How do most telemetry equipment transmit information?

Telemetry equipment primarily transmits information using digital signals because they offer several advantages over other transmission methods. Digital signals are less susceptible to noise and interference, which means that they can maintain data integrity over long distances, making them ideal for applications such as water distribution systems where accurate real-time monitoring is essential.

Additionally, digital signals can easily be compressed and encrypted, allowing for more efficient data transmission and enhanced security. This is particularly beneficial in telemetry applications that require remote monitoring and control, enabling operators to receive consistent and reliable data from various sensors and devices.

In contrast, while analog signals can also be used for telemetry, they may suffer from degradation and are not as effective in managing complex data or long-distance communication. Pneumatic signals and mechanical methods are less common in modern telemetry systems, as they tend to be more cumbersome and less efficient than digital signal transmission. The preference for digital signals in telemetry is therefore a reflection of their reliability, efficiency, and ability to handle modern data demands.