User Manual for Oscar GNSS Receiver v2.4
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View from outside to radio
Pin 1: PWR (9~16V DC)
Pin 2: Power GND
Pin 3: RXD
Pin 4: Signal GND
Pin 5: TXD
Table 3.10 Default factory configuration for Radio RS400H3
3.5Radio whip antenna
The 410-470MHz radio whip antenna is to be installed on the TNC port to
transmit or receive signal for the internal radio. This antenna is elastic whip
structure, resistant to bending.