[R-390] HP 8640B Question

[r.tetrault at comcast.net]

Would gladly swap my Fluke 6060 for an 8640B, even though the Fluke is fully GPIB'd (and is actually setup for that in my rack). Cleaner, better attenuator. Nice knobs... personal preference 
----- Original Message ----- 
From: "Michael OBrien" <mikobrien at yahoo.com> 
To: r-390 at mailman.qth.net 
Sent: Friday, February 19, 2010 8:33:05 AM GMT -08:00 US/Canada Pacific 
Subject: Re: [R-390] HP 8640B Question 

How does the Fluke 6060A/AN compare to the HP 8656B I have one (calibrated 2008) and 2 8640B's One of them was bought off ebay from a guy who does a lot of work on them Now I am a little nervice about them 
Mike 

--- On Fri, 2/19/10, Robert Nickels <ranickel at comcast.net> wrote: 

> From: Robert Nickels <ranickel at comcast.net> 
> Subject: Re: [R-390] HP 8640B Question 
> To: r-390 at mailman.qth.net 
> Date: Friday, February 19, 2010, 11:18 AM 
> On 2/19/2010 7:14 AM, Jerry K wrote: 
> > HP 8656B<snip> has been the best test 
> equipment money I've ever spent. 
> > 
> > 
> Gotta chime in with Jerry on that! My 
> 8656B came about when analog 
> cellphone factories had to re-tool, and I suspect there are 
> many 
> off-lease and available now that everything has gone 
> digital. Simply 
> put, they are fantastic. I've cross-checked the 
> attenuated RF output 
> and find it's dead-on, and there's nothing like being able 
> to generate 
> whatever frequency you want at any amplitude up to 1 volt 
> with AM or FM 
> modulation in 1% increments and know it's exactly what it's 
> supposed to 
> be - 100khz through 990 mhz. Another nice 
> plus is the protection 
> circuitry on the RF output, which works very well (don't 
> ask how I know 
> this!) 
> 
> Manual 
> 
> Some have knocked the purity of the output but I've never 
> found it to be 
> an issue for what I use an RF generator 
> for. And the 8640 it replaced 
> also was properly recycled - I swapped it for another 
> R-390A ;-) 
> 
> 73, Bob W9RAN 
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