LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #1   Report Post  
Old January 31st 05, 09:07 AM
DrBrain
 
Posts: n/a
Default vertical with tuner at the rig?

Hello everyone!

There's now brand-new steel roof over me and time to put up a
vertical. Dont want to spent too much time over that slippery and
rather high roof messing with traps, so: planning to put up a fishing
pole (7 m long) and coil wire around it. Would like to use rig's
autotuner and short run of rg6 cable. Dont mind swr 5 or so. Played
with EZNEC and found that 12 m long radiator would present reasonable
impedances at 40, 30, 20, 17, 15. But, when my mast is 7m long, should
I coil 12 m or more wire around it?? Should I use capasitators at the
base of the antenna to to tune out reactances? Or can tuner do that on
the other side of coax? Anyone done something similar? Any comments?

Andrus
 
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
Inverted ground plane antenna: compared with normal GP and low dipole. Serge Stroobandt, ON4BAA Antenna 8 February 24th 11 10:22 PM
Interested in high-performance tube-based AM tuner designs Jon Noring Shortwave 85 June 14th 04 01:36 AM
AM Tube Tuner Kit -- candidate models from yesteryear? Jon Noring Shortwave 5 June 11th 04 12:52 AM
QST Article: An Easy to Build, Dual-Band Collinear Antenna Serge Stroobandt, ON4BAA Antenna 12 October 16th 03 07:44 PM
Poor vertical performance on metal sheet roof - comments? Kristinn Andersen Antenna 23 August 8th 03 11:08 PM


All times are GMT +1. The time now is 11:59 PM.

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