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Re: How to test a mixer on a hp 8559 plugin in a 853 main frame
When its tuned to freq 000 there's no response
By steven · #49237 ·
Re: "Event logging" T & M equipment?
Dave, I'm not sure how big your budget is, but I've picked up good working older model Dranetz power line analyzers for less than $200 on eBay. There are over 250 listings from them up now. They
By David Speck · #49236 ·
"Event logging" T & M equipment?
Data logging devices are commonplace now days. Many high-end multimeters have such a feature where you can plug the meter up to a power source and record levels over time. But I'm interested in
By Dave C <davec2468@...> · #49235 ·
Re: How to test a mixer on a hp 8559 plugin in a 853 main frame
Do you still get zero MHz response? If so, the 1st IF on are working to at least some degree. Baseline noise on wide RBW means the last IF and video are working. Can you inject some signals into
By WA2SCL_Jeff · #49234 ·
Re: Spectrum Analyzer
Just curious, What do you think of the Advantest SA vs HP or Tektronix brands? Thanks in advance. Jeff M. ________________________________ To: hp_agilent_equipment@... Sent: Thu,
By Jeff Miller <jmelect@...> · #49233 ·
Re: How to test a mixer on a hp 8559 plugin in a 853 main frame
By steven · #49232 ·
Re: 16500 Logic Analyzer Discussion
On Fri, 18 Jan 2013 12:28:35 -0800, you wrote: >(Changing the subject from spectrum analyzers to logic analyzers) > >On Thu, Jan 17, 2013 at 7:51 PM, Harvey White <madyn@...>
By Harvey White · #49231 ·
Re: Foam conductor problems
After taking these boards apart many times the results were always the same, either one or more LEDs and one or more buttons were not working. Every time it was a different set of buttons or LEDs.
By John McClung · #49230 ·
Re: HP 3468 DMM battery change
Did you check the power supply voltages? Joe
By J. L. Trantham · #49229 ·
Re: Failing 3585A Spectrum Analyzer
You would be amazed at how much noise can get into test equipment through the power cord... Corcom filters are nice things, but they do have their limits. -Chuck Harris gldinnc wrote:
By Chuck Harris · #49228 ·
Re: How to test a mixer on a hp 8559 plugin in a 853 main frame
It very well may still be present, but it would be down quite a bit from where it should be, maybe 20 db or more down. I have an 8558 that was about 10 db down and suspected the mixer. Turned out it
By WA2SCL_Jeff · #49227 ·
Re: Failing 3585A Spectrum Analyzer
I traced the source of the spikes to some failing halogen light dimmers. I have replaced them and the problem is all but gone. Why the noise gets in to the 3585 is a mystery, but who cares. I am
By Gordon & Lois Duff · #49226 ·
HP 3570A
Well, the 3570A is not working. The A channel gives amplitude readings that are about 90 dB down from the actual input. The B channel is pretty close in amplitude but the phase is way off. So it
By MAX · #49225 ·
16500 Logic Analyzer Discussion
(Changing the subject from spectrum analyzers to logic analyzers) The problem with a 16500B
By Glen Slick · #49224 ·
Re: HP 3468 DMM battery change
Yeah, I disconnected the battery overnight and shorted the RAM chip Vcc to gnd to clear any leftover capcitance, etc. That had no effect. I'm kind of thinking maybe something was on the verge of
By xyloeye · #49223 ·
How to test a mixer on a hp 8559 plugin in a 853 main frame
If the mixer is bad will there still be a 35mhz calibraed signal on the screen? please let me know asap. thank you
By steven · #49222 ·
Re: HP-8591E Sweep Modes
Thanks, John ... worked great! Jeff
By W8KZW · #49221 ·
Re: Agilent Power Supply
Not exactly their Spanish site but a totally different company. Prologix.com appears to be a logistics company in El Salavador. The maker of the GPIB USB adapters is a small operation that did not
By victor.silva · #49220 ·
Re: Hello, and 16500A memory sizes
The DRAM chips only need one more address line to be 4Mbit rather than 1Mbit (they're a matrix, not a linear array), and that address line (pin 5) is definitely wired up (to one of the PALs, if I
By cmjones01 · #49219 ·
Re: Hello, and 16500A memory sizes
Chris, probably you're missing two addressing lines to upgrade it to 4mb. I think i have a newer board with More memory, but it is some 600km away, i'll take a look at it as soon as i can Enviado
By Alexandre Souza · #49218 ·