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Frequency Counter

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Gregory

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I wish to build a basic frequency counter Where can I obtain a circuit digram.
Frequency range required, From 0 to 250K
 
Gregory said:
I wish to build a basic frequency counter Where can I obtain a circuit digram.
Frequency range required, From 0 to 250K
http://www.epanorama.net/multi.php?search=search&keyword=frequency+counter&submit=search
http://hem.passagen.se/communication/freqcount.html
http://www.tldp.org/linuxfocus/English/September2002/article253.shtml
**broken link removed**
http://www.discovercircuits.com/T/timers.htm

http://www.madlab.org/kits/frqmeter.html
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This is a good one that I thought about building. They have several different frequency counter kits, but this one will allow you to mount everything in a box then just hook it up to whatever and it be just like a commercial one. Just my .02 worth.

Thanks,
Matt

**broken link removed**
 
ae4jm said:
This is a good one that I thought about building. They have several different frequency counter kits, but this one will allow you to mount everything in a box then just hook it up to whatever and it be just like a commercial one. Just my .02 worth.

Thanks,
Matt

**broken link removed**

Looks nice, but it's basically just a PIC counter (similar to the weedfreq.htm one mentioned above) - however, it does have the advantage of a prescaler which ups the frequency considerably!.

I notice he does quite a range of PIC based devices!.
 
Frequency Colunter

Yes,

I was directed to his page before because I am a amateur radio operator and I had several QRP radios that I had built, only one had a frequ. counter and this was done using CW instead of the conventional LCD readout. I wanted something to be sure that I wasn't transmitting out of band limits. I use to have a commercial Yaesu rig, not anymore, that I could check my op frequency with. I haven't built this frequ. ctr yet but it looks really nice!

Thanks,
Matt
 
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