The one we have was part of a big DOCSIS rack that came from Scientific Atlanta.
On Wed, Mar 2, 2016 at 11:57 PM, Gerhard Hoffmann <dk...@arcor.de> wrote: > Am 02.03.2016 um 19:04 schrieb John C. Westmoreland, P.E.: > >> Magnus, >> >> This was the best answer I got so far - I am sure this isn't what you're >> looking for: >> >> >> http://www.ebay.com/itm/HP-89441A-Vector-Signal-Analyzer-Opt-1C2-AY9-UFG-AY7-AYA-/252278222960?hash=item3abcf43070:g:uRMAAOxyNo9SojsE >> >> I have one more person that I am waiting for an answer/suggestion from - I >> am not sure if there are any 3rd parties out there supporting this other >> than what you might find on eBay. >> >> Interesting aside is some of these are selling for more than they were >> being let go for after the first dot-com-bomb. >> >> The market for these was quite small, mostly cell phone developpers, > and they have made the jump to LTE already a long time ago. The 89441A is > not > good enough for LTE, so they probably have discarded their surplus stuff > long ago. Mine was pre-owned by Motorola I was told. > > Dynamic range < 10Hz is severely degraded by 1/f noise. It took me > 60 to 80 dB preamp gain for my noise measurements to hide that. > Then there is not much dynamic range left over. > > It was easy to put on the network with a €25 BNC to Western plug > adapter from Amazon. But you still need both BNC terminations even > if there is no real Ethernet coax cable. Works much better. > > Controlling is as easy as opening port 5000-something on 192.168.1.123 > and and dumping GPIB commands. I have done a program to do FFT > analysis over 7 decades (Linux, gcc, gnuplot...). Source is available. > Ooohps, I'm not supposed to think about that ;-) > > regards, Gerhard > > > I really like that 89441A! > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.