External vs Internal GSM Antenna for Industrial Modem: Which Is Better?
Reliable cellular connectivity is critical in industrial environments. Whether used for remote monitoring, automation systems, IoT gateways, or M2M communication, an industrial modem depends heavily on antenna performance. One of the most common technical decisions engineers and system integrators face is: Should you use an external or internal GSM antenna for your industrial modem ? The answer depends on signal environment, installation constraints, and performance requirements. This technical guide compares both options in detail to help you choose the right solution. Understanding the Role of a GSM Antenna in Industrial Modems A GSM antenna enables the modem to transmit and receive signals over cellular networks (commonly 900/1800 MHz for GSM). In industrial applications, antenna performance directly affects: Signal strength (RSSI) Data stability Transmission speed Latency Network reliability Device uptime Even the most advanced modem cannot perform optimally with...
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