LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #6   Report Post  
Old February 18th 07, 04:52 AM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Feb 2007
Posts: 287
Default Trimming 2m 5/8 wave antenna for 156 mhz ???


"Tom Ring" wrote in message
. ..
Jimmie D wrote:

"James" wrote in message
. ..

Dave, as stated in my OP, this is a 5/8 wave antenna. It is the
antenna
that I have bought and that I will use temporarily. This will be for a
very
temporary use, and I agree with your suggestion about a marine 1/2 wave,
which I will do later on.

My question is "about" how much to trim for 156 mhz use. I will use an
SWR meter to get it right on spot, but I would like a feel for how much
to
trim. It is tricky to calculate , even using the "468" formula,
because of it being base-loaded.

73 de Jim K4PYT




Triming alone want do it, the base is designed to match the 5/8 2m to 50
ohms. Unless you can also figure out a way to modify the matching network
you cant do it.


B as in B, S as in S. It is plenty close enough to work just fine with a
little trimming.

And B means Bull, and S means ****.

tom
K0TAR



No need for the vulgarities but you are correct, it will probably work.
Sorry didnt mean to bring out any hostility.

Jimmie


 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Idine Ghoreishian -by- Idine Ghoreishian { The SPGC Antenna by RHF } RHF Shortwave 6 May 22nd 06 07:38 AM
Passive Repeater Bryan Martin Antenna 13 February 10th 06 02:03 PM
I Want Another Antenna Lenny Shortwave 4 January 23rd 06 10:12 PM
physical 1/4, electrical 1/2 wavelength John Smith Antenna 59 March 31st 05 10:53 PM
Poor quality low + High TV channels? How much dB in Preamp? lbbs Antenna 16 December 13th 03 03:01 PM


All times are GMT +1. The time now is 06:43 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017