{"product_id":"satlink-st-6503-hdmi-dvb-t-rf-encoder-modulator-catv","title":"SATLINK ST-6503 HDMI to DVB-T RF Encoder Modulator CATV","description":"\n\u003ch2\u003eSATLINK ST-6503 HDMI to DVB-T RF Encoder Modulator\u003c\/h2\u003e\n\u003cp\u003eThe SATLINK ST-6503 is a professional-grade HDMI to DVB-T encoder modulator designed for CATV operators, hotels, hospitals, schools, and broadcast facilities that want to distribute self-produced HD content over existing coaxial cable networks. It converts an HD source signal directly into a DVB-T RF channel using standard COFDM modulation and H.264 encoding — all in a compact, wall-mountable unit. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHD to RF Conversion:\u003c\/strong\u003e Converts HDMI input (720p \/ 1080p) into a DVB-T RF channel for distribution over coaxial CATV infrastructure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard COFDM Modulation:\u003c\/strong\u003e H.264 encoding with COFDM modulation ensures robust, high-quality digital TV signal output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Frequency Range:\u003c\/strong\u003e RF output from 100 MHz to 860 MHz, covering VHF and UHF bands for broad compatibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Bandwidth:\u003c\/strong\u003e Supports 6 MHz, 7 MHz, and 8 MHz channel bandwidths to suit regional broadcast standards worldwide.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable RF Output Level:\u003c\/strong\u003e Continuously adjustable output level from 70 dBμV to 100 dBμV in 1 dBμV steps for precise signal management.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2K \u0026amp; 8K Carrier Modes:\u003c\/strong\u003e Supports both 2K and 8K OFDM carrier modes for maximum flexibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16×2 LCD Display:\u003c\/strong\u003e Clear lattice LCD screen makes setup and monitoring straightforward.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Wall-Mountable:\u003c\/strong\u003e Small form factor with wall-mount capability — ideal for rack rooms and AV closets.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets European CE safety and electromagnetic compatibility standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Integration:\u003c\/strong\u003e All-in-one design eliminates the need for separate encoding and modulation equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHDMI (720p \/ 1080p)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDVB-T RF (COFDM)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eEncoding Standard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eH.264\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eModulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCOFDM (DVB-T)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e100 – 860 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBandwidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e6 \/ 7 \/ 8 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eRF Output Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e70 – 100 dBμV (1 dBμV step)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCarrier Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2K \/ 8K\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e16×2 LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWall-mountable\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eThe ST-6503 is the ideal solution for hotels, resorts, hospitals, educational institutions, sports clubs, and CATV operators looking to broadcast self-produced HD content — such as informational channels, live event feeds, or promotional material — to standard DVB-T compatible TVs throughout their premises using existing coaxial infrastructure. No extra decoder box is required for end viewers with a built-in DVB-T tuner.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-8m-displayport-to-hdmi-cable-4k-dp-adapter-pc-hdtv-projector\"\u003e1.8M DisplayPort to HDMI Cable 4K – DP Adapter for PC \u0026amp; TV\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/usb-c-to-hdmi-cable-1-8m-4k-macbook-laptop-phone\"\u003e1.8M USB-C to HDMI Cable 4K – MacBook, Laptop \u0026amp; Phone\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-scr-solid-state-relay-switch-module-dc3-24v-40a-optocoupler\"\u003e1-Channel SCR Solid State Relay Module DC3-24V 40A Optocoupler\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on digital television broadcasting standards, visit the FCC or learn about signal transmission standards at \u003ca href=\"https:\/\/www.nist.gov\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNIST.gov\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What input sources does the SATLINK ST-6503 DVB-T encoder modulator support?\u003c\/h4\u003e\n\u003cp\u003eA: The ST-6503 accepts HDMI input signals at 720p and 1080p resolutions, making it compatible with cameras, media players, computers, set-top boxes, and other HD sources with HDMI output.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is DVB-T and which TVs can receive the ST-6503 output?\u003c\/h4\u003e\n\u003cp\u003eA: DVB-T (Digital Video Broadcasting – Terrestrial) is the widely adopted standard for over-the-air and cable digital television. Any TV or display with a built-in DVB-T tuner — which includes most modern televisions sold in Europe, Australia, Asia, and many other regions — can receive the modulated signal from the ST-6503 without any additional decoder hardware.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I adjust the output frequency to avoid interference with existing channels?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The ST-6503 features a continuously adjustable RF output frequency ranging from 100 MHz to 860 MHz, allowing you to select a clear, unused channel within your CATV system to avoid interference with existing broadcast channels.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the ST-6503 suitable for large-scale hotel or hospital CATV distribution?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The ST-6503 is specifically designed for professional CATV environments including hotels, hospitals, schools, and commercial venues. Its adjustable output level (70–100 dBμV) and wide frequency range make it well-suited for large coaxial distribution networks when combined with appropriate amplifiers and splitters.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What input sources does the SATLINK ST-6503 DVB-T encoder modulator support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The ST-6503 accepts HDMI input signals at 720p and 1080p resolutions, making it compatible with cameras, media players, computers, set-top boxes, and other HD sources with HDMI output.\"}}, {\"@type\": \"Question\", \"name\": \"What is DVB-T and which TVs can receive the ST-6503 output?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"DVB-T (Digital Video Broadcasting – Terrestrial) is the widely adopted standard for over-the-air and cable digital television. Any TV or display with a built-in DVB-T tuner — which includes most modern televisions sold in Europe, Australia, Asia, and many other regions — can receive the modulated signal from the ST-6503 without any additional decoder hardware.\"}}, {\"@type\": \"Question\", \"name\": \"Can I adjust the output frequency to avoid interference with existing channels?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The ST-6503 features a continuously adjustable RF output frequency ranging from 100 MHz to 860 MHz, allowing you to select a clear, unused channel within your CATV system to avoid interference with existing broadcast channels.\"}}, {\"@type\": \"Question\", \"name\": \"Is the ST-6503 suitable for large-scale hotel or hospital CATV distribution?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. The ST-6503 is specifically designed for professional CATV environments including hotels, hospitals, schools, and commercial venues. Its adjustable output level (70–100 dBμV) and wide frequency range make it well-suited for large coaxial distribution networks when combined with appropriate amplifiers and splitters.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/oasis-select.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/oasis-select.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"SATLINK ST-6503 HDMI to DVB-T RF Encoder Modulator CATV\", \"item\": \"https:\/\/oasis-select.com\/products\/satlink-st-6503-hdmi-dvb-t-rf-encoder-modulator-catv\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"black","offer_id":47727453601897,"sku":"14:193","price":365.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S431c7170ea4c452da840207a25834374j.webp?v=1782661598","url":"https:\/\/oasis-select.com\/products\/satlink-st-6503-hdmi-dvb-t-rf-encoder-modulator-catv","provider":"Oasis Select","version":"1.0","type":"link"}