freq counter?

Martin Czech czech at Micronas.Com
Thu Jun 29 12:29:48 CEST 2000


50ppm is the result of the built in quartz tolerance, I think there is a "pull"
capacitor trim to trim the resonance frequency...

Lowest display: I have to check that at home.

Problem: I work for the company at daytime, and at night I run
the companys advertising stand at the Freiburg Zelt Music Festival.


I'll need some time for the reply...

email: I think I ordered the stuff via their web page, 
I phoned them severall times, quite friendly people...

m.c.


:::X-Originating-IP: [212.151.124.246]
:::From: "Augusto Pinoche" <augustopinoche at hotmail.com>
:::To: czech at Micronas.Com
:::Cc: synth-diy at node12b53.a2000.nl
:::Subject: Re: freq counter?
:::Date: Thu, 29 Jun 2000 01:09:19 GMT
:::Content-Transfer-Encoding: quoted-printable
:::
:::Hmm, looks realy nice, 50ppm is really OK in most cases.
:::
:::How low does it meaure?
:::milli hz plus a couple of decimals?
:::
:::Do you have antý experience if ELV is a company
:::that dont hassle if one orders thru mail?
:::
:::Reg
:::APD
:::
:::>From: Martin Czech <czech at Micronas.Com>
:::>Reply-To: Martin Czech <czech at Micronas.Com>
:::>To: n0nspaz at loa.com
:::>CC: synth-diy at node12b53.a2000.nl
:::>Subject: Re: freq counter?
:::>Date: Fri, 23 Jun 2000 09:05:43 +0200 (MET DST)
:::>
:::>What you really need is a time intervall (period) measurer.
:::>Because the frequencys we use in audio are so low.
:::>E.g. for 1s gate time you may read 49, 50 or 51 Hz.
:::>Not very usefull...
:::>
:::>Modern "frequency counters" allow for frequency and time (period)
:::>measurement, look at the www.elv.com page, product # 68-228-76,
:::>about 50 EURO, 	I've build this one and it works ok.
:::>(the documentation of the jumpers was not ok...)
:::>
:::>This thing is especially nice, because it determines when the resolution
:::>in frequency mode is too low and does a period measurement instead,
:::>then it computes the reciprocal -> frequency.
:::>This means: the frequency reading is allways meaningfull and accurate,
:::>you don't need to calculate the frequency from a period measurement.
:::>
:::>m.c.
:::>
:::>:::suddenly have a use for one (calibrating the phasers an arp).  can i 
:::>build
:::>:::one? what is it exactly??
:::>:::
:::>:::m
:::>
:::
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