Technical data

15
86100A/B/C
Firmware Release Notes
the noise floor of jitter measurements down to 200 fs in most circumstances.
• Enhancements for 86100A/B/C Mainframes: Allow the 86107A precision time base
modules to operate over continuous frequency bands. No hardware upgrade needed to
existing modules, but customers must either provide their own filter or a clean sine wave
with low total harmonic distortion.
Defects Fixed
• Repaired remote rise time measurement always returns data from lowest channel
• Fixed Remote Command to measure Extinction Ratio Factor (:MEAS...:ERF)
• Resolved Differential TDR Inverted channel marker values reporting incorrect value
• Addressed Auto Scale incorrectly aligns in time when multiple waveforms present on
screen. There is now an optional bit rate parameter for the ":AUToscale" remote command.
If bit rate information provided remotely, autoscale is much more robust (and much
quicker!). Note that this parameter only applies to NRZ eye diagrams and clock signals.
• Repaired start of mask test aligns immediately even without sufficient data. Alignment will
now be postponed up to 5 seconds if there is not enough data to align.
• Added remote command for reading TDR excess reactance. Added :MARKer:REACtance
query command. It returns the value as follows: <reactance_value>,<units> where
reactance value is in scientific notation and units are F or H. When there is no reactance
value, a value of zero is returned and units of F.
• Repaired the remote command Disk:Simage to Network drive breaking after excessive
calls because a network drive resource was being opened and not closed.
• Fixed error in Scope Measurement - :MEASure:DELTatime [source][,source]]. Instrument
behavior is now consistent with documentation.
• Resolved Channel Input-Autoscale failed to send error message on marginally large
signals. The correct notification occurs now for clipped signals.
• Repaired Horizontal scale being incorrect for clock signals while in jitter mode by adjusting
the scales properly.
• Repaired remote command :System:DSP cmd with parameter '%' or '?' does't seem to work
by fixing the instrument parser to recognize some more special characters.
• Fixed color pallet being incorrect when screens are saved in .JPG mode.
• Resolved ?eControl at limit error?f showing up when loading old setups by fixing the
setting with the screen savers. There was a difference between 86100A/B and 86100C
setups.
• Resolved Scope Measurement - :MEASure:TMIN returns Err: -224,Illegal parameter value.
• Repaired Channel Input - :CHAN:FDES? does not return Headers when :system:header on
• Changed default gain settings for 86117A Module Initialization to improve field servicing
• Fixed remote command Trig:Plock:Autodetect turns off pattern lock if autodetect fails
• Corrected Color grade incorrect when loading database memory in oscilloscope mode
• Repaired Histogram - Measure:Histogram:ppos?returns 9.99999E+37 while in TDR mode
• Fixed STM64_OC192SuperFEC_12_5.msk mask file. It should be a scaled version of the
STM-64 OC-192 mask (rectangular, not hexagonal).
• *OPC now operates properly in Jitter Mode. *OPC, OPC? and *WAI should work properly
now when switching to jitter mode using :SYStem:MODE JITTer or :DISK:LOAD
"filename.jd",JDMemory.
• Disable mainframe ID check so 86110A is never reported when the instrument is queried
• Precision time bases 86107 using in geographies with Eastern time zones were reporting
incorrect timebases. Setting the precision timebase time reference is limited in its
repetition rate when pressing the dialog button. The way this timing is done has been
changed so that it is no longer affected by changes to the system clock. Improved
autoscaling with small signal levels
• 83495A Clock Recovery user interface for low loop BW should say 300 kHz not 30 kHz
• Repaired differential TDT normalized individual response looking like wrong scale