R-Channel External Connection - Agilent Technologies 8719D User Manual

3. lb activate the frequency offset mode, press:
Since the LO (offset) frequency is still set to the default value of 0 Hz, the analyzer will
operate normally.
4. Measure the output power in the R-channel by pressing:
Observe the 13 to 16 dD offset in measured power. The actual input power level to the
R-channel input must be 0 dBm or less, - 10 dDm typical, to avoid receiver saturation
effects. The minimum signal level must be greater than -35 dDm to provide sufficient signal
for operation of the phaselock loop.
5. You cannot trust R channel power settings without knowing about the offset involved.
Perform a receiver calibration to remove any power offsets by pressing:
Once completed, the R-channel should display 0 dBm (-10 dDm, HP 8722D). Changing
power ranges will require a recalibration of the R-channel.
Figure 3-3. R-Channel External Connection
M a k i n g M i x e r M e a s u r e m e n t s ( O p t i o n