NASA

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| 5810
| 5810
| August 2009  
| August 2009  
-
| (briefly, co-channel with very strong broadcast signal)
+
| Briefly, co-channel with a broadcaster
|-
|-
| 6751
| 6751

Revision as of 02:30, 29 August 2009

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).

Space Shuttle SRB recovery ship comms
Frequency Last heard Notes
2764
2836
3041
3120
3187
3365
4993
5011
5180
5246
5711 May 2008
5810 August 2009 Briefly, co-channel with a broadcaster
6751 August 2009
6897
6937
7525
7765
7833 August 2009
9043 July 2009
9132 July 2009
10780 August 2009
11104
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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