¿ªÔÆÌåÓý

  1. HP-Agilent-Keysight-Equipment
  2. Messages
Messages Topics Expanded
Date
Re: N9020A
Yeah, the PXAs we have at work take a long time to come up, and they always seem to be doing realignments right when you want to make a measurement! Another irritating thing is that if I don't power
By Jim Ford · #143792 ·
Re: N9020A
The phase noise of the E4406A is quite good but there's a lot of high performance options for measuring phase noise these days...? it's hard to keep up with it all. For many years I've wanted an
By jmr · #143791 ·
Re: Seeking HP 80000 Data Generator (aka 2900A) system software
HI Brian, I found this zip file in my stash. To generate the diskettes you'll need a PC that can run LIFUTIL.exe. I hope this is what you need! Regards, Stan
By Stan · #143790 ·
Re: HP 140B LVPS -12.6V Not Working
According to the HEWLETT PACKARD TRANSISTORS & DIODES. COMMERCIAL CROSS-REFERENCE , an 1854-0071 crosses to a 2N3704 or a 2N3391. Both of those are ECB (apologies to David if those were ones you'd
By n4buq · #143789 ·
Re: Agilent E4404B Spectrum Analyzer With Dead PSU Repair
No worries. We can still be friends! LOL! Jim
By Jim Ford · #143788 ·
Re: Agilent E4404B Spectrum Analyzer With Dead PSU Repair
I'm sorry Jim, I didn't mean to sound disagreeable. I typed and sent that too fast. Rifa problems are caused by moisture absorption, not line voltage or lightning. This is a very well-known
By Dave McGuire · #143787 ·
Re: N9020A
Yes, I will keep it on the wishlist! Thanks for sharing the plots. I've heard with it's relatively low phase noise it can be used to measure PN as well. Jim
By Jim Ford · #143786 ·
Re: N9020A
When used within its limits, the 14 bit E4406A is a really nice analyser. I typically use mine to measure the accuracy of various attenuators and it can also be used to test the accuracy of the 1dB
By jmr · #143785 ·
Re: Agilent E4404B Spectrum Analyzer With Dead PSU Repair
Pittsburgh, not much lightning here. Nearly every Rifa capacitor I see is swollen and crazed, and when you see that, detonation isn't far behind. -Dave
By Dave McGuire · #143784 ·
Re: N9020A
It isn¡¯t too much to ask for that you be able to replace commodity components that fail with identical replacements. It¡¯s also not unreasonable to want to replace a board with a functional
By Ed Marciniak · #143783 ·
Re: Agilent E4404B Spectrum Analyzer With Dead PSU Repair
I suspect you live in lightning country, Dave. Southern California where I live is just about the least likely place on the planet for lightning strikes. After damaging at least 2 instruments in the
By Jim Ford · #143782 ·
Re: N9020A
Ah, the E4406A is the one with the hole around 321.4 MHz, isn't it? That could be really annoying if you were working with say, 225-450 MHz, as I was a few years back. I do have it on my wishlist,
By Jim Ford · #143781 ·
Re: HP 140B LVPS -12.6V Not Working
I've been cross-checking the board against the schematic. I thought I had the dot convention correct (emitter) but then the differences between a few of the transistors on the board made me realize
By n4buq · #143780 ·
Re: N9020A
If it helps promote how good these MXA analysers are, there is a nice hardware feature in the IF section of the PSA and the PXA and MXA analysers that helps when making critical dynamic range
By jmr · #143779 ·
Re: N9020A
! :) -- Prof. Thomas H. Lee Faculty Co-Director, SystemX Alliance Director, Stanford-Samsung Research Initiative Allen Ctr., Rm. 205 420 Via Palou Mall Stanford University Stanford, CA
By Tom Lee · #143778 ·
Re: N9020A
That's known as improving your image!
By Peter Gottlieb · #143777 ·
Re: N9020A
That's almost image amplification! -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 420 Via Palou Mall Stanford University Stanford, CA 94305-4070 http://www-smirc.stanford.edu
By Tom Lee · #143776 ·
Re: N9020A
I¡¯d hate to get by without the E4406A, that¡¯s for sure. It sees a lot of use these days looking at L-band signals. But speaking of image rejection¡­ LOL! You get 60-80 dB with the MXA,
By John Miles · #143775 ·
Re: Is it worth looking for a R/3*2 Instrument Controller? - Feedback request
Hi Tony: When I was working many decades ago the cost of any of the HP RMB controllers was very high.? Then Sun came out with a diskless node workstation. HP responded with the 318 Diskless Unix
By Brooke Clarke · #143774 ·
Re: HP 140B LVPS -12.6V Not Working
I would've guessed that the dot marks the collector. At least that was the convention used on all the parts I encountered as a kid. The literature of the day often referred to "the collector dot". But
By Tom Lee · #143773 ·
7761 - 7780 of 151133