| Rohde and Schwarz NRP-Z28 Specification |
| Frequency range |
|
10 MHz to 18 GHz |
Impedance matching (SWR)
and insertion loss |
|
Input
SWR |
Output
SWR35 |
Insertion loss36
( ): typical |
| 10 MHz to 2.4 GHz |
< 1.35 |
< 1.11 |
< 8.0 (7.0) dB |
| > 2.4 GHz to 4.0 GHz |
< 1.45 |
< 1.15 |
< 8.5 (7.5) dB |
| > 4.0 GHz to 8.0 GHz |
< 1.75 |
< 1.22 |
< 9.5 (8.5) dB |
| > 8.0 GHz to 12.4 GHz |
< 1.80 |
< 1.30 |
< 10.5 (9) dB |
| > 12.4 GHz to 18.0 GHz |
< 1.90 |
< 1.30 |
< 11.0 (10) dB |
Power measurement range
RF output |
continuous average |
200 pW to 100 mW (-67 dBm to +20 dBm) |
| burst average |
200 nW to 100 mW (-37 dBm to +20 dBm) |
| timeslot/gate average |
600 pW to 100 mW (-62 dBm to +20 dBm) 1 |
| trace |
10 nW to 100 mW (-50 dBm to +20 dBm) 2 |
Max. power
RF input |
average power |
| 10 MHz to 2.4 GHz |
0.7 W (+28.5 dBm) |
continuous |
| > 2.4 GHz to 8.0 GHz |
0.9 W (+29.5 dBm) |
| > 8.0 GHz to 12.4 GHz |
1.1 W (+30.5 dBm) |
| > 12.4 GHz to 18.0 GHz |
1.3 W (+31.0 dBm) |
| peak envelope power |
7.5 dB above max. average power (for 10 µs) |
| Measurement subranges |
path 1 |
-67 dBm to -14 dBm |
| path 2 |
-46 dBm to +6 dBm |
| path 3 |
-26 dBm to +20 dBm |
| Transition regions |
with automatic path selection 3 |
(-19 -1/+2) dBm to (-13 -1/+2) dBm
(+1 -1/+2) dBm to (+7 -1/+2) dBm |
| Dynamic response |
video bandwidth |
> 50 kHz (100 kHz) |
( ): +15 °C to +35 °C |
| single-shot bandwidth |
> 50 kHz (100 kHz) |
| rise time 10 %/90 % |
< 8 µs (4 µs) |
| Acquisition |
sample rate (continuous) |
133.358 kHz (default) or 119.467 kHz 4 |
| Triggering |
internal |
| threshold level range |
-40 dBm to +20 dBm |
| threshold level accuracy |
identical to uncertainty for absolute
power measurements |
| threshold level hysteresis |
0 dB to 10 dB |
| dropout 4 |
0 s to 10 s |
| external |
see R&S ® NRX base unit, R&S ® NRP-Z3 USB
adapter cable or R&S ® NRP-Z5 USB sensor hub |
| slope (external, internal) |
pos./neg. |
| delay |
-5 s to +10 s |
| hold-off |
0 s to 10 s |
| resolution (delay, hold-off, dropout) |
sample period |
| source |
internal, external, immediate, bus, hold |
| Zero offset |
initial, without zeroing |
( ): typical at 1 GHz
+15 °C to +35 °C
[ ]: 8 GHz to 18 GHz |
| path 1 |
< 505 [600] (100) pW |
| path 2 |
< 52 [60] (10) nW |
| path 3 |
< 5.2 [6] (1) µW |
| after external zeroing 6, 7 |
| path 1 |
< 114 [132] (67) pW |
| path 2 |
< 11 [13] (6) nW |
| path 3 |
< 1,1 [1.3] (0.6) nW |
| Zero drift 8 |
path 1 |
< 33 [44] (0) pW |
| path 2 |
< 3.3 [3.8] (0) nW |
| path 3 |
< 0.33 [0.38] (0) nW |
| Measurement noise 9 |
path 1 |
< 72 [83] (42) pW |
| path 2 |
< 7 [8] (4) nW |
| path 3 |
< 0.7 [0.8] (0.4) nW |
| 1Specifications apply to timeslots/gates with a duration of 12.5 % referenced to the signal period (duty cycle 1:8). For other waveforms, the following equation applies: lower measurement limit = lower measurement limit for continuous average mode / √(duty cycle). |
| 2With a resolution of 256 pixel. |
| 3Specifications apply to the default transition setting of 0 dB. The transition regions can be shifted by as much as -20 dB using an adequate offset. |
| 4Time span prior to triggering, where the trigger signal must be entirely below the threshold level in the case of a positive slope and vice versa in the case of a negative slope. |
| 5Specifications expressed as an expanded uncertainty with a confidence level of 95 % (two standard deviations). For calculating zero offsets at higher confidence levels, use the properties of the normal distribution (e.g. 99.7 % confidence level for three standard deviations). |
| 6Within one hour after zeroing, permissible temperature change ±1 °C, following a two-hour warm-up of the power sensor. |
| 7Two standard deviations at 10.24 s integration time in continuous average mode, with aperture time set to default value. The integration time is defined as the total time used for signal acquisition, i.e. the product of twice the aperture time and the averaging number. Multiplying the noise specifications by √(10.24 s/integration time) yields the noise contribution at other integration times. Using a von Hann window function increases noise by a factor of 1.22. |
| 8Within one hour after zeroing, permissible temperature change ±1 C, following a two-hour warm-up of the power sensor. |
| 9Two standard deviations at 10.24 s integration time in continuous average mode, with aperture time set to default value. The integration time is defined as the total time used for signal acquisition, i.e. the product of twice the aperture time and the averaging number. Multiplying the noise specifications by √(10.24 s/integration time) yields the noise contribution at other integration times. Using a von Hann window function increases noise by a factor of 1.22. |
| 36Between RF input and RF output (test port). |