Questions tagged [telecommunication]
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Turbo code used in New Horizons - encoding coefficient?
I know that New Horizons uses turbo code with r=1/6 for space communication1, however I don’t know which is the encoding coefficient, because I din’t think it could be 6, it seems it high. Could you ...
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Can the Tirada-2S satellite communications electronic jamming system be used to jam the Starlink network?
In this October ~7, 2022 Reddit post, I'm reading some conflicting information on whether the Tirada-2S satellite communications electronic jamming system can be used to jam the Starlink network:
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How were Intelsat 1 “Early Bird” and Telstar 1's "hundreds" of simultaneous telephone conversations multiplexed/demultiplexed?
When did they stop routing long-distance analog phone calls through satellites? What was the maximum volume at its peak? contains images, sources and descriptions of both
The Intelsat 1 “Early Bird” ...
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What is a good SNR value for a chipsat in LEO using bpsk?
My team and I are working on a chipsat and we are planning on launching it to LEO, we've also planned using bpsk.
However our use case is a bit different, all we need once it is in LEO is a ...
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Are these good specifications for a X-Band High Gain Antenna?
Currently, I have that for a X-Band High Gain Antenna functioning at 8Ghz, diameter of 3 meters, and a power transmission of 13.1dBW(20Watts) at a distance of about 8.5AU has a Gain of 52.44dBi, free ...
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Curiosity / MRO UHF connection and weak signal modulation
In the case of MRO and Curiosity communications via UHF, an active feedback system was implemented in which Curiosity monitored the quality/SNR of the connection and commanded Curiosity to increase / ...
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How are satellite operating modes implemented?
It is pretty simple to find documentation about satellite operating modes behaviour when trying to develop satellite onboard software (example of safe mode behaviour on wikipedia, or on researchgate), ...
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Has FCC jurisdiction for all the world for SpaceX's Starlink position?
These days, you can read in the news that SpaceX requested FCC for permission to change the orbit of the Starlink satellites already in orbit.
Now... from my understanding, the Starlink satellites ...
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What is considered a good SNR for satellites?
When performing a link budget for satellite communications, a key component is defining an acceptable signal-to-noise-ratio in order to obtain the necessary bit-rate. How does one determine what the ...
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What is the lowest power signal that the DSN can detect?
It is said that the Deep Space Network can detect low-power signals sent from Voyager in the range of 10^-16 W. I can't seem to find any sources that indicate what the minimum power requirement of a ...
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What is carrier lock and bit lock?
I'm not sure if this question belongs here or in Amateur Radio, but during the acquisition of signal from New Horizons on New Year's Day, I heard the controllers call out "carrier lock", "symbol lock",...
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Will there be live HD television from Mars with the Mars 2020 mission?
Is it known if live HD television from Mars would be possible with the Mars 2020 rover mission and if an extra channel would be possible just for relaying HD TV to make live broadcasts possible ?
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