HP 8753E - Page 397

Node 5
lkmp (temperature sensor)
This node registers the temperature of the cavity oscillator which must be
known for effective spur avoidance. The sensitivity is 10 mV/” C. The oscillator
changes frequency slightly as its temperature changes. This sensor indicates the
temperature so that the frequency can be predicted.
Node 6
Integ (ALC leveling integrator output)
Perform step A3 to set up a power sweep on the analog bus. Then press (Meas)
..?... ,;.? ,.=; <?.
&&u”jg&x4g @ Ixl) @iiixz) ggi& SC=.
,.. ..:::.. ..:..:.. ..:: .i .:: . ..A.....
..^..._............~....... i .A i .._......
Node 6 displays the output of the
summing circuit in the ALC loop. Absolute
voltage level variations are normal. When node 6 goes above 0 volts, the ALC
saturation is indicated.
sg6266d
Figure 10-8. Analog Bus Node 6
Service Kay Menus and Error Messages
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