AMSAT-BB March 2012

124 participants
211 discussions

LVB Tracker USB serial port driver for Windows 7 x64?

by Bill Bordy, NJ1H

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

5 years, 6 months

AO-16 telemetry 3 Oct 2010

by Mark L. Hammond

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]

5 years, 12 months

VO-52 beacon heard I think

by Ib Christoffersen

Hi all, I think I had a very small signal from Williams beacon frequency. Pass with AOS here in Copenhagen 1422 UTC - but just 1 degree of elevation in my worst direction. Hope I am right. Should be a good pass over NA in a few minutes. 73 OZ1MY Ib

9 years, 10 months

Call for Papers--2007 ARRL/TAPR Digital Communications Conference

by Ford, Steve, WB8IMY

Technical papers are solicited for presentation at the 26th Annual ARRL and TAPR Digital Communications Conference to be held September 28-30, 2007 in Hartford, Connecticut. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2007. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: maty(a)arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL

9 years, 11 months

Re: EggBeater

by Bill Dzurilla

Steve, I have both a commercial and a homebrew Eggbeater and am disappointed with both, especially in light of its rather high price. Connected to my IC-7000 via an ARR mast-mounted preamp, performance is far less than with an HT and an Arrow. Guess an omni can't cut it, at least not from my QTH. Maybe if I could get it up higher, clear of all roofs, it would do better. I can make contacts at relatively high sat elevations, but can do just as well with a $10 dual band ground plane. My friend has an Eggbeater and the same preamp at a clearer QTH, and he hears substantially better, down to 10 degrees elevation in some directions. Good luck and 73, Bill NZ5N > > Hi Steve, > > > > It is surprising to read that you are not hearing > anything. I have > > repeatedly used a 2m and 70cm Eggbeater for the sats > and have had no > > problem hearing things. No pre-amp. > > > > I was using a short cable (e.g. less than 10 meters). > The rigs I > > used were a FT-736r (deaf) and a FT-847 (so-so). > > > > 73, > > > > Dave

10 years

Dutch Transponder on-baord HAMSAT VO-52 'Turned On'

by Mani VU2WMY

Dear HAMSAT VO-52 users, The commands to 'Turn On' the transponder # 2 (Dutch transponder, made by Williams PE1RAH) on-board HAMSAT VO-52 was successfully sent during 14:00 UT 35 deg ascending Node pass over Bangalore, India. The sent commands were successfully received, acknowledged and confirmed by the telemetry. Subsequently, the transponder # 2 is now 'ON' and Williams CW message beacon was heard again after a gap of approximately 6 years & 4 months. The beacon signal was heard loud and strong here at Bangalore. A detailed Initial reports addressed to: tprangan(a)istrac.org and a copy to wmy(a)isac.gov.in would be greatly appreciated. 73 de Mani, VU2WMY Secretary & Station-In-Charge Upagrah Amateur Radio Club VU2URC ISRO Satellite Centre HAL Airport Road, Bangalore-560 017. Phone:(O)91-80-25082054/2598/2192 Mobile: 91-80-98803 41456 E-mail ID: wmy(a)isac.gov.in vu2wmy_mani(a)yahoo.com isrohams(a)yahoo.com ------------------------------------------------------------------------------ Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. ------------------------------------------------------------------------------

10 years, 1 month

AO-51 wikipedia error

by Andrew Glasbrenner

Hi All, Would someone more familiar with wikipedia please edit the photo currently claimed as AO-51 in that entry? I'm not sure what satellite that is, maybe one of the SaudiSats, but it's not 51. The error was carried over to this month's QST even. http://n4hy.smugmug.com/AMSAT/AO-51-ECHO/02-Preparing-ECHO/042-CIMG1769/108… is a good shot of AO-51 just before launch. Thanks, Drew KO4MA

10 years, 2 months

Lego™ 1U Cubesat,launch confirmed April 2012

by Rob Styles

The next generation Cubesat. http://www.uk.amsat.org/6194 Rob

10 years, 2 months

VE3/UT1FG/MM Toronto Celebrity

by John Papay

Yuri's (VE3/UT1FG/MM) ship was the first foreign ship to dock in Toronto for the 2012 shipping season. The event is celebrated in a ceremony and the captain is crowned with a 150 year old Beaver Hat on the ship. There is a Youtube Video that documents the event: http://www.youtube.com/watch?v=lDmo4ZqdHTc Yuri should be in Thunder Bay on April 1st. He expects to be there for several days. The next destination is Puerto Rico. Today he was very active on the birds and worked 15 stations on a FO-29 pass (recording on my website) in EN77! 73, John K8YSE

10 years, 2 months

em43

by wa4hfn＠comcast.net

Everyone that worked me today in em43 that needs that grid, please send me your log info for that contact and I will QSL My HT showed me at 30.0.00 N 90.0.00 W I think I was also on the grid line of em53 and em43 Thanks Damon WA4HFN wa4hfn(a)comcast.net

10 years, 2 months

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AMSAT-BB March 2012