Frequency Specifications
Frequency range
E4443A
E4445A
E4440A
E4447A
E4446A
E4448A
(DC coupled)
(DC coupled)
(DC coupled)
(DC coupled)
(DC coupled)
(DC coupled)
3 Hz to 6.7 GHz
3 Hz to 13.2 GHz
3 Hz to 26.5 GHz1
3 Hz to 42.98 GHz
3 Hz to 44 GHz1
3 Hz to 50 GHz1
(AC coupled)
(AC coupled)
(AC coupled)
20 MHz to 6.7 GHz
20 MHz to 13.2 GHz
20 MHz to 26.5 GHz1
1. 325 GHz with external mixers
Band
Harmonic mixing mode (N)
0
1
2
3
4
5
6
1–
1–
2–
4–
4–
4+
8–
3 Hz to 3 GHz
2.85 GHz to 6.6 GHz
6.2 GHz to 13.2 GHz
12.8 GHz to 19.2 GHz
18.7 GHz to 26.8 GHz
26.4 GHz to 31.15 GHz
31.0 GHz to 50.0 GHz
Frequency reference
Accuracy
± ±(time since last adjustment x aging rate) + temperature stability + calibration accuracyꢀ
± 1 x 10–7 / year
Aging rate
Temperature stability
20 °C to 30 °C ± 1 x 10–8
± 7 x 10–8
0 °C to 55 °C ± 5 x 10–8
Achievable initial calibration accuracy
Example frequency reference accuracy
1 year after last adjustment
= ± (1 x 1 x 10–7 + 1 x 10–8 + 7 x 10–8)
= ± 1.8 x 10–7
Frequency readout accuracy (start, stop, center, marker)
± (marker frequency x frequency reference accuracy + 0.25ꢁ x span + 5ꢁ x RBW + 2 Hz + 0.5 x horizontal resolution*)
* Horizontal resolution is span/(sweep points – 1)
Marker frequency counter
Accuracy
± (marker frequency x frequency reference accuracy + 0.100 Hz)
± (delta frequency x frequency reference accuracy + 0.141 Hz)
0.001 Hz
Delta counter accuracy
Counter resolution
Frequency span (FFT and swept mode)
Range
0 Hz (zero span), 10 Hz to maximum frequency of model
2 Hz
Resolution
Accuracy
± ±0.2ꢁ x span + span / (sweep points – 1)ꢀ
4
HP [ HEWLETT-PACKARD ]
