https://frrl.wordpress.com

A site of endless curiosity

Archive for March 21st, 2009

Limited Space Antennas – The Small Transmitting Loop Antenna

with 19 comments

isoloop_aeafullviewThe AEA Isoloop

My basement has a collection of limited space antennas.  They don’t work well in the basement.  Oh yes, I forgot, they are there in the basement in storage.  All these antennas have a story to tell.  They were used, at one time or another, in one of my limited-space or stealth-operating living locations.

The AEA IsoLoop HF Antenna was an antenna I used off the balcony in a Chicago high-rise.  The IsoLoop was a little more stealthy than my Texas Bug Catcher with its 10ft length at about a 45 degree angle hanging over the edge of the balcony within sight of my neighbors.

The AEA IsoLoop is a small loop transmitting antenna that covers 14 Mhz to 30 Mhz continuously tunable.  Being continuously tunable is a good thing and its a bad thing.  It’s a good thing as one antenna can go any where between 20 meters and 10 meters – anywhere.  The bad thing is that it’s tunable and can go any where between 20 meters and 10 meters.  Got that?  It’s tunable – which means you have to make some sort of adjustment for each band on which it operates..  Unlike a multi-band antenna that is resonant on multiple bands at the same time, a small loop antenna, like the screwdriver antenna is resonant on one swath of  frequencies at a time.

Read the rest of this entry »

Advertisements

Written by frrl

March 21, 2009 at 5:56 am

%d bloggers like this: