You can get the VC-H1 cable from Partstore.com
http://www.partstore.com/PartSearch.aspx?PartNumber=E303352-08&x=18&...
On Oct 16, 2008, at 7:56 AM, amsat-bb-request@amsat.org wrote:
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Today's Topics:
- Re: "Flea Power" follow up...Part 2 (John Marranca, Jr)
- Re: sstv mixw settings (Rafael Valdez G.)
- VC-H1 cable (Michael J. Wolthuis)
- Re: VC-H1 cable (Jim Jerzycke)
- Re: ISS SSTV No Joy... (acjohn1@juno.com)
- ARISS Flight Update October 15, 2008 (Janet Bauer)
- ARISS Flight Update October 15, 2008 (Kenneth, N5VHO)
- Re: VC-H1 cable (Simon (HB9DRV))
- Re: sstv mixw settings (Gordon JC Pearce MM3YEQ)
- ISS, 9:10 UTC PASS (Simone T)
- Re: ISS, 9:10 UTC PASS, rubber duck (MM)
- Re: ISS, 9:10 UTC PASS, rubber duck (Gordon J. C. Pearce MM3YEQ)
- ISS: 143.625 downlink 2x (also by D700 ??): (Henk, PA3GUO)
- VC-H1 sold (John Price)
- Re: ISS: 143.625 downlink 2x (also by D700 ??): (Ransom, Kenneth G. (JSC-OC)[BAR])
Message: 1 Date: Wed, 15 Oct 2008 23:26:54 -0400 From: "John Marranca, Jr" KB2HSH@amsat.org Subject: [amsat-bb] Re: "Flea Power" follow up...Part 2 To: amsat-bb@amsat.org Message-ID: 8edcdb130810152026o12d952bfx84467b9ebcfa356d@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1
Good Evening everyone....nice to take a break from politics, etc.
On tonight's AO-51 QRP pass at 2330z pass, I was using my ever- faithful Icom 2AT as an uplink. At 1 watt, I was pretty amazed at how good it sounded in the downlink...and was able to work Drew, KO4MA, Dave, VP9/G1OCN in Bermuda, and Paul, N2BX.
Tomorrow night's pass I'll be trying the low power setting: 100mW.
73 de John KB2HSH
-- _______________________________
John Marranca, Jr PBX Technician/Shop Steward CWA Local 1122 BN Systems, Inc Orchard Park, NY (716)972-2006
Message: 2 Date: Wed, 15 Oct 2008 20:27:22 -0700 From: "Rafael Valdez G." rafavaldez@hotmail.com Subject: [amsat-bb] Re: sstv mixw settings To: Mr Jeffrey L Ross radiooperator@comcast.net, amsat amsat-bb@amsat.org Message-ID: BAY111-W46D439EC1FE74D0C7FFF07DB330@phx.gbl Content-Type: text/plain; charset="iso-8859-1"
hi folks, on mixw, mode settings sstv it says xmit freq 1900 hz and recv,. > freq 1900 hz. my pics are coming in garble, should i change this? If so to > what? any other settting I should have here?
Hi Jeff,
I only set the mode to R36, everything worked fine.... also with 1900mhz... you can see the "half" image I captured at 16:16z using MixW 2.18 in
73's de
Rafael XE2RV DL55lt
Message: 3 Date: Wed, 15 Oct 2008 23:28:41 -0400 From: "Michael J. Wolthuis" wolthui3@msu.edu Subject: [amsat-bb] VC-H1 cable To: amsat-bb@amsat.org Message-ID: 018c01c92f3f$49c8a0a0$dd59e1e0$@edu Content-Type: text/plain; charset="us-ascii"
I have an original VC-H1, never even opened it. I did not buy the cable to hook it to my D7a, 700 or 710 (possible?) when available. Is there anywhere to get the cables now? I want to try and copy ISS SSTV with it.
Mike
Kb8zgl
Message: 4 Date: Wed, 15 Oct 2008 20:42:39 -0700 (PDT) From: Jim Jerzycke kq6ea@pacbell.net Subject: [amsat-bb] Re: VC-H1 cable To: amsat-bb@amsat.org, "Michael J. Wolthuis" wolthui3@msu.edu Message-ID: 279698.47334.qm@web80607.mail.mud.yahoo.com Content-Type: text/plain; charset=us-ascii
The only place I've seen them in the last couple of years has been on eBay, and man, are they EXPEN$IVE! The last ones I saw went for $80. 73, Jim KQ6EA
--- On Wed, 10/15/08, Michael J. Wolthuis wolthui3@msu.edu wrote:
From: Michael J. Wolthuis wolthui3@msu.edu Subject: [amsat-bb] VC-H1 cable To: amsat-bb@amsat.org Date: Wednesday, October 15, 2008, 8:28 PM I have an original VC-H1, never even opened it. I did not buy the cable to hook it to my D7a, 700 or 710 (possible?) when available. Is there anywhere to get the cables now? I want to try and copy ISS SSTV with it.
Mike
Kb8zgl
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Message: 5 Date: Wed, 15 Oct 2008 22:09:38 GMT From: "acjohn1@juno.com" acjohn1@juno.com Subject: [amsat-bb] Re: ISS SSTV No Joy... To: amsat-bb@amsat.org Message-ID: 20081015.180938.18434.1@webmail13.dca.untd.com Content-Type: text/plain; charset=windows-1252
Hi All I left my setup and downloaded 7 photos today. Only two were really clear. The rest had a lot of noise in them. Hopefully I can keep it going like this for the duration.
73 John Rusmiselle KG4VHV
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Message: 6 Date: Wed, 15 Oct 2008 18:14:05 -0700 (PDT) From: Janet Bauer bauerfam5@yahoo.com Subject: [amsat-bb] ARISS Flight Update October 15, 2008 To: amsat-bb@amsat.org Message-ID: 375282.48106.qm@web56307.mail.re3.yahoo.com Content-Type: text/plain; charset=iso-8859-1
All, ? It was quite an exciting day for ARISS yesterday with the Expedition 18 crew docking and the start up of Richard Garriott's ham radio activities. Here are some updates and plans for ARISS during Richard's flight. ? Richard, W5KWQ, fired up the radio and started SSTV operations just a couple of hours after docking. Prior to flight, Richard planned to support a slide show mode using the SpaceCam software and the SSTV interface box at the beginning of his flight. This is what you saw yesterday. Richard downlinked a number of SSTV images using Martin 1, a higher quality but longer transmit SSTV mode. The Russian team, led by Sergey Samburov, RV3DR, had requested testing several high quality image modes during Richard's flight, so don't be surprised if you see Martin 1 or other high resolution SSTV modes during Richard's flight. We asked Richard to move to the default Robot 36 mode for the time being and to space out the images once every 3 minutes to reduce the radio transmit duty cycle. Richard confirmed that he will support this. He also has transitioned to the VC-H1 as this will allow Richard to use the computer to support his Earth ops and still support SSTV. ? We have over 300 image uploads on the Gallery site by hams all around the world! The ARISS team appreciates your volunteer support through all the SSTV images that have been uploaded. A volunteer ARISS team is working 24/7 during Richard's flight to review these images, to understand how the SSTV operations is progressing, and to include some of these images on the Gallery pages. ALL the images you have uploaded have been archived and are being reviewed. Please continue to upload these images as they help the ARISS team analyze and redirect the SSTV operations. You are welome to upload these through the gallery page: ? http://www.amsat.com/ARISS_SSTV/ ? We also have a blog available that provides the latest ARISS information for this expedition. That blog is located at: ? http://www.ariss-sstv.blogspot.com/ ? You can also reach these sites through the ARISS website: ? http:/www.ariss.org ? Some other information: ? SSTV uplink/downlink: Richard is really not supporting SSTV uplinks during his short duration mission. The downlink is on the normal ARISS VHF downlink, 145.80. ? General Voice Contacts: Use the regular general voice frequencies. 145.80 downlink. Uplinks are 144.49 in Region 2 (Americas) and 145.20 for Region 1 (Europe, Africa, Middle East) and Region 3 (Australia, Asia). Richard and Mike Fincke, KE5AIT, have been on the air on voice since shortly after docking yesterday. ? Sleep Period Activity: We have asked the crew to turn packet on during sleep periods. Our intent is to keep SSTV active during their work day. The rationale for this is that we are having some issues with the software based (SpaceCam) SSTV system occasionally keeping the radio keyed down after an image transmission. And we have a limited set of Russian batteries available during Richard's flight for the VC-H1. ? Additional SSTV Information: The computer-based SSTV can also support SSTV picture taking using a USB camera. We don't anticipate Richard using this as his primary SSTV operations for his mission will be with the VC-H1. The USB camera was checked out over the weekend by the Expedition 17 crew, where they took photos of themselves and downlinked these to the ham community.
? You are witnessing and are a part of history: Some of you have asked why Richard is using his callsign for some QSOs and SSTV contacts instead of the ISS station callsigns. There is a long and proud history that is attached to the Garriotts. This includes ham radio in space and their personal callsigns. 25 years ago, Richard's father, Owen Garriott, W5LFL, initiated the first ham radio contacts from space on the STS-9 SAREX mission. Richard, W5KWQ, is following in his father's footsteps, using the ARISS ham radio system extensively on his first flight. And Richard's callsign is actually his grandfather's original callsign. So you can see that this mission touches 3 generations of ham radio and 2 generations of ham radio in space! ? JOTA: Remember that Jamboree on the Air is this Weekend! Scout groups are welcome to call Richard or Mike Fincke over the weekend using the General Voice Contact frequencies (see above). ? School Contacts: School contacts from this day forward are tentatively scheduled as follows: ? Challenger Learning Center Combined Contact #1, telebridge via W6SRJ; on Thu 2008-10-16 16:39 UTC Howard B. Owens Science Center's Challenger Center (Lanham, MD) Challenger Learning Center of Columbia (Columbia, SC) Verizon Challenger Learning Center at MOSI (Tampa, FL) Brownsburg Challenger Learning Center (Brownsburg, IN) Budbrooke Primary School, Warwick, England, direct via GB4OBS Fri 2008-10-17 11:05 UTC Challenger Learning Center Combined Contact #2, telebridge via W6SRJ; on Fri 2008-10-17 15:30 UTC Indianapolis Challenger Learning Center (Indianapolis, IN) Challenger Learning Center at Paducah (Paducah, KY) Challenger Learning Center St. Louis (St. Louis, MO) Austin Liberal Arts and Sciences Academy, Austin, TX, direct via K5LBJ Sun 2008-10-19 13:14 UTC Pinehurst School, Ashland, Oregon, telebridge via W6SRJ Mon 2008-10-20 15:13 UTC National Planetarium, Kuala Lumpur, Malaysia, direct via 9M2RPN Tues 2008-10-21 08:30 UTC ? Enjoy the ARISS operations!! And my thanks to the international ARISS team for their outstanding volunteer support. ? 73, Frank Bauer, KA3HDO AMSAT-NA V.P. for Human Spaceflight Programs ARISS International Chairman
Message: 7 Date: Wed, 15 Oct 2008 18:19:53 -0700 (PDT) From: "Kenneth, N5VHO" ransomk@yahoo.com Subject: [amsat-bb] ARISS Flight Update October 15, 2008 To: amsat-bb@amsat.org Message-ID: 390705.65920.qm@web42101.mail.mud.yahoo.com Content-Type: text/plain; charset=iso-8859-1
Forwarded on behalf of Frank Bauer:
? All, It was quite an exciting day for ARISS yesterday with the Expedition 18 crew docking and the start up of Richard Garriott's ham radio activities.? Here are some updates and plans for ARISS during Richard's flight. ? Richard, W5KWQ, fired up the radio and started SSTV operations just a couple of hours after docking.? Richard planned to support a slide show mode using the SpaceCam software and the SSTV interface box at the beginning of his flight, which is what you saw yesterday.? A number of the images were sent down using Martin 1, a higher quality but longer transmit SSTV mode.? The Russian team, led by Sergey Samburov, RV3DR, had requested testing several high quality image modes during Richard's flight, so don't be surprised if you see Martin 1 or other high resolution SSTV modes during Richard's flight.? We have asked Richard to move to the default Robot 36 mode for the time being and to space out the images once every 3 minutes to reduce the radio transmit duty cycle.? Richard confirmed that he will support this.? He also has transitioned to the VC-H1 as this will allow Richard to use the computer to support his Earth ops and still support SSTV.? ? We have had a number of image uploads on the Gallery site by hams all around the world.? The ARISS team appreciates your volunteer support through all the SSTV images that have been uploaded.? A volunteer ARISS team is working 24/7 during Richard's flight to review these images, to understand how the SSTV operations is progressing, and to include some of these images on the Gallery pages.? ALL the images you have uploaded have been archived and are being reviewed.? Please continue to upload these images as they help the ARISS team analyze and redirect the SSTV operations.? You are welome to upload these through the gallery page: http://www.amsat.com/ARISS_SSTV/ ? We also have a blog available that provides the latest ARISS information for this expedition.? That blog is located at: http://www.ariss-sstv.blogspot.com/ ? You can also reach these sites through the ARISS website: http:/www.ariss.org ? Some other information: SSTV uplink/downlink:? Richard is really not supporting SSTV uplinks during his short duration mission.? The downlink is on the normal ARISS VHF downlink, 145.80. ? General Voice Contacts:? Use the regular general voice frequencies.? 145.80 downlink.? Uplinks are 144.49 in Region 2 (Americas) and 145.20 for Region 1 (Europe, Africa, Middle East) and Region 3 (Australia, Asia).? Richard and Mike Fincke, KE5AIT, have been on the air on voice since shortly after docking yesterday. ? Sleep Period Activity:? We have asked the crew to turn packet on during sleep periods.? Our intent is to keep SSTV active during their work day.? The rationale for this is that we are having some issues with the software based (SpaceCam) SSTV system occasionally keeping the radio keyed down after an image transmission.? And we have a limited set of Russian batteries available during Richard's flight for the VC-H1.? ? You are witnessing and are a part of history:? Some of you have asked why Richard is using his callsign for some QSOs and SSTV contacts instead of the ISS station callsigns.? There is a long and proud history that is attached to the Garriotts.? This includes ham radio in space and their personal callsigns.? 25 years ago, Richard's father, Owen Garriott, W5LFL, initiated the first ham radio contacts from space on the STS-9 SAREX mission.? Richard, W5KWQ, is following in his father's footsteps, using the ARISS ham radio system extensively on his first flight.? And Richard's callsign is actually his grandfather's original callsign.? So you can see that this mission touches 3 generations of ham radio and 2 generations of ham radio in space! ? School Contacts:? School contacts from this day forward are tentatively scheduled as follows: Challenger Learning Center Combined Contact #1, telebridge via W6SRJ; on Thu 2008-10-16 16:39 UTC Howard B. Owens Science Center's Challenger Center (Lanham, MD) Challenger Learning Center of Columbia (Columbia, SC) Verizon Challenger Learning Center at MOSI (Tampa, FL) Brownsburg Challenger Learning Center (Brownsburg, IN) Budbrooke Primary School, Warwick, England, direct via GB4OBS Fri 2008-10-17 11:05 UTC Challenger Learning Center Combined Contact #2, telebridge via W6SRJ; on Fri 2008-10-17 15:30 UTC Indianapolis Challenger Learning Center (Indianapolis, IN) Challenger Learning Center at Paducah (Paducah, KY) Challenger Learning Center St. Louis (St. Louis, MO) Austin Liberal Arts and Sciences Academy, Austin, TX, direct via K5LBJ Sun 2008-10-19 13:14 UTC Pinehurst School, Ashland, Oregon, telebridge via W6SRJ Mon 2008-10-20 15:13 UTC National Planetarium, Kuala Lumpur, Malaysia, direct via 9M2RPN Tues 2008-10-21 08:30 UTC ? Enjoy the ARISS operations.? And my thanks to the international ARISS team for their outstanding volunteer support. ? 73,? Frank Bauer, KA3HDO AMSAT-NA V.P. for Human Spaceflight Programs ARISS International Chairman
Message: 8 Date: Thu, 16 Oct 2008 09:12:51 +0200 From: "Simon (HB9DRV)" simon@hb9drv.ch Subject: [amsat-bb] Re: VC-H1 cable To: "Michael J. Wolthuis" wolthui3@msu.edu, amsat-bb@amsat.org Message-ID: A238BDC0CC6A4D8299FF3828451A6C71@doubletrouble Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original
Mike,
If you don't have a software solution May I suggest MM-SSTV (Windows app)? It is free and very simple to use, all you need is a soundcard interface between the radio and your PC.
Simon Brown, HB9DRV www.ham-radio-deluxe.com
----- Original Message ----- From: "Michael J. Wolthuis" wolthui3@msu.edu
I have an original VC-H1, never even opened it. I did not buy the cable to hook it to my D7a, 700 or 710 (possible?) when available. Is there anywhere to get the cables now? I want to try and copy ISS SSTV with it.
Message: 9 Date: Thu, 16 Oct 2008 09:26:35 +0100 From: Gordon JC Pearce MM3YEQ gordonjcp@gjcp.net Subject: [amsat-bb] Re: sstv mixw settings To: amsat amsat-bb@amsat.org Message-ID: 48F6FABB.2000501@gjcp.net Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Rafael Valdez G. wrote:
hi folks, on mixw, mode settings sstv it says xmit freq 1900 hz and recv,. > freq 1900 hz. my pics are coming in garble, should i change this? If so to > what? any other settting I should have here?
Hi Jeff,
I only set the mode to R36, everything worked fine.... also with 1900mhz... you can see the "half" image I captured at 16:16z using MixW 2.18 in
73's de
Rafael XE2RV DL55lt
I record the pass and then set about decoding it later. The first decode of the ISS image I captured was terribly skewed, but I was able to adjust qsstv on subsequent attempts to get it bob on.
Gordon
Message: 10 Date: Thu, 16 Oct 2008 11:23:36 +0200 From: "Simone T" terrando@gmail.com Subject: [amsat-bb] ISS, 9:10 UTC PASS To: "Amsat-Bb@Amsat. Org" amsat-bb@amsat.org Message-ID: b6e4241a0810160223x17b7e9d2ycc34d7f238586bbc@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1
Hi Folks,
tried to catch ISS with my TH-D7 + Rubber Duck on Office's terrace in JN33MO. The pass was very good, most of the time over 30deg. Just heard voice traffic (one word fragment, guess wa Garriot ending a contact) at AOS, then nothing.
Anyone was succesful with that equipment?
Best 73s
Simone IW1FYV/F
Message: 11 Date: Thu, 16 Oct 2008 03:16:34 -0700 (PDT) From: MM ka1rrw@yahoo.com Subject: [amsat-bb] Re: ISS, 9:10 UTC PASS, rubber duck To: "Amsat-Bb@Amsat. Org" amsat-bb@amsat.org, Simone T terrando@gmail.com Message-ID: 454559.2702.qm@web56405.mail.re3.yahoo.com Content-Type: text/plain; charset=us-ascii
The gain of a stock rubber duck antenna is usually minus 12 to minus 9 dBd gain. The average car 1/2 wave dipole is Zero dBd gain.
More gain, better results.
--- On Thu, 10/16/08, Simone T terrando@gmail.com wrote:
From: Simone T terrando@gmail.com Subject: [amsat-bb] ISS, 9:10 UTC PASS To: "Amsat-Bb@Amsat. Org" amsat-bb@amsat.org Date: Thursday, October 16, 2008, 5:23 AM Hi Folks,
tried to catch ISS with my TH-D7 + Rubber Duck on Office's terrace in JN33MO. The pass was very good, most of the time over 30deg. Just heard voice traffic (one word fragment, guess wa Garriot ending a contact) at AOS, then nothing.
Anyone was succesful with that equipment?
Best 73s
Simone IW1FYV/F _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Message: 12 Date: Thu, 16 Oct 2008 11:26:33 +0100 From: "Gordon J. C. Pearce MM3YEQ" gordonjcp@gjcp.net Subject: [amsat-bb] Re: ISS, 9:10 UTC PASS, rubber duck To: ka1rrw@yahoo.com Cc: "Amsat-Bb@Amsat. Org" amsat-bb@amsat.org Message-ID: 1224152793.6867.5.camel@kusanagi Content-Type: text/plain
On Thu, 2008-10-16 at 03:16 -0700, MM wrote:
The gain of a stock rubber duck antenna is usually minus 12 to minus 9 dBd gain. The average car 1/2 wave dipole is Zero dBd gain.
More gain, better results.
I had a thumping signal yesterday with my homebrew J-pole. Nothing more. I thought I might have used the Yagi, but that would probably have only been worthwhile for catching the very ends of the pass. As it was, with my antenna about 12' off the ground in a suburban back garden with trees and buildings around, I was getting full quieting at 15 degrees above the horizon!
http://www.gjcp.net/~gordonjcp/dualbandjpole.pdf
Here's a copy of WB6IQN's dual-band design (mirrored because I don't want to cane the author's bandwidth). I built the single-band version, and it tuned up perfectly at 144.9MHz when built as described - I've now built three, one on a pole in my back garden, one that I gave to a friend to listen to the local repeater with (along with an old Icom IC-22A - must ask him if it's got a 145.8 crystal!) and one to stuff into my laptop bag and take to work. You'd actually have to try to get it wrong.
HTH, Gordon
Message: 13 Date: Thu, 16 Oct 2008 13:02:02 +0200 (CEST) From: "Henk, PA3GUO" hamoen@iae.nl Subject: [amsat-bb] ISS: 143.625 downlink 2x (also by D700 ??): To: amsat-bb@amsat.org Message-ID: 1203.212.61.85.20.1224154922.squirrel@webmail.iae.nl Content-Type: text/plain; charset=iso-8859-1
To whom this may concern (Kenneth N5VHO ?):
Thursday 10:45utc pass over Europe:
With the very latest keps I monitored both 145.800 and 143.625. Late in the pass, a carrier appeared on 143.625. Also I heared now and then voice from another source (distorted) through that. Initially I believed this was a local station transmitting on 143.625.
But: switching between HOR/VER/LHCP/RHCP gave exactly the same ratio of that carrier versus the voice/other signal... they must have identical polarization: too much coincidence to me.
Then: the carrier faded down fast in the last 2 degrees elevation, like the ISS 145.800 also always does: the carrier must have come from ISS: I guess the D700 also has 143.625 programmed ?
Conclusion: I suspect that maybe the Kenwood D700 onboard was transmitting on 143.625 and at the same time the astronauts tried via the other radio to reach Moscow (like they do every day). Most likely Moscow also could not hear the 2nd radio, as the carrier was strongest.
Henk, PA3GUO The Netherlands
Message: 14 Date: Thu, 16 Oct 2008 07:46:23 -0400 From: "John Price" n4qwf1@gmail.com Subject: [amsat-bb] VC-H1 sold To: "amsat-bb@amsat.org" amsat-bb@amsat.org Message-ID: 8d1b8e80810160446y40be11d5v820d15d7c3496de2@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1
Thanks for the many responce. Best 73's << john
-- N4QWF Amateur Radio Operator AO-7,AO-27,SO-50,AO-51,VO-52,ISS Internet N4QWF@AMSAT.ORG Echolink nodes #110903 -L #388463 Formerly KC4AHW VK3FEZ Amsat Member #27845 DXCC #33,478 VUCC SAT #135 WAS SAT #296 51 on AO-51 #13 LON -79.256 LAT 37.459 Grid FM07il
From the Foothills of the Blueridge
*Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming - "WOW, What a ride!"
Message: 15 Date: Thu, 16 Oct 2008 06:56:34 -0500 From: "Ransom, Kenneth G. (JSC-OC)[BAR]" kenneth.g.ransom@nasa.gov Subject: [amsat-bb] Re: ISS: 143.625 downlink 2x (also by D700 ??): To: "Henk, PA3GUO" hamoen@iae.nl, amsat-bb@amsat.org Message-ID: A2862DA1C49F4145AF6C2A4528294035021F3CA0@NDJSEVS21A.ndc.nasa.gov Content-Type: text/plain; charset="US-ASCII"
Sounds like the Russian VHF comm. system which has a multi polarity antenna array. They may have locked the PTT in anticipation of a ground pass over Moscow and you were hearing background noise from within the ISS.
Kenneth - N5VHO
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Henk, PA3GUO Sent: Thursday, October 16, 2008 6:02 AM To: amsat-bb@amsat.org Subject: [amsat-bb] ISS: 143.625 downlink 2x (also by D700 ??):
To whom this may concern (Kenneth N5VHO ?):
Thursday 10:45utc pass over Europe:
With the very latest keps I monitored both 145.800 and 143.625. Late in the pass, a carrier appeared on 143.625. Also I heared now and then voice from another source (distorted) through that. Initially I believed this was a local station transmitting on 143.625.
But: switching between HOR/VER/LHCP/RHCP gave exactly the same ratio of that carrier versus the voice/other signal... they must have identical polarization: too much coincidence to me.
Then: the carrier faded down fast in the last 2 degrees elevation, like the ISS 145.800 also always does: the carrier must have come from ISS: I guess the D700 also has 143.625 programmed ?
Conclusion: I suspect that maybe the Kenwood D700 onboard was transmitting on 143.625 and at the same time the astronauts tried via the other radio to reach Moscow (like they do every day). Most likely Moscow also could not hear the 2nd radio, as the carrier was strongest.
Henk, PA3GUO The Netherlands
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Sent via amsat-bb@amsat.org. Opinions expressed are those of the author. Not an AMSAT member? Join now to support the amateur satellite program! http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 3, Issue 526
Lou McFadin W5DID ARISS US Hardware manager
participants (1)
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Louis McFadin