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: Shortwave antenna question  (Read 618 times)
KD8FLL
Member

Posts: 4




Ignore
« on: May 01, 2007, 11:46:00 AM »

What kind of antenna do you have on your shortwave radio? I have an RF Systems EMF wire antenna hooked to my Icom IC-R75 radio. I live in an apartment on the third floor. As of now, my wire antenna is strung all over the place, and looks a bit messy. The reception is acceptable, but only for the more powerful stations.

I was wondering if I should try an active antenna and get rid of the wire setup. If so, what kind of active antenna would you recommend? I have a belcony, but I doubt management would allow an outside antenna. My EMF antenna cost $100.

73's,

-Chris
Logged
NA0AA
Member

Posts: 1042




Ignore
« Reply #1 on: May 01, 2007, 06:53:42 PM »

I did not look at the antenna you said you own, but for listening, I doubt an active [aka, amplified] antenna is going to do much for you - I think it would mostly raise your noise floor.

Two things come to mind:

For receiving, you don't need much in the way of wire - a very thin wire will do just fine, so perhaps you can devise some way to get a nice long piece of magnet wire outside to a tree or something - I think that would probably solve about 2/3 your battle, then I'd make sure you have a good ground to work against.

Understand I'm talking like 24 ga or thinner wire, as thin as you can get to stay up for a while - figure it's sort of temporary, but for the price of a 1/2 lb spool of wire, you can make lots of antenna.


One challenge I had on receive was the relatively broad bandwidth so for me a pre-selector helped quite a bit, but I'd try that second.

Hopefully that helps some.

I used the 'around the room at the top of the walls' for a while as well.  Just not going to be as good as wire in the clear.
Logged
ONAIR
Member

Posts: 1747




Ignore
« Reply #2 on: May 05, 2007, 09:45:17 PM »

    I used to throw a long piece of wire out the window when I lived in a condo.  I'd yank it back in when the radio was not in use.  A wire antenna outside always seemed to work better than an indoor wire for SW listening.
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!