Hi AMSATs,
I like to give my comment on the message of N6GHZ.
He wrote: "I am tried to get 10 metres looked at again by the AMSAT team but my comments have gone unanswered. I have also tried to query Peter to get an understanding why 29 MHz was dropped on P3E but no answer there either."
As far as I know there will be a 29MHz receiver on P3e. Maybe things have changed but at the last designer meeting in Marburg, where I showed my MODE-UV prototype it was discussed.
At that time the 29MHz receiver was a task of the Finish group. However this group was very busy with other parts of the satellite and 29MHz was on low priority. Another problem was the physical space, and it was agreed that is should join a small space in the MODE-UV box.
As I had the MODE-UV transponder under my control I managed to join some PCB units together to make more space for a 29MHz receiver. Finally I even made the 29MHz receiver unit myself as I had the whole transponder here at home.
The whole MODE-UV flight-mode transponder included the 29MHz receiver unit I delivered at AMSAT-DL in May 2005, as the first flight ready transponder for P3e. Unfortunatly the 29MHz I had to take out as the Finish group was choosen to design it, what I respect fully.
The transponder included the 29MHz receiver can be seen on my webpage at the following link: http://www.qsl.net/pe1rah/p3e_mode-uv3/p3e_mode-uv3.html
What supprizes me is that you tell me that 29MHz is not on P3e... I hope this is a mistake as I still have the receiver here at home for P3e in case the Finish group can not deliver their 29MHz rx.
Unfortunatly I also didn't hear any sign from AMSAT after I delivered my MODE-UV flight-model. I mentioned many times that I will support in case of MODE-UV problems, as I do it for the world-wide AMSAT community in general... like I did with VO-52. This promise still stands...
What ever will not fly on P3e and is of my design will be available for any other (long lifetime) amateur satellite project that has a good chance to fly and will support world-wide ham community. In case there is free satellite space available on an interresting OSCAR orbit (AMSAT or none-AMSAT satellite) I might sponsor a mode-uv or mode-vu linear transponder of my own design.
I also hope some more 23cm uplinks will be available on satellites. I would love to test my 200W PA on a Ground Plane antenna, and see how it works on the amsats (and use this band widely so other none-ham users know ham activity is in this band (and hopefully they disapear soon) :o)
Lets make some more sats like VO-52... I only need the box, solar panels and a rocket... The radio and antennas I will take care of ;o)
73 William ---
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Hi William,
Sorry to have to pass this email from Peter received August 10, 2006.....
"Hi Bill,
Unfortunately I have to inform you, that the 29 MHz Uplink on P3-E was canceled... There are a couple of problems: 1) size of the antenna to make it useful 2) noise environment (the s/c was designed for frequencies above 144 MHz) 3) link situation (too weak signals when around apogee)
Because of the above criterias (and other circumstances), we decided to drop it.. it was an option only anyway..
best wishes 73 Peter, DB2OS"
Let me tell you William, I really appreciate all the efforts you have put into satellite module building. Please keep up the good work!!
Regards...Bill - N6GHz
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org]On Behalf Of William Leijenaar Sent: Monday, September 11, 2006 2:20 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: 10m band kibitzing
Hi AMSATs,
I like to give my comment on the message of N6GHZ.
He wrote: "I am tried to get 10 metres looked at again by the AMSAT team but my comments have gone unanswered. I have also tried to query Peter to get an understanding why 29 MHz was dropped on P3E but no answer there either."
As far as I know there will be a 29MHz receiver on P3e. Maybe things have changed but at the last designer meeting in Marburg, where I showed my MODE-UV prototype it was discussed.
At that time the 29MHz receiver was a task of the Finish group. However this group was very busy with other parts of the satellite and 29MHz was on low priority. Another problem was the physical space, and it was agreed that is should join a small space in the MODE-UV box.
As I had the MODE-UV transponder under my control I managed to join some PCB units together to make more space for a 29MHz receiver. Finally I even made the 29MHz receiver unit myself as I had the whole transponder here at home.
The whole MODE-UV flight-mode transponder included the 29MHz receiver unit I delivered at AMSAT-DL in May 2005, as the first flight ready transponder for P3e. Unfortunatly the 29MHz I had to take out as the Finish group was choosen to design it, what I respect fully.
The transponder included the 29MHz receiver can be seen on my webpage at the following link: http://www.qsl.net/pe1rah/p3e_mode-uv3/p3e_mode-uv3.html
What supprizes me is that you tell me that 29MHz is not on P3e... I hope this is a mistake as I still have the receiver here at home for P3e in case the Finish group can not deliver their 29MHz rx.
Unfortunatly I also didn't hear any sign from AMSAT after I delivered my MODE-UV flight-model. I mentioned many times that I will support in case of MODE-UV problems, as I do it for the world-wide AMSAT community in general... like I did with VO-52. This promise still stands...
What ever will not fly on P3e and is of my design will be available for any other (long lifetime) amateur satellite project that has a good chance to fly and will support world-wide ham community. In case there is free satellite space available on an interresting OSCAR orbit (AMSAT or none-AMSAT satellite) I might sponsor a mode-uv or mode-vu linear transponder of my own design.
I also hope some more 23cm uplinks will be available on satellites. I would love to test my 200W PA on a Ground Plane antenna, and see how it works on the amsats (and use this band widely so other none-ham users know ham activity is in this band (and hopefully they disapear soon) :o)
Lets make some more sats like VO-52... I only need the box, solar panels and a rocket... The radio and antennas I will take care of ;o)
73 William ---
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participants (2)
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Bill Ress -
William Leijenaar