TB 9-6625-2124-24
(5) Press RECALL key and enter data 1 on keyboard. Adjust A4R13 (fig. 11) for
power meter indication of -5.0 dBm (R).
(6) Press RECALL key and enter data 4 on keyboard.
Record power meter
indication.
(7) Press RECALL key and enter data 3 on keyboard. Adjust A4R9 (fig. 11) for
power meter indication of equal difference from +3 dBm as the value recorded in (6) above
but in the opposite direction (R).
(8) Disconnect power meter from RF OUTPUT. Connect 10 dB attenuator to RF
OUTPUT and connect power meter to attenuator.
(9) Press RECALL key and enter data 5 on keyboard. Add power meter indication
to exact value of attenuator (at 50 MHz) and record.
(10) Press RECALL key and enter data 6 on keyboard. Adjust A4R7 (fig. 11) for
power meter indication plus attenuator value (at 2.2 GHz) of equal difference from +10 dBm
as the value recorded in (9) above but in the opposite direction (R).
(11) Press RECALL key and enter data 2 on keyboard. Record power meter indication.
(12) Adjust FREQUENCY VERNIER control to tune TI output frequency to the
start of band 2 (approximately 2.5 GHz).
NOTE
When performing (12) above, a sharp drop in power meter
indication will be observed at the end of band 1 (band
breakpoint). Continue to manually tune TI output frequency
until power meter indication returns.
(13) Adjust A4R12 (fig. 11) for power meter indication equal to value recorded in (11)
above (R).
(14) Press RECALL key and enter data of 3 on keyboard. Record power meter indication.
(15) Repeat (12) above.
(16) Adjust A4R10 (fig. 11) for power meter indication equal to value recorded in (14)
above (R).
(17) Press RECALL key and enter data 6 on keyboard. Record power meter indication.
(18) Repeat (12) above.
(19) Adjust A4R8 (fig. 11) for power meter indication equal to value recorded in (17)
above (R).
(20) Repeat (1) through (19) above until no further adjustment is required.
(21) Connect SWEEP OUTPUT to oscilloscope CH2 input.
(22) Connect semiconductor device to RF OUTPUT and connect oscilloscope CH1
input to semiconductor device.
(23) Press function keys and enter corresponding data on keyboard as listed in (a)
through (e) below:
(a) INSTR PRESET key.
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