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Forums | Rap N Tap Clubhouse - Basic Crystal Radio Fun! | Z-Match Post Reply Send Topic To a Friend
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John Bruce McCreathPosted - 1 October 2012 8:3  Show Profile  Email Poster  Edit Message  
I finally completed my AM broadcast band version of the popular Z-Match antenna matching unit. A description and pictures can be seen here:

73, J.B., VE3EAR

gzimmerPosted - 1 October 2012 19:24  Show Profile  Email Poster  Edit Message

Very interesting, and nice pictures.

A circuit diagram would be nice, and perhaps a comment or two on how well it works.

Also what length is your antenna?

Thanks ........ Zim

John Bruce McCreathPosted - 12 October 2012 11:39  Show Profile  Email Poster  Edit Message  
Hi Zim,

I took the Z-Match, my portable LW-MW-SW radio and a coil of wire on a recent mini-vacation with my wife. With the wire strung out from our B & B suite to a tree and a water pipe for ground, it worked quite well. A big increase in signal strength compared to the radio's whip, and quite sharp peaks in the tuning. After checking it out on the BC band I tuned up to 160M and heard some W4s chatting, then went higher still to 2182 kHz. I heard some east coast marine traffic there, so over all the Z-Match proved itself useful. I'll use it at home on my 200 foot longwire and my single-tuned xtal set over the winter.

73, J.B., VE3EAR

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