I receive the ISS on 145.800. When I hear it sometimes I hear NAISS talking with hams on the ground, and at others times I hear QSO's between ground based hams. Could you explain what is the difference here. Thanks.

An International Space Station Expedition 18 ARISS school contact has been planned with participants at the Hampton Bays Middle School, Hampton Bays, New York on 25 February. The event is scheduled to begin at approximately 1357 UTC.

The contact will be a direct between stations NA1SS and W2AMC. The contact should be audible over most of eastern North America. Interested parties are invited to listen in on the 145.80 MHz downlink. The participants are expected to conduct the conversation in English.

The Hampton Bays School District serves a small community nestled on the shore of the Atlantic Ocean on Long Island, 125 miles from New York City. The students who will be asking questions have been picked from among those who participated in an essay contest. Their curriculum includes topics on the solar system and space exploration.

An International Space Station Expedition 18 ARISS school contact has been planned with participants at the 1 Circolo Didattico G.Marconi, Casamassima, Italy on 25 February. The event is scheduled to begin at approximately 0750 UTC.

The contact will be a direct between stations ON4ISS and IZ7EVR. The contact should be audible over most of Europe. Interested parties are invited to listen in on the 145.80 MHz downlink. The participants are expected to conduct the conversation in English.

The II° Didactic Center "Marconi" in Casamassima di Bari (BA) includes one Primary School and two Nursery Schools. We have more than 800 pupils and a teaching staff composed by 70 teachers, directed by the headmaster, Mrs. Rita Rosaria Gagliardi. Our Primary School have multimedia and scientific laboratories, while our pupils have an active role in a number of projects, which make them experience Science, Music, Dance, Theatre, Physical Education and more.

An International Space Station Expedition 18 ARISS school contact has been planned with participants at Chatham Public School, Taree, NSW, Australia on 25 February. The event is scheduled to begin at approximately 0732 UTC.

The contact will be a telebridge between stations NA1SS and K6DUE/3. The contact should be audible over eastern N. America. Interested parties are invited to listen in on the 145.80 MHz downlink. Audio from the contact should also be available via the AMSAT conference on EchoLink and via the 9010 Discovery reflector on IRLP. The participants are expected to conduct the conversation in English.