TB 9-6625-2124-35
(d) ↑ key, DATA ENTRY BKSP 0.
(28) The FREQUENCY display will indicate 2C8B and the FREQUENCY/TIME
display will indicate F0.
(29) Adjust A7R19 (fig. 8) for multimeter indication of -9.500 V dc (R).
(30) Press keys as listed in (a) through (c) below:
(a) INSTR PRESET.
(b) SHIFT.
(c) CW.
(31) Disconnect multimeter from A7TP3 and A7TP8 and connect to A7TP4 (+) (fig. 8)
and A8TP1 (-). Adjust A7R18 (fig. 8) for multimeter indication of 0.000 V dc (R).
(32) Disconnect multimeter from A7TP4 and connect to A8TP9 (fig. 6). Adjust A8R18
21. Swept Frequency and Marker Accuracy
a. Performance Check
(1) Connect equipment as shown in figure 4.
(2) Press function keys and enter corresponding data on keyboard as listed in (a)
through (j) below:
(a)
INSTR PRESET key.
(b)
START key, DATA ENTRY 10 MHz.
(c)
STOP key, DATA ENTRY 17.5 GHz.
(d)
M1 key, DATA ENTRY 1 GHz.
(e)
M2 key, DATA ENTRY 4 GHz.
(f)
M3 key, DATA ENTRY 8 GHz.
(g)
M4 key, DATA ENTRY 14 GHz.
(h)
M5 key, DATA ENTRY 17 GHz.
(i)
SWEEP TIME key, DATA ENTRY 25 ms.
(j)
POWER LEVEL key, DATA ENTRY 0 dBm.
(3) Press AMPTD MKR and RF BLANK keys to ON.
(4) Adjust oscilloscope controls as necessary to display the TI sweep output. Five
markers will be present on display.
NOTE
A break in oscilloscope trace will be present at each TI band
switch point (2.4, 7.1, and 13.5 GHz).
birdie (notch) appears on oscilloscope display.
(6) Adjust oscilloscope position control to display M1 (first) marker on crt,
increasing oscilloscope horizontal timing setting as necessary.
