TB 9-6625-2142-40
Table 1. Calibration Description - Continued
Sampling Sweep Unit TD-1161/U (Tektronix, Types 7T11 And 7T11A)
Horizontal timing:
5 ms/div to 10 ps/div in 1, 2, 5 sequence using sweep range and time/div controls
Time/div
Range: 5 s/div to 10 ps/div, using 50 s to 50 ns time position ranges
Equivalent time:
Accuracy: 3%
Random or sequential
mode
Range: 5 ms/div to 0.1 s/div, using 50 ms to 0.5 ms time position ranges
Real time Variable
Accuracy: 50 ms time position ranges: 3%, beginning 250 s after undelayed
time/div
sweep start
5 ms time positions ranges: 3%, beginning 25 s after undelayed
sweep start
0.5 ms time position ranges: 3%, beginning 2.5 s after undelayed
sweep start or after 500 ns from start of displayed portion of
sweep
Variable time/div
Range: Extends fastest sweep rate to at least 4 ps/div. Permits increasing
speed of all sweep rates to at least 2.5 times the calibrated speed.
Triggering:
Internal
Sensitivity: 125 mV to 1 V p-p, 5 kHz to 500 MHz
Sensitivity: 12.5 mV to 2 V p-p, dc to 1 GHz
External 50
Sensitivity: 10 to 500 mV p-p at 1 GHz, 200 to 500 mV p-p at 12.4 GHz
EXT HF sync
1Unless
otherwise specified on sampling head.
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Reference Calibration
Standards Set NSN 4931-00-621-7878. Alternate items may be used by the calibrating
activity when the equipment listed in table 2 is not available. The items selected must be
verified to perform satisfactorily prior to use and must bear evidence of current calibration.
The equipment must meet or exceed the minimum use specifications listed in table 2. The
accuracies listed in table 2 provide a four-to-one ratio between the standard and TI. Where
the four-to-one ratio cannot be met, the actual accuracy of the equipment selected is shown
in parenthesis.
5. Accessories Required. The accessories required for this calibration are common
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure. The following peculiar accessories are also required for this
calibration: 3 mm SMA to BNC jack, Tektronix, Type 015-1018-00, (2 each); 3 mm special
minicoaxial cable, Tektronix, Type 012-0203-00; and extender, Tektronix, Type 067-0589-00.
