PO Box 296 • TRACYTON, WA 98393-0296 • (360) 692-7750
 
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ZM-2 ATU (Antenna Tuning Unit) - Order The ZM-2 is a state of the art Antenna Tuning Unit. It is not just another standard tuner circuit repackaged. The ZM-2 has no inductance switching to mess with, just two variable capacitors to tune. And most times that is 1 to 1 SWR where other tuners only get close.

Just What Will It Tune?
The ZM-2 tunes wire antennas: Random, Long, Short, "that's all I had"... It tunes BALANCED fed antennas such as Loops, Deltas, Dipoles, Verticals, V's! From field reports it has tuned: House Gutters, Window Frames, Swing Sets, Bedsprings, etc. It tunes out mismatch in COAX fed antennas to make the radio happy.

Is It An AutoTuner?
No, the ZM-2 is not an autotuner. But it still tunes fast! Approximate tune time on a strange new antenna is less than a minute!

What Bands Will It Tune?
The ZM-2 will tune all bands from 80 to 10 meters.

Is It Hard To Build?
An evening project for many, maybe two evenings for others. Easy pictorial assembly instructions. There are build photos lower on this page as well as in the gallery.

There is one large toroid to wind, and one small one to wind, but they are probably some of the easiest ones you'll ever do.



More videos to come. In fact, we're goning to build the whole ZM-2 and post the videos.

What Is Included In The Kit?
Everything but the elbow grease, solder, and tools! All parts are furnished including a front panel label as shown and either BNC or UHF (SO239) connectors. We include large knobs to help tuning because the ZM-2 tunes so sharp.

How Much Power Will It Handle?
Maximum Power is 15 Watts.

What About Weight And Size?
The ZM-2 is a compact 5-1/16" x 2-5/8" x 1-5/8" and weighs only 8 oz. Great for backpacking.

Price - Order
The price is $65.00 (kit) and $90.00 (prebuilt) including shipping to US and Canada. For Europe and Japan we add $5.00 for the extra shipping. Washington State residents will have 8.6% sales tax added to their orders.



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Detail of build prior to installing T1
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Detail of build prior to installing T1
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Detail of build prior to installing T1
Show Larger Photo

Detail of build prior to installing T1
 
Show Larger Photo

Detail of build prior to installing T1
 











PO Box 296
Tracyton, WA 98393-0296

(360) 692-7750
Hours: (WEST COAST USA)
9:00 am - 6:00 pm (PST)

Eastern US call between 12:00 pm thru 9:00 pm YOUR time.

Midwestern US call between 11:00 am thru 8:00 pm YOUR time.

Mountain state call between 10:00 am thru 7:00 pm YOUR time.

Europe call between 18:00 thru 03:00 YOUR time.

UK call between 17:00 thru 02:00 YOUR time.

Japan call between 02:00 thru 11:00 YOUR time.

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