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SparkFun Electronics will be closed on July 3rd, 2015 in observance of Independence Day. Any orders placed after 2:00pm MT on July 2nd will be shipped out after the weekend. Thanks!

Member #20344

Member Since: June 7, 2007

Country: United States

  • Be careful using the 315 Mhz transmitter near a GPS receiver, The fifth harmonic of 315 MHz is 1575 MHz. 1575 MHz is the GPS carrier frequency. Depending upon your GPS receiver, you can get GPS receiver desensitization or total jamming of the GPS signal.
    For GPS applications, the 434 MHz link is a better choice. For bi-directional links have the GPS send on 434 Mhz and receive on 315 MHz. This get the potentially interfering 315 MHz signal further from the GPS.

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