Operating instructions

SPECIFICATION
This
instrument will meet the electrical characteristics listed in Table 2-1, following complete adjustment .
The
following
elec-
trical
characteristics apply over an ambient temperature range of 0 ° to +50 ° C, except as otherwise indicated
. Warmup time
for given accuracy is 20 minutes .
Characteristic
'The fastest calibrated sweep rate is limited by some mainframes .
TABLE 2-1
Electrical Characteristics
SWEEP GENERATOR
Performance Requirement
Section 2-71380
Sweep Rates
Calibrated
Range 5 s/div to 10 ns/div in 27 steps . X10 Magnifier extends
fastest calibrated sweep rate to 1 ns/div .
Variable Range
Continuously variable uncalibrated sweep rate to at least
2 .5 times the calibrated sweep rate setting .
Sweep Accuracy' (With 7700, 7800, or 7900-Series
With SWP CAL adjusted at 1 ms/div within the temperature
Mainframes)
range of +20 ° to +30 ° C to a timing reference of 0 .25% or
better .
Over Center 8 Div +15 ° to +35 ° C
0 ° to +50 ° C
Unmag Mag
Unmag Mag
5 s/Div to 1 s/Div
4 .0% 5 .0% 5 .0% 6 .0%
0 .5 s/Div to 0 .1 ,its/Div 1 .5% 2 .5% 2 .5% 3 .5%
50 ns/Div to 10 ns/Div
2 .5% 4 .0% 3 .5% 5 .0%
Excluded Portions of Sweep
Start of
Sweep First 10 ns in 7800, 7900-series mainframes .
First 20 ns in 7700-series mainframes .
First 50 ns in all other 7000-series mainframes .
End of Sweep Beyond 10th div unmagnified .
Beyond 100th div magnified .
Sweep
Length (Unmagnified) At least 10 .2 div at all sweep rates .
MAG
Registration
0 .5 div or less from graticule center when changing from
MAG X10 to MAG X1 .
Position
Range
POSITION Controls Fully Clockwise Start of sweep must be to the right of graticule center at
1 ms/div .
POSITION Controls Fully Counterclockwise End of sweep must be to the left of graticule center at
1 ms/div .