Specifications and Characteristics 3
U2000 Series Operating and Service Guide 53
Zero Set, Zero Drift, and Measurement Noise
Average only Mode
For U2000/1/2A,
For U2004A,
For U2000/1/2H
,
Range
1
Zero Set (Internal) Zero Set (External) Zero Drift
2
Measurement
Noise
3
–60 dBm to –35 dBm ±1.5 nW ±600 pW 200 pW 1 nW
–38 dBm to –15 dBm ±2 nW ±1.5 nW 400 pW 1.5 nW
–20 dBm to –6.5 dBm ±12 nW ±10 nW 1.5 nW 15 nW
–7.5 dBm to –2 dBm ±2 µW ±500 nW 50 nW 650 nW
–4 dBm to 15 dBm ±4 µW ±1 µW 500 nW 1 µW
10 dBm to 20 dBm ±6 µW ±5 µW 2 µW 10 µW
Range
1
Zero Set (Internal) Zero Set (External) Zero Drift
2
Measurement
Noise
3
–60 dBm to –35 dBm ±2.8 nW ±600 pW 200 pW 1 nW
–38 dBm to –15 dBm ±3 nW ±1.5 nW 400 pW 1.5 nW
–20 dBm to –6.5 dBm ±12 nW ±10 nW 1.5 nW 15 nW
–7.5 dBm to –2 dBm ±2 µW ±500 nW 50 nW 650 nW
–4 dBm to 15 dBm ±4 µW ±1 µW 500 nW 1 µW
10 dBm to 20 dBm ±6 µW ±5 µW 2 µW 10 µW
Range
1
Zero Set (Internal) Zero Set (External) Zero Drift
2
Measurement
Noise
3
–50 dBm to –25 dBm ±15 nW ±8 nW 2 nW 10 nW
–28 dBm to –5 dBm ±20 nW ±20 nW 4 nW 15 nW
–10 dBm to 3.5 dBm ±120 nW ±100 nW 15 nW 150 nW
2.5 dBm to 8 dBm ±20 µW ±20 µW 500 nW 6.5 µW
6 dBm to 25 dBm ±40 µW ±30 µW 5 µW10 µW
20 dBm to 30 dBm ±60 µW ±60 µW 20 µW 100 µW
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