Without terminating the cable in 50 ohms, you're getting reflections
that the counter sees as additional peaks in time.
To see much at all one needs 12 digits of resolution.
Brian
On 7/15/2013 20:46, Bob Stewart wrote:
Hi Mark,
I just tried a10 second gate, and it's still the same, though the 4.9999999
happens less often. Could it be related to the fact that this is a TTL signal?
If I don't set the 50 ohm Z button it counts double - i.e. 10MHz.
bob
________________________________
From: Mark C. Stephens <ma...@non-stop.com.au>
To: Discussion of precise time and frequency measurement <time-nuts@febo.com>
Sent: Monday, July 15, 2013 3:06 PM
Subject: Re: [time-nuts] GPSDO - Does it work?
Slow the Gate time down.
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