HP 85106D, Manual

Page: 91 / 244

3-6 HP 85106D mm-Wave System
Performance Verification
Installation of HP-BASIC and Performance Verification Software
Important
Information For
mm-Wave System
Users
The verification program initializes the system and may change the
instrument state. For mm-wave systems these values must be checked, and
may need to be reset to their initial values. The prompt
Initializing
System Prior to Calibration
appears on the HP 8510 display. Check the
following instrument states before continuing with the calibration procedure.
Your verification will be invalid if these states are set incorrectly.
The following conditions are recalled automatically during verification:
SYSTEM PHASELOCK
Press [
SYSTEM
] {
MORE
} {
SYSTEM PHASELOCK
} {
NONE
}
POWER LEVELING
Press [
SYSTEM
] {
MORE
} {
POWER LEVELING
} {
SOURCE 1:EXT LEVEL
}
{
SOURCE 2:INTERNAL
}.
SOURCE POWER LEVEL
Press STIMULUS [
MENU
] {
POWER MENU
}
{
POWER SOURCE 1}
[
xx
]*
[
x1
} {
POWER SOURCE 2
} [
xx
]*
*Refer to the following table for the correct power level.
Table 3-1 Recommended RF and LO Source Power Levels
Band Q (WR-22) U (WR-19) V (WR-15) W (WR-10)
Power Source #1 (RF)
1
-20 -20 -25 -30
Power Source #2 (LO) +3 +3 +3 +3
WAVEGUIDE DELAY
Cutoff Frequency
26.338 31.396 39.873 59.024
1.
Optimum power level may vary from system to system. Adjust the power
level to the maximum level without an “IF overload” message appearing.
(Refer to “RF Signal Power Control” on page 2-12).