Up to 700 meters Stable Data-linked Connection in an Open Field is not impossible! : Arad Connectivity MN52H (Nordic nRF52840 module) Bluetooth Module Achieves Breakthrough

[TAIWAN, 21st May. 2025]

1. Test Objectives

• Verify the effective communication range of the MN52H BLE module (Nordic nRF52840 module) in open field conditions.
• Compare communication performance among different antenna types (CHIP / PCB / u.FL).

2. Test Environment

  Outdoor Environment:

• Open and unobstructed area (Line-of-sight)

3. Equipment Required

• BLE Signal Transmitting Device (Emitting Board)
• Test Modules: MN52H-C40, MN52H-P40, MN52H-U40
• BLE Signal Receiving Device
• Test Device: iPhone 7
• Testing Software: LightBlue®

• Distance Measurement & Logging Tools: Google Maps, smartphone GPS positioning

4. Test Parameters

5. Test Procedure

1. Establish a stable BLE connection between the iPhone 7 and the transmitting module, and confirm packet reception. (Confirm data linked.)
2. Record transmission success rate at the starting point.
3. Stay at each distance point for at least 10 seconds and log connection quality.
4. Test the impact of different transmission angles on range performance.
5. Conduct at least three test runs to verify consistency.
6. Record the disconnection distance and the surrounding environmental conditions when the connection drops,

6. Test Records / Results

• Maximum distance comparison under different transmission angles
• Performance comparison table for each antenna type
• Device version and firmware information used in testing
• Anomaly logs (e.g., packet loss incidents)

**************************************Antenna Axis Defined**************************************

*****************************************************************************************************

BN52H Series

Chip ANT (MN52H-C40)

·       Z, -Z : 460, 510 meters

·       Y, -Y : 470, 550 meters

·       X, -X : 410, 430 meters

PCB ANT (MN52H-P40)

·       Z, -Z : 300, 300 meters

·       Y, -Y : 650, 530 meters

·       X, -X : 600, 590 meters

u.FL ANT / PULSE, YAGEO (MN52H-U40)

(ANTX100ETHAB24553)

·       Z, -Z : 270, 270 meters

·       Y : 680 meters

·       X : 680 meters

(ANTX100P011B24003)

·       Z, -Z : 690, 680 meters

·       Y, -Y : 550, 500 meters

·       X, -X : 520, 550 meters

(ANTX100P111B24003)

·       Z, -Z : 690, 580 meters

·       Y, -Y : 490, 460 meters

·       X,  -X : 520, 500 meters