HP Saw E4419B manual Range of Values for Window Limits Max Min Default Units

Power Meter Operation

Setting Measurement Limits

default values depends on the measurement units in the currently selected window - see Table 2-6.

Table 2-6: Range of Values for Window Limits

Window	Max	Min	Default
Units			Max	Min
dB	+200 dB	-180 dB	60 dB	-120 dB
dBm	+230 dBm	-150 dBm	90 dBm	-90 dBm
%	999.9 X%	100.0 a%	100.0 M%	100.0 p%
W	100.000 XW	1.000 aW	1.000 MW	1.000 pW

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 Figure 2-13.

2-48 HP E4419B User’s Guide