Paralleling devices reduces noise. Why do you think otherwise? Noise will be
reduced by the square root of the number of devices you parallel.
-----Original Message-----
From: cdel...@juno.com
Sender: time-nuts-boun...@febo.com
Date: Wed, 19 Dec 2012 14:43:02
To: <time-nuts@febo.com>
Reply-To: Discussion of precise time and frequency measurement
<time-nuts@febo.com>
Subject: [time-nuts] noisy varactor diodes
The HP sceme in the patent refers to an array of series and parallel
diodes to reduce noise.
Just paralleling them does not reduce the noise!
The 4 paralleled in the 5065 are to give enough phase deviation for the
low modulation level applied. (150mv)
The symptom was a fluctuating 2nd harmonic meter reading and coresponding
fluctuations at the A7 TP2 test point.
John I could not see the info you refered to?
Corby
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