Joseph,
I remember we've had one in the company where I was working back then.
It was ok for TV and similar stuff.
The frequency stability was not really great, but what can you expect
from a free running 1st LO?
The drift was specified < 50 kHz / 5 min after 2 hours warmup and 5
minutes after setting the center frequency.
Also, note the center frequency accuracy of < +/- 5 MHz...
Btw. the drift spec was bumped up to 75 kHz for the B model, so it might
have been a bit optimistic.
Well, if it costs near nothing, and your applications are not very
demanding, it might be worth considering.
Adrian
Joseph Gray schrieb:
Thanks to all for the advice. I agree with Said that a 8560E would be
much nicer. However, I may be able to get this 8590A very
inexpensively. Considering the price difference between this unit and
a newer/better SA, I'm inclined to go with this one. I'm thinking of
this as "training wheels". Once I gain some hands on with a SA, I'll
know better what I want in a future purchase.
Joe
KA5ZEC
On Sat, Feb 20, 2010 at 5:20 PM, Bob Camp <[email protected]> wrote:
Hi
There are "drop in" replacement video sections for some of the older
instruments. It's not a duplicate of the original, but a form / fit / function sort of
thing. I have no idea if there is one for the 8590.
They still cost more than most of these gizmos sell for used.
Bob
On Feb 20, 2010, at 5:53 PM, Rick Karlquist wrote:
The CRT's went out of production something like 20 years ago.
The factory stock was exhausted long ago. Of course there
could be NOS forgotten somewhere, like in a barn with a
1957 Chevy with 50 miles on it :-)
Rick N6RK
Lux, Jim (337C) wrote:
And make sure the CRT has life left. On a lot of older units, either the
faceplate is burned with the graticule and noise floor, or they're so dim
that you have a hard time reading it. I suspect that replacement CRTs
cost
more than the whole used analyzer.
On 2/20/10 11:27 AM, "life speed" <[email protected]> wrote:
Date: Fri, 19 Feb 2010 17:38:50 -0700
Subject: [time-nuts] OT: HP 8590A
Since the list members are familiar with lots of test equipment, I'd
like to ask what the folks here think about the HP 8590A Spectrum
Analyzer. Is this model ok? Are there any particular failures I should
be aware of in this 20+ year old equipment?
I have a chance to buy one locally. The only option is has is GPIB. I
took a preliminary look at it and it passes the simple test/cal
procedure from chapter 1 of the Ops manual. This model only goes to
1.5GHz, but would still be useful for Amateur use. I do wish it would
go up to 3GHz, however. I have never owned a spec an, but am somewhat
familiar with their usage.
Thanks for the input.
Joe
KA5ZEC
I personally do not like these low-end spectrum analyzers. They have
poor
dynamic range and phase noise performance. However, I design microwave
circuits for a living and can be a test equipment snob.
If you think it is adequate for your purposes, I would at least connect
it to
a calibrated signal generator and verify amplitude accuracy is within 3
dB.
Most old spec ans I have seen are way off, even broken. Still show a
signal
on the display, but not very helpful. Also check for spurious across
many
frequencies.
Clay
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