Introduction
Chapter 1 13
Table 1-5 25 Watt sensors, 1 mW to 25 W (0 dBm to +44 dBm)
Model Frequency 
Range
Maximum SWR Power 
Linearity
a
Maximum Power Connector 
Type
Weight
8481B 10 MHz to 18 
GHz
10 MHz to 
2 GHz: 1.10
2 GHz to 
12.4 GHz: 1.18
12.4 GHz to 
18 GHz: 1.28
+35 dBm to 
+44 dBm: ±4%
0°C to 35°C: 30W 
avg
b
35°C to 55°C: 
25W avg
0.01 to 5.8 GHz: 
500W pk
5.8 to 18 GHz: 
125W pk
500W.µs / pulse
Type-N(m) Net: 0.8 kg 
(1.75 lb)
Shipping: 1.5 kg 
(3.25 lb)
8482B 100 kHz to 4.2 
GHz
100 kHz to 
2 GHz: 1.10
2 GHz to 
4.2 GHz: 1.18
+35 dBm to +44 
dBm: ±4%
0°C to 35°C: 30W 
avg
b
35°C to 55°C: 
25W avg
0.1 to 4,2 GHz: 
500W pk
500W.µs / pulse
Type-N(m) Net: 0.8 kg 
(1.75 lb)
Shipping: 1.5 kg 
(3.25 lb)
a. Negligible deviation except for those power ranges noted.
b. For pulses greater than 30 W, the maximum average power (Pa) is limited by the energy per pulse (E) in W.µs according 
to Pa = 30-0.02 E.
Table 1-6 3 Watt sensors, 100 µW to 3 W (–10 dBm to +35 dBm)
Model Frequency 
Range
Maximum SWR Power 
Linearity
a
Maximum Power Connector 
Type
Weight
8481H 10 MHz to 18 
GHz
10 MHz to 
8 GHz: 1.20
8 GHz to 
12.4 GHz: 1.25
12.4 GHz to 
18 GHz: 1.30
+25 dBm to 
+35 dBm: ±5%
3.5W avg, 
100W pk
100W.µs / pulse
Type-N(m) Net: 0.2 kg 
(0.38 lb)
Shipping: 0.5 kg 
(1.0 lb)
8482H 100 kHz to 4.2 
GHz
100 kHz to 
4.2 GHz: 1.20
+25 dBm to +35 
dBm: ±5%
3.5W avg, 
100W pk
100W.µs / pulse
Type-N(m) Net: 0.2 kg 
(0.38 lb)
Shipping: 0.5 kg 
(1.0 lb)
a. Negligible deviation except for those power ranges noted.