{"product_id":"rdl-st-vox1","title":"RDL ST-VOX1 – STICK-ON Voice Operated Relay","description":"\u003ch2\u003eWhat is the RDL ST-VOX1?\u003c\/h2\u003e\n\u003cp\u003eThe RDL ST-VOX1 is a STICK-ON audio controlled relay that switches equipment when a voice signal is present. It suits intercom, talkback and radio push-to-talk applications.\u003c\/p\u003e\n\u003ch2\u003eHow does it work?\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/rdlnet.com\/wp-content\/uploads\/2024\/01\/st-vox1.jpg\" alt=\"RDL ST-VOX1 STICK-ON Voice Operated Relay\" style=\"max-width:100%;height:auto\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe relay can be triggered from mic or line level signals, and in intercom or talkback systems it may be triggered directly from an unbalanced microphone. Where the microphone must be preamplified, RDL pairs it with the \u003ca href=\"https:\/\/creationnetworks.net\/products\/rdl-stm-1\"\u003eRDL STM-1\u003c\/a\u003e preamp, using the STM-1 unbalanced output to trigger the ST-VOX1 and its balanced output for the audio feed. A precise threshold adjustment sets the trigger level, and DPDT contacts handle the switching. An open-collector SLAVE output can control additional equipment.\u003c\/p\u003e\n\u003ch2\u003eWhat are the key features?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice-controlled switching\u003c\/strong\u003e — The relay operates when a voice signal is detected on its input.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMic or line level triggering\u003c\/strong\u003e — Switching can be driven from microphone or line level signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise threshold adjustment\u003c\/strong\u003e — The trigger threshold can be set precisely for the expected signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDPDT switching contacts\u003c\/strong\u003e — Double-pole double-throw contacts switch external equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen-collector SLAVE output\u003c\/strong\u003e — A SLAVE output can control other modules or equipment.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":68025797509356,"sku":"ST-VOX1","price":152.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/st-vox1.jpg?v=1793583961","url":"https:\/\/creationnetworks.net\/products\/rdl-st-vox1","provider":"Creation Networks","version":"1.0","type":"link"}