[R-390] HP Spectrum Analyzer

[Perry Sandeen]

wrote: > I would like to obtain an HP spectrum analyzer to use on my R-390A

Hi Frank,

A HP 3585A is certainly the way to go if one has a spare kilo buck!

In the more affordable range is the HP 141 series.   They are plentiful and can be found complete and working in the $400 range.  But shipping can be high.

There are a number of others you might also want to consider.  The HP 181 while not as prevalent as the 141 series if often reasonably priced.

I think you should also consider units made by Tektronix. They have the 491 and 492 stand alone units.  They also have a 7L12 plug in for the 7000 series of scopes.  The 7000 series are even bigger BA’s than the R390 but are built extremely well and are cheap, cheap, cheap.  I got a 7904 500MHz mainframe with four good working plug-ins for $200. Although the 7L12 plug in hovers in the $500 range. 

Two more points.  My observation is that on epay a particular type test equipment seems to come in spurts and prices vary wildly.  

Secondly take a long hard look at what you want to do.  It is easy to get lots of money invested on an obscure idea.  That’s how I got seven HP 3568B selective level volt meters.

Three work OK, two need small repairs and two are only good for parts (but were supposed to be working).  I got them for less that the dealers wanted but ended up spending close to $1K over a two year period.  But in reality I will only end up using two or three at the most.

It is very easy to get carried away on the minor stuff.

Regards,
Perrier