Replaceable Parts
Abbreviations Used in Part Descriptions
3-5
Abbreviations Used in Part Descriptions
This section defines the reference designators, and abbreviations, and option numbers that are used in the part descriptions
throughout this chapter.
Reference
Designator
Description
A assembly
AT attenuator
Bfan
BT battery
CPU central processing unit
CW conical washer (screws)
DS lamp
FL flathead (screws)
GPIB general purpose interface bus
Hex hexagonal
J electrical connector; jack
MID microcircuit interface deck
P electrical connector; plug
PN panhead (screws)
Qty quantity
RPG rotary pulse generator
SMI source module interface
TX TORX recess (screws)
W cable; transmission path; wire
Options Description
1E1 Adds output step attenuator for extended range to
-135 dBm
1EA High RF output power +20 dBm at 20 GHz, +14
dBm at 40 GHz
1ED Type-N RF output connector (20 GHz only)
UNJ Improved close-in phase noise
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