
HA7062D Manual Rev 1.01
www.holzworth.com
Page 57 of 105
Error Message: "
DUT Frequency out of range. Measure DUT & LO's in Inputs menu for validation"
Description
:
The DUT frequency is out of the specified range of the instrument.
Troubleshooting
:
Confirm power is supplied to the DUT. Confirm the DUT frequency at the
analyzer inputs by taking frequency counter & power meter readings using the Inputs menu or
the commands in Appendix A.
Check RF cables/connections. Check that the copper coaxial jumper cables are installed and
properly torqued on the front of the instrument.
A measurement system utilizing up/down conversion will be required if the DUT frequency is
outside of the instrument's range.
Error Message:
"DUT (or DUT2) power too low. Must be above -5dBm" or "DUT (or DUT2) power
too high. Must be below 20dBm"
Description
:
DUT input power is outside range of -5 to +20 dBm.
Troubleshooting
:
A low noise pre-amplifier or attenuation is required to measure DUT's
outside of the specified input power range.
Check power supply and RF cables/connections. Check that the copper coaxial jumper cables
are installed and properly torqued on the front of the instrument.
Error Message:
LO1/LO2 calibration table is not monotonic. Increase frequency counter interval
and re-calibrate LO's.
Description
:
Applies to External LO's only. The LO1/LO2 measured frequency values should
be always increasing, or always decreasing, with respect to the tune voltage.
Troubleshooting
:
Increase the frequency counter interval and re-calibrate LO's. Check LO's for
proper functionality with spectrum analyzer and replace LO's as necessary.
Error Message:
"Invalid Kd value (phase detector constant) supplied by user"
Description
:
Applies to measurement configurations using external phase detectors (mixers)
where users are manually calculating and entering Kd. Kd must be greater than 0.
Troubleshooting
:
Kd is specified in units of 'Volts/radian'. Check calculation. Refer to the
measurement example 'Single Ch. Additive Measurement with External Mixer' for an example
calculation.