P306/P307 Integrator’s Guide
Chapter 2-Board Overview
Page 21 of 39
Table 2-4: P306/P307 speed radar output availability
Shielding
The P306/P307 are sensitive instruments. When integrated into an enclosure, the P306/P307
requires shielding from other electronics to ensure optimal operation. The P306/P307 shield
design consists of a thin piece of metal with specific diameter holes, preventing harmful
interference from penetrating, while still allowing air circulation for cooling.
Receiver Mounting
The P306/P307 are precision instruments. To ensure optimal operation, consider mounting the
receiver in a way to minimize vibration and shock.
When mounting the P306/P307 immediately adjacent to the GNSS antenna, Hemisphere GNSS
highly recommends shielding the board from the LNA of the antenna. This step can be more
complex than some integrators initially estimate. Attempt to confirm the operation in your
application as early in the project as possible.
Thermal Concerns
The P306/P307 consumes a few watts of power, which ultimately will generate heat. Since this
may raise the ambient temperature inside an enclosure consider managing the heat inside the
enclosure to ensure the internal temperature does not exceed the maximum operating
temperature for the P306/P307.
Some suggestions for heat management are heat sinks, heat conductive foam, or use a small
cooling fan possibly using a thermal switch. Air moving over the P306/P307 removes heat very
effectively.
.
Eclipse Board
Speed Radar
Pulse
Speed Radar Ready Signal
Eclipse (P306)
Pin 25
Pin 26
Eclipse (P307)
N/A
N/A
Note:
Neither pin has any form of isolation or surge protection. If utilizing the Speed Radar
Pulse output, Hemisphere GNSS strongly recommends incorporating some form of isolation
circuitry into the supporting hardware. Contact Hemisphere GNSS Customer Support for an
example of an optically isolated circuit.
Summary of Contents for P306
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