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GET /hyperkitty/api/list/[email protected]/email/KXIE5FG45ZQM7ST5RHDKIA6VZ77T6LGF/
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/KXIE5FG45ZQM7ST5RHDKIA6VZ77T6LGF/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "[email protected]", "message_id_hash": "KXIE5FG45ZQM7ST5RHDKIA6VZ77T6LGF", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/KXIE5FG45ZQM7ST5RHDKIA6VZ77T6LGF/", "sender": { "address": "k5oe (a) aol.com", "mailman_id": "aee3209b1433498d8db2ef6ec0d414c3", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/aee3209b1433498d8db2ef6ec0d414c3/emails/" }, "sender_name": "K5OE", "subject": "[amsat-bb] Battery-powered UHF Preamp suitable for Arrow or Elk\tandHT?", "date": "2011-03-04T14:31:27Z", "parent": null, "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/KTXR5XOMSGNR4G3LVTLZRIQZWDZVA4F3/" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "\nBryan,\nI built a cheap (about $17 as I recall) little Ramsey UHF preamp in a small enclosure with a 9 V battery rubber-banded to the Arrow boom, but found the Arrow had so much gain at 70 cm, even AO-27 was workable at the horizon. I used an external MFJ diplexer in lieu of the Arrow built-in-handle diplexer to protect the preamp from RF on transmit (worked fine, BTW). If you don't find you can hear that well, take a look at your coax and connectors between the antenna and the rig for unusual losses. \n\nI occasionally see the ARR non-relay preamps going on ebay for under $50 as well, and one of those with a double-ended BNC connector would bolt right onto the Arrow driven element connector. \n\n73,\nJerry, K5OE\n\n\n\n> Does anyone have a recommendation for a UHF preamp suitable for use with an\n> HT and an Arrow? I always wish I had one when I listen for SO-50... it seems\n> like it ought to be inline with BNC connectors and battery powered to\n> maintain portability...\n\n> Thanks in advance!\n\n> Bryan Green KL7CN\n> Usually /W6 in CM98fn\n 408-836-7279 \n\n\n\n", "attachments": [] }