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Old 16th May 2011, 06:39 AM   #1
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Join Date: Oct 2007
Location: New York, NY
Default Frequency Counters

Hi Guys,

I'm looking at getting a sub $100 frequency meter.
Stumbled across these new ones:
0.01Hz - 2.4GHz Precision Frequency Counter Meter Test | eBay
Multifunction Counter (10Hz¡«2700MHz) TFC2700L

But I'm a little cautious. I'm also quite open to buying used; but I'm worried about it being non-functioning.

Any Recommendations? Do you think either of the first two will work out okay?

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Old 18th May 2011, 10:51 AM   #2
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Casual Bump.
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Old 18th May 2011, 03:04 PM   #3
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Join Date: Nov 2010
Location: N.E. PA
What is your goal, audio ?

Counters listed have prescalers, which enable higher frequencies, but at reduced accuracy.

Is your goal accuracy ?
What is the desired frequency coverage ?

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Old 18th May 2011, 05:32 PM   #4
macboy is offline macboy  Canada
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Location: Ottawa, Canada
A prescaler doesn't reduce the accuracy or the precision. It reduces the resolution (from say 1 Hz to 10 Hz). The precision will be the same (# digits) and the accuracy (% error) will still depend primarily on the accuracy of the internal frequency reference. I assume that accuracy is quite limited on these cheap meters; notice the conspicuous lack of an accuracy specification.
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Old 25th May 2011, 10:48 PM   #5
tomchr is offline tomchr  Canada
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I have an older HP 5334B with the 1.3 GHz input option and temperature controlled reference oscillator. I picked it up on eBay a while back for something like $150. That's incredible bang for the buck.

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