Atec Rohde-Schwarz-FSH Series - Manual (Page 24)

Version 15.01, July 2013
24 Rohde & Schwarz R&S ® FSH4/R&S ® FSH8/R&S ® FSH13/ R&S ® FSH20 Spectrum Analyzer
Max. peak envelope power
Power measurement range
Video bandwidth 4 kHz 0.4 W to 300 W
200 kHz 1 W to 300 W
600 kHz 2 W to 300 W
Measurement uncertainty same as for average power plus effect of
peak hold circuit +18 °C to +28 °C
Error limits of peak hold circuit for burst signals
Duty cycle ≥ 0.1 and
repetition rate ≥ 100/s video bandwidth 4 kHz ±(3 % of measured value + 0.05 W)
starting from a burst width of 200 µs
video bandwidth 200 kHz ±(3 % of measured value + 0.20 W)
starting from a burst width of 4 µs
video bandwidth 600 kHz ±(7 % of measured value + 0.40 W)
starting from a burst width of 2 µs
20/s ≤ repetition rate < 100/s plus ±(1.6 % of measured value + 0.15 W)
0.001 ≤ duty cycle < 0.1 plus ±0.10 W
Temperature coefficient 25 MHz to 40 MHz 0.50 %/K (0.022 dB/K)
40 MHz to 1 GHz 0.35 %/K (0.015 dB/K)
Load matching
Matching measurement range
Return loss 0 dB to 23 dB
VSWR > 1.15
Minimum forward power specifications complied with ≥ 0.4 W 0.06 W
Dimensions (W × H × D) 120 mm × 95 mm × 39 mm
(4.72 in × 3.74 in × 1.53 in)
connecting cable 1.5 m (59 in)
Weight 0.65 kg (1.43 lb)
0 25 20 15 10 5
–4
6
4
2
–2
0
Return loss/dB
Error limits/dB
Error limits for matching measurements.
0.2 0.4 0.7 1 2 3 4
100
200
400
600
800
1000
0
Frequency/GHz
Forward power/W
AVG –10 °C to +35 °C
SWR ≤ 3
AVG +35 °C to +50 °C
SWR ≤ 3
PEAK (max. 10 ms), SWR ≤ 3
AVG –10 °C to +35 °C
SWR ≤ 1.5
Power-handling capacity.