[amsat-bb] Ham Radio Now Announces Kickstarter Campaign for 2014 ARRL/TAPR DCC (Digital Communications Conference) in Austin, TX
Ham Radio Now Announces Kickstarter Campaign to Attend & Record Videos of 2014 ARRL/TAPR DCC (Digital Communications Conference) in Austin, TX. Gary, KN4AQ of ARVN & Ham Radio Now produced high quality video of the ARRL/TAPR DCCs (Digital Communications Conference) in 2008 and 2009 (released on DVD), and 2011, 2012 and 2013 (released on high-definition streaming video). The videos covered every talk, including the Saturday banquet "keynote" and the Sunday Seminar, usually a four-hour "deep dive" into a single subject. The videos have been an invaluable resource for hams who weren't able to attend the sessions, and even for hams who were there in person and wanted a review. Gary, KN4AQ is based in North Carolina. Last year, he conducted a successful Kickstarter campaign to raise funds to cover both his expenses to travel to the 2013 ARRL/TAPR DCC (Digital Communications Conference) in Seattle and produce & make available on-line video of the entire DCC including all sessions. The year Gary is conducting another Kickstarter campaign this year to cover his expenses to attend the 2014 DCC in Austin, TX and record & produce the entire DCC again. Please help TAPR & Ham Radio Now by contributing to Gary's Kickstarter campaign at the link below: https://www.kickstarter.com/projects/860504337/hamradionow-video-of-the-2014-arrl-tapr-dcc/pledge/new More information about the DCC is at: www.tapr.org/dcc Thanks for contribution to the Ham Radio Now DCC Kickstarter campaign and look forward to seeing many of you at the DCC. ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Re: [amsat-bb] Digital Satellites Question
> The biggest load in a communications satellite > is almost always the downlink RF power amplifier(s)... True for some, not true for others. The locations of ham operators are only about 10% of the earths surface. 90% of transmitter power can be saved if the transmitter is not left on 100% of the time. An APRS satellite takes advantage of this by knowing not only are there users only 10% of the time, but even over a saturated ham area, the TX/RX duty cycle cannot exceed 40% or so. The result is that the transmitter is only on for 4% of the orbit. This means we can run a 5W transmitter to make the packets hearable on an HT with a stock antenna, but that the transmitter AVERAGE power is only 200 mW (less power than the receiver). And by putting the downlink on 2m instead of UHF, there is another 9 dB advantage to OMNI anennas. Add that to the 10 dB advantage of running a 5W transmitter instead of 0.5W and you can see that an APRS cubesat can have almost 19 dB downlink advantage over the typical UHF 0.5W downlink. (theoretically)... Many other factors of course are involved, but we need a mix of satellites and modes, but the above is why I like AX.25 for short bursty texting and data for a large number of people to share in a short period of time. Bob, WB4APR ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] LituanicaSAT-1 (LO-78) Decayed
According to Space-Track.org, LO-78 decayed early this morning: 39569 LITUANICASAT 1 1998-067EN LTU 2014-07-28 13:29:00 2014-07-28 0:00:00 0.096 decay_msg TLE Historical Congratulations to all who were involved in this successful project and we look forward to any future Lithuanian amateur radio satellite projects. 73, Paul Stoetzer, N8HM Washington, DC ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Cape-2 Voice Repeater
Successful voice repeater command: http://www.qsl.net/py4zbz/C2vr2807.wav 73 de Roland PY4ZBZ GH70un ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AMSAT-UK Colloquium Pictures
I have added some of the AMSAT-UK International Space Colloquium pictures taken by Mike Rupprecht DK3WN to the AMSAT-UK Facebook page, see https://www.facebook.com/media/set/?set=a.739813039395081.1073741828.208113275898396 If anyone else has any pictures of the event which I can use can you email them to me (max 20 meg attachment) or send Dropbox / Flickr / Instagram link. Trevor M5AKA AMSAT-UK Website http://amsat-uk.org/ Facebook https://www.facebook.com/amsatuk Twitter https://twitter.com/AMSAT_UK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Enhanced FUNcube-1 Dashboard App now available
See http://amsat-uk.org/2014/07/28/enhanced-funcube-1-dashboard-app/ Also on the AMSAT-UK site : Murray Niman G6JYB Appointed RSGB Spectrum Chair http://amsat-uk.org/2014/07/28/murray-niman-g6jyb-appointed-rsgb-spectrum-chair/ UK Space Agency: UKube-1 Success http://amsat-uk.org/2014/07/28/uk-space-agency-ukube-1-success/ ARISS contact planned with ESA Space Camp, Fleetwood, UK http://amsat-uk.org/2014/07/24/ariss-contact-planned-with-esa-space-camp-fleetwood-uk/ Some pictures from last weekend's Colloquium are now on the Facebook page at https://www.facebook.com/media/set/?set=a.739813039395081.1073741828.208113275898396 Trevor M5AKA AMSAT-UK Website http://amsat-uk.org/ Facebook https://www.facebook.com/amsatuk Twitter https://twitter.com/AMSAT_UK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] test
Thanks nick Office 337 593 8700 Cell 337 258 2527 Helping UL become a world Class Engineering and Educational School ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Yaesu G-5500 grounding question
Hi all! I want to use the ground conductor that is in both the elevation and azimuth rotators on pin #3 on the rear connectors. The plug on the rotator controller is a two prong polarized type. The upshot of this is that there is no actual connection to earth ground at the chassis. Can I just add a grounding lug to the back of the controller and attach it to earth ground? The reason this is an issue is that I have installed mast (fiberglass cross arm, really) mount preamps. My radios are battery powered, hence no real ground at the end of the coax. Treading lightly here as there are ogres lurking. Norm n3ykf ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
