Rising Sun Member Forums  

Go Back   Rising Sun Member Forums > Other Hobbies > Ham & CB Radio Corner

Reply
 
Thread Tools
  #11  
Old 04-14-2008, 05:39 AM
DaveInDenver's Avatar
DaveInDenver DaveInDenver is offline
Hard Core 4+
 
Join Date: Jun 2006
Location: Larimer County
Posts: 6,380
Default

Quote:
Originally Posted by Tanglefoot View Post
It's a 1/4 wave on 2-meters with a simple inductive trap at the 70cm 1/4 distance from the base. I'm afraid I don't know the properties of an effective trap, but a few spirals seems to do the trick!
The MFJ-1724B. Looks similar to the antenna I use for around town and on trails with low trees, a Larsen NMO2/70SH. It's 1/4λ on 2m, coil a few inches up and center-loaded 3/4λ on 70cm, overall about 19" tall. I would have guessed that was the same. But if it's 1/4λ on 70cm, remember that's about 7" and so the coil is probably spaced about that far up.
__________________
'91 Pickup

"Why does the U.S. care which flag will be hoisted on a small piece of land thousands of miles away?" -- Ron Paul
Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -6. The time now is 03:04 AM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.