[aprssig] SSTV camera from Argent

[Wes Johnston, AI4PX]

Can the camera TX an aprs compatible position report before/after the SSTV
image?

Wes
---
The world needs more geniuses with humility because there are so few of us
left.



On Wed, May 25, 2011 at 17:48, Scott Miller <scott at opentrac.org> wrote:

> 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.
>
> Scott
> N1VG
>
>
> On 5/25/2011 2:32 PM, Andrew Rich wrote:
>
>> Scott,
>>
>> What is the relationship between the number of lines in the video and
>> the SSTV image ?
>>
>> - Andrew -
>>
>> ----- Original Message ----- From: "Scott Miller" <scott at opentrac.org>
>> To: "TAPR APRS Mailing List" <aprssig at tapr.org>
>> Sent: Thursday, May 26, 2011 7:06 AM
>> Subject: Re: [aprssig] SSTV camera from Argent
>>
>>
>>  Judging from the sample pic on Scott's website, the text overlay is at
>>>> such a small point size that it would be nearly illegible in the Robot
>>>> mode. I assume you would will implement the switches or jumpers to force
>>>>
>>>
>>> It doesn't do the character generator at all in Robot mode. I
>>> initially put it in because the Scotty modes were 256 lines and the
>>> camera scaled down most easily to 240 lines, so I was left with 16
>>> lines to fill up.
>>>
>>>  How well does the gadget deal with daylight light levels?
>>>>
>>>
>>> It does OK, though I think it doesn't have an IR cut filter so colors
>>> can be off.
>>>
>>> Once I get a frame buffer set up to handle BT.656 data, I'll have a
>>> lot more camera options - both NTSC/PAL decoders and modern cell phone
>>> style cameras.
>>>
>>> Scott
>>> N1VG
>>>
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>>>
>>
>>
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>>
>>
>
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