7

Amplitude range . . . . . . . . . . . . . . . . . . . . . . . . .displayed average noise level to +30 dBm

Reference value setting range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –100 dBm to +30 dBm

Level accuracy

at –20 dBm input, 50 MHz, input attenuator: 10 dB, 23 °C ± 5 °C . . . . . . . . . .< ±0.8 dB

Frequency response

at -20 dBm input, input attenuator: 10 dB, referenced to level at 50 MHz, 23 °C ± 5 °C

frequency ≥ 100 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .< ±1.3 dB

frequency < 100 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .< ±3.0 dB

Range

Amplitude fidelity

(dB to reference input lever [dB]

[dB]

0 to –30

±0.05

–30 to –40

±0.07

–40 to –50

±0.15

–50 to –60

±0.35

–60 to –70

±0.8

–70 to –80

±1.8

Displayed average noise level

at reference value ≤ –40 dBm, input attenuator: auto or 0 dB

at frequency ≥1 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –120 dBm/Hz

at ≥ 100 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –133 dBm/Hz

Figure 1-4. Typical displayed average noise level

Amplitude Characteristics

1. Fidelity shows an extent of nonlinearity

referenced to the reference input level.

2. RBW = 10 Hz, –20 dBm ≤ reference value

≤ +30 dBm, reference input level = full scale

input level –10 dB, 23 ± 5 °C

3. At start frequency ≥ 10 MHz

Note: Refer to Input attenuator part for the

definition of full scale input level.

F(H )