Chapter 5Operation Verification
5-1 INTRODUCTION This chapter contains three operation verification tests that can be
used to verify Series 681XXC Synthesized Signal Generator operation.
Setup instructions and performance procedures are included for each
test. The results can be compared with the specified limits that are
shown on the test record forms that are provided for each test.
5-2 TEST EQUIPMENT Table5-1 lists the recommended test equipment for performing the
operation verification tests in this chapter.
5-3 TEST RECORDS Tables5-2 and 5-3 contain test record forms that can be photocopied
and used to record the results of operational verification testing of
your 681XXC. These tables are included as part of the operational
verification test procedures and contain test information for all
681XXC models.

681XXC OM 5-3

Instrument CriticalSpecification Recommended
Manufacturer/Model
Frequency
Counter,
with
CableKit
and
ExternalMixer
Range:0.01 to 65 GHz
InputZ: 50W
Resolution:1Hz
Other:External Time Base
Input
EIPMicrowave, Inc. Models 538B,
548B,or 578B,
with
CableKit: Option 590
and
ExternalMixer:
Option91 (26.5 to 40 GHz)
Option92 (40 to 60 GHz)
Option93 (60 to 90 GHz)
PowerMeter,
with
Power
Sensors
Range:–30 to +20 dBm
(1mWto 100 mW) AnritsuModelML2437A or ML2438A,
with
PowerSensors:
MA2474A(0.01 to 40 GHz)
MA2475A(0.01 to 50 GHz)
Oscilloscope Bandwidth:DC to 150 MHz
VerticalSensitivity: 2 mV/
division
HorizSensitivity: 50 ns/
division
Tektronix,Inc. Model TAS485
Table5-1. Recommended TestEquipment