Specifications

7
Millimeter-wave source module level-
ing is similar to external detector
leveling. The power level feedback
signal to the ALC circuitry is taken
from the millimeter-wave source
module, rather than the internal
signal generator detector. This feed-
back signal levels the RF output
power at the mm-wave source
module output through the signal
generator’s rear panel source
module interface connector.
Required equipment
• Agilent 83550 series millimeter-wave
source module
• Agilent 8349B microwave amplifier
(required for signal generators
without Option 1EA)
• cables and adapters, as required
Connect the equipment
CAUTION To prevent damage to the
signal generator, turn off the line
power to the signal generator before
connecting the source module inter-
face cable to the rear panel source
module interface connector.
Leveling with a Millimeter-Wave Source Module
1. Turn off the signal generator’s line power.
2. Connect the equipment as shown. Use the
setup in Figure 3-3 for signal generators without
Option 1EA. Use the setup in Figure 3-4 for
Option 1EA signal generators.
Figure 3-3.
External Millimeter-
wave source module
leveling for a signal
generator without
Option 1EA.
LINEOI
INTERNAL PULSE GENERATOR
GATE/PULSE
TRIGGER INPUT
50Ω
VIDEO
OUT
50Ω
SYNC
OUT
50Ω
RF OUTPUT
50Ω
REVERSE PWR
1W MAX 0V DC
!
LP OUTPUT
ALC INPUT
EXT 2 INPUT
EXT 1 INPUT
Sweep/
List
AM
FM/
ΦM
LF Out
Pulse
Utility
MENUS
Save Recall Trigger Help
Mod
On/Off
RF
On/Off
7 8 9
4 5 6
1 2 3
0 .
+/-
Hold
Incr
Set
E8254A
250 kHz – 40 GHz
PSG -A Series Signal Generator
Frequency
Amplitude
ReturnLocalPrint
FREQUENCY
AMPLITUDE
40.000 000 000 000
GHZ
10.00
dBm
MOD
ON
RF
ON
E8349B
Microwave Amplifier
Source
module
RF input
RF output
Leveled
output
RF input
Source module interface
Signal generator
Adapter
(If required)
MM-wave source module
RF output
Microwave
amplifier