icw

3 ms·

1.
by icw 9y ago
I'm a little late to the party, but I did a similar study on ridesharing's influence on DWI rates in Austin, TX before and after Uber and Lyft arrived and then exited the city, you can read it here: http://rpubs.com&#x2
2.
by icw 11y ago
Forward error correction can add significant overhead. From the specification of the RF subsystem posted earlier ( http://www.boulder.swri.edu/~tcase/NH%20RF%20Telecom%20Sys%2... ), 5/6 of the data returned is redu
3.
by icw 11y ago
New Horizons is using a 1/6 rate Turbo code for forward error correction, meaning 5/6 of the data returned is redundant. Previous discussion: https://news.ycombinator.com/item?id=9890476
4.
by icw 12y ago
Much faster data rates I suspect - you can spend some of that on forward error correction to compensate for rain fade.
5.
by icw 12y ago
Pretty much - call that antenna gain, it's much cheaper to put bigger and better hardware on the ground. Recall though that the signal still goes through a TDRSS satellite, which also has a bigger dish.
6.
by icw 12y ago
Other more obscure methods of communicating with the ISS include the Russian Lira and Regul systems as well as the Japanese Ka-band dish on the external lab.
7.
by icw 12y ago
Can't speak for S-band, but Ku-band data rates are 25 Mbps Earth-to-ISS and 300 Mbps ISS-to-Earth, which is the maximum supported by TDRSS Ku-band links. Data rates may drop a bit depending on the individual satellite involved, config
8.
by icw 12y ago
Elaborating on TDRSS a little bit - the ISS has allotments on both S- and Ku-band transponders (there are several per satellite) and hands off between satellites (TDRSS is geostationary) as it orbits, it's rare that another TDRSS custo
9.
by icw 13y ago
Try space-filling curves! http://www2.isye.gatech.edu/~jjb/mow/mow.html