Operating Notes; Frequency Control; Use Of The [User Preset] Key - HP 85106D Manual

Frequency Control

NOTE
Use of the [USER
PRESET] Key

Operating Notes

The system is ready for normal operation once the mm-wave system is
configured according to the instructions in the previous section. The
HP 8510C front panel behaves the same for microwave measurements with
the following exceptions:
Enter start and stop frequencies with the [
keys and the numeric keypad. Due to source resolution frequency entries are
sometimes modified by the HP 8510C. For example, with the U-band system
an entry of 40 GHz may appear as 39.999999996 GHz.
If you are looking at unratioed user parameters (a1, b1, a2, b2) you may see
a discontinuity at the beginning and end of the trace and frequencies where
source 1 is going through a band change, as an example, 0.5 GHz in Q and
U-band, 54 GHz in V-band, and 81 GHz in W-band.
You may press the green [
analyzer to a predefined state that has be determined by you. The preset
function performs all necessary internal network analyzer initialization, then
recalls instrument State 8. [
signal to the other instruments on the system bus.
Factory Preset is another initialization available and is not recommended.
Use the factory preset softkey located under [
{ } to completely reset the instrument state to the factory
FACTORY PRESET
setting.
], [
START STOP
] key at any time to return the network
USER PRESET
] does not send an initialization
USER PRESET
RECALL
HP 85106D mm-Wave System 2-11
Operation
Operating Notes
], [ ], and [ ]
CENTER SPAN
] { } and
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