To Downconvert A Signal Below 26.5 Ghz - HP 70427A User Manual

To Downconvert a Signal Below 26.5 GHz

The input frequency must be entered and the input attenuator and/or the
IF amplifier can be adjusted.
Step 1 - Enter the input frequency
1. Press the
2. Enter the input frequency with the numeric keys.
3. Complete the entry by pressing the appropriate units softkey:
, or
kHz
Figure 2-9 Input Frequency Screen Diagram
The module's firmware will calculate and display the IF and LO frequencies
and tune the YIG-Tuned-Filter (YTF). Tuning can take up to 4 seconds.
Step 2 - Adjust the mixer input level if necessary
1. Press the
2. Press the
3. Press the
4. Enter an attenuation up to 35 dB in 5 dB steps with the numeric keys.
5. Complete the entry by pressing the
To Downconvert a Signal Below 26.5 GHz
softkey.
Freqs
.
Hz
softkey.
Amplitudes
softkey.
more 1 of 2
softkey.
INPUT ATTEN
HP 70427A/HP 70428A User's Guide 2-9
Getting Started
softkey.
dB
, ,
GHz MHz