Go Back   WorldwideDX Amateur Radio Forums > Misc. Radio Related > Scanning & Shortwave Listening


Amateur Callsign Lookup
Enter Callsign:

Hallicrafters S-40B Antenna

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-26-2012, 07:47 AM
Junior Member
iTrader: (0)
 
Join Date: Jan 2012
Location: Sterling, VA
Posts: 12
Mike337 is on a distinguished road
Default Hallicrafters S-40B Antenna


I dug out my fathers old Hallicrafters S-40B last night and it still works like a dream. I would like to put up a long wire antenna in the attic. The attic is T shaped. I was thinking down one side, up the middle and back down the other in the shape of a squared off M about 10 feet apart on the legs in just the larger attic. My other choices would be down 15 ft turn left and run it another 30 feet in an L shape or I could take it in a U for an additional 30 feet in the smaller attic space, or finally, around the whole attic for about 125 ft. Any thoughts? What's the correct wire size? Thanks.


Reply With Quote
  #2  
Old 01-26-2012, 09:53 AM
Crotchety Old Bastard
iTrader: (0)
 
Join Date: Apr 2005
Location: Oklahoma
Posts: 6,802
W5LZ is on a distinguished road
Default

What size wire? Whatever size you happen to have handy. Size isn't going to make any significant difference if it's strong enough to hold it's self up.
If there's any particular band that appeals to you, I'd make the antenna of a length that would favor that band. If you don't have any particular band of interest, then in general, the longest antenna you can conveniently manage should do fine.
The 'problem' with running antennas 'back' on them selves is that some portion of a signal can be 'neutralized', 'wasted', sort of. That deals with frequency and wave lengths, a particular 'length' being better than another in that relationship.
If you continue the run of wire back to the radio, the whole thing becomes part of the antenna. That can be either good or bad, just depends on what that part of the antenna is run near. The one thing that people seldom remember about longwire/random wire antennas is that theydo require the 'other half' of the antenna, a good ground system. Lots of variations in that, but all antennas need that 'other half' to work well. That other half can be in the form of a 'ground', or just another length of wire (feed the thing in the middle). You have gobs of alternatives. Got metal window screens? Just for grins, hook a wire from one to the antenna jack on that radio, you might be surprised. And antenna is just an electrical conductor of signals. If it's electrically conductive, it can be an antenna, or part of one.
Have fun.
- 'Doc

Reply With Quote
Reply

Bookmarks
Worldwide Radio Forum



Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
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
Super C antenna...this is really neat Moleculo Amateur Radio Antennas 14 01-19-2014 02:04 PM
Hustler 6-BTV vertical HF antenna CDX8412 General Ham Radio Discussion 15 08-15-2013 02:55 PM
Modified Vector 4000 bob85 CB Antennas 374 05-17-2012 03:01 PM
Need a 6db Base Antenna For 406-512Mhz. Kirk2010 Amateur Radio Antennas 4 08-07-2010 02:58 PM


All times are GMT -7. The time now is 08:04 AM.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Worldwide Radio Forum