[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-662019-105":59,"doc-detail-662019-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","radioshack-pro-2050-vhfuhfair800mhz-300-channel-trunktracker-home-scanner-owners-manual","RadioShack PRO-2050 VHF/UHF/Air/800MHz 300-Channel TrunkTracker Home Scanner - Owner’s Manual","","Owner’s manual for the RadioShack PRO-2050 VHF/UHF/Air/800MHz 300-channel TrunkTracker Home Scanner. Explains how trunking communications work and why monitoring trunked systems requires following the data channel to hear calls and responses. Describes core capabilities including conventional scanning, service-search banks, and direct access to stored channels. Lists advanced functions such as scan delay, lock-out, priority channels, HyperSearch/HyperScan high-speed searching, and signal skip, plus display and reception accessories.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/radioshack-pro-2050-vhfuhfair800mhz-300-channel-trunktracker-home-scanner-owners-manual/662019/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/radioshack-pro-2050-vhfuhfair800mhz-300-channel-trunktracker-home-scanner-owners-manual/662019.png","ImageObject",300,407,{"name":92,"@type":93},"OmBimo","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-10-28",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"How does the PRO-2050 follow trunked conversations?","Question",{"text":112,"@type":113},"It monitors the data channel frequency associated with a transmission, then instantly switches to an active frequency so the call and response can be heard.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What scanning options does the scanner support besides trunking?",{"text":117,"@type":113},"The scanner can scan conventional transmissions and is preprogrammed with service-search banks to quickly locate commonly used public service frequencies.",{"name":119,"@type":110,"acceptedAnswer":120},"What are scan delay and lock-out used for?",{"text":121,"@type":113},"Scan delay pauses about 2 seconds in conventional mode (and about 5 seconds in trunk tracking mode) before moving on. Lock-out skips specified channels/frequencies during scanning or searching and skips IDs when tracking trunked systems.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},662019,1793194490,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":129,"read_time":144},962090893581,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","20-4[30.fm](30.fm) Page 1 Wednesday, August 4, 1999 1:29 PM  \nOwner’s Manual Cat. No. 20-430  \nPRO-2050  \nVHF/UHF/Air/800MHz  \n300-Channel TrunkTracker Home Scanner  \nPlease read before using this equipment.  \n20-4[30.fm](30.fm) Page 2 Wednesday, August 4, 1999 1:29 PM  \nFEATURES  \nYour new RadioShack PRO-2050 VHF/UHF/Air/800MHz 300-Channel TrunkTracker Home Scanner is one of a new generation of scanners designed to track Motorola􀃤 Type I, Type II (such as Smartnet􀃤 and Privacy Plus􀃤 ), and hybrid analog trunking systems, which are extensively used in many 800 MHz communication systems.  \nTrunking communications systems let a large group of 2-way radio users (or even different groups of 2-way radio users) efficiently use a group of frequencies. Instead of selecting a specific frequency for a transmission, the 2-way radio user simply selects a talk group. The trunking system automatically transmits the call on the first available frequency, and also sends a code that uniquely identifies that 2-way radio user’s transmission on a different frequency called a data channel.  \nSince the trunking system might send individual 2-way radio user’s calls and response transmissions on different frequencies, it is difficult to listen to trunked communications using a regular scanner. The PRO-2050 monitors the data channel frequency sent with a 2-way radio user’s transmission and instantly switches to an active frequency, so you can hear the call and  \nresponse for that 2-way radio user and easily “follow” the conversation.  \nThe scanner also lets you scan conventional transmissions, and is preprogrammed with service-search banks for convenience. By pressing a single button, you can quickly search those frequencies most commonly used by public service and other agencies without tedious and complicated programming.  \nThis scanner gives you direct access to over 30,000 exciting frequencies, including those used by police and fire departments, ambulance services, and amateur radio services, and you can change your selection at any time.  \nYour scanner also has these special features:  \nTen Channel-Storage Banks — let you store 30 channels in each bank to group channels so you can more easily identify calls.  \nFive Scan Lists—let you store up to 50 IDs in each tracking bank (up to a total of 500) .  \nTriple-Conversion Circuitry—virtually eliminates any interference from IF (intermediate frequency) images, so you hear only the selected frequency.  \n© 1997 Tandy Corporation.  \nAll Rights Reserved.  \nRadioShack is a registered trademark used by Tandy Corporation. HyperSearch and HyperScan are trademarks used by Tandy Corporation. Motorola, Smartnet, and Privacy Plus are trademarks of Motorola, Inc.  \n2  \n20-4[30.fm](30.fm) Page 3 Wednesday, August 4, 1999 1:29 PM  \nScan Delay — delays scanning for about 2 seconds before moving to another channel in conventional mode, so you can hear more replies that are made on the same channel. In trunk tracking mode, it delays for about 5 seconds before moving to another ID.  \nLock-Out Function — lets you set your scanner to skip over specified channels or frequencies when scanning or searching, and skip over IDs when tracking trunked systems.  \nPriority Channels — lets you program one channel in each bank (10 in all) . As the scanner scans a bank, it checks the bank’s priority channel every 2 seconds so you don't miss transmissions on that channel.  \nFive Service-Search Banks — lets you search preset frequencies in separate public service, police, fire/emergency, aircraft, and weather banks, to make it easy to locate specific types of calls.  \nHyperSearch􀃤 and HyperScan􀃤 —let you set the scanner to search at up to 300 steps per second (in frequency bands with 5 kHz steps) and scan at up to 50 channels per second, to help you quickly find interesting broadcasts. (The normal search speed is 100 steps per second) .  \nData Signal Skip — lets you set the scanner to skip non-modulated or data signals during scanning ","cbCaiehtUH2lXisC","https://ap.wps.com/l/cbCaiehtUH2lXisC","pdf",999348,56,"English","# Features\n## Trunking communications overview\n## Channel storage, scan lists, and priority\n## Search banks and HyperSearch/HyperScan\n## Scan delay, lock-out, and alert functions\n## Frequency bands supported\n## FCC notice","[{\"question\":\"How does the PRO-2050 follow trunked conversations?\",\"answer\":\"It monitors the data channel frequency associated with a transmission, then instantly switches to an active frequency so the call and response can be heard.\"},{\"question\":\"What scanning options does the scanner support besides trunking?\",\"answer\":\"The scanner can scan conventional transmissions and is preprogrammed with service-search banks to quickly locate commonly used public service frequencies.\"},{\"question\":\"What are scan delay and lock-out used for?\",\"answer\":\"Scan delay pauses about 2 seconds in conventional mode (and about 5 seconds in trunk tracking mode) before moving on. Lock-out skips specified channels/frequencies during scanning or searching and skips IDs when tracking trunked systems.\"}]","RadioShack PRO-2050 VHF/UHF/Air/800MHz 300-Channel TrunkTracker Home Scanner - Owner’s Manual | PDF",141]