
AM measurements using the HP 11729C Option 130
For AM Noise measurements please refer to the Signal Source Applications
chapter "AM Noise Using an HP 11729C" in the HP 3048A Operating
Manual.
Considerations When Using a Down Converter
The HP 11729C with the HP 3048A cannot measure frequencies within
5 MHz of the selected comb line frequency.
The HP 11729C typically causes the measured noise to tip up close to
40 MHz offset. This is due to the parametric amplification of noise by the
step recovery diode.
Spurs are not specified for the HP 11729C.
Down Converters 6-43
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