R&S SMB Test Procedures
1407.0806.82 1.15 E-5
Non-systematic nonharmonics
Measurement Settings on DUT:
- Test frequencies: 34 MHz, 65.9 MHz, 100 MHz, 143.9 MHz,
264.8 MHz, 529.9 MHz, 1059.9 MHz, 2120.9 MHz, 3000 MHz,
4241.9 MHz
- Test level 0dBm unmodulated
Recommended settings on analyzer:
- Max peak detector
- Filter Type: FFT
- Ref-Level 0 dBm
- Set analyzer center frequency to the test frequency, span to
40 MHz and resolution bandwidth to 2 kHz
- Measure carrier level P
- all signals other than the carrier must be below P – 70 dB
- Set analyzer span to 100 kHz and resolution bandwidth to 200 Hz
- all signals other than the carrier must be below P – 70 dB
Note: Some of the nonharmonics suppression values to be
measured might be outside analyzer specifications. In
case of doubt, repeat the measurement with a 3 dB
attenuator pad at the analyzer input. If the nonharmonics
suppression changes the nonharmonics are due to the
analyzer. Because of the bell-shaped noise of the
analyzer near the carrier, smaller resolution bandwidths
may have to be used. To exclude amplitude independent
nonharmonics of the analyzer, use a second generator
with different synthesis architecture.
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