RFD21733 datasheet(69/76 Pages) ETC2

69 / 76 page

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RFD21733 • FCC • IC

RFD21743 • FCC

Approved & Certified

RF Module

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KEYFOBs

The gray area shows where to keep free from copper and components. The one-inch length copper

area is optional, however does improve the range if you can add it. Parts can be placed all over the

rest of the board, however if possible keep about a half-inch distance from the one inch length

ground area to the right of the module, again, only if possible. Solid blue areas are solder side

ground plane which can be used for user electronics as well as the module. These are all optional

configurations and only for reference. The space in the ground plane helps provide some RF

discontinuity for the module to have he best antenna pattern possible in this configuration, the

optimal space to have is greater then 1.2 inches, but some space is better then no space.

RFD21731, RFD21732, RFD21733 - Layout Examples 10

RFD21733 Datasheet(PDF) 69 Page - List of Unclassifed Manufacturers