{"id":21590957,"url":"https://github.com/spaceteam/sts1_rf_module","last_synced_at":"2026-03-19T20:57:29.983Z","repository":{"id":122271702,"uuid":"608831136","full_name":"SpaceTeam/STS1_RF_Module","owner":"SpaceTeam","description":"The full RF path of the STS1 COBC broken out as a separate module for testing and fun.","archived":false,"fork":false,"pushed_at":"2023-07-08T12:17:36.000Z","size":899,"stargazers_count":1,"open_issues_count":2,"forks_count":0,"subscribers_count":4,"default_branch":"master","last_synced_at":"2025-01-24T16:28:17.902Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":null,"has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/SpaceTeam.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2023-03-02T20:34:48.000Z","updated_at":"2024-07-17T08:21:48.000Z","dependencies_parsed_at":null,"dependency_job_id":"e13edbca-6bf7-4efb-999e-3251fd20cef7","html_url":"https://github.com/SpaceTeam/STS1_RF_Module","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/SpaceTeam%2FSTS1_RF_Module","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/SpaceTeam%2FSTS1_RF_Module/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/SpaceTeam%2FSTS1_RF_Module/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/SpaceTeam%2FSTS1_RF_Module/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/SpaceTeam","download_url":"https://codeload.github.com/SpaceTeam/STS1_RF_Module/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":244198406,"owners_count":20414443,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-11-24T16:21:18.792Z","updated_at":"2026-01-03T17:39:01.348Z","avatar_url":"https://github.com/SpaceTeam.png","language":null,"funding_links":[],"categories":[],"sub_categories":[],"readme":"# STS1 RF Module\n\nThis PCB is the RF subsystem of the STS1 COBC (\"Communication and On Board Computer\") isolated on a separate PCB to test the RF subsystem.  \nThe complete RF path was simulated using QUCS (see [the STS1_RF_Simulations repo](https://github.com/SpaceTeam/STS1_RF_Simulations) for the files).\n\nIt is based around the Si4463 RF IC and features an LNA, 2W power amplifier and filtering built for our CubeSat and is designed for a frequency around 435MHz.\n\nFeel free to use this for whatever you want but there are two important things to consider:\n- 2W is way more than legal without some form of license in most countries so make sure that whatever you are planning to do is legal in your country.\n- The filtering and matching is designed for 435MHz. For any other frequency you'll probably go into the QUCS project and find suitable values for your frequency.\n  - The matching of the Si4463 is described in [AN643](https://www.silabs.com/documents/public/application-notes/AN643.pdf) and [AN648](https://www.silabs.com/documents/public/application-notes/AN648.pdf)\n  - The matching of the PA and LNA is done using the [QUCS matching network calculation tool](https://qucs-help.readthedocs.io/en/0.0.19/matching.html)\n  - The low pass filters most likely can stay the same if you don't drastically change the frequency\n  - The band pass filters are stolen from [ORESAT0 C3](https://github.com/oresat/oresat-c3/) so you'll have to figure this out on your own :P\n- When using this in space, you'll want to add some form of watchdog to the `TX_Block` input and latch-up protection for at least the 3.3V rail (the power amplifier has it's own e-fuse on the 5V rail)\n\n## Current state\n\n### v1.0\n\nCurrently untested!  \nThe TX path excluding the RF switch were mostly tested before but the rest is untested.  \n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fspaceteam%2Fsts1_rf_module","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fspaceteam%2Fsts1_rf_module","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fspaceteam%2Fsts1_rf_module/lists"}