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Thanks for the info so far! I have had a closer look and it seems someone has had their sticky fingers in here previously. One screw and the 4 feet are missing, a BNC has been replaced, and one

Jared, just pulled my 355C and D, was curious about your post. Used HP network /Spectrum Analyzer 4195A, and 50 ohm Zo TR sets, with no cable, just BNC adapters. Did TX cal, 10 kHz..500 MHz, at 0 db.

Jared: Have many 355C and D, excellent attenuators. But your readings are so close, the range of error of your setup and instruments will be an issue. EG how close is your source and termination to 50

The only way that I know of is to replace the resistors. One thing to keep in mind is that the readings will be different at higher frequencies, due to capacitance and inductance of the resistor

Hi all, I recently picked up a 355C VHF Attenuator for a cheap price that I was able to repair by cleaning the cam section to allow the mechanism to press on the micro switches reliably (a little

To be clear, there's the "calibration data" which is the result of the unit's self-cal routines, and then there's the "correction constants" which is the characterization of the attenuator, reference

---- In the service manual it tells how to record current calibration constants, most likely you will see random data there. Still worth recording. Section 3 of the service manual describes what to do

Taken on ebay with battery and 0 volt supercap, even the attenuator is broken, it does not complete the amplitude calibration I think for this reason, I will have to replace it with a new one, I hope

I would like a copy also, please. Bob K6DDX

Thank you and yes I would like a copy of the service manual schematic pleaseBillOn Jan 31, 2022, at 1:21 PM, sv1aku via groups.io <sv1aku@...> wrote:Hi Bill, see attached PSU schematic

The manual says that error will occur if there aren't valid amplitude calibration values in use.? Run "CAL FREQ & AMPTD", then store. Was your supercap defective that you replaced it?? Did you

Hi Kirb, I own an HP 8648B but I don't currently have access to it, since I'm not in the lab over the weekend. I could imagine that the attenuator stepping doesn't take place, unless the RF output is

You refer to a book but no link or how to read it alternatively it could be uploaded as a PDF to the file section on this site An alternatively solution to display a diode detector on an analogue

Those pics are from me. As a detector I used Pasternack pe8000-50. Zero Bias Detector, BNC, Positive Video Out, 0.1 MHz to 1 GHz No longer supported. Jos PA0AMX

am trying to repair my 8596E, new battery and supercap, it does autocalibrate in frequency but does not do data stored (cal: data not stored), I ask if the stored should do it regardless of having

OK Paul- all sorted! Thanks DaveB, NZ Sent: Saturday, February 05, 2022 11:52 To: [email protected] Subject: Re: [HP-Agilent-Keysight-equipment] HP 11664A Detector - DIY

Jeff, "The guy" is asking whether you'd be willing to share directions for building a suitable detector for my initial request? :) In my book, DIY is the way, if possible. Thank you much in advance.

Hi ok I made a mistake as quoted the D when I should have quoted C The 11664A is up to 18 Ghz the 11664C is the detector adapter this allows you to use any diode detector with the scaler analyser and

Hi Joe! No can do: apples vs oranges 432 uses RF thermistors, not set up for diodes.73Jeff In a message dated 2/4/2022 5:38:23 PM Eastern Standard Time, joeprice@... writes:?Hi Jeff,? How

Hi all, I have a problem with my E4437B that started gradually as jitter, but now just outputs white noise.? I used to repair ESG RF boards, and know the generators relatively well, but haven't seen