Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old April 5th 05, 02:47 AM
Max Power
 
Posts: n/a
Default Has anyone ever designed a SW transmission system using curtan arrays that has a beamwidth of 2.5 to 5 degrees?

Has anyone ever designed a SW transmission system using curtain arrays that
has a beamwidth of 2.5 to 5 degrees?
Most standard curtain arrays [HR 4/4/1 to 12/6/1] have 15 to 30 degrees of
beamwidth.


  #2   Report Post  
Old April 5th 05, 01:15 PM
 
Posts: n/a
Default

I don't know what a curtain array is for SW (Shortwave)
Transmitting.Perhaps someone else has more information.
cuhulin

  #4   Report Post  
Old April 6th 05, 03:29 AM
 
Posts: n/a
Default

My eight years older brother was an MP over fifty years ago.I have every
right in the World to read alt.military.police news group and post there
any time I feel like it.I guess you have a problem with that too,eh?
cuhulin

  #5   Report Post  
Old April 6th 05, 03:24 AM
 
Posts: n/a
Default

What the hell! What is in the water over there in Colliersville anyway?
I am going to sic all of them mean old Pitt Bulldogs on you.Hey,I don't
know everything about Shortwave Radio and Shortwave Antennas and
Shortwave Transmitters.I do know what Curtain Antennas are now
though.Sheeesh!,,,y'all Tennesseans sure are dense! Memphians don't like
Mississippians either.Those Alabama Dumb Asses are far better than y'all
Tennesseans and so are those Louisiana Cajun Coon Asses too.I suppose
you have always all your life known what Curtain Antennas/Transmitters
are eh? Every since the day you was born!
cuhulin




  #6   Report Post  
Old April 6th 05, 03:35 AM
 
Posts: n/a
Default

George Ashley,and then my eight years older brother got in Helicopter
Maintnance.He was a Helicopter Mechanic at Vung Tau,Vietnam in 1964 (his
second Tour of Duty in Vietnam following a year in Germany) the same
year I was in Vietnam too,in 1964.YOU are the DUMBIST SON OF A
BITCH!!!!! IN THE WORLD!!!!
cuhulin

  #7   Report Post  
Old April 5th 05, 01:38 PM
 
Posts: n/a
Default

Has anyone ever designed a SW transmission system using
curtain arrays that has a beamwidth of 2.5 to 5 degrees?


I'd guess that if it were done, it would've been inspired by the
cold-war broadcaster vs jammer "contests".

If you can find pictures of antenna farms from the 50's/60's/70's
(sometimes pictured on QSL cards for example) you might look for
patterns indicative of the arrays you're interested in.

Tim.

  #8   Report Post  
Old April 5th 05, 02:41 PM
Dan
 
Posts: n/a
Default


Curtain Array

- Last picture in the series..

http://www.xs4all.nl/~gouwelee/pj4pa2vst.htm

- ALSO.. heard on WBCQ that there is someone in Florida who made their
antenna(s)


Check around..

  #9   Report Post  
Old April 5th 05, 03:06 PM
 
Posts: n/a
Default

Bonaire,looks like a nice place.I didn't know those kinds of antennas
are called curtain antennas,but I have seen them before in movies and
books and magazines.
cuhulin

  #10   Report Post  
Old April 5th 05, 02:50 PM
RHF
 
Posts: n/a
Default

Max Power,


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
DRM: Technical Aspects of The On-Air System Mike Terry Shortwave 0 January 29th 05 06:49 PM
RF amps: tuned load in Class A? Don Pearce Homebrew 141 September 15th 03 05:02 AM
A Subtle Detail of Reflection Coefficients (but important to know) Dr. Slick Antenna 199 September 12th 03 10:06 PM
I have an antenna transmission line problem larry Antenna 3 August 1st 03 03:20 AM
50 Ohms "Real Resistive" impedance a Misnomer? Dr. Slick Antenna 255 July 29th 03 11:24 PM


All times are GMT +1. The time now is 09:07 AM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017