Attenuator Options; A25 - Manually Adjustable Attenuator; Ea2- Electronically Controlled Attenuator - Keysight Technologies E8257DS Series User Manual

Millimeter source modules
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E8257DS02-S15
Performance Specifications

Attenuator Options

Attenuator options will slightly degrade the maximum power output from the module.
A25- Manually Ad justable Attenuator
• micrometer controlled
• 25 dB range minimum (not available on the E8257DS02)

EA2- Electronically Controlled Attenuator

Available on the E8257DS12 (only).
• inside modules chassis (controlled by DC voltage)
• increases module size
• 50 dB attenuator range
• use PSG LF Out = DC (0-3.5 V, 110 mA max) to control
— requires PSG Option UNT
• includes 20 dB fixed waveguide attenuator
• includes correction files on USB drive (output power vs frequency & LF voltage)
Figure 3
EA2 Rear Panel
V-tune (PSG LF OUT)
Interface Cable (PSG)
RF Cable (PSG)
6
User's Guide E8251-90283

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