLY WORKS .get yourself a halfwave silver rod type cb antenna remove the coil, wire straight thought and shorten the antenna to about 16'5, ground mount it no more than a foot above ground, use a good earth rod.... this antenna will tune 20mtrs no atu needed... it works really well.
Last edited by madmark1, 30/Oct/2009, 11:29 pm
|
|
30/Oct/2009, 11:26 pm
|
Send Email to madmark1
Send PM to madmark1
|
Add a reply
Page: 1 2
Link to us
- Blogs
- Hall of Honour
- Chat
|
You are not logged in (login)
Board's time is: 27/Nov/2009, 3:18 pm
|
|
|
