Re: [time-nuts] Need to measure frequencies of two sources simultaneously

2013-10-24 Thread steve heidmann
How about locking a couple of vco's and measureing voltage ?. ( after 
calibration)


From: Richard Karlquist rich...@karlquist.com
To: time-nuts@febo.com 
Sent: Tuesday, October 22, 2013 9:59 PM
Subject: Re: [time-nuts] Need to measure frequencies of two sources 
simultaneously


On 2013-10-22 21:37, Bob Albert wrote:
 If the two frequencies are near one another you can measure the
 difference frequency, which may or may not be helpful.

The difference frequency does not work for us, just as the
ratio does not work for us.  Thanks. 


Rick
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Re: [time-nuts] Need to measure frequencies of two sources simultaneously

2013-10-24 Thread TMiller
It would seem that you need two counters that share the same gate.
Are the two frequencies asynchronous?


Thomas Miller,
Director of Wireless Services
Skyline Network Engineering, LLC
443-250-6381


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[time-nuts] Time Symposium in Pasadena - November 7-9

2013-10-24 Thread Tom Van Baak
Calling all time-nuts:

In case you didn't know, an interesting Time Symposium is being held at 
Caltech in Pasadena, California on Thursday, Friday, Saturday November 7-9. 
This is the same group that organized the famous Longitude Symposium (Harrison 
Chronometer) in 1993. To get a feel for the agenda, see:

Program details: http://timeforeveryone.org/program
List of speakers: http://timeforeveryone.org/speakers

This is not the place to get details on how to build a GPSDO, but if you have 
an broader interest in time and timekeeping, this one looks very attractive. It 
draws an international crowd. If you can make it, or if you're in the area, 
please consider joining. Registration is still open. I plan to be there (yes, 
I'm one of the speakers).

More information is on their website: http://timeforeveryone.org

/tvb


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[time-nuts] beta tester need: hp5370 processor replacement project

2013-10-24 Thread John Seamons
Please do not reply to the list -- send me an email.

I need one (just one) additional beta tester for the hp5370 processor 
replacement project: http://www.jks.com/5370/5370.html
Ideally you'd be able to write some C code that extends the instrument to do 
something interesting for the time-nuts community and uncover problems in the 
process.

You must be capable of removing/installing some 5370 boards, hooking up a wired 
Ethernet+DHCP connection and using various Linux tools on the BeagleBone Black 
SBC that is part of the new board.
No cost, other than your time, unless you'd like to reimburse me the list price 
(US$45) for the BBB since that should be useful to you no matter what happens.

Thanks

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