Sporadic Reflections

05 September 2006

Low-cost Frequency Counters

Would you believe a home-brew frequency counter for $10?
Check out this very simple design for one at the Feb. 2005 Norcal QRP meeting.
Search for IK3OIL about half way down the page. IK3OIL did the
original design (60kb PDF). I also dig the Uni-counter just above the
IK3OIL counter on the Norcal page. You can get the code for the counter
from WB4CHK.

You say $10 is still too much?
How about $4?
A vary clever design by PA2OHH, cleverly modified by Hans Summer, G0UPL.