For those having withdrawal symptoms from not having a hot soldering
iron in their hands recently, I'm now accepting orders for a new
kit--the Z100 CW tuning aid.
Build time is between 2.5 and 3.5 hours and the kit is suitable for
beginners as well as experienced kit builders. No toroids to wind,
unfortunatly. But there are 24 LEDs to bend the leads on, so perhaps
that will be an acceptable substitute.
The Z100 uses 24 LEDs to provide a pseudo-spectrum analyzer display.
After a one-time calibration procedure, to tune a CW signal in you
adjust your K2 tuning knob until the two green LEDs in the center of the
display flash. The display shows the degree of frequency error and the
direction of the error. The result is that you can be very quickly zero
beat. I've used it for a couple months in prototype and find it a useful
CW tool.
The Z100 also can be used for tuning RTTY and other digital modes.
It's microcontroller based and will store/recall 16 center frequencies.
And, I've made available the Z100's complete source code, which is small
enough to be usable with the free Swordfish SE compiler.
I've added a web page describing the new Z100 at
http://www.cliftonlaboratories.com/z100_tuning_aid.htm.
You can see it along with other Clifton Laboratory products at Dayton
this year. I'll be sharing space with Larry's Telepostinc table - Booth
517. However, no sales at Dayton due to Ohio tax restrictions.
Jack K8ZOA
www.cliftonlaboratories.com
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