Can the camera TX an aprs compatible position report before/after the SSTV image?<br><br clear="all">Wes
<div>---<br>The world needs more geniuses with humility because there are so few of us left.<br></div><br>
<br><br><div class="gmail_quote">On Wed, May 25, 2011 at 17:48, Scott Miller <span dir="ltr"><<a href="mailto:scott@opentrac.org">scott@opentrac.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
The camera image is scaled down from 640x480 to 320x240. Technically the SSTV modes are analog so there's no fixed horizontal resolution, it's only constrained by the bandwidth, but the SR1 transmits 320 pixels horizontally.<br>
<br>
Scott<br>
N1VG<div><div></div><div class="h5"><br>
<br>
On 5/25/2011 2:32 PM, Andrew Rich wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Scott,<br>
<br>
What is the relationship between the number of lines in the video and<br>
the SSTV image ?<br>
<br>
- Andrew -<br>
<br>
----- Original Message ----- From: "Scott Miller" <<a href="mailto:scott@opentrac.org" target="_blank">scott@opentrac.org</a>><br>
To: "TAPR APRS Mailing List" <<a href="mailto:aprssig@tapr.org" target="_blank">aprssig@tapr.org</a>><br>
Sent: Thursday, May 26, 2011 7:06 AM<br>
Subject: Re: [aprssig] SSTV camera from Argent<br>
<br>
<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Judging from the sample pic on Scott's website, the text overlay is at<br>
such a small point size that it would be nearly illegible in the Robot<br>
mode. I assume you would will implement the switches or jumpers to force<br>
</blockquote>
<br>
It doesn't do the character generator at all in Robot mode. I<br>
initially put it in because the Scotty modes were 256 lines and the<br>
camera scaled down most easily to 240 lines, so I was left with 16<br>
lines to fill up.<br>
<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
How well does the gadget deal with daylight light levels?<br>
</blockquote>
<br>
It does OK, though I think it doesn't have an IR cut filter so colors<br>
can be off.<br>
<br>
Once I get a frame buffer set up to handle BT.656 data, I'll have a<br>
lot more camera options - both NTSC/PAL decoders and modern cell phone<br>
style cameras.<br>
<br>
Scott<br>
N1VG<br>
<br>
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