Setting Window Limits; Table 2-6 Range Of Values For Window Limits - Agilent Technologies E4418B User Manual

2 Power Meter Operation

Setting Window Limits

The power meter can be configured to verify the current measurement in
either window against predefined upper and/or lower limit values. The
range of values that can be set for the upper and lower limits and the
default values depends on the measurement units in the currently selected
window, see
The window based limits can also be set to output a TTL logic level at the
rear panel Rmt I/O port when the predefined limits are exceeded. You can
switch the rear panel TTL outputs, on, or off; set the TTL output level to
active high or low; and determine whether the TTL output represents an
over limit condition, under limit condition or both.
The TTL connector is an RJ- 45 Series shielded modular jack assembly
with the TTL output pins connected as shown in
72
Table 2-

Table 2-6 Range of Values for Window Limits

Window Units Max
dB +200 dB
dBm +230 dBm
% 10.0 Z%
W 100.000 XW
6.
Min
–180 dB
–150 dBm
100.0 a%
1.000 aW
Default
MaxMin
60 dB –120 dB
90 dBm –90 dBm
100.0 M% 100.0 p%
1.000 MW 1.000 pW
Figure 2- 13.
E4418B Power Meter User's Guide