Technical data
1 Specifications
6 N1911A/1912A P-Series Power Meters Service Guide
P-Series Power Meter and Sensor 
Key System Specifications and Characteristics
3
 Specification applies only when the Off video bandwidth is selected.
4 
The Minimum Pulse Width is the recommended minimum pulse width viewable on the power 
meter, where power measurements are meaningful and accurate, but not warranted.
5 
Specification is valid over –15 to +12 dBm, and a frequency range 0.5 to 10 GHz, DUT Max. SWR 
< 1.27 for the N1921A, and a frequency range 0.5 to 40 GHz, DUT Max. SWR < 1.2 for the N1922A. 
Averaging set to 32, in Free Run mode.
Maximum sampling rate
100 Msamples/sec, continuous sampling
Video bandwidth
≥
 30 MHz
Single shot bandwidth
≥
 30 MHz
Rise time and fall time
≤
 13 ns (for frequencies 
≥
 500 MHz)
3
, see 
Figure 1-1
Minimum pulse width
50 ns
4
Overshoot
≤
 5 %
3
Average power measurement accuracy
N1921A: 
≤
 ± 0.2 dB or ± 4.5 %
5
N1922A: 
≤
 ± 0.3 dB or ± 6.7 %
Dynamic range
–35 dBm to +20 dBm (> 500 M Hz)
–30 dBm to +20 dBm (50 MHz to 500 MHz)
Maximum capture length
1 second
Maximum pulse repetition rate
10 MHz (based on 10 samples per period)










