IE? You mean people are still using that?<br><br>How quaint!<br><br>;-)<br><br>73<br>Frank<br>AB2KT<br><br><br><br><div class="gmail_quote">On Thu, May 29, 2008 at 9:37 AM, Michelle <<a href="mailto:w5nyv@yahoo.com">w5nyv@yahoo.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I don't think the OpenKM server is open for business quite yet. <br>
Dave just yesterday (successfully) worked through two issues with me (very low file-size limits and batch upload restrictions) and another set of issues with internet explorer compatibility was raised with someone else. Also, I noticed either a feature or a bug with uploading identical files. I don't want the revision rolled when the exact same file is uploaded over again, but that seems to be what happens.<br>
Since OpenKM hasn't "gone public" quite yet, I'll put the documents up on the website and in the feed.<br>
-Michelle W5NYV<br>
<div><div></div><div class="Wj3C7c"><br>
----- Original Message ----<br>
From: Matt Ettus <<a href="mailto:matt@ettus.com">matt@ettus.com</a>><br>
To: Howie AB2S <<a href="mailto:howie@aosusa.com">howie@aosusa.com</a>><br>
Cc: <a href="mailto:Namaste-dev@amsat.org">Namaste-dev@amsat.org</a><br>
Sent: Wednesday, May 28, 2008 10:06:02 PM<br>
Subject: [Namaste-dev] Re: link budget<br>
<br>
Howie AB2S wrote:<br>
> OK, I know I am coming to the table a little late and I may have<br>
> missed something, BUT... from what I have been able to gleen from the<br>
> information posted so far; the satellite transponder will be a bent<br>
> pie (no onboard regeneration), with a global beam (about 18 dBi<br>
> antenna) and a 20W SSPA (EIRP about 31 dBW). The small ground station<br>
> will use a .5M antenna and 10W SSPA (EIRP 37 dBW). Using this<br>
> information and assuming typical Intelsat performance parameters of<br>
> SFD (Saturation Flux Density) of about -78 dB/m2, G/T of 0 dB/K and<br>
> modest Input and output back-off on satellite transponder, this link<br>
> will not work if these two stations are trying to communicate in<br>
> anything other than possibly CW. Given all of the above assumptions,<br>
> the nearest thing to a practical point to point link that I can come<br>
> up with is 16 kbps using 10 Watts and 2.4M (6') antennas at each end,<br>
> this was assuing a threshold Eb/N0 of 4.3db and BPSK modulation. So<br>
> what am I missing here? ........Howie AB2S<br>
<br>
<br>
The ACP will definitely not be a bent pipe. It will be demodulation,<br>
multiplexing, and remodulating the packets which are sent up to it. It<br>
will act more like an ethernet switch than a repeater or transponder. I<br>
don't know if you have access to the new OpenKM server that Dave put up,<br>
but if you do, you can read my docs. I have several presentations up<br>
there, plus some air interface proposal documents. In case you don't<br>
have access, I have attached a presentation I have given a number of<br>
times about the ACP. It is longer (but slightly older) than the one I<br>
gave at Dayton.<br>
<br>
We are also hoping to have more like 50W of power out of the ACP.<br>
<br>
Matt<br>
<br>
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</blockquote></div><br><br clear="all"><br>-- <br>The only thing we have to fear is whatever comes along next. -- Austin Cline