April 2016 - AMSAT-BB - mailman.amsat.org

Re: [amsat-bb] SatPC32 Setup for ISS Packet
by Dave Webb KB1PVH 10 Apr '16

10 Apr '16

Bob, Use SatPCISS because it puts the radio in same band split mode. Dave-KB1PVH Sent from my Samsung S4

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FUNcube-1
by Graham Shirville 10 Apr '16

10 Apr '16

Hi All, FUNcube-1 is now changing mode autonomously again. In sunlight – Educational Mode and in eclipse – Amateur mode. The FUNcube operations team really appreciates the telemetry that we continue to receive from stations around the globe. This data is proving invaluable in helping us understand exactly what the status is of all the on board systems and we are very grateful for everyone’s support. If you have the opportunity to leave a receiver running on the 145.935MHz nominal downlink frequency with FUNcube Dashboard running we would be very pleased to have the data you receive. Full details of the FUNcube Dashboard and the associated Data Warehouse can be found at the https://funcube.org.uk/ website. Many thanks and 73 Graham G3VZV

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SatPC32 Setup for ISS Packet
by Bob 10 Apr '16

10 Apr '16

Hi all, I've been using SatPC32 with my Icom IC-9100 for several years, I have always been using it with cross-band birds like AO-73, FO-29, etc. For these satellites the Main is set to one band and the Sub to another. I have the Doppler.sqf file set correctly for the 145.825 Packet Robot, and I can see the SatPC32 display show me both the uplink and downlink frequency with logical doppler corrections. However, If the radio is in Satellite mode, it insists on transmitting on 70cm, or if I take it out of satellite mode, only the downlink frequency is actually corrected (it will transmit on the downlink frequency as well). Does anyone have any experience using SatPC32 with a Icom radio on the ISS Packet Robot? 73, Bob, WB4SON

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STATIONS WITH DISTORTED AUDIO ON AO-85
by jeffory broughton 10 Apr '16

10 Apr '16

I hear many stations with grossly distorted uplink audio on AO-85. A- Be sure your keps are up to date. B- use the newest doppler.sqf files C- use N.B. tx ,if your rig does not have It,back off the mic and reduce the mic gain while monitoring your down link for clean audio. D- it is possible to have crystal clear audio on AO-85 with a little fine tuning. Jeff ,WB8RJY jeff broughton

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AO-7 MODE A AGAIN TODAY !
by jeffory broughton 10 Apr '16

10 Apr '16

Caught Oscar 7 in mode A again this afternoon.Was on with WN9M on 29.450.He was smart enough to listen for the beacon I n 29.502 and heard it ! I was not so smart. Discovered a secrete, listen on mode B, if you don't hear the typical transponder noise Oscar generates ,it's in mode A ! jeff broughton. WB8RJY

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Link budgets for upcoming HEO/GEO sats
by Jim Barbre 10 Apr '16

10 Apr '16

Hi all, Given that people are currently working on groundstations for the upcoming HEO/GEO sats, I am in hopes that at least some of the following questions can be answered. What kind of power will be required on the 5GHz uplink? Does anyone currently make a linear amp or upconverter that can be mounted at the antenna for the 5GHz uplink? Will I be able to use a helix antenna on the uplink or will I be limited to using a dish? Same question with regards to antenna usage for 10GHz downlink. What size dish? With AO-10 and AO-13 I could point my antennas at the satellite and not have to move them for an hour or longer. These new sats will be using microwave frequencies. What kind of realistic expectation do I have of being able to point a dish at the satellite before having to tweak it? Otherwise said, will a rotator be absolutely necessary? Thanks for the info. Looking forward to working the next generation of HEO/GEO sats. 73 Jim Barbre KB7YSY

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Satellite Connection
by Rupert Hamblin 10 Apr '16

10 Apr '16

Hi All, Would be grateful for any advice or your thoughts on the following...! Ok, so I have my station virtually completed now. I have the rotator setup correctly and with the LVB Tracker interface unit and SatPC32 now tracking SATs correctly (it appears). I have a 4 ELE (2M) and 9 ELE (70cm) on the rotator. I can receive very good copy of downlinks from quite low passes on both 2M & 70CM, and I have recently had the FT-847 lab repaired and tested on output - which I know are working ok. The problem I have is - whichever satellite i try to work, low pass / high pass, SSB or FM, high power or low power - I am unable to hear my own signal on the downlink and hence so far have no QSO's ....Any suggestions or clues as to what I may be doing wrong or have setup incorrectly...? Would appreciate any clues / tips here ! :-) Cheers RH / G0TKZ

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JAISAT-1 linear transponder CubeSat + D-STAR Satellite launch
by M5AKA 10 Apr '16

10 Apr '16

JAISAT-1 linear transponder CubeSat update in RAST April Meeting Report https://amsat-uk.org/2016/04/09/rast-april-meeting-report/ ISS Slow Scan TV transmissions on 145.800 MHz FM in April https://amsat-uk.org/2016/04/09/iss-sstv-april/ Elementary School SSTV CubeSat to deploy from ISS in mid-May https://amsat-uk.org/2016/03/03/school-sstv-cubesat-to-deploy-from-iss/ UK Space Agency say Ham Radio in Top 10 https://amsat-uk.org/2016/04/07/uk-space-agency-ham-radio-in-top-10/ The Derby High School to speak to ISS https://amsat-uk.org/2016/04/03/derby-high-tim-peake/ EngineerIT magazine article on quest for amateur Geostationary satellite payloads https://amsat-uk.org/2016/04/07/geostationary-ham-radio-satellites/ D-STAR transponder satellite to launch from Kourou April 22 https://amsat-uk.org/2016/04/05/d-star-satellite-to-launch-from-kourou/ 73 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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Yesterday HamTv from ISS
by Fer 10 Apr '16

10 Apr '16

good video/audio signal from ISS during Belgium telebridge station test 09 april 2016 16:24-16:34 UTC pass over Europehere my recording from .TS file ISS Hamtv 09apr16 from .TS file | | | | | | | | | | | ISS Hamtv 09apr16 from .TS file | | | | 73 de Fer IW1DTU

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FS: LL Grace - Kansas City Tracker/Tuner Satellite Antenna Controller
by Joe Leikhim 10 Apr '16

10 Apr '16

More spring cleaning! http://www.ebay.com/itm/162033584998?ssPageName=STRK:MESELX:IT&_trksid=p398… -- Joe Leikhim Leikhim and Associates Communications Consultants Oviedo, Florida JLeikhim(a)Leikhim.com 407-982-0446 WWW.LEIKHIM.COM

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