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#1
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I am looking to build a frequency counter, or buy an inxepensive kit.
Any recommendations? Needs: low cost, few parts count Thanks |
#2
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Almost All Digital Electronics
"SWbeginner" wrote in message ... I am looking to build a frequency counter, or buy an inxepensive kit. Any recommendations? Needs: low cost, few parts count Thanks |
#3
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Almost All Digital Electronics
"SWbeginner" wrote in message ... I am looking to build a frequency counter, or buy an inxepensive kit. Any recommendations? Needs: low cost, few parts count Thanks |
#4
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I made a 5Hz to 100MHz from a Ramsey kit. Yeah, it's a P.O.S., but it's
also still functional after 15 years! :-) -- Gregg *It's probably useful, even if it can't be SPICE'd* http://geek.scorpiorising.ca |
#5
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I made a 5Hz to 100MHz from a Ramsey kit. Yeah, it's a P.O.S., but it's
also still functional after 15 years! :-) -- Gregg *It's probably useful, even if it can't be SPICE'd* http://geek.scorpiorising.ca |
#6
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I plan on building receivers and a simple frequency counter is needed.
Say 4 to 6 digits, up to about 50 Mhz. I have seen approaches using: 74HCxxxx logic IC's could be made for $20 but lots of wiring PIC - not much experience except with 16f84. how to build programmer for lastest PIC's? Anyone know of a demo or free digital simulation software with CMOS 4XXX library? I have Microcap 7 demo but digital library is scarce. So much has progressed since the MC14553 3 digit counter chips. Do they even make them? What frequency range , how accurate, and what do you think of as inexpensive ? I have not looked lately but there used to be some that would work up to about 1.5 Ghz around $ 125 or so that would get you to within a couple of hundred Hz at 150 mhz. |
#7
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I plan on building receivers and a simple frequency counter is needed.
Say 4 to 6 digits, up to about 50 Mhz. I have seen approaches using: 74HCxxxx logic IC's could be made for $20 but lots of wiring PIC - not much experience except with 16f84. how to build programmer for lastest PIC's? Anyone know of a demo or free digital simulation software with CMOS 4XXX library? I have Microcap 7 demo but digital library is scarce. So much has progressed since the MC14553 3 digit counter chips. Do they even make them? What frequency range , how accurate, and what do you think of as inexpensive ? I have not looked lately but there used to be some that would work up to about 1.5 Ghz around $ 125 or so that would get you to within a couple of hundred Hz at 150 mhz. |
#8
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I am looking to build a frequency counter, or buy an inxepensive kit.
Any recommendations? Needs: low cost, few parts count Thanks What frequency range , how accurate, and what do you think of as inexpensive ? I have not looked lately but there used to be some that would work up to about 1.5 Ghz around $ 125 or so that would get you to within a couple of hundred Hz at 150 mhz. |
#9
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I am looking to build a frequency counter, or buy an inxepensive kit.
Any recommendations? Needs: low cost, few parts count Thanks What frequency range , how accurate, and what do you think of as inexpensive ? I have not looked lately but there used to be some that would work up to about 1.5 Ghz around $ 125 or so that would get you to within a couple of hundred Hz at 150 mhz. |
#10
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You might try Francesco Morgantini's (IK3OIL) PIC freq counter. It's based
on a 16f84 and he will email you the hex code if you request it. It will run to approx 45 MHz as is and up to 1.5 GHz with a simple add on prescaler. He has divide functions built in the program ( divide by 10/32/64) and he has also include IF offset if you want to use the counter as a freq readout. I've etched about 40 boards for local hams here and every one that has been built has worked without fail. Total cost has been in the neighborhood of $35.00 including the prescaler but excluding enclosure. If you want a copy of the circuit board layout with prescaler, just email me at ww2742 at dragonbbs.com. As for accuracy, I just adjusted one today for another local ham at it was within 200 Hz at 440 MHz using a recently calibrated IFR-1200 for a source - that was close enough for me. Here's his website URL: http://digilander.libero.it/ik3oil/menu_eng.htm Mike "SWbeginner" wrote in message ... I am looking to build a frequency counter, or buy an inxepensive kit. Any recommendations? Needs: low cost, few parts count Thanks --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.580 / Virus Database: 367 - Release Date: 02/06/2004 |
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