March 2007 - AMSAT-BB - mailman.amsat.org

Call for Papers--2007 ARRL/TAPR Digital Communications Conference
by Ford, Steve, WB8IMY 16 Jul '12

16 Jul '12

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

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DSP Speaker
by n3wwn＠futuretek.cx 12 Apr '07

12 Apr '07

Hi! I recall reading about a speaker that you can plug into any radio so you can keep the squelch open all the time and a DSP will only let audio with signals through. It was intended to be used to listen for beacons on satellites as well as listen for band openings without driving the XYL crazy with static being blasted through the house. Does anyone else recall this speaker (or inline module)? I've searched and found DSPs that will attenuate white noise, but I haven't seen any that turn off the speaker completely in the presence of white noise alone. 73 de Rich N3WWN

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TV antenna rotators
by Tim Tapio 08 Apr '07

08 Apr '07

Do any of them offer full 360 degree rotation. I picked up a channel master, it only travels 180.. 73 de Tim, K4SHF

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Dual Hop
by Sil - ZL2CIA 03 Apr '07

03 Apr '07

Hi, I few days ago now, ANDE-1 and RAFT were simultaneously visible from my QTH, and everyone else's too, I imagine. Since both satellites Tx and Rx on 145.825 MHz, I wondered whether a dual hop is possible. However, it seems that the satellites are configured to prevent this. I wonder if there are any plans to try a dual hop - perhaps later when the satellites are near the end of their lives. I presume too, that when they are in sight of each other, RAFT would been keeping ANDE awake. Is this true? Sil - ZL2CIA

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How we do to reach them?
by Luc Leblanc 30 Mar '07

30 Mar '07

To all senior Ham (should i wrote to all Ham's? There is a huge amateur gettogether coming soon in your place? How can we be innovative enough making this young folk interested in Ham Radio? http://www.youtube.com/watch?v=CQ3GfA-V2zk "-" "It is not the class of license the amateur holds, but the class of the amateur that holds the license." Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe WAC BASIC CW PHONE SAT www.//p3e-satellite.org/index.pl?lang=en_EN

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Re: AO-51 Field Day Mode L/U and V/U dual repeaters
by Bruce 30 Mar '07

30 Mar '07

one per transponder on a single channel fm satellite. as two transponders are active, you can make one contact on v/u and one on l/u. 73...bruce Andrew Glasbrenner wrote: > I would say one per satellite, but I think that's Bruce's call.... > > 73, Drew > > ----- Original Message ----- From: "Reicher, James" <JReicher(a)hrblock.com> > To: <glasbrenner(a)mindspring.com> > Sent: Friday, March 30, 2007 10:15 AM > Subject: RE:[amsat-bb] AO-51 Field Day Mode L/U and V/U dual repeaters > > > Drew, > Would the "one QSO per satellite" rule apply for each channel of AO51? > Or is it just one QSO for the bird, period? > > 73 de N8AU, Jim in Raymore, MO > > Light travels faster than sound... This is why some people appear > bright until you hear them speak > > Date: Thu, 29 Mar 2007 21:03:32 -0400 > From: "Andrew Glasbrenner" <glasbrenner(a)mindspring.com> > Subject: [amsat-bb] AO-51 Field Day Mode L/U and V/U dual repeaters > To: <amsat-bb(a)AMSAT.Org>, "ans-editor" <ans-editor(a)AMSAT.Org> > Cc: wb8imy(a)arrl.org, eu-amsat(a)yahoogroups.com > Message-ID: <00d801c77267$3cd357f0$6501a8c0@KO4MA> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=original > > For Field Day this year AO-51 will be in a dual repeater mode, with the > following frequencies: > > L/U repeater > Uplink 1268.700 FM, no PL tone > Downlink 435.150 FM > > V/U repeater > Uplink 145.920 FM, no PL tone > Downlink 435.300 FM > > As a reminder, both the AMSAT and now ARRL Field Day rules state only > one completed QSO per FM repeater satellite. Please adhere to this rule so > that others may have an opportunity to make a QSO. Also, all stations are > asked to please only transmit when they can hear the satellite, and > please use > > full duplex (with headphones) as a courtesy to the other users. Those > stations planning on using circularly polarized antennas please remember > the 435.150 downlink is left hand circular polarization (LHCP), and the > 435.300 downlink is right hand circular polarization (RHCP). Stay tuned > to AMSAT > ANS bulletins or the AO-51 News page > http://www.amsat.org/amsat-new/echo/ControlTeam.php for practice > sessions of this mode to be scheduled several times between now and > Field Day. > > 73 and Good Luck! > Drew KO4MA > AMSAT VP Operations > > -- Bruce Paige, KK5DO AMSAT Director Contests and Awards ARRL Awards Manager (WAS, 5BWAS, VUCC), VE Houston AMSAT Net - Wed 0100z on W0KIE Intelsat Americas, T1, 6.2/6.8Mhz Also streaming MP3 at http://www.amsatnet.com Latest satellite news on the ARRL Audio News http://www.arrl.org

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Re: Columbus mode L/U antennas (L/S ???)
by Trevor 30 Mar '07

30 Mar '07

Hi Howard, Shouldn't that read L/S antennas ? 73 Trevor M5AKA ___________________________________________________________ What kind of emailer are you? Find out today - get a free analysis of your email personality. Take the quiz at the Yahoo! Mail Championship. http://uk.rd.yahoo.com/evt=44106/*http://mail.yahoo.net/uk

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AO-51 Field Day Mode L/U and V/U dual repeaters
by Andrew Glasbrenner 29 Mar '07

29 Mar '07

For Field Day this year AO-51 will be in a dual repeater mode, with the following frequencies: L/U repeater Uplink 1268.700 FM, no PL tone Downlink 435.150 FM V/U repeater Uplink 145.920 FM, no PL tone Downlink 435.300 FM As a reminder, both the AMSAT and now ARRL Field Day rules state only one completed QSO per FM repeater satellite. Please adhere to this rule so that others may have an opportunity to make a QSO. Also, all stations are asked to please only transmit when they can hear the satellite, and please use full duplex (with headphones) as a courtesy to the other users. Those stations planning on using circularly polarized antennas please remember the 435.150 downlink is left hand circular polarization (LHCP), and the 435.300 downlink is right hand circular polarization (RHCP). Stay tuned to AMSAT ANS bulletins or the AO-51 News page http://www.amsat.org/amsat-new/echo/ControlTeam.php for practice sessions of this mode to be scheduled several times between now and Field Day. 73 and Good Luck! Drew KO4MA AMSAT VP Operations

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Office Closed
by MARTHA SARAGOVITZ 29 Mar '07

29 Mar '07

The AMSAT office will be closed on Monday, April 2 and Tuesday, April 3. I will be back in the office on Wednesday at 10:00 AM ET. 73- Martha - AMSAT Manager

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TNC settings for Kenwood TM-D700
by Jordan Woolley 29 Mar '07

29 Mar '07

Hi all, Was just wondering if there is anyone out there with any experience setting up a D700 for Packet operation. I do not seem to be able to get my terminal program to speak to the TNC. I can't even get a cmd prompt or any semblance of a connection. It seems to be physically connected fine but still no luck. I have set the baud rate for the port to match the TNC (9600) but am not having any luck. I am just using HyperTerminal. Any ideas? Thanks Jordan VK2HCA

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