amateur radio communication वाक्य

Amateur Radio on the ISS ( ARISS ) is a volunteer programme which encourages students worldwide to pursue careers in science, technology, engineering and mathematics through amateur radio communications opportunities with the ISS crew.
His stay on the station improved operations in several areas, including transfer procedures for a docked space shuttle, " hand-over " procedures for long duration American crew members and " Ham " amateur radio communications.
The basic certificate is awarded to those amateur radio operators who successfully complete and confirm amateur radio communications with land based amateur radio stations located in at least 100 different " entities " on the DXCC List.
Where two-way amateur radio communication is authorized on 60 m, it has generally been within the frequency range 5250 & ndash; 5450 kHz, but the whole of this range is not necessarily available and allocations vary significantly from country-to-country.
His stay on the station improved operations in several areas, including transfer procedures for a docked space shuttle, " hand-over " procedures for long-duration American crew members and " ham " amateur radio communications, and also saw two spacewalks to reconfigure the station's power grid.