Calibration— Type 1L20
Fig. 6 -6 . Setup for adjusting Resolution (Step 4 ) .
3. Check Dispersion Linearity
a. Set up the equipment as directed in Steps 2a through
2d.
b. A t each DISPERSION/CM setting of Table 6-1, readjust
the front-panel DISP CAL adjustment to align markers with
the first and ninth graticule lines. (See Fig. 6-5.) The IF
CENTER FREQ controls may be rotated slightly aw ay from
center to position a marker at the first graticule line.
c. All markers between the first and ninth graticule lines
should be within 2.4 millimeters of the appropriate grati
cule lines.
4. Adjust Resolution
O
a. Connect the equipment as shown in Fig. 6-6. (The
test oscilloscope probe is on Pin B o f the IF Chassis square-
pin connector board.)
b. Preset the controls of the Spectrum Analyzer as fo l
lows:
POS
IF ATTEN
DISPERSION RANGE
DISPERSION
Position the trace to the
bottom line of the grati
cule
All OFF
kHz/CM
50
RESOLUTION
VIDEO FILTER
VERTICAL DISPLAY
RF INPUT
Fully Clockwise
O ff (Down)
LIN
BANDS 2-5
c. Set the Analyzer oscilloscope sweep to 20mS/CM;
set the test oscilloscope sweep rate to 50mS/CM; and set
the Time-Mark Generator for a 200 MHz signal.
Fig. 6 -7 . Location of Resolution adjustments (Step 4 ) .
6-8
Содержание 1L20
Страница 4: ...Type 1L20 Fig 1 1 Type 1L20 Spectrum Analyzer...
Страница 16: ...NOTES...
Страница 18: ...Fig 3 1 Block Diagram of the Type 1L20 N Circuit Description Type 1L20...
Страница 32: ...Maintenance Type 1L20 4 10 Fig 4 6 Phase Lock and Recorder Detector Circuit Boards...
Страница 42: ...Calibration Type 1L20 4B 40 4D 4E 6 2 Fig 6 1 Recommended equipment for calibrating the Type 1L20...
Страница 43: ...Calibration Type 1L20 10 11 12 13 14 15 6 3 Fig 6 2 Recommended Calibration tools and equipment...
Страница 94: ......
Страница 97: ...N0I133S 3H ZHU i...
Страница 98: ...TYPE IL LO SPECTRUM ANALYZER A P H A S E LO C K U S C IR C U IT 2 PHASE LOCK CIRCUIT...
Страница 100: ...T 1 SW EEPER CIRCUITS...
Страница 102: ...N B IFA M PL 70 MHz OSC 6...
Страница 103: ...I o o z o o 5 1166 TYPE IL Z 0 IL 3 0 SPEC TR U M ANALYZER A VARIABLE RESOLUTION CIRCUITS T V A R IA B L E RESOL...
Страница 104: ...5 M H z AM PLIFIE R D E TECTO RS TYPE IL Z O IL 3 0 S P E C T R U M ANALYZER A OUTPUT AMPLIFIER OUTPUT AMPLIFIER...
Страница 105: ...TYPE 1L20 SPECTRUM ANALYZER...
Страница 106: ...FIG 2 REAR CHASSIS TYPE 1L20 SPECTRUM ANALYZER 1 F IG 2...
Страница 107: ...FIG 3 IF CHASSIS T i T L A TYPE 1L20 SPECTRUM ANALYZER F I G 3...
Страница 108: ...FIG 4 LOW PASS FILTER PHASE LOCK ASSEMBLY FIG 4...
Страница 110: ...OPTIONAL ACCESSORIES TYPE 1L20 SPECTRUM ANALYZER...
Страница 112: ...TYPE 1L20 TYPE 1L30 PARTS LIST CORRECTION CHANGE TO R823 30 0181 00 180 a 1W 10 Cl 366...