Figure 1. Channel isolation - test equipment setup.

Calibration Rrocedure For Vector Voltmeter, Me-512/U And Models 8405A And 8405A-H16 Page Navigation
5

TB 9-6625-2213-24

SELECT LOW PASS FILTER FROM TABLE 2.

PART OF ACCESSORIES KIT, HEWLETT-PACKARD, MODEL 11570A.

(2) Adjust signal generator frequency controls for 410 MHz and then adjust

amplitude controls for 0 dBm indication on measuring receiver.

(3) Adjust TI FREQ RANGE-MHz switch so APC UNLOCKED light goes out and

setting includes measurement frequency.

(4) Set AMPLITUDE CHANNEL switch to A.

(5) Adjust signal generator amplitude controls for a TI meter indication of 0 dB.

(6) Set AMPLITUDE CHANNEL switch to B. The channel B signal amplitude will

not exceed -75 dBm (-80 dBm).

(7) Repeat (2) through (6) above for 600 and 1000 MHz.

(8) Adjust signal generator frequency controls for 1 MHz and amplitude controls for

+13 dBm indication on measuring receiver.

(9) Set TI FREQ RANGE-MHz switch so APC UNLOCKED light goes out and

setting includes measurement frequency.

(10) Set AMPLITUDE CHANNEL switch to A.

(11) Adjust signal generator amplitude controls for a TI meter indication of 1 V rms.

(12) Set AMPLITUDE CHANNEL switch to B. CHANNEL B vector voltmeter

residual noise indication will be equal to or less than 10 V.

(13) Repeat technique of (8) through (12) above for 100 and 300 MHz.