On 2/29/2016 11:36 PM, Andy wrote:
Dave wrote:
For those of who might care I would assume that actually taking the coax
and measuring the delay at 1.5GHZ would be better than relying on the
manufactures published specs for velocity factor. I was going to set up
and measure the delay with a signal generator and good oscilloscope (I
have a 7104 1GHZ scope which still shows decent signal at 1.5 GHZ)
Technically I think what you would want to measure is the group delay, not
the phase delay.
Andy
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If by group delay you mean the additional delays inside the Z3801A I
would think HP/Semetricom would have taken that into account in the
firmware and that only delay external to the Z3801A is "compensated" for ...
Dave
NR1DX
--
Dave
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www.ArtekManuals.com
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