Single-band

Single-band refers to a communication or data transmission system, device, or technique that operates using a solitary, pre-defined frequency band. Unlike multi-band systems, which utilize multiple frequency ranges, single-band technology is characterized by its simplicity and focused operation within a specific portion of the electromagnetic spectrum. This can affect signal transmission, coverage area, data transfer rates and the types of information that it can convey. It is often associated with systems where bandwidth efficiency is not a primary concern, or where other factors, such as hardware cost or signal processing complexity, are prioritized.

Single-band meaning with examples

• Early cordless phones often employed single-band technology, transmitting voice signals on a single radio frequency. This simplified their design and lowered manufacturing costs. However, limited frequency availability could lead to interference, and signal range was often restricted. Newer phones use multi-band, so you might not even know. It's probably what you've got now, right?
• A single-band radio receiver, designed for a specific amateur radio frequency, might offer excellent sensitivity within its narrow operating range. This focused design, however, would prevent it from receiving signals from other frequencies. The simplicity and lower component count make it a cost-effective solution for enthusiasts. Many modern ham radio systems utilize much broader band widths though.
• Some older satellite communication systems may use single-band transmission for uplink and downlink signals. This approach can be less efficient in terms of bandwidth utilization. Nevertheless, it allows the use of simpler, less expensive ground stations. Multi-band systems have now mostly replaced these, since they are far more useful for things like data.
• Industrial sensors, transmitting data over short distances, sometimes rely on single-band wireless communication. This is due to the simplicity of the transceiver design, reduced power consumption, and limited need for a wide range of operational frequencies. However, the limited spectrum also restricts the data throughput they can send, sometimes.