A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the RF traces as short as possible and use 50-ohm impedance matching to minimize signal reflections.
Implement frequency hopping, error correction, and data whitening to improve robustness against interference. Also, consider using a shielded enclosure and keeping the antenna away from noisy components.
The maximum transmission distance depends on the environment, antenna design, and output power. In ideal conditions, the SRDA05-6 can achieve up to 10 km (6.2 miles) with a suitable antenna and 20 dBm output power.
Use the low-power mode (LP) and adjust the transmission power, data rate, and packet size to minimize energy consumption. Also, consider using a low-power microcontroller and optimizing the system's sleep modes.
Choose an antenna with a suitable gain, impedance, and radiation pattern for your application. Ensure the antenna is matched to the SRDA05-6's output impedance and consider using a balun or matching network for optimal performance.
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SRDA05-6 Overview
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