[aprssig] APRN status?
Scott Miller
scott at opentrac.org
Fri Mar 26 14:34:39 EDT 2010
> Why SSTV? Why not just a 500mW- 910Mhz TXR and a $17 board camera from
> Hong Kong?
>
> They carry 420, 480, 520 line board cameras, and all operate off of 12v.
It might be fun, but I'm not sure about the range, and in this case it'd
mean a second power system, second antenna, and probably a separate
housing to get some RF isolation. SSTV will cost me $30 in parts,
should work at longer range, and gives me the satisfaction of having
built it myself and crammed that much more into a < 6 oz package.
> Just would need high gain antennas w/az&el to track it. But you already
> have the Lat/Lon/alt so shouldn't be too hard?
I just need the az/el system and antennas! If anyone has a used G-5500
or something similar they want to sell, let me know. I'll come get it
anywhere between Los Angeles and San Francisco.
The G-5500 computer interface is ridiculously overpriced. Looks like it
shouldn't need more than $10 in parts - a couple of A/D inputs, and 4
MOSFETs for the switches. I could do that with the USB DAQ thing I just
got from NI, but I'd rather have a standalone system that can take
serial commands or autonomously track an APRS station.
Scott
N1VG
More information about the aprssig
mailing list