Transmit distance 25 m max. In case of use of the pressurised module, a power level limited to 50 W would be feasible, which is linked to the small dimensions of the airlock. 6.5 SPAS & Spartan Platforms Technically, these options are different from the above, since they offer much more power capability. They would interesting to demonstrate realistic power levels transmission (kiloWatts) at short distances. Using kiloWatt Klystrons in Ku-Band would enable a transmit/receive/use experiment at distance ranging 30-100 meter, depending upon the transmit/receive antennae radii. 6.6 Ariane 5 Demonstration Flights This option differs from the Ariane 4 ones by the larger payload capability. Either the transmit distance, using larger antennae, or the transmit power (a few hundred Watts) could be increased. 6.7 MASER / MAXUS Sounding Rockets These vehicles do not provide basic capabilities much different from the Ariane 4 ones. The microwave emitters would then be identical.
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