Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #11   Report Post  
Old August 5th 03, 09:54 PM
Irv Finkleman
 
Posts: n/a
Default

Bill wrote:

Has anyone tried the new super broomstick receiving antenna for sale on
ebay? I was wondering if it was any good or not.


Bill,
There are a number of variations on the broomstick antenna. They
are all variations on a helically wound antenna (a coil of wire, usually
fairly wide spaced, on a broomstick or dowel). In the absence of any
other antenna they may or may not work well enough to satisfy you, but
you might do just as well or better with a piece of wire strung across
the room or hanging out the window. Transmitting is another case --
but you mentioned the 'receiving antenna'. Hope this helps!

Irv VE6BP
--
--------------------------------------
Diagnosed Type II Diabetes March 5 2001
Beating it with diet and exercise!
297/215/210 (to be revised lower)
58"/43"(!)/44" (already lower too!)
--------------------------------------
Visit my HomePage at http://members.shaw.ca/finkirv/
Visit my very special website at http://members.shaw.ca/finkirv4/
Visit my CFSRS/CFIOG ONLINE OLDTIMERS website at http://members.shaw.ca/finkirv5/
--------------------
Irv Finkleman,
Grampa/Ex-Navy/Old Fart/Ham Radio VE6BP
Calgary, Alberta, Canada

  #12   Report Post  
Old August 5th 03, 10:36 PM
Jack Twilley
 
Posts: n/a
Default

=2D----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

"Roy" =3D=3D Roy Lewallen writes:


Roy Without any RF test equipment, another way to tell is by physical
Roy measurement of the dielectric and inner conductor diameters. But
Roy you'll need some calipers to do that. If you have piece of marked
Roy cable of the same outside diameter and either impedance for
Roy comparison, you can easily tell the difference -- for the same
Roy outside diameter, 75 ohm cable has a noticeably smaller inner
Roy conductor than 50 ohm cable.

This is very helpful. Thanks!

Jack.
=2D --=20
Jack Twilley
jmt at twilley dot org
http colon slash slash www dot twilley dot org slash tilde jmt slash
=2D----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (FreeBSD)

iD8DBQE/MCNoGPFSfAB/ezgRAu4eAJ0UNwB/sUsibeEIIJnNhfb8EzT1yQCfbi6R
ZkSckI9I3eJabxJjUDxk84M=3D
=3D6cOK
=2D----END PGP SIGNATURE-----
  #13   Report Post  
Old August 5th 03, 10:37 PM
J T
 
Posts: n/a
Default

I was actually waiting for someone to catch it but you were too busy
thinking troll or flame.

TV Coax is 75ohm.


"W5DXP" wrote in message
...
wrote:
It's a good thing to make fun and belittle a newbie who is trying to
learn something?


No newbies allowed. The only people allowed are mean old farts suffering
from prostate problems. :-) Hint: Treat them like a duck treats a flood.
--
73, Cecil
http://www.qsl.net/w5dxp



-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 80,000 Newsgroups - 16 Different Servers! =-----



  #14   Report Post  
Old August 5th 03, 11:19 PM
 
Posts: n/a
Default

Not necessarily!, there are also "Broomstick " antennas (VHF- UHF type) that
are STACKED sections of coax (Co-linears), where the sheath of a 1/2 wave
length piece is soldered to the center conductor of the next 1/2 wave piece
of coax (and also vice versa), with several of these sections, done, the
last section, if memory serves me right, is a 1/4 wave piece of wire, and it
is attached to the last 1/2 wave section, shield, and center conductor
shorted together!
similar to DB PRODUCTS- Green Hornet, and has a 1/4 wavelength radial for
counterpoise.
as info, Jim NN7K



"Irv Finkleman" wrote in message
...
Bill wrote:

Has anyone tried the new super broomstick receiving antenna for sale on
ebay? I was wondering if it was any good or not.


Bill,
There are a number of variations on the broomstick antenna. They
are all variations on a helically wound antenna (a coil of wire, usually
fairly wide spaced, on a broomstick or dowel). In the absence of any
other antenna they may or may not work well enough to satisfy you, but
you might do just as well or better with a piece of wire strung across
the room or hanging out the window. Transmitting is another case --
but you mentioned the 'receiving antenna'. Hope this helps!

Irv VE6BP
--




  #15   Report Post  
Old August 6th 03, 02:54 AM
Ralph Mowery
 
Posts: n/a
Default

I was actually waiting for someone to catch it but you were too busy
thinking troll or flame.

TV Coax is 75ohm.



TV coax has the shield made of aluminum or other nonsolderable material. 75
ohm coax can be soldered :-)




Reply
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
How do I make a cheap but good pirate radio antenna 'Doc Antenna 14 August 1st 03 03:19 AM
Looking for info on a good triband antenna Elmer E Ing Antenna 3 July 27th 03 04:27 PM


All times are GMT +1. The time now is 04:10 AM.

Powered by vBulletin® Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright 2004-2020 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017