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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/BH3JMKUJFI7BHMWR2GO4ZV7UYYMJAXI4/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "[email protected]", "message_id_hash": "BH3JMKUJFI7BHMWR2GO4ZV7UYYMJAXI4", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/QGKIKFW4WAASHZTTLYQFCARV6B7LMU7D/", "sender": { "address": "vk4tec (a) tech-software.net", "mailman_id": null, "emails": null }, "sender_name": "Andrew Rich", "subject": "Re: [amsat-bb] Global Geo SATCOM system?", "date": "2016-10-07T07:06:04Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/7LT6AD56OU5P4OQ2AWCP35ZHLIDDLDRV/", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/7TXY7DA3ZO35A7U52UANLFKGCLROZRHM/" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "What are the frequencies for the different regions ?\n\nI want to use my SDR to get a dish going \n\nAndrew \n'\n> On 7 Oct 2016, at 01:02, Scott <[email protected]> wrote:\n> \n> The O/S image for the Pi can be downloaded from:\n> \n> https://archive.outernet.is/images/rxOS-Raspberry-Pi/\n> \n> ... there is documentation at:\n> \n> http://rxos.readthedocs.io/en/develop/getting_started/raspberry_pi.html\n> \n> ... but that doc currently seems to cover a lot more than the Pi and also a\n> lot more than just installing & using the system.\n> \n> So, in summary it's a lot more straightforward than you would think from\n> the instructions:\n> \n> -write the O/S image to a micro-SD card for the Pi\n> \n> -point your antenna in the correct direction & plug it into the LNA > SDR >\n> Pi\n> \n> -power on the Pi\n> \n> -from a wi-fi capable computer, connect to SSID \"Outernet\"\n> \n> -in a browser, connect to either 10.0.0.1 or 10.10.10.10 (mine uses the\n> former, but I noticed in the doc that they reference the latter)\n> \n> -the browser interface will walk you through setting up an admin password;\n> you can explore the interface from there\n> \n> Ref. the TP-Link dish, the feed is included. I believe it's more-or-less\n> a dipole.\n> \n> \n> ==================================================================\n> \n> On Thu, Oct 6, 2016 at 12:53 AM, Andrew Rich <[email protected]>\n> wrote:\n> \n>> Scott\n>> \n>> I am interested in getting mine going tonight\n>> \n>> Can you step me through the software side please\n>> \n>> Andrew\n>> \n> \n>>>>>> what feed on the dish ?\n> \n>> \n>> ------------------------------------------\n>> Andrew Rich VK4TEC\n>> w www.tech-software.net\n>> e [email protected]\n>> m +61 (4) 19 738 223\n>> m 0419738223\n>> \n>> \n>> \n>> \n>> \n>> \n>> On 6 Oct 2016, at 9:25 AM, Scott <[email protected]> wrote:\n>> \n>> Hi Bob & everyone.\n>> \n>> I have a partially obscured view at the angle required for geostationary\n>> satellites but was curious to see if I could get Outernet's signal from\n>> Inmarsat 4-F3, which is where Outernet's transmission originates from in\n>> this area (USA East Coast).\n>> \n>> For background, I had used a variety of antennas (patch, vivaldi, DirecTV\n>> dish repurposed) to receive some of the various data streams from Inmarsat\n>> 4-F3 in the past, with varying results.\n>> \n>> I ordered the combination patch antenna / LNA / SDR that Outernet has\n>> assembled optimized for L-Band. That left only the software side to\n>> configure.\n>> \n>> The first option was zero-cost, which was to attempt to decode the\n>> Outernet feed using their guided software install for an existing Linux\n>> computer. This consisted of a number of apps working in concert.\n>> \n>> The \"receiver\" portion worked properly - I did see a reasonable SNR and\n>> mostly error-free data stream. Unfortunately, I never decoded any content\n>> with the other apps either due to their alpha or beta stage of development\n>> or my lack of linux expertise.\n>> \n>> However, at the same time I was corresponding with a couple of other hams\n>> who saw similar results with the \"add on\" apps for a working linux\n>> computer. I have not dug any deeper with that method so as of now, for all\n>> I know that branch of the software might have improved.\n>> \n>> In stark contrast to my lack of success with the linux method was a\n>> turnkey boot image that Outernet makes available for you to write to an SD\n>> card for use in a Raspberry Pi. Consisting of a fairly lite linux OS, plus\n>> all the apps required and optimized for Outernet use, this solution was\n>> very much ready for production use.\n>> \n>> I would say within 2 minutes of booting a new Pi-3 with the Outernet\n>> image, content started downloading to the local storage on the Pi. I\n>> didn't have to do a thing but figure out how to log into the web interface\n>> that is your portal to the Pi. (web as in http; there is no internet\n>> connection, naturally) It was as plug-and-play as you could possibly\n>> get... turn on the Pi and point the antenna. Period. Content just starts\n>> downloading if you have a decent signal. You connect to the Pi from\n>> another computer and any files that have downloaded are available for you\n>> to view.\n>> \n>> Of course the antenna / LNA / SDR was attached before I powered up the Pi\n>> and positioned to have decent visibility in the right direction. And of\n>> course it's easy to see that the better your RF receive situation, the\n>> better will be the rate at which content is received.\n>> \n>> Finally, using items already on-hand for other experiments, I replaced the\n>> patch antenna with the TP-Link 2.4 GHz dish (https://www.amazon.com/\n>> Directional-Parabolic-Connector-Resistant-TL-ANT2424B/dp/B003CFATOW?th=1)\n>> that you often see used by amateurs for experimentation. Never mind that\n>> it's supposedly for a higher frequency and never mind that it's not\n>> circularly polarized, I found that in conjunction with the LNA & SDR from\n>> Outernet, I received a much stronger signal than with the patch antenna.\n>> But in fairness, I have not made a comparison with a 100% clear view of the\n>> sky.\n>> \n>> I hope those very early and limited observations of Outernet's solution\n>> are useful to you.\n>> \n>> -Scott, K4KDR\n>> Montpelier, VA USA\n>> \n>> \n>> ------------------------------------------------------------\n>> --------------------\n>> \n>> -----Original Message----- From: Robert Bruninga\n>> Sent: Wednesday, October 05, 2016 6:51 PM\n>> To: [email protected]\n>> Subject: [amsat-bb] Global Geo SATCOM system?\n>> \n>> AMSAT tinkerers?\n>> \n>> \n>> \n>> OUTERNET is a free worldwide Geostationary Satellite downlink system\n>> designed to bring content to remote areas all over the globe. They have\n>> six geostationary birds covering the entire globe EVERYWHERE. All you need\n>> is a small 18” (or 36” in some very remote areas) to receive content via\n>> your own home-made receiver based on a TV dongle and Rasberry Pi.\n>> \n>> \n>> \n>> Is there anyone on AMSAT-bb that is already receiving this content? We’d\n>> like to hear about how easy it is to set up a receiver.\n>> \n>> \n>> \n>> We have some ideas on how this can be used to augment Ham radio in our\n>> Emergency Response and remote operations missions. See\n>> http://aprs.org/outnet.html\n>> \n>> \n>> \n>> Bob, WB4APR\n>> \n>> \n> _______________________________________________\n> Sent via [email protected]. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions expressed\n> are solely those of the author, and do not reflect the official views of AMSAT-NA.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n\n", "attachments": [] }