Re: [IRCA] Has anybody ever tried this?

[satya@xxxxxxxxxxxx]

Hey Len:

Good going on the homebrew tuned stick.  Sounds like you now have the
equivalent of a Quantum Stick!

Hope it continues to pull in tough DX for you.

Kevin S
Bainbridge Island, WA




> On Sat, Nov 15, 2008 at 10:39 PM, Len Hyde <donutbandit@xxxxxxxxx> wrote:
>
>> Years ago, I made a device to peak up the untuned ferrite bar antenna in
>> my
>> DX-440. It's simply another ferrite bar, tuned with a small tuning
>> capacitor
>> out of the same radio that donated the bar, mounted in a piece of vinyl
>> channel. The idea is to lay it on top of the DX-440, and use the
>> capacitor
>> to peak the circuit. The gain increases dramatically, but I never messed
>> with it much, being a proponent of large air core loops.
>>
>> However, I have been playing with it lately, and have found that you can
>> get
>> some interesting nulling/phasing effects by moving it around and
>> retuning
>> it.
>>
>> For instance, tonight I was on 1140. KHTK was blasting in as usual, and
>> KGEM
>> in Boise was audible by turning the air loop. I could occasionally hear
>> another station with religious singing in there, but never could bring
>> it
>> up, since it peaked along with KGEM.
>>
>> So, I got my little trick device out, and found that I could put that
>> bar
>> atop my radio, oriented and tuned in such a way that I could hear the
>> other
>> station clearly when it peaked. Both KGEM and KHTK were barely audible.
>> It
>> turned out to be CFXL, Calgary, AB. I couldn't get it in with the big
>> loop
>> because it was looped right through the Boise station.
>>
>> So, it looks like there may actually be some kind of phasing involved.
>> I'm
>> going to play with it some more.
>>
>> --
>> Leonard Hyde
>> Weed, CA
>> Realistic DX-440
>> 6 foot shielded loop
>>
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