Are you as surprised as I am by the sophistication of the information about 
CB?  Anyone smart enough to understand half of the information available is 
certainly capable of getting  their tech and general license.  Heck, I had 
no problem cramming for the general and I don't know how to turn on the car 
radio.  I'm more curious than ever now to see what is going on on CB. 
Anyway, do any of you know if I'm going to have any problem with my radios 
going through Mexico and central America?


----- Original Message ----- 
From: "Kenneth Lee" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, January 15, 2007 1:41 PM
Subject: Re: Dual Antennas was :RE: antenna building


> I'm commenting to my own message because I was puzzled by the FireStik
> article when it stated the two antennas should be at least 1/4 wavelength
> apart.  I was pretty sure co-phased antennas should be at least 1/2
> wavelengths (18 feet for cb) or more.  I did some more research on
> co-phasing and found these two articles on a CB how-to web page.  The two
> articles below are more accurate and explain better how closely spaced
> co-phased antennas can work in a mobile installation.  I have recently 
> been
> interested in co-phasing antennas because I want to co-phase a couple of 
> FM
> broadcast beams to pull in a hard to reach station.
>
> The below articles are for CB design but the designs will apply to amateur
> radio and of course to FM-broadcast too.
>
> From the "The Ultimate Guide to 11 Meter CB Antennas" web page (ok I laugh
> at this, but it is interesting reading and I think the info is accurate).
> Mobile Antennas
> http://signalengineering.com/ultimate/mobile_antennas.html
> Performance Tips - Co-Phasing
> http://signalengineering.com/ultimate/co_phasing.html
>
> 73, Ken -N5SWR
>
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