[time-nuts] noise of a 5370
Robert Atkinson
robert8rpi at yahoo.co.uk
Sat Mar 12 20:45:13 UTC 2011
Hi,
My 5370B gives about 21ps
Robert G8RPI.
________________________________
From: Jean-Louis Noel <jln at stben.net>
To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Sent: Sat, 12 March, 2011 10:26:48
Subject: [time-nuts] noise of a 5370
Hi,
I have a question for you guys.
I am currently fixing a 5370B and when I check the internal noise I got
23.2pS I think it is a bit too much.
Could you check yours noise?
1) Connect a cable between the rear panel FREQ STD OUT to front panel START
input connector
2) Set the input impedances at 50 ohms
3) Attenuator switches at /1
4) AC/DC switches to DC
5) Input slope switches to positive (high)
6) Level controls to preset
7) START COM
8) display rate fully clockwise
9) SAMPLE SIZE 10K
10) STATISTICS STD DEV
I got 23.2ps with 2ps unstability.
Is that OK?
Thanks for your help.
Bye,
Jean-Louis
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