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Author Topic: 50 MHz frequency counter  (Read 8516 times)
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halil
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« on: December 24, 2007, 12:24:09 12:24 »

50 MHz frequency counter using pic16f84a
     http://www.sixca.com/eng/articles/fc50/
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marianqt
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« Reply #1 on: March 29, 2008, 08:14:45 20:14 »

better try this ! i make it and it works:
http://hem.passagen.se/communication/frcpll.html
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pl4tonas
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« Reply #2 on: March 30, 2008, 10:29:22 10:29 »

Also from the same page (main page) marianqt gave above, have a look at the exlusive frequency counter that uses 2x16 line LCD.
I made it and works perfectly.
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bbarney
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Uhm? where did pickit put my mute button


« Reply #3 on: March 30, 2008, 02:52:36 14:52 »

I didn't find a hex file for the exlusive frequency counter that uses 2x16 line LCD,any chance you have it?
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pl4tonas
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« Reply #4 on: March 30, 2008, 06:52:01 18:52 »

I bought it as a kit.
I will try to read the PIC, if it is not copy protected I will upload the hex.
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bbarney
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Uhm? where did pickit put my mute button


« Reply #5 on: March 30, 2008, 07:35:05 19:35 »

I'am keeping my fingers crossed Grin Grin
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tuldok89
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« Reply #6 on: April 04, 2008, 11:29:15 11:29 »

A Modified version of the above frequency counter... It counts frequencies up to 80MHz...

I already tried it and built it, and damn, it works...

http://www.geocities.com/alibhernlem/Radio/freq.html

You can find the source file on the PAGE
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bxngoc
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« Reply #7 on: May 02, 2008, 08:51:16 08:51 »

How about 100Mhz one?
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abk64
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« Reply #8 on: May 02, 2008, 11:42:43 23:42 »

hello pl4tonas

I'm not find a hex file for the exlusive frequency counter, please re upload.
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fythsg
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« Reply #9 on: May 09, 2008, 06:36:19 18:36 »

what precision on it?
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sinisa
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« Reply #10 on: May 09, 2008, 08:33:27 20:33 »

http://rapidshare.com/files/113733862/123456.rar.html
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jwildes
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« Reply #11 on: May 10, 2008, 04:12:33 16:12 »

Hi,

Checking the links listed i found this project. http://www.marc.org.au/marc_proj_lcmeter.html
Using a PIC16F628 with a few parts and with hex files and code.
I am interested in assembly it. Anyone did it? It´s work fine?

Best regards,

Jwildes
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zuisti
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« Reply #12 on: May 10, 2008, 04:48:01 16:48 »

Checking the links listed i found this project. http://www.marc.org.au/marc_proj_lcmeter.html
Using a PIC16F628 with a few parts and with hex files and code.
I am interested in assembly it. Anyone did it? It´s work fine?

Hi,
this is offtopic a little here, but look at this link:
 http://ironbark.bendigo.latrobe.edu.au/~rice/lc/index2.html
Here you can download also the asm source for the LC meter (lc2.txt).

This is an interesting project...
No, I don't tried it yet, but I want (will) prepare a Proteus simulation to try it, and I'll upload it.
 
zuisti
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LinkSys
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« Reply #13 on: May 26, 2008, 02:02:19 02:02 »

Hi,
this is offtopic a little here, but look at this link:
 http://ironbark.bendigo.latrobe.edu.au/~rice/lc/index2.html
Here you can download also the asm source for the LC meter (lc2.txt).

This is an interesting project...
No, I don't tried it yet, but I want (will) prepare a Proteus simulation to try it, and I'll upload it.
 
zuisti
Hi,
i found many link of LC Meter like this
http://electronics-diy.com/lc_meter.php
but i cannot find the formula or type of oscillator to calculate frequency.
can anyone explain me about this oscillator.

thank you.

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gramae
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« Reply #14 on: May 28, 2008, 06:30:55 06:30 »

I have made several frequency counters from this site
http://freenet-homepage.de/dl4yhf/freq_counter/freq_counter.html
Easy to make and very stable
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