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Search: Posts Made By: cribbagepeg
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Forum: Rumours & News
17th Jul 2014, 13:43
Replies: 11,831
Views: 24,205,541
Posted By cribbagepeg

ITU, satcom and ACARS

ITU is a UN body funded by countries hosting the major players in their sphere of influence, with lobbying by those players aimed at preserving their monopolies or at least dominant positions within...
Forum: Rumours & News
12th Apr 2014, 02:33
Replies: 11,831
Views: 24,205,541
Posted By cribbagepeg

Would a satcom person please step in? The raw...

Would a satcom person please step in? The raw bandwidth of a sat link is misleading. Individual A/C must either be polled (asked to transmit) or must speak up in the hope that data can be...
Forum: Rumours & News
24th Mar 2014, 01:59
Replies: 11,831
Views: 24,205,541
Posted By cribbagepeg

Halon at very high temperatures - um, phosgene,...

Halon at very high temperatures - um, phosgene, no? Just a little bit poisonous. Halon works well on flames as it is inert and heavier than air. In the case of incendiary Magnesium, Titanium e.g.,...
Forum: Rumours & News
19th Mar 2014, 21:29
Replies: 11,831
Views: 24,205,541
Posted By cribbagepeg

doppler / pinging

doppler would be proportional to the speed of approach or departure by the craft relative to the bird's position. Given the height of the bird, and the very small angle subtended by the beam...
Forum: Rumours & News
17th Mar 2014, 14:02
Replies: 11,831
Views: 24,205,541
Posted By cribbagepeg

everyone pings all the time

The main barrier to requent, rich-content data packets is the infrastructure to support the comms. Terrestrial no big deal, but satellite bandwidth is another story. Haven't done the math, but...
Forum: Rumours & News
16th Mar 2014, 18:25
Replies: 11,831
Views: 24,205,541
Posted By cribbagepeg

As with the AF447 saga, there are some very...

As with the AF447 saga, there are some very bright and well-informed people both on this excellent blog and involved in the search, analysis and information release. I have great faith that all of...
Forum: Rumours & News
16th Mar 2014, 17:48
Replies: 11,831
Views: 24,205,541
Posted By cribbagepeg

CNN making the news

First, Lithium cells. A pink herring sans roe each new day. Now they've latched on to the coffee thing. I'm heading for Fox who at least seem to stay current.
Forum: Rumours & News
15th Mar 2014, 19:03
Replies: 11,831
Views: 24,205,541
Posted By cribbagepeg

satcom question

As most birds are "bent pipes" and generally connect the incoming RF signal to an onboard transmitter on a coresponding downlink frequency, any doppler shift present in the uplink one should be...
Forum: Rumours & News
14th Mar 2014, 14:42
Replies: 11,831
Views: 24,205,541
Posted By cribbagepeg

cell phones on or off?

If they are in "flight" mode, they do NOT transmit ANYTHING, by definition. Ditto for "power off". But it makes for good TV at times.
Showing results 1 to 9 of 9


 
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