[time-nuts] Z3801 lockin behaviour

[John Ackermann N8UR]

Magnus Danielson said the following on 07/24/2006 01:52 PM:
> From: John Ackermann N8UR <jra at febo.com>
> Subject: Re: [time-nuts] Z3801 lockin behaviour
> Date: Mon, 24 Jul 2006 13:18:06 -0400
> Message-ID: <44C500CE.4070106 at febo.com>
> 
>>Magnus, I like Tom's idea of plotting the 10MHz with no GPS signal, to
>>see if it's the oscillator or not, but I would go one step further and
>>disconnect the EFC input from anything to rule out any noise in the
>>control circuitry.
> 
> 
> Actually, that is not the reason for disconnecting the EFC input, the real
> reason is that the EFC does not stay put just because of holdover since it has
> the HP SmartClock technology. That means that it will adjust the EFC as a
> result of temperature and supply rail voltages.

Good point.  I was going to mention the holdover behaviour, but forgot.
 I'm getting old...

John