[time-nuts] EPE - GPS Frequency Reference Project

Alan Melia alan.melia at btinternet.com
Sat Sep 26 22:00:36 UTC 2009

Hi Joe ah the bain of my career "unspecified specifications".........and
"well it worked ok on the prototype!"  from the design authority!! :-))
Best wishes
Alan G3NYK

----- Original Message -----
From: "Joe McElvenney" <ximac at btinternet.com>
To: "Time Nuts Digest" <time-nuts at febo.com>
Sent: Saturday, September 26, 2009 1:32 PM
Subject: [time-nuts] EPE - GPS Frequency Reference Project

> Hi,
> Boring mode - ON
> With reference to the subject matter and my previous posting, I can
> confirm in the true Orwellian manner that all 74HC4046 devices are equal
> except that some are more equal than others. Mine, a NS labeled device,
> will not tolerate DC coupling along with long pulse inputs whereas
> others (I think those from NXP [Philips]) will. Another, but messy
> solution, is to AC couple them and clamp the negative-going peaks to
> ground.
> Boring mode - OFF
> Cheers - Joe G3LLV
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