{"id":61,"date":"2026-09-20T19:12:04","date_gmt":"2026-09-20T19:12:04","guid":{"rendered":"https:\/\/digitalhamstore.com\/?page_id=61"},"modified":"2026-10-08T22:29:25","modified_gmt":"2026-10-08T22:29:25","slug":"projects","status":"publish","type":"page","link":"https:\/\/digitalhamstore.com\/?page_id=61","title":{"rendered":"Projects"},"content":{"rendered":"\n

IP400 Advanced Mesh Network Controller<\/h3>\n\n\n\n
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\"\"<\/figure>\n<\/div>\n\n\n\n
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The IP400 AMNC module implements the IP400 protocol using OFDM-AB modulation, and can connect to any FM radio from 10M to 1296MHz. It can be used as in a standalone mode or as a Pi HAT, where it can provide an data overlay to an existing AllStarLink repeater system.<\/p>\n\n\n\n

It is software driven and expandable to add more modes in the future, and the firmware can be upgraded in the field.<\/p>\n<\/div>\n<\/div>\n\n\n\n

IP400 Mini Node II<\/h3>\n\n\n\n
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The IP400 Mini node II runs natively as a 100mW low power node that implements the IP400 protocol on the 400 MHz band only at speeds up to 100 Kilobits\/s using 4FSK modulation. It runs the same mesh firmware as the AMNC module, but is limited only to its native mode.<\/p>\n\n\n\n

The node mounts on a Pi Zero module, and is powered by the POE ethernet adapter, and supports the 5W power amplifier.<\/p>\n<\/div>\n<\/div>\n\n\n\n

IP400 MHz 5 Watt Power Amplifier<\/h3>\n\n\n\n
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The IP400 power amplifier is based on a single chip device to provide up to 5W from as little as 100mW, and is the ideal companion to the mini-node, or any hot spot. It has a single coaxial connection for RF and power, and auto sensing for transmit to receive switching.<\/p>\n\n\n\n

The amplifier requires up to 2A for full power output, which can be supplied by the POE ethernet adapter.<\/p>\n<\/div>\n<\/div>\n\n\n\n

POE Ethernet Adapter<\/h3>\n\n\n\n
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\"\"<\/figure>\n<\/div>\n\n\n\n
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The POE ethernet adapter uses the 802.11af standard to add an ethernet connection and power to Pi Zero module. Drivers for the ethernet adapter are built into the Raspbian operating system, requiring no external software. <\/p>\n\n\n\n

The POE supply takes 24V from the ethernet cable to supply up to 4A at 5V, which can run the pi, a mini node and the power amplifier.<\/p>\n<\/div>\n<\/div>\n\n\n\n

TKR901 Repeater Programmer<\/h3>\n\n\n\n
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Conversion of a TKR901 repeater to the amateur bands proved to be difficult because the microcontroller designed in by the manufacturer was not reprogrammable. The solution is to supply a separate programming module that can take control of the synthesizers. <\/p>\n\n\n\n

This module can be retrofitted to program all the amateur and commercial frequencies, and can easily be mounted inside the radio.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

IP400 Advanced Mesh Network Controller The IP400 AMNC module implements the IP400 protocol using OFDM-AB modulation, and can connect to any FM radio from 10M to 1296MHz. It can be used as in a standalone mode or as a Pi HAT, where it can provide an data overlay to an existing AllStarLink repeater system. It […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-61","page","type-page","status-publish","hentry"],"yoast_head":"\nProjects - Digital Hamstore Inc<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/digitalhamstore.com\/?page_id=61\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Projects - Digital Hamstore Inc\" \/>\n<meta property=\"og:description\" content=\"IP400 Advanced Mesh Network Controller The IP400 AMNC module implements the IP400 protocol using OFDM-AB modulation, and can connect to any FM radio from 10M to 1296MHz. 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