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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/QLXP3REZ65VQJWZ6LVVA4L3PBYKN4I7G/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "[email protected]", "message_id_hash": "QLXP3REZ65VQJWZ6LVVA4L3PBYKN4I7G", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/IQ2M7GBPXN33JS6RVBKXMKHSOZLZXMWL/", "sender": { "address": "planophore (a) aei.ca", "mailman_id": null, "emails": null }, "sender_name": "Graham", "subject": "Re: [amsat-bb] SDR's for satellite work, was: ===> Re: Yaesu FT-857D", "date": "2016-01-24T13:21:04Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/VH6LL2WBTYZUHP6FQ7QNAKXBWVVRWFGX/", "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Clayton,\n\nThank you for posting your comments. These are the sorts of specifics I \nhave been looking for.\n\ncheers, Graham ve3gtc\n\n\nOn 2016-01-23 02:37, Clayton W5PFG wrote:\n> Graham,\n>\n> I know you specifically said you prefer Linux, but the solution which \n> brought me the most success was HDSDR+SatPC32. The two applications \n> talk together well via CAT and a pair of virtual serial ports. This \n> gives you full Doppler shift adjustment by computer control.\n>\n> My FT-857D was configured as a radio in SatPC32. The FCDP+ was \n> configured as the other radio in SatPC32.\n>\n> If you moved the dial on the radio, there was full, tracking feedback \n> to SatPC32 and HDSDR. If you tuned on the HDSDR, it adjusted the \n> radio as well.\n>\n> I made several hundred contacts on all the available satellites during \n> the time I was playing with this in the shack.\n>\n> The only drawback to the solution was having to swap coax lines \n> between 2m and 70cm.\n>\n> 73\n> Clayton\n> W5PFG\n>\n>\n>\n> On 1/22/2016 18:01, Graham wrote:\n>> Thank you Stefan (and all),\n>>\n>> I think I will put the FCDP+ at the top of my list for now.\n>>\n>> Regards software. This has been a bit hit and miss with me for SDR's.\n>>\n>> I like SDR# but it is Windoze only. I prefer Linux but use Windows when\n>> have to. On Linux I have been using GQRX. They all have their pluses and\n>> minuses but the challenge becomes getting everything to place nice\n>> together, for example which OS? I like GPREDICT and there are Windows\n>> and Linux flavours but the FCDP+ software is Windows only (or is it? I\n>> will have a go look see).\n>>\n>> I guess it is time to do some more reading and research.\n>>\n>> Glad I didn't get a HackRF.\n>>\n>> cheers, Graham ve3gtc\n>>\n>>\n>>\n>>\n>> On 2016-01-22 22:59, Stefan Wagener wrote:\n>>> Hi Graham.\n>>>\n>>> If you check online, the HackRF has been a huge disappointment as a\n>>> receiver for a number of reasons. The airspy is better but at the end\n>>> it is the FCD Pro+ that will outperform all of them especially with\n>>> the narrow SAW filters on 2m and 70cm. I had all three and tested them\n>>> extensively for satellite work. At the end I only kept the FCDplus+.\n>>>\n>>> Hope this helps,\n>>>\n>>> Stefan, VE4NSA\n>>>\n>>> On Fri, Jan 22, 2016 at 4:33 PM, Graham <[email protected]\n>>> <mailto:[email protected]>> wrote:\n>>>\n>>>\n>>> very interesting discussion.\n>>>\n>>> Does anyone have any first hand experience using the Airspy SDR\n>>> http://airspy.com/\n>>>\n>>> It is in the same price range as FCDP+ and a bit more than the\n>>> SDRPlay.\n>>>\n>>> There are so many to choose from with prices all the over the\n>>> place. I realize that you get what you pay for but sometimes that\n>>> is not always obvious, for example the HackRF devices are\n>>> considerably more the SDRPlay/FCDP+/Airspy but as someone\n>>> commented, lacks front end filtering making them a poorer choice.\n>>>\n>>> So far I have been only dabbling with receiving the many\n>>> satellites now flying about. It has been a long time since I have\n>>> made any contacts through any of them, that was back in the OSCAR\n>>> 7/8, RS10/11 era.\n>>>\n>>> cheers, Graham ve3gtc\n>>>\n>>>\n>>>\n>>>\n>>>\n>>> On 2016-01-22 20:45, Clayton W5PFG wrote:\n>>>\n>>> Like others have mentioned here, the $20-25 RTL Dongles have\n>>> not worked very well for me when combined with a transmitter.\n>>> The FT-857D/FUNcube DonglePro+ combo worked well for me. Not\n>>> one of the two RTL dongles was suitable for regular use. I\n>>> rank the RTL's as a failure for both mode B or J birds without\n>>> significant additional filters. For simple receive use,\n>>> they're okay.\n>>>\n>>> If compactness was a desire, the FCDP+ would be my choice.\n>>> However, the SDRPlay mentioned has a lot more bandwidth\n>>> capability and is reasonably priced from HRO in the states.\n>>>\n>>> 73\n>>> Clayton\n>>> W5PFG\n>>>\n>>>\n>>> _______________________________________________\n>>> Sent via [email protected] <mailto:[email protected]>. AMSAT-NA\n>>> makes this open forum available\n>>> to all interested persons worldwide without requiring membership.\n>>> Opinions expressed\n>>> are solely those of the author, and do not reflect the official\n>>> views of AMSAT-NA.\n>>> Not an AMSAT-NA member? Join now to support the amateur satellite\n>>> program!\n>>> Subscription settings: \n>>> http://www.amsat.org/mailman/listinfo/amsat-bb\n>>>\n>>>\n>>\n>> _______________________________________________\n>> Sent via [email protected]. AMSAT-NA makes this open forum available\n>> to all interested persons worldwide without requiring membership.\n>> Opinions expressed\n>> are solely those of the author, and do not reflect the official views of\n>> AMSAT-NA.\n>> Not an AMSAT-NA member? Join now to support the amateur satellite \n>> program!\n>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n>>\n\n", "attachments": [] }