Products > Test Equipment
Tektronix TDS Scope Field Adjustment Software reverse engineering
charlyd:
Hello great topic this one.. i was curious if we could relate or join forces when it comes to FAS and that also for future units like TDS7000 series.
i will add the link to the topic. i my self did many Field cals with different TDSXXX series and have a setup ready to test ( dos-pc PCII card and more.)
https://www.eevblog.com/forum/testgear/does-anyone-have-a-fluke-(wavetek)-9500-and-5-9530-heads-adjustiment-tds7104/msg4868576/#msg4868576
extra intresting link maybe? http://www.hakanh.com/dl/TDS_pv.htm
TERRA Operative:
I am stepping closer to having my adjustment gear all set up...
I have confirmed that my HP 437B with 8481A Power Sensor pretty much agrees with my Tek SG5030 and SG503 Levelled Sinewave Generators, so that's nice.
I'll have to keep an eye out for an 8482A power sensor so I can measure down to 100KHz (the 8481A ranges from 10MHz to 18GHz, the 8482A ranges from 100kHz to 4.2GHz)
I also recently got another SG504 Levelled Sinewave Generator which I'll need to poke at a bit (my other one is playing silly games and not levelling..) so far it seems pretty ok throughout its range besides a slight unlevelling issue above 1035MHz, but I'll do a bit of an overhaul and spit-polish before I put it to use.
Still have to get the ISA cards working on the Tyan Tiger 100 motherboard, but will keep chipping away at that too.
fenugrec:
--- Quote from: pivous on April 18, 2023, 08:37:47 am ---could you please confirm if the process of recording the measured correction values into the TDS occurs after every measurement or if it occurs only after the completion of a certain measurement sequence?
--- End quote ---
I'm pretty sure it's only updated after a successful sequence. I was dumping the EEPROM after each sequence for comparison purposes, and after a partly failed CH1 HF CAL (some steps were OK), the contents had not changed.
oh2erk:
Ghidra does not seem to handle dos interrupts really good at the moment so disassembly is quite a mess. I need to do similar calibration software for the 2782 spectrum analyzer once I get it fixed. It uses same era software where most of the test information is already plain text. Probably the easiest thing to do is just to re-implement the test sequences with modern programming/scripting language. Then you don't have to worry about old ISA GPIB cards etc and can utilize more modern hardware.
vaualbus:
Hey all, have you made any progress since than?
I still hope that someday we can have a newer software to calib this instrument!
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