GENERAL INFORMATION
1-13
Amplitude modulation
Specifications apply for carrier frequencies from 2 MHz up to 2 GHz, usable to 4 GHz,
and in ACP and Noise modes.
Maximum specified output power is reduced by 2 dB, ≤ 10 MHz for 'No attenuator'
Option 001 with AM selected.
Modulation depth: 0 to 99.9%
Displayed resolution is 3 digits or 0.1%
Accuracy at 1 kHz rate: ± 4% of set depth ± 1% excluding residual AM
AM bandwidth (1 dB):
1 dB DC to 200 kHz (DC coupled, 100 kΩ)
10 Hz to 200 kHz (AC coupled, 100 kΩ)
3 dB DC to typically 30 MHz (DC or AC coupled, 50 Ω)
Typical AM bandwidth
Total harmonic distortion: At 1 kHz modulation rate:
< 1% for depths up to ≤ 30%
< 2% for depths up to ≤ 80%
FM on AM: Typically < 20 Hz for 30% AM depth at a modulation rate of 1 kHz and carrier frequency
of 500 MHz
ΦM on AM:
Typically < 0.02 radian for 30% AM depth at a modulation rate of 1 kHz and carrier
frequency of 500 MHz
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