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In digital communications, the SD20 is useful for viewing and triggering on the clock signal without the use of a power divider. | In digital communications, the SD20 is useful for viewing and triggering on the clock signal without the use of a power divider. | ||
</blockquote> | </blockquote> | ||
* [http://w140.com/72nd_ARFTG_Conference_CD.pdf Harper, Ridler, and Salter Paper Discussing TDR with SD-20 (PDF)] | |||
<gallery> | <gallery> | ||
Image:Tek sd-20.jpg | Image:Tek sd-20.jpg | ||
</gallery> | </gallery> |