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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/O5O7JAXDAL6RRK4HLK2B5JXFN5Z64XJF/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "DEF4A6D98D2442B5822F04604D0E4EF7@OsbornesPC",
    "message_id_hash": "O5O7JAXDAL6RRK4HLK2B5JXFN5Z64XJF",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/6FBGH7QLDIWM6KXLLT32ULDAGOQTQGLH/?format=api",
    "sender": {
        "address": "wandtosborne (a) gmail.com",
        "mailman_id": "e0efce0b56004e129f9360474b5a7a08",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/e0efce0b56004e129f9360474b5a7a08/emails/?format=api"
    },
    "sender_name": "Wendy and Terry Osborne",
    "subject": "Re: [amsat-bb] Shoppinglist",
    "date": "2019-03-15T03:50:10Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/6FBGH7QLDIWM6KXLLT32ULDAGOQTQGLH/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi Hans,\n\nIf you have a plenty of RG213 and suitable connectors, you could try making \na Coax stub filter.\nYou need a cable length that is an odd multiple of a quarter wave length \nlong at the FM Tx frequency\nand an even multiple of a quarter wave at the frequency that you want (2M \n/70CMs).\nA single RG213 stub would have about 25dB of rejection and would pass 100 \nWatts OK.\nYou just need a coax T connector and some matching connectors.\nTo trim the stub, use a set of garden secateurs.\nIf you have a Bao feng or similar radio you could use that on the FM band \nattached to your T and trim\nthe stub for minimum signal on the unwanted Tx frequency.\n\nI haven't run the calculations for how long the stub should be but if it's \nuseful I could do so.\n\n73,\nTerry Osborne ZL2BAC\n\n\n-----Original Message----- \nFrom: Hans BX2ABT\nSent: Thursday, March 14, 2019 12:33 AM\nTo: [email protected]\nSubject: [amsat-bb] Shoppinglist\n\nMy sis-in-law will be visiting from the States soon and I usually make\nher bring some stuff for me so I can save on freight costs. She will\ndefinitely bring an Arrow Antenna so I can start some portable\noperations. A Sony voice recorder is also on my list, as well as some\ncoax cable (RG-400 is what I'm thinking of. Really expensive here).\nDon't have a budget for much more, but since I have a clear\nline-of-sight to some 10 kW FM transmitters from my QTH I thought I\nshould at least get a good FM-band notch filter.\n\nAny recommendations on where to buy this in the US? I haven't found\nanything when I googled, not even a lot of 2/70 band pass filters, or\nlow pass filters to prevent desensing on 70 cm. My own creations have a\ntoo high insertion loss, so this time I really want something a bit more\nprofessional and something that can handle at least 100 Watts of power.\nAny recommendations are welcome. Cheers. --Hans BX2ABT\n\n\n_______________________________________________\nSent via [email protected]. AMSAT-NA makes this open forum available\nto all interested persons worldwide without requiring membership. Opinions \nexpressed\nare solely those of the author, and do not reflect the official views of \nAMSAT-NA.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb \n\n",
    "attachments": []
}