Hey there! Did a search on this but didn't find anything on the forums.Anyways, I was watching NASA TV today and saw the tour of the pressurized section. There was some talk of the Fire Ports.I am curious as to the operation of these fire ports. What do they do, how are they activated and so on. Thanks!
Please allow me to re-phrase my previous question. Are both ACVS and RSAD still in use, and if so, in what capacity? If not, what replaced them? And was ACVS used during missions 2A-6A as planned?ETA: Same questions re: OSVS (Orbiter Space Vision System)
Quote from: errant_trajectory on 06/27/2009 07:39 pmHey there! Did a search on this but didn't find anything on the forums.Anyways, I was watching NASA TV today and saw the tour of the pressurized section. There was some talk of the Fire Ports.I am curious as to the operation of these fire ports. What do they do, how are they activated and so on. Thanks!They are just holes in panel in which to place the nozzle of a fire extinguisher.
1. Is this for the purpose of suppressing a fire behind the bulkhead or equipment?2. Is there an automated fire suppression system on ISS?
Has there ever been mention of a Expedition crew member to two staying on ISS for a year?
Quote from: brahmanknight on 06/25/2009 11:51 pmHas there ever been mention of a Expedition crew member to two staying on ISS for a year? I'm not entirely sure if this is what you are asking, but ISTR the Russians proposed year long stays in 2004 http://www.spaceref.com/news/viewpr.html?pid=14059
what is the actual configuration of the batteries?
why do they need change?
what did they do during STS-119 EVA2?
Quote from: NavySpaceFan on 06/26/2009 01:27 pmPlease allow me to re-phrase my previous question. Are both ACVS and RSAD still in use, and if so, in what capacity? If not, what replaced them? And was ACVS used during missions 2A-6A as planned?ETA: Same questions re: OSVS (Orbiter Space Vision System)I'm not familiar with ACVS (robotics is not my specialty). RSAD is still in use for shuttle robotics (SRMS). OSVS is no longer in use, and OSVS visual targets were never placed on the newer modules like Node 2, Columbus, and Kibo.
Apparently the ISS now has a wifi system onboard, having been added with the Japanese research module with the Joint Station LAN now is avaliable via a series of Netgear access points.
Keep in mind:1) The ISS pressure vessels are aluminum, and most of it is covered with an additional metallic layers. This is a very effective wifi shield.2) Although the minimum distance of an overhead pass is relatively is close to the very longest wifi distance records (which use high gain antennas and max power at both ends), it will spend very little time at that distance. You'd need very precise tracking to keep it in view of your antenna for more than a fraction of a second.3) Direct overhead passes will be rare.
If you just want to pick up a signal from ISS, get into ham radio.
Hi-Apparently the ISS now has a wifi system onboard, having been added with the Japanese research module with the Joint Station LAN now is avaliable via a series of Netgear access points.Does anyone have any idea where I could find info as to whether the network is encrypted or not and what the SSID of it might be?
There are no "wi-fi connections over hundreds of kilometers". Although you could pick up the signal over a million kilometers with good enough antennas, wi-fi has a basic limitation of about 29 miles because the protocol can't handle the propogation delay after that.
And getting any signal at that distance would require high gain antennas on both ends since background noise would probably be higher than the signal you're looking for at that distance. If you were terrestrial even a non amplified 40mw 2.4ghz signal would be fairly easy to pick up at 100 miles with a pair of 40db antennas if you had a good line of site. When one end is nothing but leakage through a metal shell and is moving about 14,000 mph, not too likely.