Email Detail

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/IFSAT4ETJ67MEJJHKKVYVJI4FJE7GPRI/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CO2PR01MB2071F61C4039E82D7F522AB398900@CO2PR01MB2071.prod.exchangelabs.com",
    "message_id_hash": "IFSAT4ETJ67MEJJHKKVYVJI4FJE7GPRI",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/2ETFYEDD2OUFXABCROPA5MVTHVFWF3SR/?format=api",
    "sender": {
        "address": "va7kbm (a) outlook.com",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Ken M",
    "subject": "Re: [amsat-bb] Recording TX & RX from one or two radios?",
    "date": "2018-05-18T16:45:51Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/HWRKZP7P4NCMQEPTXBGFK7ZOPFOB7MI5/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "John, I think your solution might work and would be simple - a noise-cancelling lapel microphone would be ideal - unless the radio audio out and the microphone sharing a common ground leads to RFI issues. A lot easier than bringing a portable mixer into the field! Audacity is a fabulous program which I use to pre-process SSTV audio data among other things.\r\n\r\nThanks to all for the suggestions!\r\n\r\n73 Ken VA7KBM\r\n\r\nOn 2018-05-18 07:39, Don KB2YSI wrote:\r\nThat would make logging much easier!\r\n\r\n73, Don KB2YSI\r\n\r\nOn Fri, May 18, 2018, 08:48 John Brier <[email protected]<mailto:[email protected]>> wrote:\r\nI haven't done this yet but I think others have and I plan to do it one day: most recorders are stereo. Get a *channel* splitter (I bought one on Amazon) and send radio audio to left channel, say, and an external mic to right.\r\n\r\nFor me I plug my headphones into the recorder to monitor the radio so I would have to splice the left channel to both right and left so I didn't have my external mic audio in one ear and the radio in the other.\r\n\r\nOne reason I want to do this is because it will make transcribing QSOs from the recording easier. Just open the waveform in Audacity or another similar app and you can see anytime you talk on the local mic. Skip there and transcribe the contact. Otherwise for me at least I end up having to listen through a lot/most of the recording trying to find myself.\r\n\r\n73, John Brier KG4AKV\r\n\r\nOn Fri, May 18, 2018, 08:13 Don KB2YSI <[email protected]<mailto:[email protected]>> wrote:\r\nI would think there is a dual input recorder available, one for the RX one\r\nfor the mic, or use 2 recorders and splice the audio later.\r\n\r\n73, Don KB2YSI\r\n\r\nOn Fri, May 18, 2018, 04:25 Ken M <[email protected]<mailto:[email protected]>> wrote:\r\n\r\n> Hi Patrick,\r\n>\r\n> Of course you are right about full duplex recording (kicking myself for\r\n> not thinking of that!).\r\n>\r\n> For HF and all other half-duplex work, especially QRP from the field I’m\r\n> looking for a wired solution so I don’t record background noise (and I use\r\n> a headset). Anyway, that’s not a satellite application so I’ll take the\r\n> question elsewhere.\r\n>\r\n> Thanks!\r\n> 73 Ken VA7KBM\r\n>\r\n> On May 17, 2018, at 5:21 PM, Patrick STODDARD (WD9EWK/VA7EWK) <\r\n> [email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>> wrote:\r\n>\r\n> Ken,\r\n>\r\n> It really is simple, if you are working full-duplex. Just\r\n> record the RX audio. You get the full exchanges, since\r\n> you will hear yourself and the other stations. A splitter\r\n> on the speaker of the radio receiving the downlink can feed\r\n> audio to a recorder and headphones/earphone/earbuds you are\r\n> using to hear the downlink.\r\n>\r\n> For working HF or working satellites half-duplex, I just use\r\n> a recorder that picks up the radio's speaker audio and my\r\n> voice with its microphone. Then I get both sides of those\r\n> QSOs.\r\n>\r\n> 73!\r\n>\r\n>\r\n>\r\n>\r\n>\r\n>\r\n> Patrick WD9EWK/VA7EWK\r\n> http://www.wd9ewk.net/\r\n> Twitter: @WD9EWK or http://twitter.com/WD9EWK\r\n>\r\n>\r\n> On Thursday, May 17, 2018, Ken M <[email protected]<mailto:[email protected]><mailto:\r\n> [email protected]<mailto:[email protected]>>> wrote:\r\n> Hello AMSATers,\r\n>\r\n> I'm looking to record both TX and RX audio to a digital recorder, either\r\n> at the QTH or in the field (but mainly in the field), in either of two\r\n> common scenarios:\r\n>\r\n> 1. TX from one radio, and RX from a different radio (as in satellite use\r\n> with one radio for uplink and one for downlink).\r\n>\r\n> 2. TX/RX from the same radio (as in a full-duplex radio for FM\r\n> satellites, or for non-satellite use).\r\n>\r\n> I'm wondering if you know of a device (or a published circuit design)\r\n> that will allow TX/RX recording while isolating the radios from each\r\n> other and/or a radio's TX from it's RX, while linked to the same\r\n> recorder? I have to believe this is a well-solved problem within the\r\n> satellite radio community but I haven't found too many ideas for field\r\n> use. This is seems to be an easier problem to solve at the QTH if\r\n> recording to computer, with various sound interfaces (Signalink, etc.)\r\n> so my main interest is in field use with a digital recorder so I can\r\n> record my QSO's while juggling two radios plus antenna, etc. The easy\r\n> alternative is just to record the RX side, which is easy, and works for\r\n> logging but doesn't give you the full exchange.\r\n>\r\n> Thanks & 73!\r\n> Ken VA7KBM\r\n>\r\n>\r\n> _______________________________________________\r\n> Sent via [email protected]<mailto:[email protected]>. AMSAT-NA makes this open forum available\r\n> to all interested persons worldwide without requiring membership. Opinions\r\n> expressed\r\n> are solely those of the author, and do not reflect the official views of\r\n> AMSAT-NA.\r\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\r\n> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\r\n>\r\n_______________________________________________\r\nSent via [email protected]<mailto:[email protected]>. AMSAT-NA makes this open forum available\r\nto all interested persons worldwide without requiring membership. Opinions expressed\r\nare solely those of the author, and do not reflect the official views of AMSAT-NA.\r\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\r\nSubscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\r\n\r\n",
    "attachments": []
}