Internal Leveling: Power is leveled at the output connector
in all modes.
External Leveling:
External Detector:
Levels output power at a remote de-
tector location. Accepts a positive or negative 0.5 mV to
500 mV input signal from the remote detector. EXT ALC
ADJ adjusts the input signal range to an optimum value.
BNC connector, front and rear panel.
External Power Meter:
Levels output power at a re-
mote power meter location. Accepts a
±
1V full scale input
signal from the remote power meter. EXT ALC ADJ ad-
justs the input signal range to an optimum value. BNC
connector, front and rear panel.
External Leveling Bandwidth:
30 kHz typical in Detector mode.
0.7 Hz typical in Power Meter mode.
User Level Flatness Correction:
Number of points: 2 to 801 points per table
Number of tables: 5 available
Entry modes: GPIB power meter or computed data
CW POWER SWEEP
Range: Sweeps between any two power levels at a single
CW frequency.
Resolution: 0.01 dB/step
Accuracy: Same as CW power accuracy.
Step Size: User-controlled, 0.01 dB to the full power range
of the instrument.
Step Dwell Time: Variable from 1 ms to 99 seconds. If the
sweep crosses a step attenuator setting, there will be a
sweep dwell of approximately 20 ms to allow setting of the
step attenuator.
SWEEP FREQUENCY/STEP POWER
A power level step occurs after each frequency sweep.
Power level remains constant for the length of time required
to complete each sweep.
REMOTE OPERATION
All instrument functions, settings, and operating modes (ex-
cept for power on/standby) are controllable using commands
sent from an external computer via the GPIB (IEEE-488
interface bus).
GPIB Address: Selectable from a system menu
IEEE-488 Interface Function Subset:
Source Handshake:
SH1
Acceptor Handshake:
AH1
Talker:
T6
Listener:
L4
Service Request:
SR1
Remote/Local:
RL1
Parallel Poll:
PP1
Device Clear:
DC1
Device Trigger:
DT1
Controller Capability:
C0, C1, C2, C3, C28
Tri-State Driver:
E2
GPIB Status Annunciators: When the instrument is oper-
ating in Remote, the GPIB status annunciators (listed below)
will appear in a window on the front panel LCD.
REMOTE:
Operating on the GPIB (all instrument front
panel keys except for the SYSTEM key and the RETURN
TO LOCAL soft-key will be ignored).
LLO (LOCAL LOCKOUT):
Disables the RETURN TO
LOCAL soft-key. Instrument can be placed in local mode
only via GPIB.
Emulations: The instrument responds to the published
GPIB commands and responses of the Wiltron Models 6600,
6700, and 6XX00-series signal sources. When emulating
another signal source, the instrument will be limited to the
capabilities, mnemonics, and parameter resolutions of the
emulated instrument.
PERFORMANCE
SPECIFICATIONS
680XXB OM
B-5
Summary of Contents for 680 B Series
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