620
Functional Tests
Frequency Response (Flatness), Preamp On
Frequency Response (Flatness), Preamp On
Test Limits
The frequency response test, with preamplifier on, measures the signal
analyzer’s amplitude error as a function of the tuned frequency. Measurements
are made ranging from 50 MHz to the maximum frequency range of the
preamp. The signal source amplitude is measured with a power meter to
eliminate error due to source flatness. The measured value is normalized to 50
MHz.
Frequency Range Limit Relative to 50 MHz
100 kHz to 3.6 GHz ±2.0 dB
> 3.6 GHz to 8.4 GHz ±3.0 dB
> 8.4 GHz to 13.6 GHz ±3.5 dB
> 13.6 GHz to 26.5 GHz ±4.0 dB
Item
Critical Specifications
(for this test)
Recommended
Keysight Model
Adapter, Type N(m) to 3.5
mm(m)
Frequency: 10 MHz to 18 GHz
VSWR: < 1.1:1
1250-1743
Adapter,
3.5 mm(f) to 3.5 mm(f)
Frequency: 10 MHz to 26.5 GHz
VSWR: < 1.1:1
83059B
Cable, 3.5 mm, 1 meter Frequency: 10 MHz to 26.5 GHz
VSWR: < 1.4:1
11500E
Cables, BNC 120 cm Frequency: 10 MHz 10503A
Power Meter Compatible with power sensor E4418B
Attenuator, 30 dB Fixed Frequency: 50 MHz
Accuracy: ±0.05 dB
11708A
Power Sensor Frequency Range: 50 MHz to 26.5 GHz
Amplitude Range: –65 dBm to –55 dBm
8485D
Power Splitter Frequency Range: 50 MHz to 26.5 GHz
Tracking between ports: < 0.25 dB
11667B
Synthesized Sweeper Frequency Range: 50 MHz to 26.5 GHz PSG