> ## Documentation Index > Fetch the complete documentation index at: https://docs.solidyne.ar/llms.txt > Use this file to discover all available pages before exploring further. # About MONO Broadcasting > Strategic use of mono/stereo switching ## Introduction **Monaural** broadcasting, while not a widespread practice, is used by some FM stations located in cities with **high congestion** and limited control/regulation of the electromagnetic spectrum. When the broadcast content is primarily **spoken word** (magazines, news, sports, journalistic programs), stereo transmission offers no significant advantages, as its benefit is mainly limited to music. ## Technical advantages of mono mode * Improves station **coverage range**. * Significantly reduces **interference**. * The energy that in stereo is dispersed across a wider bandwidth is concentrated in just **one quarter of the bandwidth** in mono. * This increases **effective on-air power by up to 4 times** (*NAB Engineering Handbook*). * Improves **coverage** by reducing: * Interference from nearby stations. * Multipath distortion in urban areas. 542 Mono Jp ## Strategic use of mono mode Mono transmission can be used in a **programmed** way to: * Improve reception and coverage during **talk show programs**. * Compete for audience in time slots where intelligibility is more critical than musicality. * Alternate between **mono and stereo** based on broadcast content or schedule. ## Ways to switch to mono * **By preset:**\ Each preset can include an attribute that activates MONO mode when selected.\ The processor will remain in MONO until modified by a new preset. * **Microphones on-air (GPI):**\ Using the GPI input, switch to a **VOICE** preset with MONO mode activated.\ (See **GPIO** section for more details). * **Manual control:**\ Through the **Lite Commander** control application. * **Automatic scheduling:**\ Through programming in **Lite Commander**.