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14 Agilent N5161A/62A/81A/82A/83A MXG Signal Generators User’s Guide
Signal Generator Overview Preliminary
Blank Front Panel Display – N5161A/62A MXG ATE Preliminar
FM Frequency modulation is on. If you turn phase modulation on, the ΦM annunciator replaces FM.
I/Q I/Q vector modulation is on.
L The signal generator is in listener mode and is receiving information or commands over the GPIB, USB, or
VXI–11/Sockets (LAN) interface.
M–TONE Multitone waveform generator is on.
MULT A frequency multiplier is set (see “Setting a Frequency Multiplier” on page 109).
OFFS An output offset is set (see “Setting an Output Offset” on page 107).
PN Phase noise interference is on.
PULSE Pulse modulation is on.
R The signal generator is remotely controlled over the GPIB, USB, or VXI–11/Sockets (LAN) interface. When the
signal generator is in remote mode, the keypad is locked out. To unlock the keypad, press Local.
REF An output reference is set (see “Setting an Output Reference” on page 108).
RF OFF The signal generator’s RF Output is not enabled.
S The signal generator has generated a service request (SRQ) over the GPIB, USB, or VXI–
11/Sockets (LAN) interface.
SWEEP The signal generator is currently sweeping in list or step mode.
SWMAN The signal generator is in manual sweep mode.
T The signal generator is in talker mode and is transmitting information over the GPIB, USB, or VXI–11/Sockets
(LAN) interface.
T–TONE Two–Tone waveform generator is on.
UNLEVEL The signal generator is unable to maintain the correct output level. This is not necessarily an indication of
instrument failure; unleveled conditions can occur during normal operation. Another annunciator, ALC OFF,
appears in the same position when the ALC circuit is disabled (see ALC OFF, above).
UNLOCK Any of the phase locked loops cannot maintain phase lock. To determine which loop is unlocked, examine the
error messages (see “Reading Error Messages” on page 74).
WINIT The signal generator is waiting for you to initiate a single sweep.
This annunciator appears when...