Amplitude Specifications (continued)
Display range
Log scale
0.1 to 1 dB/division in 0.1 dB steps 1 to 20 dB/division in 1 dB steps (10 display divisions)
Linear scale
Scale units
10 divisions
dBm, dBmV, dBµV, dBmA, dBµA, V, W, A, dBµV/m, dBµA/m, dBpT, dBG
Frequency response (10 dB input attenuation, 20 to 30 °C, preselector centering applied above 3 GHz)
E4443A/E4445A/E4440A
3 Hz to 3 GHz
± 0.38 dB
± 1.50 dB
± 2.00 dB
± 2.50 dB
± 0.38 dB
± 1.50 dB
± 2.00 dB
± 2.50 dB
± 1.75 dB
± 2.50 dB
± 0.53 dB
± 0.69 dB
± 0.70 dB
(± 0.11 dB typical)
(± 0.6 dB typical)
(± 1.0 dB typical)
(± 1.3 dB typical)
(± 0.15 dB typical)
(± 0.6 dB typical)
(± 1.2 dB typical)
(± 1.3 dB typical)
(± 0.6 dB typical)
(± 1.0 dB typical)
3 GHz to 6.6 GHz
6.6 GHz to 22 GHz
22 GHz to 26.5 GHz
3 Hz to 3 GHz
E4447A/E4446A/E4448A
3 GHz to 6.6 GHz
6.6 GHz to 22 GHz
22 GHz to 26.8 GHz
26.4 GHz to 31.15 GHz
31.15 GHz to 50 GHz
Frequency response at attenuation ≠ 10 dB 10 MHz to 2.2 GHz
(Atten = 20, 30, or 40 dB)
Preamp on (Option E444xA-1DS),
(for all models)
2.2 GHz to 3 GHz
100 kHz to 3 GHz
< (± 0.30 dB typical)
Preamp on (Option E444xA-110,
0 dB input attenuation)
10 MHz to 3.0 GHz
3.0 to 6.6 GHz
6.6 to 13.2 GHz
13.2 to 19 GHz
19 to 26.5 GHz
10 MHz to 3.05 GHz
3.0 to 6.6 GHz
6.6 to 13.2 GHz
13.2 to 19 GHz
19 to 26.5 GHz
26.5 to 31.15 GHz
31.15 to 50 GHz
± 1.0 dB
± 1.75 dB
± 3.0 dB
± 3.0 dB
± 4.0 dB
± 1.3 dB
± 2.5 dB
± 2.5 dB
± 3.0 dB
± 4.0 dB
± 3.0 dB
± 3.5 dB
(± 0.35 dB typical)
(± 0.8 dB typical)
(± 1.0 dB typical)
(± 1.2 dB typical)
(± 2.0 dB typical)
(± 0.5 dB typical)
(± 1.0 dB typical)
(± 1.2 dB typical)
(± 1.5 dB typical)
(± 2.0 dB typical)
(± 1.2 dB typical)
(± 1.6 dB typical)
E4443A/E4445A/E4440A
E4447A/E4446A/E4448A
Input attenuation switching uncertainty (Attenuator setting ≥ 2 dB)
At 50 MHz
± 0.18 dB
± 0.053 dB typical
± 0.3 dB nominal
± 0.5 dB nominal
± 0.7 dB nominal
± 1.0 dB nominal
3 Hz to 3 GHz
3 GHz to 13.2 GHz
13.2 GHz to 26.5 GHz
26.5 GHz to 50 GHz
Total absolute amplitude accuracy (10 dB attenuation, 20 to 30 °C, 10 Hz ≤ RBW ≤ 1 MHz, input signal –10 to –50 dBm,
all settings auto-coupled except Auto Swp Time = Accy, any reference level, any scale)
At 50 MHz
± 0.24 dB (± 0.06 dB typical)
± (0.24 dB + frequency response), ± (0.06 dB+
frequency response) typical
± 0.19 dB
At all frequencies
3 Hz to 3 GHz (95ꢁ confidence)
Preamp on (Option E444xA-1DS)
Preamp on (Option E444xA-110)
± (0.36 dB + frequency response), ± (0.09 dB+ frequency response) typical
± (0.40 dB + frequency response), ± (0.15dB + frequency response) typical
10