N8481A AGILENT TECHNOLOGIES, N8481A Datasheet - Page 9

• Manufacturer Part Number: N8481A
• Description: Thermocouple Power Sensor
• Manufacturer: AGILENT TECHNOLOGIES

Specifications of N8481A

• Frequency Max: 18GHz
• Probe Length: 130 Mm
• Frequency Min: 10MHz
• Sensor Terminals: Connector
• Features: Up To 55 DBm Wide Dynamic Range
• Lead Free Status / RoHS Status: na

Performance Characteristics (continued)
Switching point
The N8480 Series power sensors
(excluding Option CFT) have two
measurement ranges: a lower power
range and an upper power range. The
power meter automatically selects
the proper power level range. To avoid
unnecessary switching when the
power level is near the switch point,
switching point hysteresis has been
added.
N8481A/82A/85A/87A/88A
and N8486AQ/AR power
sensors
This hysteresis causes the lower
power range to remain selected until
approximately –0.5 dBm as the power
level is increased. Above this power,
the upper power range is selected.
Likewise, the upper power range
remains selected until approxi-
mately –1.5 dBm as the signal level
decreases. Below this power, the
lower power range is selected.
Power range in range setting
1. Recommended for pulse signals measurement with period of more than one second
Sensor
N8481A/82A/85A/87A/88A and
N8486AQ/AR excluding Option CFT
N8481/2B excluding Option CFT
N8481/2H excluding Option CFT
N8481/2B power sensors
This hysteresis causes the lower
power range to remain selected until
approximately 29.5 dBm as the power
level is increased. Above this power,
the upper power range is selected.
Likewise, the upper power range
remains selected until approxi-
mately 28.5 dBm as the signal level
decreases. Below this power, the
lower power range is selected.
N8481/2H power sensors
This hysteresis causes the lower
power range to remain selected until
approximately 17.5 dBm as the power
level is increased. Above this power,
the upper power range is selected.
Likewise, the upper power range
remains selected until approxi-
mately 16.5 dBm as the signal level
decreases. Below this power, the
lower power range is selected.
Range setting
AUTO (default)
LOWER
UPPER
AUTO (default)
LOWER
UPPER
AUTO (default)
LOWER
UPPER
1
1
1
9
Lower range
–35 to –1 dBm
–35 to –1 dBm
—
–5 to +29 dBm
–5 to +29 dBm
—
–15 to +17 dBm
–15 to +17 dBm
—
Upper range
–1 to +20 dBm
—
–30 to +20 dBm
+29 to +44 dBm
—
0 to +44 dBm
+17 to +35 dBm
—
–10 to +35 dBm