# Hytera US Inc > Hytera US Inc provides professional two-way radio, DMR, push-to-talk over cellular, and critical communications products for organizations in the United States. ## Pillar and Cluster Guides Each heading below is a pillar article. Its indented links are cluster articles in the same topic group. ### [Complete Guide to Using Two-Way Radios](https://www.hytera.us/resources/complete-guide-to-using-two-way-radios/) Learn how to use two-way radios, including push-to-talk, channels, zones, radio etiquette, lingo, 10-codes, cleaning, maintenance, charging, and battery care. - [How to Clean and Disinfect Two-Way Radios](https://www.hytera.us/resources/how-to-clean-and-disinfect-two-way-radios/): Learn how to clean and disinfect shared two-way radios safely, including preparation, cleaning steps, disinfecting guidance, CDC recommendations,... - [How to Maintain and Take Care of Two-Way Radios](https://www.hytera.us/resources/how-to-take-care-of-two-way-radios/): Learn how to properly maintain, store, handle, and protect two-way radios so they stay organized, ready for use,... - [How to Use Two-Way Radio Channels and Zones](https://www.hytera.us/resources/how-to-use-two-way-radio-channels-and-zones/): Learn how channels and zones organize two-way radio communication for schools, facilities, hospitality, manufacturing, and business teams. - [How Do You Charge Two-Way Radios and Maintain Batteries?](https://www.hytera.us/resources/how-to-charge-two-way-radios-and-extend-battery-life/): Learn how to charge two-way radios, maintain lithium-ion and lithium-polymer batteries, use multi-unit chargers, extend battery life, and... - [What Are the Best Practices for Two-Way Radio Communication?](https://www.hytera.us/resources/how-to-talk-and-best-practices-for-two-way-radios/): Learn best practices for clear two-way radio communication, including call structure, PTT etiquette, radio checks, call signs, confirmation... - [What is the Phonetic Alphabet?](https://www.hytera.us/resources/phonetic-alphabet/): Learn what the phonetic alphabet is, how it improves two-way radio communication, and how to use Alpha, Bravo,... - [What Is Two-Way Radio Lingo and Terminology?](https://www.hytera.us/resources/radio-lingo-and-terminology/): Learn common two-way radio lingo and terminology, including Roger, Copy, Wilco, Say Again, Over, Out, Stand By, Break... - [What Are the Two-Way Radio 10-Codes](https://www.hytera.us/resources/what-are-radio-10-codes/): Learn what two-way radio 10-codes are, where they came from, common examples such as 10-4 and 10-9, and... ### [What are IP Ratings and MIL-STD for Radios?](https://www.hytera.us/resources/what-are-two-way-radios-ip-rating-mil-std/) How to Determine the IP Rating and MIL-SDT Compliance You Need for Your Two-Way Radios - [The Importance of Waterproof Two-Way Radios](https://www.hytera.us/resources/the-importance-of-waterproof-two-way-radios/): How IP68 Waterproof Radios Enable Reliable Communications in a Variety of Work Environments - [What is Digital Noise Suppression?](https://www.hytera.us/resources/digital-noise-suppression/): How DMR Technology and AI-Based Noise Cancellation Improve Audio Quality - [How Two-Way Radios Use GPS](https://www.hytera.us/resources/two-way-radios-with-gps/): How GPS Location Tracking and Geofencing Works, and the Benefits to Your Organization - [What is Two-Way Radio Encryption?](https://www.hytera.us/resources/what-is-two-way-radio-encryption/): How Digital Encryption Ensures Private and Secure Radio Communications ### [DMR Two-Way Radio Explained](https://www.hytera.us/resources/dmr-radio-systems-explained/) Learn how DMR radio systems work, including radio-to-radio communication, DMR Tier II repeaters, IP Connect, Hytera XPT, DMR Tier III trunking, and analog-to-digital migration. - [What are the Benefits of DMR Two-Way Radios?](https://www.hytera.us/resources/benefits-of-dmr-digital-mobile-radio/): Learn how DMR radio technology improves business communications with two-slot TDMA capacity, clearer digital audio, data services, scalability,... - [The Three Tiers of the DMR Radio Standard](https://www.hytera.us/resources/what-is-dmr-standard-tiers/): Understand the DMR standard and the differences between DMR Tier I, Tier II, and Tier III, including licensing,... - [What Are DMR Tier II Repeater Systems?](https://www.hytera.us/resources/dmr-tier-ii-repeater-systems/): Learn what DMR Tier II repeater systems are, how they work, what components they require, and how they... - [What Is Extended Pseudo Trunk (XPT)?](https://www.hytera.us/resources/what-is-extended-pseudo-trunk-xpt/): Learn what Hytera Extended Pseudo Trunking XPT is, how it works, how it expands DMR Tier II capacity,... - [What Is IP Site Connect?](https://www.hytera.us/resources/what-is-dmr-ip-site-connect/): Learn how DMR IP Site Connect links Tier II repeater sites over IP networks for wide-area communication across... - [What Is a DMR Tier III Trunking System?](https://www.hytera.us/resources/dmr-tier-iii-trunking-systems/): Learn what a DMR Tier III trunking system is, how control channels and traffic channels work, and when... - [Comparing DMR Radio Systems: Which System Is Right for You?](https://www.hytera.us/resources/what-are-the-different-dmr-radio-systems/): Learn how to choose between radio-to-radio DMR, Tier II repeaters, IP Site Connect, XPT, and DMR Tier III... - [Do You Need an FCC Frequency License for a Two-Way Radio?](https://www.hytera.us/resources/do-you-need-fcc-frequency-license-two-way-radio/): Learn when businesses need an FCC frequency license for two-way radios, what license-free options exist, and how to... - [What Is the Range of a DMR Two-Way Radio?](https://www.hytera.us/resources/what-is-the-range-of-two-way-radios/): Learn about the range of DMR two-way radios, factors that impact range, including radio-to-radio range, and how to... ### [Push-to-Talk Over Cellular: The Complete Guide to PoC Radios and Nationwide Systems](https://www.hytera.us/resources/push-to-talk-over-cellular-poc-guide/) Learn how Push-to-Talk over Cellular works, how PoC radios use LTE, 5G, Wi-Fi, cloud servers, dispatching, multi-carrier SIMs, subscriptions, and gateways to connect teams... - [Push to Talk over Cellular for Large Companies](https://www.hytera.us/resources/push-to-talk-over-cellular-for-large-companies/): Learn how large companies and organizations use Push-to-Talk over Cellular to manage users, talk groups, locations, dispatch access,... - [How Does Push-to-Talk over Cellular Work](https://www.hytera.us/resources/what-is-push-to-talk-over-cellular-how-does-it-work/): Learn how Push-to-Talk over Cellular works, including how PoC radios use LTE, Wi-Fi, SIM cards, cloud servers, apps,... - [What is Push-to-Talk over Wi-Fi?](https://www.hytera.us/resources/what-is-push-to-talk-over-wi-fi-how-does-it-work/): Learn how Push-to-Talk over Wi-Fi works as part of a PoC system, how PoC radios use facility Wi-Fi,... - [What are the Benefits of PoC?](https://www.hytera.us/resources/what-are-the-benefits-of-push-to-talk-over-cellular-poc/): Learn the top benefits of Push-to-Talk over Cellular, including nationwide coverage, LTE and Wi-Fi access, fast deployment, lower... - [How to Choose the Best PoC Radios](https://www.hytera.us/resources/how-to-chose-best-poc-radios/): Learn how to choose the best PoC radio by comparing durability, audio quality, battery life, warranty, device options,... - [How to Choose the Best PoC Service](https://www.hytera.us/resources/how-to-chose-best-poc-service/): Learn how to choose the best Push-to-Talk over Cellular system by evaluating the PoC platform, cloud servers, subscription... - [Connecting PoC to Existing Radio Systems](https://www.hytera.us/resources/how-to-connect-poc-to-existing-radio-system/): Learn how PoC radios can connect to existing DMR and analog radio systems with Hytera BRIDGE, including single-site,... - [PoC Dispatch and Fleet Management](https://www.hytera.us/resources/poc-dispatching-and-fleet-management/): Learn how PoC dispatch works, how GPS-enabled PoC radios support fleet tracking, and how web-browser based dispatch helps... - [Why Use a Two-Way Radio Instead of a Cell Phone?](https://www.hytera.us/resources/two-way-radios-vs-cell-phones/): The Benefits of Two-Way Radios vs Cell Phones ### [What is the Difference Between Analog and Digital Two-Way Radio?](https://www.hytera.us/resources/analog-vs-digital-two-way-radios/) Analog vs Digital Two-Way Radios - [The History of the Walkie-Talkie](https://www.hytera.us/resources/the-history-of-the-walkie-talkie/): Origin and Evolution of the Walkie-Talkie - [Why Use a Two-Way Radio Instead of a Cell Phone?](https://www.hytera.us/resources/two-way-radios-vs-cell-phones/): The Benefits of Two-Way Radios vs Cell Phones - [Choosing a UHF or VHF Radio](https://www.hytera.us/resources/uhf-or-vhf-radio/): Understanding the Differences Between UHF and VHF Radios - [Walkie Talkies VS Two-Way Radios](https://www.hytera.us/resources/walkie-talkies-vs-two-way-radios/): The Differences Between Consumer Walkie Talkies and Professional Two-Way Radios ### [How Two-Way Radios Can Improve Your Business](https://www.hytera.us/resources/how-two-way-radios-improve-business/) How Two-Way Radios Improve the Efficiency, Safety, and Morale of Your Organization - [How Two-Way Radios Improve Worker Safety](https://www.hytera.us/resources/how-two-way-radios-improve-worker-safety/): How Two-Way Radio Safety Features Prevent Injuries and Reduce Emergency Response Time ## Authors and Reviewers - [Morne Stramrood](https://www.hytera.us/authors/morne-stramrood/): Sales Engineering Director - [Julie Ann Baker](https://www.hytera.us/authors/julie-ann-baker/): PoC Product Manager - [Ryan Ousley](https://www.hytera.us/authors/ryan-ousley/): Pre-Sales Engineer - [Ty Estes](https://www.hytera.us/authors/ty-estes/): Marketing Director - [Richard Galvan](https://www.hytera.us/authors/richard-galvan/): Sales Engineer ## Products ### Push-to-Talk over Cellular Products - [MNC360 PoC Mobile Radio](https://www.hytera.us/products/mnc360-push-to-talk-poc-mobile-radio/): Push-to-Talk over Cellular Mobile Radio - [PNC360S PoC Radio](https://www.hytera.us/products/pnc360s-ptt-lte-iot-radio/): Compact Push-to-Talk Over Cellular Radio - [PNC380S PoC Radio](https://www.hytera.us/products/pnc380s-poc-ptt-over-cellular-radio/): Nationwide Push-to-Talk over Cellular Radio - [PNC560 Push-to-Talk over Cellular Android Smart Device with Scanner](https://www.hytera.us/products/pnc560-poc-push-to-talk-smart-device-scanner/): Push-to-Talk over Cellular Android Handheld Smart Device - [PNC560S Push-to-Talk over Cellular Android Smart Device](https://www.hytera.us/products/pnc560s-poc-push-to-talk-mobile-computer/): Push-to-Talk over Cellular Android Handheld Smart Device ### Other Key Products - [BD302i DMR Two-Way Radio](https://www.hytera.us/products/bd302i-dmr-two-way-radio/): Compact Entry-Level DMR Two-Way Radio - [BD502i DMR Two-Way Radios](https://www.hytera.us/products/bd502i-dmr-two-way-radios/): BD502i Commercial UHF and VHF DMR Two-Way Digital Radios - [BD552i DMR Two-Way Radios](https://www.hytera.us/products/bd552i-dmr-two-way-radios/): BD552i Commercial UHF and VHF DMR Two-Way Digital Radios - [BD612i DMR Two-Way Radio](https://www.hytera.us/products/bd612i-digital-two-way-radio/): Rugged and Cost-Effective UHF and VHF DMR Two-Way Radios - [HM652 DMR Mobile Radios](https://www.hytera.us/products/hm652-h-series-dmr-mobile-radio/): H-Series entry-level DMR mobile radio with optional GPS and Bluetooth - [HM682 DMR Mobile Radios](https://www.hytera.us/products/hm682-h-series-dmr-mobile-radio/): H-Series mid-tier Professional DMR Mobile Radios with LCD Display, and Optional GPS and Bluetooth - [HM782 Mobile Radio](https://www.hytera.us/products/hm782-h-series-dmr-mobile-radio/): H-Series Professional DMR Mobile Radio and Gateway with LCD Display, and Optional GPS and Bluetooth - [HP602 DMR Two-Way Radio](https://www.hytera.us/products/hp602-h-series-dmr-two-way-radio/): H-Series Compact Professional DMR Two-Way Radio with OLED Display and Optional GPS and Bluetooth - [HP682 DMR Two-Way Radio](https://www.hytera.us/products/hp682-h-series-dmr-two-way-radio/): H-Series Compact Professional DMR Two-Way Radio with LCD Display, Full Keypad, and Optional GPS and Bluetooth - [HP702 DMR Two-Way Radio](https://www.hytera.us/products/hp702-h-series-dmr-two-way-radio/): H-Series Professional DMR Two-Way Radio with OLED Display and Optional GPS and Bluetooth - [HP702-IS Intrinsically Safe Radio](https://www.hytera.us/products/hp702-is-intrinsically-safe-two-way-radio/): H-Series Intrinsically Safe DMR Two-Way Radio with OLED Display and Optional GPS and Bluetooth - [HP782 DMR Two-Way Radio](https://www.hytera.us/products/hp782-h-series-dmr-two-way-radio/): H-Series Professional DMR Two-Way Radio with LCD Display, Full Keypad, and Optional GPS and Bluetooth - [HP782-IS Intrinsically Safe Radio](https://www.hytera.us/products/hp782-is-intrinsically-safe-two-way-radio/): H-Series Intrinsically Safe DMR Two-Way Radio with LCD Display, Full Keypad, and Optional GPS and Bluetooth - [HR1062 DMR Repeater](https://www.hytera.us/products/hr1062-h-series-dmr-repeater/): H-Series Professional DMR Digital 1U Repeater with Advanced Networking - [HR652 Compact DMR Repeater](https://www.hytera.us/products/hr652-h-series-compact-dmr-repeater/): H-Series Professional DMR Compact Repeater - [MD612i DMR Mobile Radio](https://www.hytera.us/products/md612i-dmr-mobile-radio/): Commercial VHF DMR Mobile Radios with LED Display, GPS, and Optional Bluetooth - [MD622i DMR Mobile Radio](https://www.hytera.us/products/md622i-dmr-mobile-radio/): Commercial VHF DMR Mobile Radios with LCD Display, GPS, and Optional Bluetooth - [PD362i Compact DMR Radio](https://www.hytera.us/products/pd362i-compact-dmr-two-way-radio/): Compact Commercial DMR Two-Way Digital Radio with LCD Display - [PD402i DMR Two-Way Radio](https://www.hytera.us/products/pd402i-dmr-two-way-radio/): Commercial UHF and VHF Two-Way DMR Radios ## Categories ### Resource Categories - [All Articles](https://www.hytera.us/articles/) - [How to Use Two-Way Radios](https://www.hytera.us/articles/?pillar=how-to-use-two-way-radios) - [Radio Features Guides](https://www.hytera.us/articles/?pillar=radio-features-guides) - [DMR Radios and Systems](https://www.hytera.us/articles/?pillar=dmr-radios-and-systems) - [Push-to-Talk over Cellular](https://www.hytera.us/articles/?pillar=push-to-talk-over-cellular) - [Radio Comparison Guides](https://www.hytera.us/articles/?pillar=radio-comparison-guides) - [Business Cases](https://www.hytera.us/articles/?pillar=business-cases) ### Product Categories - [Analog](https://www.hytera.us/product-category/analog/) - [DMR](https://www.hytera.us/product-category/dmr/) - [PoC](https://www.hytera.us/product-category/poc/) ## Support - [FAQ](https://www.hytera.us/faqs/) - [Glossary](https://www.hytera.us/glossary/) ## Contact - [Contact Hytera US](https://www.hytera.us/contact-us/) ## Exclusions - Checkout, account, search, filter, noncanonical, noindex, redirect, and backend utility URLs are intentionally omitted.