For Post# 14230 I give you...

[N8YX]

http://en.wikipedia.org/wiki/Slow-scan_television

It's come a long way from the days of the Robot 400. (Anyone remember those units, and have you ever used one on the air?)

Recently I installed MMSSTV and a couple other sound card-based programs, connected the '940 up to the Line In jack then parked the rig on 14.230 . Lots of neat stuff scrolls by from time to time. The pirate-radio DXer can occasionally find a frame being transmitted on 6925, usually at the end of an audio program.

Post your favorite off-air captures. I'll Sticky the thread if it generates enough interest.

[KA5PIU]

Hello.

SSTV was a solution looking for a problem.
Even the mechanical television of the 1920 era worked better.
http://www.hawestv.com/mtv_hist/indexP2.htm
Fax machines were already in every major newspaper by 1930.
Kenwood tried to reinvent the wheel with its visual communicator thing.
In fact, Amateur TV is just about dead.
TeleVision takes its name from the early efforts to produce a video telephone, a TeleVision.
Picture Phone was AT&T's answer, and it failed each and every time.
So, I can drag out an old Mechanical 2-way TV set, or computer, get on 160, and send live TV.
Or do this robot thing.
640x480 at 5 frames per second with SEMPTE II and MP3 will work in a standard audio channel.
A 640x480 camera is real cheap and small, one will fit inside an old commercial speaker-mic.
With the standard TI vocoder chip and serial K interface the average talkie can send and receive this on 440MHz, it will even go through a repeater.
Regular NTSC or PAL, or European standard DTV can be transmitted as FSTV.
It is my opinion that Robot was like the picturephone, a solution looking for a problem.