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85645A oddities

Question asked by alex.forencich on Jun 30, 2014
I recently acquired an 85645A with firmware revision 920427.  I'm trying to put together a driver library for it, so I am testing out all of the remote commands.  If I send

calibration:sweeptune:setting custom

it changes the sweeptune setting to default.  Conversely, if I send

calibration:sweeptune:setting default

it changes the setting to custom.  What gives?  Is this a firmware bug?  Also, is there a way to read this setting?  If I send


the read times out with no response and I get undefined header and query unterminated errors.  

The device also appears to support *SAV and *RCL correctly, though these commands are not documented in the manual.