Menu

I used the rest of my 500 feet roll of 14g stranded

Search this Thread

Prev

Previous Post

Next Post

Next

#11

Report Post

Old

March 1st 11, 01:58 PM posted to rec.radio.shortwave

dave

dave is offline

external usenet poster

First recorded activity by RadioBanter: Jan 2009

Posts: 5,185

Default

2 kinds of loops

On 03/01/2011 12:35 AM, wrote:
On Feb 28, 9:12 am, wrote:

My large horizontal loop requires no aiming nor tuning. It is for SWL
and amateur receiving only. Set it and forget it. QRM was the main
problem. It is 95% solved. I never (never) hear light switches (which
cause huge explosions on my ham radio) or the oscillators in my analog
TV; and like that there.- Hide quoted text -

- Show quoted text -

Horiz. sweep circuits in the CRT based units are extremely rich in
harmonics . You must have built an extremely successful product . Any
details/schematic available ?

Length feet = 1005/frequency of interest

Make area inside the loop as large as possible. Get it up in the air
(although under the eaves will work if you don't have a lot of metal
flashing.) It seems to be deaf to most QRM generated in the "near
field", so I have it 3' above my roof, generally in the same shape as
the house, parallel to the ground. I cut the loop and put an MFJ-913 4:1
current BalUn, 'cause that's what I had lying around. For receive you
can get away with a reversed CATV BalUn.

It wants to be balanced. Use ladder line, twinlead, or a BalUn with coax.

This article is only about half bull****:

http://n1su.com/loop.html

Reply With Quote

Reply With Quote

Thread Tools	Search this Thread
Show Printable Version	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

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
RG-142 or RG-303 Stranded?	Danny Richardson	Antenna	3	July 13th 07 06:05 PM
Roll your own?	NotMe	Antenna	1	May 14th 07 04:16 AM
800 ft of 14 ga insulated, stranded copper wire	[email protected]	Shortwave	3	August 9th 05 04:40 AM
solid or stranded copper best ?	Lee Carkenord	Antenna	3	October 9th 04 08:25 PM
#14, stranded	Al Lorona	Antenna	2	August 22nd 03 01:36 AM

All times are GMT +1. The time now is 03:55 PM.

About Us

"It's about Radio"

Contact Us RadioBanter forum home Privacy Statement

Copyright © 2017