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U2044XA Datasheet, PDF (9/25 Pages) Keysight Technologies – U2040 X-Series Wide Dynamic Range Power Sensors
09 | Keysight | U2040 X-Series Wide Dynamic Range Power Sensors – Data Sheet
Specifications
Key specifications
Average power dynamic range
(Average only mode)
Normal mode dynamic range
(Peak mode)
U2041XA/43XA
USB average power sensor
–70 dBm to +26 dBm
N/A
Maximum power
(Damage level)
Zero and calibration
Rise / fall time3
Maximum sampling rate
Power linearity at 5 dB step 1
Average: +29 dBm
Peak: +32 dBm for < 10 µs duration
Voltage: ≤ 20 VDC
Internal zero and calibration
supported
≤ 100 ns
20 Msamples/second continuous
sampling
Average mode: < 1.0%
Average power measurement
accuracy 2
Signal bandwidth
≤ ± 0.21 dB or ± 4.7% for < 30 MHz
≤ ± 0.18 dB or ± 4.1% for ≥ 30 MHz
to ≤ 10 GHz
≤ ± 0.19 dB or ± 4.3% for > 10 GHz
to 18 GHz
Wideband average power
Single shot bandwidth
NA
Minimum pulse width
NA
Maximum capture length
NA
Maximum pulse repetition rate NA
U2042XA/44XA
U2049XA
USB peak and average power sensor LAN peak and average power sensor
–70 dBm to +26 dBm
–70 dBm to +20 dBm
Off: –40 to +26 dBm
High/5 MHz: –40 to +26 dBm
Medium/1.5 MHz: –45 to +26 dBm
Low/300 kHz: –45 to +26 dBm
Average: +29 dBm
Peak: +32 dBm for < 10 µs duration
Voltage: ≤ 20 VDC
Internal zero and calibration
supported
≤ 100 ns
20 Msamples/second continuous
sampling
Average mode: < 1.0%
Normal mode: < 1.3%
≤ ± 0.21 dB or ± 4.7% for < 30 MHz
≤ ± 0.18 dB or ± 4.1% for ≥ 30 MHz to
≤ 10 GHz
≤ ± 0.19 dB or ± 4.3% for > 10 GHz to
18 GHz
VBW for peak power: ≤ 5 MHz 4
Wideband average power
5 MHz
250 ns
1 s (decimated)
6.5 ms (at full sampling rate)
2 MHz (based on 10 samples/period)
Off: –40 to +20 dBm
High/5 MHz: –40 to +20 dBm
Medium/1.5 MHz: –45 to +20 dBm
Low/300 kHz: –45 to +20 dBm
Average: +29 dBm
Peak: +32 dBm for < 10 µs duration
Voltage: ≤ 20 VDC
Internal zero and calibration
supported
≤ 100 ns
20 Msamples/second continuous
sampling
Average mode: < 1.0%
Normal mode: < 1.0%
≤ ± 0.30 dB or ± 6.6% for < 30 MHz
≤ ± 0.23 dB or ± 5.2% for ≥ 30 MHz to
≤ 26.5 GHz
≤ ± 0.27 dB or ± 5.9% for > 26.5 GHz
to ≤ 33 GHz
VBW for peak power: ≤ 5 MHz 4
Wideband average power
5 MHz
250 ns
1 s (decimated)
6.5 ms (at full sampling rate)
2 MHz (based on 10 samples/period)
1.  Any relative power measurement of up to 5 dB will have <1% error, excluding zero set, zero drift and
noise effects. With default aperture and averaging, for power levels above –50 dBm, zero set, zero
drift and noise effects can be disregarded.
2.  For U2041XA/42XA/43XA/44XA, specification is valid over a range of –45 to +26 dBm, DUT Max
SWR < 1.2. For U2049XA, specification is valid over a range of–45 to +20 dBm, DUT Max SWR
< 1.2. For all models, averaging set to 32, in Free Run mode. For power levels below –45 dBm, the
effect of zero drift, zero set and measurement noise have to be considered separately base on the
uncertainty calculation method shown in Appendix A.
3.  With video bandwidth OFF setting and carrier frequency ≥ 300 MHz.
4.  Five MHz video bandwidth is applicable for carrier frequency ≥ 300 MHz. For carrier frequency
< 300 MHz, video bandwidth of LOW/MED is 90 kHz, video bandwidth of HIGH/OFF is 240 kHz.
Refer to Characteristic peak flatness section for details.