Troubleshooting poor cellular reception on the G10-S card terminal. Antenna cable integrity, signal attenuation, and external interference checks.
Lower than -90dBm is generally considered poor signal strength.
Relocation or new equipment may cause signal interference.
If all units are affected, the problem may be network related.
Cellular communication relies on radio frequency (RF) signals transmitted and received by an antenna. Signal attenuation can occur due to damaged antenna cables, poor connections, or external interference. EMV terminals require stable power to function within specified RF parameters. Voltage fluctuations can impact cellular modem performance. ESD (Electrostatic Discharge) events, especially in dry environments, can damage sensitive RF components.
Safe Handling: Unplug the power adapter before inspecting any connections. Do not use liquids to clean the device. Static electricity can damage electronic components. Ground yourself before touching any connectors, especially in dry environments. Do NOT attempt to open the device. The G10-S is a secure payment terminal equipped with tamper-detection mechanisms. Opening the casing will permanently damage the device and void any warranties or certifications.
Minimize cable strain on the antenna connection. Keep the area around the terminal free from obstructions that could interfere with the signal. Regularly clean the exterior of the terminal with a dry, non-abrasive cloth to prevent dust buildup. Ensure the terminal is positioned away from potential sources of RF interference, such as microwave ovens or other high-powered electronic devices.
If the G10-S has a user-accessible diagnostic menu, check the reported cellular signal strength (RSSI) value. Consistently low RSSI values indicate a hardware issue or poor signal coverage. An external cellular signal booster may improve reception in areas with weak signal strength. Place the antenna cable away from power cords to minimize interference.