That is the Ericsson UHF HT and old packet module, operating in Columbus module for a test of the antenna and cabling. -- Dave, W8AAS On Jul 30, 2011, at 11:47 AM, Armando Mercado wrote: > The ISS was transmitting packet on 437.550 > during 1540 UTC US pass. > > 73, Armando N8IGJ >