NASA
From HFUnderground
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Revision as of 16:06, 8 February 2010
Most of communications NASA does with airplanes and spacecraft happen on VHF, UHF and higher frequencies. However, during every space shuttle launch, there are HF communications between Cape Radio, the Booster Recovery Director and the Solid Rocket Booster (SRB) recovery ships Freedom Star and Liberty Star.
There is a long list of possible frequencies for these communications, but only a few of these have been heard in 2008 and 2009. Those have been marked with a *. Communications are in USB mode, in voice as well as ALE data bursts (automatic link establishment).
Frequency | Last heard | Notes |
2764 | ||
2836 | ||
3041 | ||
3120 | ||
3187 | ||
3365 | ||
4993 | ||
5011 | ||
5180 | ||
5246 | ||
5711 | February 2010 | |
5810 | August 2009 | Briefly, co-channel with a broadcaster |
6751 | August 2009 | |
6897 | ||
6937 | ||
7525 | ||
7765 | ||
7833 | August 2009 | |
9043 | February 2010 | |
9132 | July 2009 | |
10780 | October 2009 | |
11104 | October 2009 | |
11205 | ||
14973 | ||
17780 | ||
20185.6 | ||
20390 |
These frequencies are also used by other users of the shortwave spectrum, so take your time to confirm that you are really hearing NASA.
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