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GET /hyperkitty/api/list/[email protected]/email/ODX4VHJ3ET6VHGXQZ5P3DW6JMDL27PKF/?format=api
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/ODX4VHJ3ET6VHGXQZ5P3DW6JMDL27PKF/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "000001c7af0c$fc254dc0$0301a8c0@Shop", "message_id_hash": "ODX4VHJ3ET6VHGXQZ5P3DW6JMDL27PKF", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/ODX4VHJ3ET6VHGXQZ5P3DW6JMDL27PKF/?format=api", "sender": { "address": "juan-rivera (a) sbcglobal.net", "mailman_id": null, "emails": null }, "sender_name": "Juan Rivera", "subject": "[eagle] Preliminary CAN-Do EMI Findings and Suggestions to Mitigate\tin the 70 cm Receiver", "date": "2007-06-15T05:21:09Z", "parent": null, "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/PDLLFJYPYSTGW6BNTGNNJVO7NUVSFKCU/?format=api", "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/B42J7V53UNKCX2CRM3JMDV7VT5S32HAN/?format=api" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "All,\n\n \n\nI've completed a preliminary evaluation of the CAN-Do RFI problem. Please\nsee my log for details by clicking here\n<http://www.juanr.com/pages/hobbies/ham_radio/Eagle/CAN-Do_Noise_Troubleshoo\nting.htm> .\n\n \n\n \n\nPreliminary Findings...\n\n1. The spurs seen in the receiver IF enter the receiver in two ways\n\no As radiation from the CAN-Do inductor\n\no Via CAN-Do module switched +14 VDC power on pins 39 and 40\n\n2. I/O line filtering appears to be unnecessary\n\n3. The switched power from the CAN-Do module pins 39 and 40 must be\nfiltered\n\n4. The CAN-Do module will either have to be kept physically separated\nfrom any sensitive components, redesigned, shielded or a combination of the\nthree.\n\n5. Moving the Can-Do module 2-1/4\" forward of its normal location on the\nreceiver PCB lowers the EMI level below the noise floor.\n\nSuggestions...\n\n* Create a full size PCB for the next generation receiver and shift\nthe RF components to the back of the board (away from the CAN-Do module.)\n\n* Add DC input filtering to the receiver\n\n73,\n\n \n\nJuan\n\nWA6HTP\n\n\n\n", "attachments": [ { "email": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/ODX4VHJ3ET6VHGXQZ5P3DW6JMDL27PKF/?format=api", "counter": 2, "name": "attachment.html", "content_type": "text/html", "encoding": "us-ascii", "size": 8196, "download": "https://mailman.amsat.org/hyperkitty/list/[email protected]/message/ODX4VHJ3ET6VHGXQZ5P3DW6JMDL27PKF/attachment/2/attachment.html" } ] }