Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: [1]   Go Down
  Print  
Author Topic: What is the loss for CATV 75 Ohm hardline?  (Read 1660 times)
W4JST
Member

Posts: 0




Ignore
« on: September 18, 2012, 12:47:59 PM »

I have 75 ohm CATV hardline, I believe it's 1/2"?

Does anyone have a loss chart on this? I'd be particularly interested around 150 and 450 MHz.

Thanks.
Logged
WB6BYU
Member

Posts: 13342




Ignore
« Reply #1 on: September 18, 2012, 01:02:51 PM »

It may be similar to Commscope P3-750 JCA, data for which is loaded into
VK1OD's Transmission Line Loss Calculator here:

http://vk1od.net/calc/tl/tllc.php
Logged
W4JST
Member

Posts: 0




Ignore
« Reply #2 on: September 18, 2012, 04:52:12 PM »

Thanks, and by the way I put up a 1/4 wave vertical. 1/2" copper pipe top section with four radials sloping down about 45 degrees or so like the #4 grounding wire or something like that. Thanks for the help with the antenna.
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!