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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/Q55UHOQ2J23XOR6GPKX2Q34FQWVDEMVF/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "CANsNearkepGGFB0Zy-fQfFwjQA1z4nJYFrm7mxXXKq9_UFaD8g@mail.gmail.com", "message_id_hash": "Q55UHOQ2J23XOR6GPKX2Q34FQWVDEMVF", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/Q55UHOQ2J23XOR6GPKX2Q34FQWVDEMVF/", "sender": { "address": "rich (a) ourowndomain.com", "mailman_id": "de4e965f89da4d4790638af3cb47f33c", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/de4e965f89da4d4790638af3cb47f33c/emails/" }, "sender_name": "Rich Gopstein", "subject": "[pacsat-dev] Re: AX5043 Booster Board", "date": "2023-01-19T02:32:29Z", "parent": null, "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "I suspect the matching network is tuned for UHF...\n\nOn Wed, Jan 18, 2023 at 9:30 PM Burns Fisher (AMSAT) via pacsat-dev <\[email protected]> wrote:\n\n> Leaving it will allow a fallback half duplex configuration\n>\n> On Thu, Jan 19, 2023 at 3:29 PM Rich Gopstein via pacsat-dev <\n> [email protected]> wrote:\n>\n>> BTW - the external 90nH inductor isn't needed for the UHF chip. No harm\n>> in leaving it in, though.\n>>\n>> On Wed, Jan 18, 2023 at 4:07 PM Jim McCullers via pacsat-dev <\n>> [email protected]> wrote:\n>>\n>>> Attached are the schematic and layout for the TMS-570 LaunchPad booster\n>>> board.\n>>>\n>>>\n>>>\n>>> It contains two AX5043 circuits configurable for VHF or UHF and places\n>>> for four MRAMs.\n>>>\n>>> Not all positions are required to be present so the build can be by need.\n>>>\n>>> It does contain the resistors I discussed that may not be required in\n>>> future versions.\n>>>\n>>>\n>>>\n>>> Please give it a review as I’m preparing to send the design to the PCB\n>>> board maker for a first trial run.\n>>>\n>>>\n>>>\n>>> 73\n>>>\n>>>\n>>>\n>>> Jim McCullers\n>>>\n>>> WA4CWI\n>>>\n>>> -----------------------------------------------------------\n>>>\n>>> pacsat-dev mailing list -- [email protected]\n>>> View archives of this mailing list at\n>>> https://mailman.amsat.org/hyperkitty/list/[email protected]\n>>> To unsubscribe send an email to [email protected]\n>>> Manage all of your AMSAT-NA mailing list preferences at\n>>> https://mailman.amsat.org\n>>>\n>>\n>> -----------------------------------------------------------\n>>\n>> pacsat-dev mailing list -- [email protected]\n>> View archives of this mailing list at\n>> https://mailman.amsat.org/hyperkitty/list/[email protected]\n>> To unsubscribe send an email to [email protected]\n>> Manage all of your AMSAT-NA mailing list preferences at\n>> https://mailman.amsat.org\n>>\n> --\n> 73,\n>\n> Burns Fisher, WB1FJ\n> *AMSAT(R) Engineering -- Flight Software*\n>\n> -----------------------------------------------------------\n>\n> pacsat-dev mailing list -- [email protected]\n> View archives of this mailing list at\n> https://mailman.amsat.org/hyperkitty/list/[email protected]\n> To unsubscribe send an email to [email protected]\n> Manage all of your AMSAT-NA mailing list preferences at\n> https://mailman.amsat.org\n>\n\n\n", "attachments": [ { "email": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/Q55UHOQ2J23XOR6GPKX2Q34FQWVDEMVF/", "counter": 2, "name": "attachment.html", "content_type": "text/html", "encoding": "utf-8", "size": 5573, "download": "https://mailman.amsat.org/hyperkitty/list/[email protected]/message/Q55UHOQ2J23XOR6GPKX2Q34FQWVDEMVF/attachment/2/attachment.html" } ] }