2 Seconds After I sent that, I thought, what am I saying, what can we measure from 0.02-25Khz besides audio or seismic events?! The 3582A phase spectrum function is interesting. I suppose one could employ some sort of LO/mixer to get it down to 25Khz but would mess the phase up anyway.
The 3582A is 25Kg, the 3585A is 40Kg. Actually, looking at the spec sheet the 3585A is 20Hz-40Mhz, not 10Hz. 3585A Residual phase noise (typical at 40 MHz, -10 dBm input), 5 KHz offset: -112 dBc/Hz. 100 KHz offset: -120 dBc/Hz. Which is about what I get in PN.exe. 3568B is specified -107dBc @ 30kHz offset, I am getting way lower than that, seems noise floor for me is ~-170 in PN.exe. But I don't know how accurate it is way down there. -marki -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Mark C. Stephens Sent: Monday, 15 July 2013 2:35 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Spectrum Analyzer Suggestions I just wish John Miles could get it into the Phase noise list of sources.. -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of dlewis6...@austin.rr.com Sent: Monday, 15 July 2013 2:12 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Spectrum Analyzer Suggestions Consider the HP 3582 for the 'lower-end', ...it is a very nice SA (using FFT). Slow, tho. It tops out at 25KHz, but has a long list attributes. ...some being lightweight and modestly 'affordable.' -Don Lewis Austin, TX (Hyde Park) ---- K3wry <k3...@aol.com> wrote: > Take a look at the RIGOL analyzer. You can get this new one for about the > same money Dr Joe PALSA 804-350-2665 Sent from my iPhone. On Jul 14, 2013, at 1:18 AM, "Mark C. Stephens" <ma...@non-stop.com.au> wrote: Perry I have a 3585A too, The weight isn't so bad once you get used to it. :) Mines on a rack shelf that I can slide it out onto the workbench for maintenance. Performance wise, they are fantastic for phase noise measurement using John Miles's Phase noise software. Although a little slow, It is pretty nice to see what's going on down at 10 Hz. I really can't find a replacement for my 3585A, other than the "B" model. Also the boards come up cheap on eBay if you need parts. I have almost a complete set of spare boards I bought for 10 bucks each. So all in all, you got yourself a good Analyser, cheap to maintain and good specs. Run it through the performance tests as per the manual, this SA will be a pleasant surprise for you :) -marki -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Perry Sandeen Sent: Sunday, 14 July 2013 1:10 PM To: time-nuts@febo.com Subject: [time-nuts] Spectrum Analyzer Suggestions List, I just purchased a HP 3585 spec analyzer on E bay for a reasonable price. I wanted this instead of the 181 series as the range was more to what I’d be using and it was of a newer vintage. The 3585a goes from 10 Hz to 40 MHz which is a most useful range for my purposes. so far, so good. The problem is I didn’t know the beast weighed a svelte 88 pounds! Double Hernia time! What I’d appreciate advice for a used spec analyzer in the $1,000 range that is at least much lighter. A smaller size would also be a benefit. I probably would never use it above 100 MHz. A slightly smaller screen would be OK. Suggestions appreciated. Regards, Perrier _______________________________________________ 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. _______________________________________________ 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. _______________________________________________ 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.
