HA7062D Manual Rev 1.01
www.holzworth.com
Page 38 of 105
9.8 INPUTS
The
Inputs
button allows the user to set the instrument to either Internal or External LO Mode, test
frequency and power of the and LO inputs. It also allows the adjustment for use of the internal or
external DUT Splitter, internal or external DUT Mixer, and subsequently to account for Splitter Loss
and apply a manual Kd calculation.
9.8.1 DUT INPUTS
DUT Splitter:
Select to use the instrument's internal splitter or an external splitter and account
for external splitter loss. The HA7062D internal splitter is a broadband resistive type splitter.
Some measurements may benefit from a narrowband splitter which can provide improved
isolation.
DUT Mixer & Kd:
External mixers can be used with the HA7062D as a means to perform
additive phase noise measurements at frequencies >6GHz.
When using external mixers as phase detectors users must manually determine and enter the
phase detector constant 'Kd' in units of Volts/radian.
Refer to measurement example
11.3
for additional details on measurements with external
mixers.