tektronix 2756p spoectrum analyzer question

[mike theodore.]

hi to newsgroup

I have found a good deal for a tektronix 2756p analyzer.
i haven't used though in the past this instrument.
I would like to konw pros,con's for this instrument if somebody
knows about it.
Regarding an hp 8563 how does it compare ?.
Is it completely analog ?. If so how long it takes to scan 20 khz @10hz RB.
Any help would be appreciated

thanks

mike

 

[John Miles]

In article <cf4q3g$77u$1@usenet.otenet.gr>, mixkef_removeme_@otenet.gr
says...

hi to newsgroup

I have found a good deal for a tektronix 2756p analyzer.
i haven't used though in the past this instrument.
I would like to konw pros,con's for this instrument if somebody
knows about it.

Tucker Electronics has started putting up digitized catalog pages for
some of the instruments they sell, which is kind of cool. You can read
about the 2750 series here:

http://www.tucker.com/images/images_spec/00004726.pdf

Basically, it's a 494AP with a bigger front panel that's more amenable
to rack-mounting. Otherwise 100% identical, inside and out. It (and
the 494AP) are the highest-end analyzers in the 490 series, which makes
them very good analyzers indeed... but they are not competitive with the
HP 8563.

Regarding an hp 8563 how does it compare ?

They are both high-quality instruments, but the HP 8563 will cost about
twice as much (around $10K versus around $5-6K) and give you a 10-
division screen with much higher-quality graphics, better sensitivity
and up to 1 Hz resolution via an FFT back end. It's a generation ahead
of Tek's 490/2750 series, so it's not exactly a fair comparison.

Is it completely analog ?. If so how long it takes to scan 20 khz @10hz RB.

It won't. You need an FFT instrument for that; sweeping a 10 Hz analog
filter across 20 kHz would probably take an hour, and the 490/2750 sweep
speeds top out at 5 seconds/division. What's your intended application
for that capability?

-- jm

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