HP 8112A, Operating, Programming And Servicing Manual

Page: 55 / 406

Transition Ranges
Up and Down-ranging,
Using the
VERNIER
keys
There are seven overlapping ranges for linear and gauss transitions,
and it is important to note the following:
•
Within any range, the maximum ratio of the leading edge
transition time to the trailing edge transition time is
1 :20
and vice
versa.
•
When you move the currently active slope to higher or lower range
than the non-active slope, the latter will be automatically pulled
into the same range.
Range
Upper
Limit
Range
Lower 6.5
Limit
ns
f S
ms
99.9 999 9.99 99.9 999 9.99
Range
1
:
Range 3
Range 4
Range 5
Range 6
Range 7
50 500
I
5
50
500
I
5
M
f S
�
Figure
4-8.
LEE and TRE ranges
95
95
There is an overlap between all ranges.
When the currently active slope is altered so that it falls within a
range above or below the non-active slope, the value of the non
non-active slope automatically increases/decreases in value by a
factor of
10
or
100,
depending on where it lay within the overlap.
Figure 4-9, Table 4-2 and Table 4-3 illustrate the technique of passing
Range "Break Points".
Operating
4-1 1