Filter (response), E 34 – ETS-Lindgren HI-1710A Microwave Oven Survey Meter User Manual

Page 34

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34

Menu Options, Settings, Command Set

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FILTER

(RESPONSE)

Digital filtering, or response times, changes the response to

rapidly-changing RF or leakage levels; see Theory of Operation on

page 47 for more information.

Menu Option

Setting

Serial Port

Command

RAW (Version 3.XX only)

F0

SLOW

F1

FAST

F2

F?

RAW (Version 3.XX only)

Unfiltered.

SLOW

Equivalent to slow response mode on analog meters. SLOW

is the default setting, and is used for most hand-scanning of microwave

ovens. It responds more slowly to rapidly-changing RF or leakage

levels and tends to average the response to peak levels caused by

oven mode stirring devices. This is designed to meet the

CDRH requirement that an instrument respond to a step CW

microwave input to 90% of its steady state reading within a maximum

of three seconds, while still providing maximum smoothing of

RF peaks.

FAST

Equivalent to fast response mode on analog meters. It is used

to observe rapid variations in RF leakage and to evaluate the effect of

stirrer modulation on leakage.

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