[amsat-bb] LightSail Data?

Pavel Milanes Costa co7wt at frcuba.co.cu
Thu May 28 12:41:35 UTC 2015

The packet modems relay on a CRC checksum of the packets to validate the 
data received as a good packet.

In some situations, like yours when a modem is listening a long time, 
the noise can "forge" a "good" packet. This is a statistically proved 
fact, the CRC is not as strong as we wish for this task.

I'm not saying that this is a noise forged packet, but it's a possibility.


El 27/05/15 a las 20:07, Kelley escibió:
> I left the rig and packet software running today while I was at work. I
> was listening to the LightSail beacon on 437.435 MHz. I had one entry on
> the screen when I got home:
> 1: Fm V-3 to 70-9 Via uH, , , -6 <RR P/F R5>[07:25:21]
> No idea what it means, not sure if it was LightSail or not. Posted as an
> FYI. Curious to know what it might be.

More information about the AMSAT-BB mailing list