HP 8642A Operation And Calibration Manual

Operation
Model 864 2A/B
Special Functions (cont'd)
DETAILED DESCRIPTIONS OF ALL SPECIAL FUNCTIONS (cont'd)
248. Calibrate the Modulation Frequency Bands Again. This special function enables you to initiate the
calibration sequence that normally only occurs during instrument power up. This function can be used,
for example, to recalibrate the modulation oscillator frequency bands if normal modulation frequency
correction has been disabled with Special Function 113 Cali bra tiOll typically takes one to two seconds.
Refer to Modulation Frequency, page 3 -133.
249. Display Firmware Information. This special function displays the current firmware version with a
message such as
"YYMMDD = FIRMWARE CODE .13". In this example YYMMDD represents the
numbers that will appear in the display where YY is the last two digits of the year, MM is the number of
the month, and DD is the day of the month. For example, 84122 5 would be December 25, 1984.
250. Phase Adjustment from Knob and Step Up and Step Down Keys. This function enables control over
the RF signal's output phase in one degree steps using either the Knob or Step keys.
251. Clear Reca II Registers. This special function clears all recall registers.
3-176

HP 8642A Specifications

General

Brand	HP
Model	8642A
Category	Inverter
Language	English