Technical data

12
86100A/B/C
Firmware Release Notes
normalization to enable faster edges.
• Support for InfiniiMax II Series Probe
• Enables calibration debugging for module vertical calibration.
• Adds a method for stabilizing RJ value for jitter measurements. Remote commands added
for RJ stabilization capability (#200).
• Determines linear feed forward equalizer tap values automatically (#201)
• Adds support for 8xFibre Channel filter rate (86105C #197)
General Firmware Defects Fixed in 4.20
• Repaired probe calibration date disappearing after autoscale or probe calibration on other
channel.
• Fixed autoscale with no channels turned on does nothing. Autoscale now displays a
dynamic text area message when autoscale is performed with no channels activated.
• Repaired autoscale with limit test activated causing software to hang.
• In TDR mode, fixed (:TIM:RANG 6.0E-001 and :MARK:STATe X1Y1,MANual,TRACk)
remote commands sent quickly in succession causing a software crash.
• In TDR mode, resolved transducer settings are not always correct. Channel units picks are
now fixed.
• In TDR mode, delta marker units track channel units, not marker units. This has been
resolved.
• Repaired TDR normalization problem with center time reference. Responses are now
being recalled even if reference is set to 'Center'.
• In TDR mode, resolved normalization staying valid after channel vertical calibration is
performed.
• Provided excess reactance measurement which was not previously available for
differential TDR responses.
• Added a remote query to see if TDR normalization is valid over GPIB.
• In TDR mode, fixed Ohms scale not available on Channel 2 after default setup
• Repaired extinction ratio calibration failing after precision time base is enabled. Extinction
ratio calibration could fail with precision time base on if the horizontal scale was set for
less than one period of the reference clock on screen. The calibration has been modified
so that at least one period of the reference clock is on screen when dark level data is
measured.
• Resolved oscilloscope hanging with 86107A when limit test is turned on. Disabled
acquisition limit when setting the precision time base time reference. Hang no longer
occurs.
• Resolved broken time base calibration. Hardware was left in an inconsistent setting
relative to the control system, causing the next calibration to fail.
• Repaired ASSERTS when dialog is opened and DCA application is minimized. When
minimized, application will be maximized on all front panel events (button press or knob
movement) before event is processed.
• Repaired turning on of pattern lock after undo default setup with 86107A. Changed how
the valid setup is built to account for priorities of controls for pattern lock and precision
time base.
• Resolved application hang from Setup file load with divided trigger on. Reorganized
acquisition limit display update to prevent excessive Windows messages from being
generated and added code to remote commands to gracefully handle failure if occurs when
placing windows messages. Hang no longer happens.
• Repaired release assertion during undo default setup. Fixed interaction between recall
setup, autoscale, and the auto-record length control.
• Fixed combination of TIM:BRAT + :TRIG:RBIT + SYST:MODE JITT causing application