General Echniques - Agilent Technologies 83620A Service Manual

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etting the Fastest weep Time.
Setting the sweep time to 0 milliseconds sets the synthesizer to the fastest
sweep time for the frequency range being swept. Each time the frequency
range is changed, the sweep time must be reset to 0 ms in order to maintain
the fastest sweep time.
weep peed Related Adjustments.
Delay compensation adjustments are a ected by sweep speed. he
adjustments are performed at fast sweep speeds which are the worst case.
All other adjustments are performed at slow sweep speeds; they are not
a ected by sweep speed.
If you have a power problem that occurs only for fast sweep rates, it is
probably a ected by delay compensation or risetime adjustments.
YTM Bandcross Delay Terms.
he Y M Bx Dly terms are either o set or gain terms used only during
multi-band sweeps. A1 denotes the o set term for band 1. B1 denotes the
gain term for band 1. he o set (A) should be adjusted to maximize power
at the beginning of the band. he gain (B) is adjusted to maximize power
toward the end of the band.
General Techniques.
In some adjustments power may peak twice. his is caused by the auxiliary
output masking the true peak. Always adjust to the rst peak (lowest value
of the calibration constant).
If the adjustment has a wide range without any apparent improvement.
Leave it set to the default value.
HP 8360 Adjustments
Amplifier/Multiplier Adjustments
3-33