November 2017 - AMSAT-BB - mailman.amsat.org

Falconsat - Compressing Image Files
by Tony 06 Nov '17

06 Nov '17

All: Does anyone know of a compression program specifically designed to compress image files? Something beyond the capabilities of PKZIP or 7-Zip? I've resized and re-sampled images to a reasonable size that would be appropriate for Falconsat, but I was wondering if there's something else one can do to reduce file size even further. Tony -K2MO

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Falconsat - Compressing Image Files
by Roland Zurmely 06 Nov '17

06 Nov '17

Use JP2 or JPEG 2000 73 de Roland PY4ZBZ

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G-5500 Set up cal?
by Darrell W4CX 06 Nov '17

06 Nov '17

In doing some Full-Scale adjustments to my G-5500 Rotor, I accidentally fiddled with the Output Voltage Adjustments by mistake. Now everything is fubar because I wasn't careful enough. Is there a guide somewhere to help me get the Out Voltage setting back correctly? The Full Scale adjustments are well documented in the manual. (BTW, I am using the LVB box, but have it disconnected now). Thanks.

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Turnstile Antenna Design
by vk4tec＠tech-software.net 06 Nov '17

06 Nov '17

http://59.167.159.165/satreporter/turnstile.pdf

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Falconsat-3 APRS
by Tony 05 Nov '17

05 Nov '17

All: Paul, N1PEB, managed to work Falconsat via APRS mobile this evening -- little else in the way of APRS. I'll be monitoring the next pass. Tony -K2MO

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SSTV on XW-2D
by Frank G 05 Nov '17

05 Nov '17

Listened to the 2200Z pass over NY and heard what I thought was SSTV throughout the entire pass right in the middle of the transponder passband. I could not decode with either DM-780 or MMSSTV. Can anyone confirm what this could have been ? Thanks Frank WA2NDV

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Falsonsat-3 overload
by vk4tec＠tech-software.net 05 Nov '17

05 Nov '17

In an attempt to increase the signal strength I added a LNA in front of my AirSpy Mini Whet I noticed was that the decodes went down I tried some local signals I noticed the signals were distorted. So my advise is get antenna gain and high Place the Software Defined Radio at the antenna Be careful not to overload Arrow and rotator coming Andrew

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awards
by wa4hfn＠comcast.net 05 Nov '17

05 Nov '17

We have a tripple winner Congrats to Al XE2AT for the following Squirt the Birds awards Grid Master #6 5 in EM55 #61 Got Grids? #18 These awards are free and we at Squirt the Birts support Amsat NA www.squirtthebirds.com for info 73 WA4HFN Damon em55

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9100 AEA DSP2232 WiSP setup
by kb2mjeff＠att.net 05 Nov '17

05 Nov '17

I had some time today to start working on my Pacsat station. Is anyone else trying to setup a 9100, WiSP, DSP2232, and SatPC32 ? I got the setup to rx 1200 baud APRS packets, but can’t rx 9600 baud from Falconsat-3. I’m using an old cable I used to use with a 910, and an FT-847. I have 9600 baud turned on. Anyone else get this to work? 73 Jeff kb2m --- This email has been checked for viruses by AVG. http://www.avg.com

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D-Star and FM/SSTV CubeSats launch Nov/Dec
by M5AKA 05 Nov '17

05 Nov '17

November 28 launch for D-Star One CubeSat which will host four D-Star communication modules, two of them will be fully dedicated to amateur radio http://www.d-star.one/ December 20 launch for HA-1 CubeSat with FM transponder and SSTV Developed by Teenagers Amateur Radio Center of Activity in Huai'an http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=589 IARU Region 1 announce new edition (8.00) of the VHF Handbook now available for free download http://www.iaru-r1.org/index.php/vhfuhsshf/1737-vhf-manager-handbook-versio… Page 12 of the November issue of SatMagazine features an article on the Jordanian JY1-SAT CubeSat which will carry an Amateur Radio linear transponder. Download the magazine PDF from http://www.satmagazine.com/ Jordan’s first satellite – JY1-SAT https://amsat-uk.org/2017/10/24/jordans-first-satellite-jy1-sat/ Trevor M5AKA ---- AMSAT-UK http://amsat-uk.org/ Twitter https://twitter.com/AmsatUK Facebook https://facebook.com/AmsatUK YouTube https://youtube.com/AmsatUK ----

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