Please excuse the newbie. I have been receiving signals on SSB, CW, Packet, and FM via just listening for a while now. I am newly back into the satellites as I used to work the high elliptical orbit birds years ago. Let my license lapse and just got it back and upgraded. Now getting the satellite bug again and have really tried researching on the net but am a bit frustrated by the paucity of az-el rotors available. It seems that there are primarily the Yeasu G-5500 type at $700 to $800 or more or make your own and really no in-between. I am looking to have a permanent installation that could track both az and el and preferably be controlled by SatPC32. I am thinking of starting with a small single antenna with both 2m and 70cm on it (i.e. Arrow or other) which would present very low windage. When I initially got re-interested I was imaging a cheap solution with TV rotors but I don’t see any folks doing this and I would prefer not to have to set my antenna solution up every time I want to work the satellites. Am I missing something or could someone point me to an article or reference that I am not aware of? I really appreciate all of the collective experience in this group and thanks for your time! I am using a Kenwood TS 790A without the 1.2 Ghz installed. Best, Fred Castello, KF4FC
Hi Fred, If your working the current crop of LEO sats, then you don't need an AZ/EL setup. Just AZ will do with the Arrow antenna set to about 20 degrees elevation. I control my HD-73 with the Easy Rotor Controller (ERC) using SATPC-32. Very simple and works well with the Arrow. Get you started without too much invested. Kevin/W3DAD
On Sun, Jan 24, 2016 at 11:13 PM, Fred Castello [email protected] wrote:
Please excuse the newbie. I have been receiving signals on SSB, CW, Packet, and FM via just listening for a while now. I am newly back into the satellites as I used to work the high elliptical orbit birds years ago. Let my license lapse and just got it back and upgraded. Now getting the satellite bug again and have really tried researching on the net but am a bit frustrated by the paucity of az-el rotors available. It seems that there are primarily the Yeasu G-5500 type at $700 to $800 or more or make your own and really no in-between. I am looking to have a permanent installation that could track both az and el and preferably be controlled by SatPC32. I am thinking of starting with a small single antenna with both 2m and 70cm on it (i.e. Arrow or other) which would present very low windage. When I initially got re-interested I was imaging a cheap solution with TV rotors but I don’t see any folks doing this and I would prefer not to have to set my antenna solution up every time I want to work the satellites. Am I missing something or could someone point me to an article or reference that I am not aware of? I really appreciate all of the collective experience in this group and thanks for your time! I am using a Kenwood TS 790A without the 1.2 Ghz installed. Best, Fred Castello, KF4FC _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Fred,
In addition to Kevin’s idea, you might want to consider some home-brew “eggbeaters.” When I first started on the LEO’s, they worked fine to get into the birds, including the ISS. Won’t outperform a beam many times, but they are efficient for the cost.
Greg N3MVF
On Jan 25, 2016, at 5:06 AM, A. Kevin Arber [email protected] wrote:
Hi Fred, If you're working the current crop of LEO sats, then you don't need an AZ/EL setup. Just AZ will do with the Arrow antenna set to about 20 degrees elevation. I control my HD-73 with the Easy Rotor Controller (ERC) using SATPC-32. Very simple and works well with the Arrow. Get you started without too much invested. Kevin/W3DAD
On Sun, Jan 24, 2016 at 11:13 PM, Fred Castello [email protected] wrote:
Please excuse the newbie. I have been receiving signals on SSB, CW, Packet, and FM via just listening for a while now. I am newly back into the satellites as I used to work the high elliptical orbit birds years ago. Let my license lapse and just got it back and upgraded. Now getting the satellite bug again and have really tried researching on the net but am a bit frustrated by the paucity of az-el rotors available. It seems that there are primarily the Yeasu G-5500 type at $700 to $800 or more or make your own and really no in-between. I am looking to have a permanent installation that could track both az and el and preferably be controlled by SatPC32. I am thinking of starting with a small single antenna with both 2m and 70cm on it (i.e. Arrow or other) which would present very low windage. When I initially got re-interested I was imaging a cheap solution with TV rotors but I don’t see any folks doing this and I would prefer not to have to set my antenna solution up every time I want to work the satellites. Am I missing something or could someone point me to an article or reference that I am not aware of? I really appreciate all of the collective experience in this group and thanks for your time! I am using a Kenwood TS 790A without the 1.2 Ghz installed. Best, Fred Castello, KF4FC _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Agree about the "Eggbeater" style. When I first returned to the sats I homebrewed a couple and they worked fine. But even better is a Moxin style which provides gain and circular polarization. See Larry Cebik"s article in August 2001 QST. I built these and they worked great for the LEOs. Great for portable too, as are omnidirectional. Kevin/W3DAD
On Mon, Jan 25, 2016 at 6:38 AM, Greg [email protected] wrote:
Fred,
In addition to Kevin’s idea, you might want to consider some home-brew “eggbeaters.” When I first started on the LEO’s, they worked fine to get into the birds, including the ISS. Won’t outperform a beam many times, but they are efficient for the cost.
Greg N3MVF
On Jan 25, 2016, at 5:06 AM, A. Kevin Arber [email protected] wrote:
Hi Fred, If you're working the current crop of LEO sats, then you don't need an AZ/EL setup. Just AZ will do with the Arrow antenna set to about 20 degrees elevation. I control my HD-73 with the Easy Rotor Controller (ERC) using SATPC-32. Very simple and works well with the Arrow. Get you started without too much invested. Kevin/W3DAD
On Sun, Jan 24, 2016 at 11:13 PM, Fred Castello [email protected] wrote:
Please excuse the newbie. I have been receiving signals on SSB, CW, Packet, and FM via just listening for a while now. I am newly back into the satellites as I used to work the high elliptical orbit birds years ago. Let my license lapse and just got it back and upgraded. Now
getting
the satellite bug again and have really tried researching on the net but
am
a bit frustrated by the paucity of az-el rotors available. It seems that there are primarily the Yeasu G-5500 type at $700 to $800 or more or make your own and really no in-between. I am looking to have a permanent installation that could track both az and el and preferably be controlled by SatPC32. I am thinking of starting with a small single antenna with both 2m and 70cm on it (i.e. Arrow or other) which would present very low windage. When I initially got re-interested I was imaging a cheap
solution
with TV rotors but I don’t see any folks doing this and I would prefer
not
to have to set my antenna solution up every time I want to work the satellites. Am I missing something or could someone point me to an
article
or reference that I am not aware of? I really appreciate all of the collective experience in this group and thanks for your time! I am
using a
Kenwood TS 790A without the 1.2 Ghz installed. Best, Fred Castello, KF4FC _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership.
Opinions
expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite
program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
I was wondering about the Lindenblad antennas. I live in an area where winter conditions aren't always conducive to going outside and working the Sats and eventually want to have an Az/El system but until the time and money are available I was considering building this style of antenna. Does anybody have experience and/or recommendations?
Thanks Jerry W4JWC
-----Original Message----- From: AMSAT-BB [mailto:[email protected]] On Behalf Of A. Kevin Arber Sent: Monday, January 25, 2016 9:09 AM To: Greg [email protected] Cc: AMSAT bbs [email protected]; Fred Castello [email protected] Subject: Re: [amsat-bb] Az-El Rotors
Agree about the "Eggbeater" style. When I first returned to the sats I homebrewed a couple and they worked fine. But even better is a Moxin style which provides gain and circular polarization. See Larry Cebik"s article in August 2001 QST. I built these and they worked great for the LEOs. Great for portable too, as are omnidirectional. Kevin/W3DAD
On Mon, Jan 25, 2016 at 6:38 AM, Greg [email protected] wrote:
Fred,
In addition to Kevin’s idea, you might want to consider some home-brew “eggbeaters.” When I first started on the LEO’s, they worked fine to get into the birds, including the ISS. Won’t outperform a beam many times, but they are efficient for the cost.
Greg N3MVF
On Jan 25, 2016, at 5:06 AM, A. Kevin Arber [email protected] wrote:
Hi Fred, If you're working the current crop of LEO sats, then you don't need an AZ/EL setup. Just AZ will do with the Arrow antenna set to about 20 degrees elevation. I control my HD-73 with the Easy Rotor Controller (ERC) using SATPC-32. Very simple and works well with the Arrow. Get you started without too much invested. Kevin/W3DAD
On Sun, Jan 24, 2016 at 11:13 PM, Fred Castello [email protected] wrote:
Please excuse the newbie. I have been receiving signals on SSB, CW, Packet, and FM via just listening for a while now. I am newly back into the satellites as I used to work the high elliptical orbit birds years ago. Let my license lapse and just got it back and upgraded. Now
getting
the satellite bug again and have really tried researching on the net but
am
a bit frustrated by the paucity of az-el rotors available. It seems that there are primarily the Yeasu G-5500 type at $700 to $800 or more or make your own and really no in-between. I am looking to have a permanent installation that could track both az and el and preferably be controlled by SatPC32. I am thinking of starting with a small single antenna with both 2m and 70cm on it (i.e. Arrow or other) which would present very low windage. When I initially got re-interested I was imaging a cheap
solution
with TV rotors but I don’t see any folks doing this and I would prefer
not
to have to set my antenna solution up every time I want to work the satellites. Am I missing something or could someone point me to an
article
or reference that I am not aware of? I really appreciate all of the collective experience in this group and thanks for your time! I am
using a
Kenwood TS 790A without the 1.2 Ghz installed. Best, Fred Castello, KF4FC _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership.
Opinions
expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite
program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
On 1/25/16 9:08 AM, A. Kevin Arber wrote:
Agree about the "Eggbeater" style. When I first returned to the sats I homebrewed a couple and they worked fine. But even better is a Moxin style which provides gain and circular polarization. See Larry Cebik"s article in August 2001 QST. I built these and they worked great for the LEOs. Great for portable too, as are omnidirectional. Kevin/W3DAD
I prefer them over the Eggbeater/Texas Potato Mashers, and the Moxons are a Field Day favorite for the linear transponder birds. Easy to set up, and with a small field day operation, I like simple. Have been able to work someone on pretty much every pass.
Never tried them for the FM birds or ISS contacts, I don't think they'll do well there at all during Field Day. Maybe normal operation, they would be "just okay" to "meh, need something better someday".
Image of the ones I built for field day: http://imgur.com/KAkV44Q
The design PDF is at http://www.oocities.org/w9bci/VHFUHFSatelite.pdf.
The next iteration of the 400MHz antenna will use an appropriately sized rod rather than 12g copper wire.
ka8ncr
Jeff, I made mine using brass tubing from the hobby shop. Easy to solder, light weight. You make a small corner joint out of the next size down tubing
73, Ted K7TRK
-----Original Message----- From: AMSAT-BB [mailto:[email protected]] On Behalf Of Jeff Breitner Sent: Monday, January 25, 2016 3:44 PM To: [email protected] Subject: Re: [amsat-bb] Az-El Rotors
On 1/25/16 9:08 AM, A. Kevin Arber wrote:
Agree about the "Eggbeater" style. When I first returned to the sats I homebrewed a couple and they worked fine. But even better is a Moxin style which provides gain and circular polarization. See Larry Cebik"s article in August 2001 QST. I built these and they worked great
for the LEOs.
Great for portable too, as are omnidirectional. Kevin/W3DAD
I prefer them over the Eggbeater/Texas Potato Mashers, and the Moxons are a Field Day favorite for the linear transponder birds. Easy to set up, and with a small field day operation, I like simple. Have been able to work someone on pretty much every pass.
Never tried them for the FM birds or ISS contacts, I don't think they'll do well there at all during Field Day. Maybe normal operation, they would be "just okay" to "meh, need something better someday".
Image of the ones I built for field day: http://imgur.com/KAkV44Q
The design PDF is at http://www.oocities.org/w9bci/VHFUHFSatelite.pdf.
The next iteration of the 400MHz antenna will use an appropriately sized rod rather than 12g copper wire.
ka8ncr _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Hi Fred,
... starting with a small single antenna with both 2m and 70cm on it (i.e. Arrow or other) ...
I've found that an azimuth-only rotor with a fixed elevation of 20° or so works well enough for most of what I do with LEO satellites. I got my rotor from ebay for $20. It is a primitive setup - manual tracking. Much of the time I prefer using an Arrow antenna.
If you are looking for rotor projects there have been two designs published over the past year or so in the AMSAT Journal. Here is some information you can use to find out more about these:
The AMSAT store has the printed circuit board for WA8SME's WRAPS inexpensive, portable az-el rotor system. See http://store.amsat.org and look for the "WRAPS Tracker Circuit Board". There is also a link to the article by Mark, WA8SME.
Bob, KI4SBL, wrote an article about his homebrew az-el rotor system, "CNCTRK – A LinuxCNC Based Satellite Tracking System", for the AMSAT Journal. Bob has details of this project and the parts he sells along with a PDF of the article posted on his web site: http://ki4sbl.dodropin.org/CNCTRK/
-- 73 de JoAnne K9JKM [email protected]
Satnogs has a pretty good AZ/EL rotator design - https://satnogs.org/documentation/hardware/
I'm not sure how well it holds up in a permanent installation. I started building it but ended up making my own design.
Steve KD8QWT
On Mon, Jan 25, 2016 at 8:57 AM, JoAnne Maenpaa [email protected] wrote:
Hi Fred,
... starting with a small single antenna with both 2m and 70cm on it (i.e. Arrow or other) ...
I've found that an azimuth-only rotor with a fixed elevation of 20° or so works well enough for most of what I do with LEO satellites. I got my rotor from ebay for $20. It is a primitive setup - manual tracking. Much of the time I prefer using an Arrow antenna.
If you are looking for rotor projects there have been two designs published over the past year or so in the AMSAT Journal. Here is some information you can use to find out more about these:
The AMSAT store has the printed circuit board for WA8SME's WRAPS inexpensive, portable az-el rotor system. See http://store.amsat.org and look for the "WRAPS Tracker Circuit Board". There is also a link to the article by Mark, WA8SME.
Bob, KI4SBL, wrote an article about his homebrew az-el rotor system, "CNCTRK – A LinuxCNC Based Satellite Tracking System", for the AMSAT Journal. Bob has details of this project and the parts he sells along with a PDF of the article posted on his web site: http://ki4sbl.dodropin.org/CNCTRK/
-- 73 de JoAnne K9JKM [email protected]
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Check out K3NG's rotator. Direct replacement for the LVB tracker, or build the control box around it, as well. So far I've built 5. One is a G-5400 portable with GPS and the other (s) drive the G-5500. One version took 2.5 hours. Did take a shortcut there. Cut the tail off the LVB tracker. No cable to build! Two sit on the bench. Plug either one into a control box and satpc32, then track the birds!!
Building the actual rotators is a pain. Very doable, though. Have one in the corner. Bought Geckodrives because all others are fodder for the dumpster. Anything real needs (moderately) big gear reduction drives. Alibaba is yor friend.
LVB tracker replacement=35$ or less + enclosure. See Youtube.
On Mon, Jan 25, 2016 at 9:12 AM, Steven Kalmar [email protected] wrote:
Satnogs has a pretty good AZ/EL rotator design - https://satnogs.org/documentation/hardware/
I'm not sure how well it holds up in a permanent installation. I started building it but ended up making my own design.
Steve KD8QWT
On Mon, Jan 25, 2016 at 8:57 AM, JoAnne Maenpaa [email protected] wrote:
Hi Fred,
... starting with a small single antenna with both 2m and 70cm on it (i.e. Arrow or other) ...
I've found that an azimuth-only rotor with a fixed elevation of 20° or so works well enough for most of what I do with LEO satellites. I got my rotor from ebay for $20. It is a primitive setup - manual tracking. Much of the time I prefer using an Arrow antenna.
If you are looking for rotor projects there have been two designs published over the past year or so in the AMSAT Journal. Here is some information you can use to find out more about these:
The AMSAT store has the printed circuit board for WA8SME's WRAPS inexpensive, portable az-el rotor system. See http://store.amsat.org and look for the "WRAPS Tracker Circuit Board". There is also a link to the article by Mark, WA8SME.
Bob, KI4SBL, wrote an article about his homebrew az-el rotor system, "CNCTRK – A LinuxCNC Based Satellite Tracking System", for the AMSAT Journal. Bob has details of this project and the parts he sells along with a PDF of the article posted on his web site: http://ki4sbl.dodropin.org/CNCTRK/
-- 73 de JoAnne K9JKM [email protected]
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
-- "In a time of universal deceit, telling the truth becomes an act of rebellion." --George Orwell _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Fred- Get a elchepo rotor, point the antenna up at about 25 degrees, and you're good to go. Also check out Norms Rotor Service http://www.rotorservice.com/prod1%20rotor%20sales.htm Check out hamfests for Alliance U100 rotors. In my opinion stay away from egg beaters, they're sort of ok, but many people usually "graduate" to yagi's. Good luck 73 Bob w7LRD Seattle
----- Original Message -----
From: "Fred Castello" [email protected] To: "AMSAT bbs" [email protected] Sent: Sunday, January 24, 2016 8:13:57 PM Subject: [amsat-bb] Az-El Rotors
Please excuse the newbie. I have been receiving signals on SSB, CW, Packet, and FM via just listening for a while now. I am newly back into the satellites as I used to work the high elliptical orbit birds years ago. Let my license lapse and just got it back and upgraded. Now getting the satellite bug again and have really tried researching on the net but am a bit frustrated by the paucity of az-el rotors available. It seems that there are primarily the Yeasu G-5500 type at $700 to $800 or more or make your own and really no in-between. I am looking to have a permanent installation that could track both az and el and preferably be controlled by SatPC32. I am thinking of starting with a small single antenna with both 2m and 70cm on it (i.e. Arrow or other) which would present very low windage. When I initially got re-interested I was imaging a cheap solution with TV rotors but I don’t see any folks doing this and I would prefer not to have to set my antenna solution up every time I want to work the satellites. Am I missing something or could someone point me to an article or reference that I am not aware of? I really appreciate all of the collective experience in this group and thanks for your time! I am using a Kenwood TS 790A without the 1.2 Ghz installed. Best, Fred Castello, KF4FC _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
The gain is needed near the horizon, not so much higher up where the satellite is 6 to 10 dB closer. Up at 25 degrees you wont have as much gain on the satellites down at 10 degrees and lower where over 30% of all passes are below 10 degrees. We suggest a 15 degree up-tilt:
see http://aprs.org/LEO-tracking.html
Of course, if your antenna cannot see down below 10 degrees due to your local horizon, then conversly, dont put the gain there, in that case, a higher angle is OK..
Bob, WB4APR
On Mon, Jan 25, 2016 at 12:24 PM, Bob- W7LRD [email protected] wrote:
Fred- Get a elchepo rotor, point the antenna up at about 25 degrees, and you're good to go. Also check out Norms Rotor Service http://www.rotorservice.com/prod1%20rotor%20sales.htm Check out hamfests for Alliance U100 rotors. In my opinion stay away from egg beaters, they're sort of ok, but many people usually "graduate" to yagi's. Good luck 73 Bob w7LRD Seattle
----- Original Message -----
From: "Fred Castello" [email protected] To: "AMSAT bbs" [email protected] Sent: Sunday, January 24, 2016 8:13:57 PM Subject: [amsat-bb] Az-El Rotors
Please excuse the newbie. I have been receiving signals on SSB, CW, Packet, and FM via just listening for a while now. I am newly back into the satellites as I used to work the high elliptical orbit birds years ago. Let my license lapse and just got it back and upgraded. Now getting the satellite bug again and have really tried researching on the net but am a bit frustrated by the paucity of az-el rotors available. It seems that there are primarily the Yeasu G-5500 type at $700 to $800 or more or make your own and really no in-between. I am looking to have a permanent installation that could track both az and el and preferably be controlled by SatPC32. I am thinking of starting with a small single antenna with both 2m and 70cm on it (i.e. Arrow or other) which would present very low windage. When I initially got re-interested I was imaging a cheap solution with TV rotors but I don’t see any folks doing this and I would prefer not to have to set my antenna solution up every time I want to work the satellites. Am I missing something or could someone point me to an article or reference that I am not aware of? I really appreciate all of the collective experience in this group and thanks for your time! I am using a Kenwood TS 790A without the 1.2 Ghz installed. Best, Fred Castello, KF4FC _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
participants (11)
-
A. Kevin Arber -
Bob- W7LRD -
Fred Castello -
Greg -
Jeff Breitner -
Jerry Conner -
JoAnne Maenpaa -
Norm n3ykf -
Robert Bruninga -
Steven Kalmar -
Ted