Q: What is the field test report of ORS ?

A:

Introduction

This page presents the findings and measurements of the ORS B40 (2350MHz) field tests organised in Auvergne, France.

Equipment features

The field tests were performed using the hardware listed below:

• 1 ORS B40
• 1 OA-J1-P8A omnidirectional antenna
• 2 N cables
• 1 Archos x67 5G
• LowcostMobile RAD5G-ULTRA-7003800
• 1 Oukitel WP30
• 2 KASER LPDA directional antennas
• 2 TPLink MR600 modems
• 1 SMB200 spectrum analyzer
• 1 Gasoline generator

Testing setup

The field tests were conducted thanks to a utility vehicle with a trailer, to which we added a mat to attach the antennas and rotate them freely in the desired direction.

We converted the car's boot into a small office to perform real-time analyses and monitor our operations with a modem, computers and a spectrum analyzer. The installation was powered by the gasoline generator.

The KASER LPDA directional antennas were positioned at this angle to utilize signal reflections for optimal reception from the ORS, ensuring the best possible performance for 2x2 MIMO. Additionally, an antenna connected to a spectrum analyzer in the car was used to verify the signal's form and power levels during the test.

Test 1: Phone in the fields

The first test was conducted using an ORS operating on Band 40 (2350 MHz, 20 MHz bandwidth). The ORS was mounted on a 9-meter-high tree trunk and connected to an OA-J1-P8A omnidirectional antenna via 75 cm coaxial cables.

Testing took place 265 meters away in an open field using two rugged phones, an Archos x67 5G and an Oukitel WP30. The weather conditions were heavy rain, wind, and fog.

Results:

Archos x67 5G with tx gain 80:

• Download speed: 76.3Mbps
• Upload speed: 4.59Mbps

Oukitel WP30 with tx gain 80:

• Download speed: 51.3Mbps
• Upload speed: 8.15Kbps

Test 2: Wind turbines site

The second testing site followed similar parameters for the ORS. We moved to a location 1.9km away from the base station.

The location had sunny but windy conditions and a clear line of sight to the ORS and its omnidirectional antenna. Tests were conducted using the same phones and a Modem connected to KASER LPDA directional antennas. Power was provided using a gasoline generator thoughout the tests.

Results:

Archos x67 5G:

• Download speed: 36.5 Mbps
• Upload speed: 555 kbps

Modem with KASER LPDA antennas:

• Test 1 with TX gain 83: download 100 Mbps, upload 2.65 Mbps, ping 31 ms
•  Test 2 with TX gain 68: download 30 Mbps, upload 2.33 Mbps, ping 33 ms

Test 3: Forest edge

The third test was carried out 4 kilometers from the ORS near the edge of a forest. The weather was cloudy and windy, which added another layer of environmental complexity.

Results with TX gain 83:

Modem:

• Download speed: 87 Mbps
• Upload speed: 1.45 Mbps

Phone:

• Download speed: 29Mbps
• Upload speed: 1.91Mbps

Test 4: Mountain pass 

For the final test, the ORS was relocated to a trailer positioned near a farm, mounted at a height of 3.5 meters to provide a direct line of sight to the testing site 10km away. Internet backhaul was provided by another TP-Link MR600 modem.

We conducted tests on this site over two separate days: the first time under light rain and fog, and the second time during a blizzard. Results below show that environmental factors have a significant impact on the connectivity.

Results with TX gain 83:

Modem, first day:

• Download speed: 27Mbps
• Upload speed: 3Mbps

Modem, second day

• Download speed : 17Mbps
• Upload speed : 10 Mbps

Field tests summary

Conclusion

These field tests provide valuable insights into the ORS B40 performances in various terrains and weather conditions, as well as different User Equipements (UE). They also emphasise the importance of environmental factors, equipment setups and UEs choices in achieving optimal connectivity.