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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/AG5UMFBFLKFXZTB4FE6TAD65NEJV6DNQ/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "AG5UMFBFLKFXZTB4FE6TAD65NEJV6DNQ",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/4WZFIC7BGWPFUQYL4AOXI43NMAK37MUH/?format=api",
    "sender": {
        "address": "ko6th_greg (a) hotmail.com",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Greg D.",
    "subject": "[amsat-bb] Re: Need Advice for SDR choice",
    "date": "2011-01-05T05:32:04Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/GVNSWNESHRTQ2IAUPKM566XRJ2GZ75QP/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "\nAs someone else who owns an ICOM R-7000 receiver, I've never been impressed by its receive specs.  I used mine in the receive chain for AO-40, with a 30\" BBQ Grill, Drake 2880 downconverter, and Khune preamp on the roof, and seldom ever got the S-meter to move off the left-hand peg.  Still made plenty of contacts, but it was never arm-chair copy.\n\nI haven't seen the specs on the FCD, but I bet it's the better receiver.  Couldn't possibly be worse...\n\nGreg  KO6TH\n\n\n> From: [email protected]\n> Date: Tue, 4 Jan 2011 10:07:06 -0500\n> To: [email protected]; [email protected]\n> Subject: [amsat-bb] Re: Need Advice for SDR choice\n> \n> For someone who already owns an Icom R-7000, a $20 Softrock kit with the appropriate crystal for 10.7 MHz, connected to the IF output and a good sound card, will be able to display a 96 kHz bandwidth.  The Softrock in this case would basically be a slave to the R-7000, whatever mode or frequency the R-7000 can use, the Softrock would display on a monitor and output the audio.  A very inexpensive, yet very desirable addition to a station.\n> \n> There will soon (in a matter of weeks) be a UHFSDR available, which is a low power TRANSCEIVER, at about the same price as the FCD, however that won't be as simple as a plug and play USB device.\n> \n> There is also a $74 Softrock HF 1 watt transceiver available; I have one on my bench which will be my next project.  And there are also inexpensive (under $100) kits for amplifiers with around 20 watts output available from TAPR. \n> \n> Using these inexpensive devices, along with free software such as SDR-Radio (by the same author of Ham Radio Deluxe) is an eye opening experience when compared with many of today's expensive HF rigs.\n> \n> There are also 'beta' Softrocks that cover up to 144 MHz. The near future certainly holds a lot of promise for even better inexpensive SDR transceivers.  The FCD looks like a great deal, and I plan to order one when they become available again.\n> \n> 73 de Sebastian, W4AS\n> \n> \n> On Jan 4, 2011, at 7:21 AM, Mark L. Hammond wrote:\n> \n> > I think the most significant difference between the FCD and the Softrocks is FREQUENCY, isn't it?  Are there Softrocks that will do 64-1700 MHz?  \n> > \n> > I don't remember for sure, but I thought the Softrocks are good only up to 30 or 50 MHz.  The FCD is from 60-ish to 1.7GHz.   That makes them apples to oranges in comparison.   \n> > \n> > So, if I have this right, I would need a Softrock and what---two or three downconverters?--to cover just 2M, 70cm, and 23 cm.  Oh, add a sound card.  That's more than the cost of a FCD shipped to the US...\n> > \n> > If you're using an IF of a receiver, you need the receiver!! and the Softrock.  And a sound card.\n> > \n> > I have three Softrock kits sitting on the bench right now, for those exact reasons above.  The FCD  is a one piece, plug and play solution for the bands I wanted to work (VHF, UHF).   There really isn't a better option, far as I can tell...\n> > \n> > 73,\n> > \n> > Mark N8MH \n> > \n> > \n> > \n> > \n> > \n> > At 05:19 AM 1/4/2011 +0000, you wrote:\n> >> He could go with a 10.7 MHz fixed IF Softrock for about $30 (with the special crystal) instead of $175 for the FCD and maybe have a chance at getting one sooner than later if he really wanted to use it with the ICOM.\n> >> \n> >> A soundcard is needed for a softrock, but I have used a $50 USB one in the past from China no problem if he can't use the built in one (like on a laptop).\n> >> \n> >> Fred \n> >> \n> >> Jan 3, 2011 06:26:01 PM, [email protected] wrote:\n> >> \n> >> ===========================================\n> >> \n> >> \n> >> \n> >> \n> >>> Date: Mon, 3 Jan 2011 14:26:55 -0700\n> >>> To: [email protected]\n> >>> From: [email protected]\n> >>> Subject: [amsat-bb] Re: Need Advice for SDR choice\n> >>> \n> >>> At 06:25 PM 1/2/2011 -0500, [email protected] wrote:\n> >>> \n> >>> I'm going to look into SDR.  My Icom r-7100 has an IF out jack I could feed \n> >>> into a unit.\n> >>> \n> >> \n> >> That was my first thought too, but R-7000 receiver's IF is at 10.7 MHz and the FCD only goes down to 64 MHz.\n> >> \n> >> On the other hand, the R7000's tuning range isn't that different from the FCD, and I bet the FCD has better specs, so why bother with the receiver?\n> >> \n> >> Greg  KO6TH\n> \n> \n> _______________________________________________\n> Sent via [email protected]. Opinions expressed are those of the author.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n \t\t \t   \t\t  ",
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}