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John
Don't know if you got an answer, but this is my understanding :-
The 11729B needs to have an external 640MHz reference input for
measurements above 1280MHz. The 11729C has a SAW-based 640MHz
oscillator built-in, but it can
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I have a 11729C with a full complement of filters. Have not had time to play
with it yet, as I just got a working 8662A. Regardless, be careful if you
are going to bid on them. Most of them only have one or two filters. So, the
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On Tue, 10 Jul 2007, Grant Hodgson wrote:
I've been wondering if it would be possible or practical to
replace the internal Step-Recovery Diode comb generator in the 11729B/C
with one of the Non-Linear Transmission Line comb
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On 7/7/07, Dr Bruce Griffiths [EMAIL PROTECTED] wrote:
With suitable modifications to allow individual adjustement/selection of
the bias for each JFET a pair of the more readily obtainable J310's can
be substituted for the U431.
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The UPS man just delivered a care package from my
latest ebay purchase!!! I fired it up and found the
front panel displayed properly, but no output on the
75ohm BNC connector, but the rear panel 21-60mhz aux
works fine as mesured by
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Picosecond Pulse Labs quoted me $1,000 for one of the NLTL comb generators a
couple of years ago. They are nice parts, no question about it, and
substantially better than SRD multipliers.
In quantity, they would be cheaper, since I
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The 8662A derrives it's 640MHz o/p from a (very) good 10MHz crystal osc.
which is then doubled 6 times and filtered at the 40MHz and 160MHz
stages with crystal filters. The problem with using so many multipliers
is that the noise
