Posted: 7/5/2015 9:59:45 AM EDT
I figure some here might not have heard of this.
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No, I had never heard of it.
The first video was interesting, however I kept asking myself about the "no censorship" idea as everything is going through the satellite...... I only made it 7 seconds into the second video when I saw eveything coming out of the plastic tubs. You have my attention now. 
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So they aren't transmitting yet? We can't hook our Super-Time-Sensitive RPI to the satellite dish out front and receive yet?
ETA: I stand corrected. ETAA: I wonder if this can't be received by an RTL-SDR type dongle. That would make the world glow with unicorn farts and fairy dust. - |
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Quoted:
So they aren't transmitting yet? We can't hook our Super-Time-Sensitive RPI to the satellite dish out front and receive yet? ETA: I stand corrected. ETAA: I wonder if this can't be received by an RTL-SDR type dongle. That would make the world glow with unicorn farts and fairy dust. - Would be neat to see it connected to a Broadband hamnet network too. I want one |
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Quoted:
So they aren't transmitting yet? We can't hook our Super-Time-Sensitive RPI to the satellite dish out front and receive yet? ETA: I stand corrected. ETAA: I wonder if this can't be received by an RTL-SDR type dongle. That would make the world glow with unicorn farts and fairy dust. - What freq are they transmitting on? |
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There are several problems I see from my hour or so of research:
No, the cool RTL-SDR dongles receive DVB-T signals and this is on DVB-S/S2. The cost of a proper receiver is only about $40 but..... The RPi image doesn't have support but for the Geniatech HDStar. They say others work, but they haven't tested any of them. So far I can't see any way of "receiving" the data but through their image. It doesn't seem to be out in the wild yet. I mean I'm sure it is, but there doesn't seem to be a package you can just apt-get install and go on your merry way yet. Finally I haven't crossed the bridge of the LNB that has to be on the dish. If it was something standard that people throw away when they switch sat service, that would be cool. 
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Been LOTS'a discussion on the FTA board at Satellite Guys:
=24]Links here |
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The lighthouse receiver just released.
I don't think $99 is that bad of a deal for what it is, now to just justify it and see about getting a free dish... http://store.outernet.is/products/lighthouse-by-outernet-satellite-data-receiver |
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Quoted:
Set on up on a Pi with a TNC-Pi to one of those 100W Spectra's I have… Just thought of a great idea. Use them to update emergency messages over an Amateur packet frequency. Everyone with an RTL dongle could receive them… http://aprs.org/txt/seventy.txt |
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Quoted:
There are several problems I see from my hour or so of research: No, the cool RTL-SDR dongles receive DVB-T signals and this is on DVB-S/S2. The cost of a proper receiver is only about $40 but..... The RPi image doesn't have support but for the Geniatech HDStar. They say others work, but they haven't tested any of them. So far I can't see any way of "receiving" the data but through their image. It doesn't seem to be out in the wild yet. I mean I'm sure it is, but there doesn't seem to be a package you can just apt-get install and go on your merry way yet. Finally I haven't crossed the bridge of the LNB that has to be on the dish. If it was something standard that people throw away when they switch sat service, that would be cool.
Rtls do dvb natively through the factory application but with the zadig driver all they do is shove the I Q data to another application. Unless this exceeds the bandwidth I don't see why it wouldn't work with the right software. |
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Quoted:
Quoted:
Set on up on a Pi with a TNC-Pi to one of those 100W Spectra's I have… Just thought of a great idea. Use them to update emergency messages over an Amateur packet frequency. Everyone with an RTL dongle could receive them… http://aprs.org/txt/seventy.txt Same basic principle as outernet. |
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Transmission protocols such as packet would make it easy to stream and assemble that kind of data. But I remember in the '80s some repeater operators were experimenting with streaming data using what they were calling subaudible RTTY. This was transmitted on the output channel and from what I was told, voice FM was transparent to it and could occur at the same time. I would say, from what I heard on one operating example, that the data rate had to be pretty low.
During the same time I remember a handful of C band satellite transponders had data streams on one or more of the audio subcarriers that were just straight up Bell 202 tones you could decode with any PC modem. Mostly pretty esoteric stuff of little interest or value to anyone. At least I never found anything of interest snooping around for those streams, but it was quite a time sink. |