Besides amateur radio, this method was also used to send wire photos to newspapers. I was a photographer at a daily newspaper in 1970, and we had AP (Associated Press) and UPI (United Press International) machines in the photo lab. AP held editorial decisions on content to transmit between photos. A speaker on the machine allowed hearing the conversations. A leased phone line connected all machines at AP and newspaper offices. The audio modulation was much the same as the program used in your v
Hi Clem, I know it's been a while since you did this video - just a tip re MMSSTV... see that red bar that kept popping up on the receive computer to the left of the waveform? What you do is you adjust your sound settings (audio level into the receive computer) so the bar is GREEN... that ensures the best picture quality. I'm an amateur radio operator and use MMSSTV all the time - you'll get the best results with the receive levels in the green. It's a great program. Regards, Craig VK3VCM
i've just tried it on cassette, and i have the same slant problem. The B/W 8 seems to work the best for me, allthoguh its black and white, it comes out the best. i'm going to try different RX Modes.:)
this experiment is fantastic! I tried some NBTV on a cassette, and did get a pretty stable video coming through! i havent' tried sstv on tape, but will give it a try! fantastic
A very interesting video! I imagine that transmitting a video like this would take a huge amount of time! Sounds a lot like a modem, doesn't it? Thanks for the interesting video!
It looks like what I said in the last video was true and the timing really is critical! The wow and flutter made SSTV flutter badly and no amount of adjustment would fix it! It was worth a try though!! I guess listening to them being broadcast with an HF receiver is a better use for it :) I wonder if digital tty transmissions or digital SSTV would work on tape! I'm thinking it will probably do the same
When I used to have a ZX81 and cassette deck, they did say in the manual that funnily enough the lower-fi mono cassette decks were better than hi fi stereo ones for the purpose of storing and retrieving computer data. Maybe it's the same with slow scan stuff. I must say it's pretty amazing though!
The lo-fi mono cassette decks usually had a higher output level, on most stereo decks the line out just wasn't strong enough. But I remember once I had a ZX spectrum connected to the line out of a stereo deck and it could load from it just fine.
Is that comparison picture supposed to be a villain holding a hotdog? -.-
RobloxFredhe77 1 day ago
USE AUTO SLANT! (MMSSTV>Option>auto Slant(check it)>press OK.)
TheUser1928 1 month ago
Lol it sounds like some of the sounds from Portal when you make the radio mess up.
TheUser1928 1 month ago
Dial-up ^^
sulmann26 2 months ago
Tried to scan it up with RX-SSTV, and all I can say is, your sound quality could be better...
skelle56 4 months ago
@skelle56 I think YouTube's audio compression could have something to do with that.
CoolDudeClem 4 months ago
@CoolDudeClem Probably.
skelle56 4 months ago
sounds like an old maulfunction cellphone
LiviuJETIX 5 months ago
Is there slow scan software for mac?
SuperTechieJ 8 months ago
@SuperTechieJ Probably somewhere out there. Try searching SSTV software download for Mac or something like that.
skelle56 4 months ago
the tapes would look much better if you turned afc on
bben95 9 months ago
why is your voice so high? Wait, you are male right?
bben95 9 months ago
@bben95 I wanted to stay a child forever, so I trained my voice to not break, I think it worked quite well.
CoolDudeClem 9 months ago 4
Besides amateur radio, this method was also used to send wire photos to newspapers. I was a photographer at a daily newspaper in 1970, and we had AP (Associated Press) and UPI (United Press International) machines in the photo lab. AP held editorial decisions on content to transmit between photos. A speaker on the machine allowed hearing the conversations. A leased phone line connected all machines at AP and newspaper offices. The audio modulation was much the same as the program used in your v
maplewoodsp 9 months ago
What happens if you try to play a SSTV transmission backwards? would the image show up mirrored and/or upside-down and/or negative?
spacehelmetforacow 10 months ago
Hi Clem, I know it's been a while since you did this video - just a tip re MMSSTV... see that red bar that kept popping up on the receive computer to the left of the waveform? What you do is you adjust your sound settings (audio level into the receive computer) so the bar is GREEN... that ensures the best picture quality. I'm an amateur radio operator and use MMSSTV all the time - you'll get the best results with the receive levels in the green. It's a great program. Regards, Craig VK3VCM
craig3008 1 year ago
doesn't NASA still use this? for the stuff, well, i kmnow for the ISS cam, they use satelite webcams
Rcrby525 2 years ago
i've just tried it on cassette, and i have the same slant problem. The B/W 8 seems to work the best for me, allthoguh its black and white, it comes out the best. i'm going to try different RX Modes.:)
m134mr 2 years ago
this experiment is fantastic! I tried some NBTV on a cassette, and did get a pretty stable video coming through! i havent' tried sstv on tape, but will give it a try! fantastic
m134mr 2 years ago
A very interesting video! I imagine that transmitting a video like this would take a huge amount of time! Sounds a lot like a modem, doesn't it? Thanks for the interesting video!
clydesight 2 years ago
John Logie Baird : That was quick for sound to pictures
Films4You 2 years ago
I'm RXing some RTTY right now, it sounds horrible but it works!!!
tribalmasters 2 years ago
It looks like what I said in the last video was true and the timing really is critical! The wow and flutter made SSTV flutter badly and no amount of adjustment would fix it! It was worth a try though!! I guess listening to them being broadcast with an HF receiver is a better use for it :) I wonder if digital tty transmissions or digital SSTV would work on tape! I'm thinking it will probably do the same
tribalmasters 2 years ago
When I used to have a ZX81 and cassette deck, they did say in the manual that funnily enough the lower-fi mono cassette decks were better than hi fi stereo ones for the purpose of storing and retrieving computer data. Maybe it's the same with slow scan stuff. I must say it's pretty amazing though!
MarkPMus 2 years ago
The lo-fi mono cassette decks usually had a higher output level, on most stereo decks the line out just wasn't strong enough. But I remember once I had a ZX spectrum connected to the line out of a stereo deck and it could load from it just fine.
CoolDudeClem 2 years ago
There is a lot of extraneous burbly background noise on your video Clem! It is in the background even when you speak.
MarkPMus 2 years ago
It could be an artifact of the noise reduction process, I'm experimenting with some DSP's to try to get my camera's sound to be clearer.
CoolDudeClem 2 years ago
It's really fascinating to see this! Also really interesting!
DrCassette 2 years ago
thanks, I think that will be the last SSTV experiment for now, as I have some other audio experiments planned.
CoolDudeClem 2 years ago
have you ever heard of RTTY? it transmits data (text) much like slow scan tv.
marcelomar2 2 years ago
I have heard of it, but haven't tried it (yet)
CoolDudeClem 2 years ago