March 2013 - AMSAT-BB - mailman.amsat.org

EQUiSat Optical Beacon CubeSat
by Trevor . 17 Oct '18

17 Oct '18

Students at the Ivy League Brown University are developing an amateur radio satellite EQUiSat that will carry a Xenon Flash Tube (XFT) subsystem to act as an Optical Beacon that should be visible to the unaided eye of observers on Earth. See http://www.uk.amsat.org/?p=10635 73 Trevor M5AKA AMSAK-UK http://www.amsat-uk.org/ ----

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LVB Tracker USB serial port driver for Windows 7 x64?
by Bill Bordy, NJ1H 22 Dec '16

22 Dec '16

Has anyone located a driver for the LVB Tracker internal USB to serial port adapter on Windows 7 x64? If not, has anyone reverted to the serial port connection on LVB Tracker and used an external USB to serial port adapter successfully with SatPC32 on Windows 7 x64? I have an Edgeport multiple USB to serial port that has drivers for Windows 7 x64 that I will use if I have to. I would prefer using the LVB Tracker with its USB to serial adapter if someone has another solution. 73, Bill NJ1H

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AO-16 telemetry 3 Oct 2010
by Mark L. Hammond 01 Jul '16

01 Jul '16

Hi All, Here is a quick AO-16 update. On Sunday I turned AO-16 long enough to get some telemetry packets. The satellite would remain on for less than one minute after being commanded on. A quick test of the "bent pipe" voice mode repeater was successful. . The "hardware watchdog timer problem" is still evident; as expected, spacecraft temperatures are insufficient to keep the transmitter ON (needs to be above 15 deg C). Orbit projections suggest that satellite illumination conditions will not result in increased temperatures for nearly 10 years. Command stations do periodically turn AO-16 "ON" to check on its condition and see if the hardware timer problem has "automagically" fixed itself (which in not anticipated, but who knows...). AO-16 telemetry 3 Oct 2010 1838 utc PACSAT MBL Telemetry Decoder Ver. 1.3 (c) Mike Rupprecht, DK3WN =============================================================================== (average values) +10V Battery Bus : 0.00 V Battery Charge Reg : 0.55 mA Base Temp : 9.07 °C PSK RF Out : 1.90 W +5V RX Bus : 4.87 V +8.5V RX Bus : 8.49 V +10V RX Bus : 11.24 V Here is another teaser :) Several months ago I commanded the AO-16 S-band transmitter ON; it too remains functional (albeit weak), and was received by me, Drew KO4MA, and Alan WA4SCA. 73, -- Mark L. Hammond [N8MH]

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rx Sirius sat beacons with AIDC3733 converter
by f6htj＠aol.com 24 May '13

24 May '13

In addition: Good reception of sat carriers (+/- 2320.190 MHz) with AIDC3733 2400>144 converter (was modified for AO40 rx): receiver set at +/- 64.190 MHz (instead of 144.190) 73 de Michel F6HTJ ------------------------------------------------------------------------------------------------------ Hello all; for information here in south west Europe we use 2320,100 to 2320,300 cw/ssb portion of 13cm band for tropospheric , AS , RS, traffic. I have been told by Piero I5CTE there is permanent continuous carrier beacon around 2320.190 MHz (+/- doppler) by 1 of the 3 Sirius elliptic NA satellites. It appears reception is very good here with small 20 turn helix antenna (in spite of 12m heliax coax) peaking 539. Apogee (50000km ) around 325deg with 27deg elevation. F5BOF reports same signal with small hand held 25 elements f9ft yagi. So these are for us very interesting beacons. Depending hours we can receive 1 o 2 sats. Real time positions (Sirius-1 / Sirius-2 / Sirius-3) here: http://www.n2yo.com/satellites/?c=33 Any info about beacon sat polarisation and eirp ? 73 de Michel F6HTJ Amsat #7409

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2M1EUB/P OPPS SCOTLAND 6/4/13
by paul robinson 02 Apr '13

02 Apr '13

Hi guys i will be qrv from io87nc scotland from 6/4/13 for 7 days on all sats as 2M1EUB/P more info on http://www.qrz.com/ under 2m1eub 73 de paul 2E1EUB

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cw decoding software
by Lizeth Norman 01 Apr '13

01 Apr '13

Hi all, My cw is pretty poor. Not up to snuff to copy the hex character groups of most telemetry streams. Am looking to use the sound card in a computer to decode cw telemetry. What are people using? Thanks, Norm n3ykf

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pre-amps on amsat store ?
by Robert Coppock 31 Mar '13

31 Mar '13

ahoy, the pre-amps for sale on the web site; are they the mar-7 for sure, or mar-6 amp ? i operate out in the sticks, and also in the RF noisy s.f. bay area. thanks, 73, robert k f Ø g cn81 / cm97-98

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RSGB Centenary Call Satellite Attempt 4th April
by Clive G7SVI 31 Mar '13

31 Mar '13

Hi All My home club G4RFR are hosting the RSGB Centenary Call G100RSGB on Thursday 4th April from Wimborne, Dorset located on the South Coast of the UK. There are some passes throughout the day high enough to attempt some QSOs. All times here are UTC VO-52 08:32 - 08:42 AO-7 08:58 - 09:13 FO-29 10:03 - 10:21 FO-29 11:48 - 12:05 AO-7 12:37 - 12:51 AO-7 14:25 - 14:44 AO-7 16:16 - 16:37 VO-52 17:54 - 18:06 Hopefully we will get some success. Sorry they will not count for anyone hunting the RSGB Awards but hope to work you on other modes. We will post alerts here: http://www.rsgb.org/aboutrsgb/rsgbcentenary2013/?id=alerts-and-spots 73s Clive - G7SVI

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News Posting on www.amsat.org
by JoAnne Maenpaa 31 Mar '13

31 Mar '13

Hello Everyone, Our http://www.amsat.org web pages continue their recovery to return the tools and features we enjoyed. The good news is that a new-and-improved web news posting system is proving itself to be quite useful. So, while the remainder of the pages will be restored "soon" we are now able to post news items as soon as possible without waiting for the weekly ANS bulletin news cycle. The two most recent news items posted include: + ARRL Seeks Comments on 5 and 10 GHz National Band Plans + Auckland Technology Convention KiwiSAT Photos Posted If you hear of anything interesting to Amateur Radio in Space please send it to ans-editor(a)amsat.org. -- 73 de JoAnne K9JKM k9jkm(a)amsat.org Editor, AMSAT Journal

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Spring Issue of OSCAR News
by M5AKA 31 Mar '13

31 Mar '13

E-members of AMSAT-UK can now download the PDF of the Spring Issue of OSCAR News via the website http://www.amsat-uk.org/ This edition has an article on the ISS DATV system - HAM-TV: from theory to real practice by IW4BLG. 73 Trevor M5AKA ----

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