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Date
Re: HP 11866A APC-7 calibration kit for a VNA.
Thank you John. That is no easy task for someone though. Sepparating the offset (in ps) from the 4 constants in the polynomial descriibing the capacitance is tricky. Dave.
By David Kirkby <david.kirkby@...> · #48704 ·
Re: HP 11866A APC-7 calibration kit for a VNA.
http://www.home.agilent.com/owc_discussions/message.jspa?messageID=54894
By pianovt · #48703 ·
Re: 3457a on the way
Joe, Steve and everyone else, Looking at the memory chip U511 which is a TC5517APL it would appear the standby voltage can be from 2.0 volts up to 5.5 volts with a current draw of around 0.005ua for
By Jeff Machesky · #48702 ·
Re: HP-8657A question
Hello Joe,
By Jose V. Gavila <eb5agv@...> · #48701 ·
Re: 3457a on the way
Shades of MATE. Wonder how that ever turned out. Harvey
By Harvey White · #48700 ·
Re: HP 11866A APC-7 calibration kit for a VNA.
You might be better off sending it to somebody on list to actually measure it. FWIW, -John ==================
By J. Forster <jfor@...> · #48699 ·
HP 11866A APC-7 calibration kit for a VNA.
I've got an 11866A APC-7 calibration kit for a VNA. It's only rated to 2 GHz, but beyond that bit of information, I don't know anything about it. Does anyone have any data on this particular
By David Kirkby <david.kirkby@...> · #48698 ·
Re: HP-8657A question
I guess I am confused. It would appear that the signal has to get through the 60 dB attenuator before it gets to the 80 dB attenuator. Does that mean that when the 0 dB setting is chosen, a 'pad'
By J. L. Trantham · #48697 ·
Re: HP-8657A question
Jose, One other thing. There has been a lot of discussion on the list about the 8657B which is very similar to the 8657A at least up through the HET switch. You might want to have a look in the
By J. L. Trantham · #48696 ·
Re: 3457a on the way
Joe, The SN of my 3457A is 2703A. It is possible that the main controller, since it appears to be a mix of old resistor values and battery but new battery location, may have been replaced as an
By Steve - Home · #48695 ·
Re: HP-8657A question
Hello! Well, I have found an important thing I had missed... the generator HAS output at some amplitude settings. I have then done the test on Service Sheet 8, page 8 of the Service Manual, to
By Jose V. Gavila <eb5agv@...> · #48694 ·
FS: HP 8555A RF section
Hi all. I have a working HP 8555A Spectrum Analyzer RF section "plug-in" module which I don't have any use. If it would fit your needs, please contact me off-list. Picture of the actual
By oh2lak <lakki@...> · #48693 ·
Re: 3457a on the way
Steve, That was me. Thanks. BTW, what is the SN of your 3457A? 2749A? I am suspicious that the ERC code reflects the prefix of the serial number. On my board, 2703 appears and my serial number
By J. L. Trantham · #48692 ·
Re: 3457a on the way
Forgot to add to my last post - I thought someone asked about Option 700. Option 700 adds CIIL language support. Steve
By Steve - Home · #48691 ·
Re: 3457a on the way
Joe, Jeff, and all, I took a few minutes to pull the covers off my unit. My main controller is 03457-66511, Rev A. there is also a sticker that says 2749 just aft of the power switch. I believe
By Steve - Home · #48690 ·
Re: 3457a on the way
Glenn, Thanks for the info but I looked at the website and could find no mention of the LX series. Where did you find it? Joe
By J. L. Trantham · #48689 ·
Re: 3457a on the way
Hmm, I also just noticed I was looking at one of the newer revision circuits. The designs look the same however. I also see where NVVCC goes. One could almost supplement this with a thin film solar
By Jeff Machesky · #48688 ·
Re: HP-8657A question
Jose, I am not familiar with the specific attenuators you show but I suspect that they are hermetically sealed units, similar to the HET switch. The HET switch appears to be the 5061-4820. The
By J. L. Trantham · #48687 ·
Re: HP-8657A question
The large nut tightens down on a collet that clamps the coax. If it is over tightened, it will crush the outer shield and deform it. Maybe even short to the inner conductor? Are any connections loose?
By Tom Miller <tmiller11147@...> · #48685 ·
Re: 3457a on the way
At 04:07 PM 1/1/2013, you wrote Snip Snip some more From the SAFT website: Lithium-manganese dioxide (Li-MnO2) : LX series This is NLA from SAFT, but, you now know the
By Glenn Little · #48686 ·