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New Packet Radio and Go Box Deployment in Thailand
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NPR GO BOX Field Test – Success with Observations
Published on January 22, 2025 by Watchara Amasiri
 We are excited to share the results of our second NPR GO BOX field test, which was a success! By reducing the distance to 1.2 kilometers, the system established a stable connection, and the antenna performed flawlessly. We achieved internet speeds ranging from 280 to 410 Kbps, which is a promising step forward in the development of this disaster communication system.

Key Observations:

  1. Stable Connection Achieved: Reducing the testing distance resolved the signal issues encountered in the first test. The connection was stable and reliable.
  2. Antenna Performance Verified: The antenna setup worked as expected, confirming its effectiveness in the field.
  3. Suspicion of RF Linear Amplifier Malfunction: During the test, we noticed potential issues with the RF Linear Amplifier, which may not be functioning as intended. This could impact overall performance in extended range scenarios.

Next Steps:

To further investigate the amplifier's functionality, we will conduct another field test without using the RF Linear Amplifier. This will help us determine whether the amplifier is causing the suspected performance bottlenecks. Additionally, we will continue refining the setup to optimize the NPR GO BOX for deployment in disaster management scenarios.
Photos from the test site and results are attached for your reference. We greatly appreciate your ongoing support and enthusiasm as we work to enhance this innovative system.

Best regards,
Watchara Amasiri
Project Lead, NPR GO BOX Deployment in Thailand 
Watchara Amasiri

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Testing antenna efficiency with the RigExpert AA-600—SWR measurement at 1.20 on 470 MHz indicates excellent performance! 
Watchara Amasiri

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A screenshot from the speed test shows a stable internet speed of 410 Kbps achieved during the test. This result validates the functionality of the NPR GO BOX in providing reliable connectivity under field conditions.
The NPR GO BOX is shown deployed in an outdoor environment, with the bright orange case containing the equipment. A vertical antenna is mounted on a lightweight tripod, demonstrating the portable and practical setup for field operations.