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Re: HP8566B with YTO unlock indication appears to have no YTO output at all
The original YTO is indeed shot. I swapped in the one from the other A13, and it now runs and the YTO locks, but on a way wrong frequency. I'm assuming it has slipped a cog in the synthesis, that
By ed breya · #152024 ·
Re: BNC that does not have the bayonet lugs
Mike, On the BWD instrument these connectors are recessed deep in an insulator where the rotating part of the mating BNC connector is nestled down inside the same insulator. This prevents any ability
By Greg Muir · #152023 ·
Re: Off Topic - Looking for assistance with power sensors
"Razvan Popescu via groups.io" <yo8ryr@...> writes:
By Sven Schnelle · #152022 ·
Re: BNC that does not have the bayonet lugs
Maybe for a quick connect/disconnect? - Mike Mike B. Feher, N4FS 89 Arnold Blvd. Howell NJ 07731 908-902-3831
By Mike Feher · #152021 ·
Re: HP8566B with YTO unlock indication appears to have no YTO output at all
I swapped out the entire A13 (I think that's the right number) YTO/PLL assembly with one from an old 8566A carcass that I was using for another project. The YTO output was good and strong, but way off
By ed breya · #152020 ·
Re: HP 478A Thermistor Sensor. Input return loss and matching
I spent some time looking at my early 478A sensor again this evening and removed the ferrite (that I had added) and also bypassed the 2.7R damper resistor R1 fitted by HP. I then looked at the return
By jmr · #152019 ·
HP8566B with YTO unlock indication appears to have no YTO output at all
I have never encountered a bad YTO in a 8566, but this might be one. I just got this unit and had some time to check it out, assuming typical small problems. I'll have to bring a scope out to my truck
By ed breya · #152018 ·
Re: BNC that does not have the bayonet lugs
Beyond conjecture..... BNCs used in the BWD 880 PowerScope. Greg
By Greg Muir · #152017 ·
Re: Off Topic - Looking for assistance with power sensors
Hi, Yes, that is correct. The start address formula x*8+9 applies and you can use any address as long as you are following that formula. Practically you can start with your table at address 9. I
By Razvan Popescu · #152016 ·
Re: Optiion upgrade HP 8753C/B
Correction: when running service code 56 it is "OPTION COR FAIL".
By W4PJB · #152015 ·
Re: Optiion upgrade HP 8753C/B
Hello All, Caesar graciously provided me with the option codes to install option 006 on my 8753C several months back. I have finally located an 85047A for a reasonable price, and I am trying to
By W4PJB · #152014 ·
Re: BNC that does not have the bayonet lugs
Already tons of various and diverse messages that are ultimately just conjectures... Paul, please post a photo of the connector you're talking about. Indeed, we often say that a small drawing is worth
By F1EKU · #152013 ·
Re: Off Topic - Looking for assistance with power sensors
"Razvan Popescu via groups.io" <yo8ryr@...> writes: This is likely just coincidence because they are all calibrated by keysight
By Sven Schnelle · #152012 ·
Re: Off Topic - Looking for assistance with power sensors
Hi, I found partially my notes regarding E4413A that I had from a friend. What I did was the following: 1) Before doing any EEPROM sensor operations run the following command to stop the auto trigger
By Razvan Popescu · #152011 ·
Re: Off Topic - Looking for assistance with power sensors
"VeeCal" <Sales@...> writes: Be careful. The EEPROM clock line is shared with the chopper pins. I'm assuming they are using some phantom powering of the power sensors electronics. Likely there
By Sven Schnelle · #152010 ·
Re: Off Topic - Looking for assistance with power sensors
"F1EKU via groups.io" <rfconsulting.fr@...> writes: Yes, i reverse engineered the EEPROM format of the E9XXX power sensors because i wanted to
By Sven Schnelle · #152009 ·
Programming codes for option 002 and option 003 for 8663A
We are in the middle of upgrading our software to support the RS FSMR measuring receiver and came across a section of the test for pulse and phase mod that we would like to automate. The current test
By VeeCal · #152008 ·
Re: Off Topic - Looking for assistance with power sensors
Fantastic! Okay, so this makes me feel a bit better. I was thinking I was the only one out here that wanted to try this. Something that has been made abundantly clear to me is to capture the data from
By VeeCal · #152007 ·
Re: Off Topic - Looking for assistance with power sensors
Thank you for the response. Yes, we have a lab that is asking for this but again it is not something I have played with. If you would not mind, I would like to speak to you to get your insights on how
By VeeCal · #152006 ·
Re: Off Topic - Looking for assistance with power sensors
Sorry, correction: for writing this is the right form: "DIAG:DET:EEPR eepromaddress, eepromvalue" (the ? must be removed). BR, G -- Gy?rgy Albert Mob +40-722-304534
By George/Gyorgy Albert · #152005 ·