[time-nuts] Z3805A 10 MHz Output Spectral Purity

W2HX w2hx at w2hx.com
Sun Dec 5 17:29:55 UTC 2010


Did you measure this while terminated into a 50 ohm load? (or whatever the
characteristic impedance is)

73 Eugene W2HX


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of J. L. Trantham
Sent: Sunday, December 05, 2010 12:22 PM
To: 'Discussion of precise time and frequency measurement'
Subject: [time-nuts] Z3805A 10 MHz Output Spectral Purity

I obtained a Z3805A from one of our popular far eastern sellers on ePay and
just got around to hooking it up to power and antenna.  It appears to be
working correctly, comes on frequency, 'locks', and matches my other
standards well, at least in frequency.

However, it is not a sine wave.  It is 'sine wave like' but obviously
distorted with the upper half of the sine wave somewhat flattened but
nowhere near as much as the bottom half.

Is this normal?

Thanks in advance.

Joe


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