August 2011 - AMSAT-BB - mailman.amsat.org

Re: Listen live to ARISsat-1 in 15 minutes
by PA3GUO 12 Aug '11

12 Aug '11

..and since ISS was OK, I am afraid ARISSat-1 was silent. on the other hand, it was a max 6 degress elevation pass. next pass 2124 utc - 31 degr elevation Henk Van: PA3GUO [mailto:pa3guo@amsat.org] Verzonden: vrijdag 12 augustus 2011 21:59 Aan: amsat-bb(a)amsat.org CC: Gould Smith (gouldsmi(a)bellsouth.net) Onderwerp: RE: Listen live to ARISsat-1 in 15 minutes Only noise, let's hope something was wrong in my station and not ARISSat-1. At the end of the pass I switched to ISS packet. Henk Van: PA3GUO [mailto:pa3guo@amsat.org] Verzonden: vrijdag 12 augustus 2011 21:33 Aan: amsat-bb(a)amsat.org CC: Gould Smith (gouldsmi(a)bellsouth.net) Onderwerp: Listen live to ARISsat-1 in 15 minutes http://www.pa3guo.com/webradio.html Live ARISSat-1 audio stream from The Netherlands, Europe, JO21RJ. Equipment: FCD + 2x6 elements beam Will tune to FM downlink Upcoming pass: 19:50 utc 6 degr (in 15 minutes !) Henk, PA3GUO,

1 0

Re: Listen live to ARISsat-1 in 15 minutes
by PA3GUO 12 Aug '11

12 Aug '11

Only noise, let's hope something was wrong in my station and not ARISSat-1. At the end of the pass I switched to ISS packet. Henk Van: PA3GUO [mailto:pa3guo@amsat.org] Verzonden: vrijdag 12 augustus 2011 21:33 Aan: amsat-bb(a)amsat.org CC: Gould Smith (gouldsmi(a)bellsouth.net) Onderwerp: Listen live to ARISsat-1 in 15 minutes http://www.pa3guo.com/webradio.html Live ARISSat-1 audio stream from The Netherlands, Europe, JO21RJ. Equipment: FCD + 2x6 elements beam Will tune to FM downlink Upcoming pass: 19:50 utc 6 degr (in 15 minutes !) Henk, PA3GUO,

1 0

ARISSat-1 not heard
by Mike Rupprecht 12 Aug '11

12 Aug '11

No signals heard on my 10 deg pass from 19:50 UTC - 19:59 UTC 73, Mike DK3WN (JN49LR)

1 0

Listen live to ARISsat-1 in 15 minutes
by PA3GUO 12 Aug '11

12 Aug '11

http://www.pa3guo.com/webradio.html Live ARISSat-1 audio stream from The Netherlands, Europe, JO21RJ. Equipment: FCD + 2x6 elements beam Will tune to FM downlink Upcoming pass: 19:50 utc 6 degr (in 15 minutes !) Henk, PA3GUO,

1 0

Funny From Emergency to low power to High power mode in 7* El pass !!
by Nader Omer 12 Aug '11

12 Aug '11

On the last pass 18:12 - 18:19 the status of the ARISSat-1 Mode changed from Emergency Mode to Low power Mode and finally to High Power Mode with in 7 mins long pass , max elevation is 7* too . Something Funny is going on . The signal is stable thought the all pass I have got a movie ,May i Will post it later All this info Injected to ARISSat-1 command station via internet. 73 de Nader/ st2nh

2 1

ARISSat-1 Telemetry 12 Aug 1022 UTC and 1155 UTC
by Sion Chow Q. C. (9W2QC) 12 Aug '11

12 Aug '11

Dear All, I notice that the MET was reset too as per the following telemetry copied from ARISSat-1 over West Malaysia: 12 Aug at 1822 MYT (3 deg Elevation) MET - 69min IHU Temp - 42c -Nothing else heard due to strong QSB- 12 Aug at 1955 MYT (57 deg Elevation) MET - 65 min IHU Temp - 42C Control Panel Temp - 31C Battery Voltage - 35.50v Battery Current - ??? (strong QSB) Sorry for the delay in sending this out, as I was away from the shack. And hope that this will be useful to the command team. 73, Sion, 9M2CQC

1 0

Re: ARISSat-1 battery eclipse voltage decreasing
by PA3GUO 12 Aug '11

12 Aug '11

Dear Gould / ARISSat-1 team, Thanks for sharing this ! When the battery would go dead (or has very long charge times), to what extend would that also impact the low power mode ? Better phrazed: what are the requirements to go/stay in low power mode ? Is there a (no power) mode, where there is not enough power to go even into low power mode ? A kind of test/emergency mode, where the uplink/xponder and even FM is off but only the CW beacon is still on ? ... another question: Which type of command capabilities are available to the team, only a bare minimum (satellite TX on/off) or more ? Best regards, Henk, PA3GUO > The ARISSat-1 Battery voltage is decreasing each eclipse period. It therefore is taking longer for the Battery to charge up to 32.5V to allow the switch from Low Power to High Power when the satellite enters an illumination period.

1 0

ARISSat-1 in Emergency Mode
by Nader Omer 12 Aug '11

12 Aug '11

Hi Jerry N0JY Yes TLM info you got was injected by me last pass 16:34 -16:45 UTC . screen shot is at Mike Blog http://www.dk3wn.info/p/ 1st time this noticed at 10:33 UTC by Tetsu san, JA0CAW again screen shot at Mike blog . I hope this help!!! 73 de Nader st2nh

1 0

ARISSat-1 telemetry
by n0jy＠lavabit.com 12 Aug '11

12 Aug '11

The latest on the ARISSATTLM web page shows the bird in "emergency power"? I'm not at home to do extensive web discovery but given the earlier possible clock reset and now this, are things OK? ARISSat-1 Telemetry - Mobile Version This telemetry was received on Fri, 12 Aug 2011 16:41:06 UTC Mission Elapsed Time 4078 00d:01h:07m:58s Mode: EMERGENCY PWR Battery Batt Voltage 35.897 V Batt Current 00.000 A 2.5V Ref 05.064 V Net Amp Hours 00.006 A Battery is CHARGING Jerry N0JY

1 0

Tuning Uplink
by Paul Delaney - K6HR 12 Aug '11

12 Aug '11

When I transmit to a satellite I do not hear myself on the downlink. I've read that tuning with the +/- keys in SatPC32 should bring my signal into the downlink. How far off center could these numbers be before I would hear myself? I am tuning to +/- 3000 or so and hear nothing even on very high passes. Any hints or tips would be greatly appreciated! Paul Delaney - K6HR paul.hamradio(a)verizon.net http://k6hr.dyndns.org:8080

1 0