LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #10   Report Post  
Old November 11th 07, 06:45 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 108
Default Probably a stupid question...

Hey Doc,

Thanks for the input. I overslept for the 1300 UTC broadcast of VOK, but
did pick up the 1500 broadcast. Unfortunately the RF amp offers nothing
over the whip that comes with (and already attached to) my Sony 7600GR
portable. More work to be done. Need to tease out the secrets of impedance
matching, as well as add a boatload of additonal amplification. Damn it's
hard to compete with a successful commercial product. Still, I have at
least reached the level of performance with the RF amp that the preamp in my
7600GR already offered, with the exception of a little additional background
noise.

Hope I didn't discourage Cecil from trying to help. Sorry if I did. I
don't mean to be ignorant, and it is something I am trying to change.

73 and good DX

Dave

wrote in message
ups.com...
Dave,
In a nut-shell, a larger antenna will tend to be more 'receptive'
at lower frequencies. Then you can think about matching the
impedances of the antenna system and receiver.
Larger antennas have the 'problem' of being 'larger', as in where
do you put the thing? Reducing the size of an antenna can be more
practical mechanically, but tends to be less practical electrically
(noise, less 'receptive', etc, etc.). Your 'best' bet would be to
find a reasonable compromise between the two kinds of 'practical'
thingys (mechanical/electrical). Usually easier if you can make it
bigger, sort of.
- 'Doc

(all puns intended, even the ones I didn't intend)





 
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
Stupid Americans! -- Stupid... Stupid... STUPID!!! __________==___pemluzov -exray Digital 0 November 9th 04 07:27 AM
Stupid Americans! -- Stupid... Stupid... STUPID!!! _____________ egedduqy Peter Lemken General 0 November 8th 04 11:38 PM
Stupid Americans! -- Stupid... Stupid... STUPID!!! __________==___pemluzov sideband Boatanchors 2 November 8th 04 07:39 AM
Stupid Americans! -- Stupid... Stupid... STUPID!!! __________==___pemluzov sideband Digital 2 November 8th 04 07:39 AM
Stupid Americans! -- Stupid... Stupid... STUPID!!! __________==___pemluzov sideband Boatanchors 0 November 8th 04 01:59 AM


All times are GMT +1. The time now is 09:38 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