Phase Noise Measurement With Pll; Procedure - HP 70427A User Manual

Procedure

NOTE
Tunable Source Operation

Phase Noise Measurement With PLL

Phase Noise Measurement With PLL
This procedure describes how to use the HP 70428A Option 002 Microwave
Source Module (Tunable Source) as the reference source for phase noise
measurements using a phase lock loop.
The microwave source can output a signal between 2.4 GHz and 26.5 GHz in
0.1 Hz steps (see the HP 8662/3A specifications). The output power can be
at least +16 dBm at frequencies below 6.6 GHz and at least +10 dBm at
frequencies up to 25.8 GHz.
This procedure can be used for all HP 3048A software versions.
The HP 70428A Option 002 is not supported by any version of HP 3048A
software; therefore, it must be controlled manually.
The HP 3048A system must be equipped with option 201 which adds a
1.2 GHz to 18 GHz phase detector to the HP 11848A. For measurements
above 18 GHz, the HP 3048A system must also include option H26.
Step 1 - Preset the HP 70428A Option 002
First, make sure the module's ACT indicator is lit. If it isn't, do the
following:
1. Press the key.
DISPLAY
2. Press the
NEXT INSTR
indicator lights.
3. Then, press the
INSTR PRESET
Step 2 - Configure the HP 70428A Option 002
1. Connect the HP 8662/3A:
a. Connect an HP-IB cable between the signal generator and the MMS
mainframe that the HP 70428A Option 002 is installed in.
The HP 70428A Option 002 acts as a controller. There must be no other
controller connected to the bus.
b. Connect an RF cable between the HP 8662/3A's RF OUTPUT and
the HP 70428A Option 002's HP 8662A connector.
5-2 HP 70427A/HP 70428A User's Guide
softkey, repeatedly if necessary, until the ACT
key.