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project:hgg:open_tasks:data_acquisition_module_-_hamsats

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 project:hgg:open_tasks:data_acquisition_module_-_hamsats [2012-01-12 07:52]84.56.182.161 angelegt project:hgg:open_tasks:data_acquisition_module_-_hamsats [2012-01-12 07:54] (aktuell)84.56.182.161 2012-01-12 07:54 2012-01-12 07:52 angelegt 2012-01-12 07:54 2012-01-12 07:52 angelegt Zeile 1: Zeile 1: - with amateur radio digital satellite communication,​ carrier frequencies around 435 MHz + with amateur radio digital satellite communication,​ carrier frequencies around 435 MHz are usual (see the tables of satellite operating modes). ​ - are usual (see the tables of satellite operating modes). The signals are FSK modulated, + - i.e. there is roughly speaking one of two adjacent frequencies transmitted. The distance + The signals are FSK modulated, i.e. there is roughly speaking one of two adjacent frequencies transmitted. - of the frequencies is typically 10-50 kHz. With a FM receiver you get a digital signal, + - which is specially encoded to exploit the existing channel properties. + The distance of the frequencies is typically 10-50 kHz. - You can go to http://​symek.de then follow "​english",​ "​satellite radio" and "​IFD"​ + - for the receiver. Find "​TNC3S"​ and "​FSK9601 modem" for the modem and PC-interface. + With a FM receiver you get a digital signal, which is specially encoded to exploit the existing channel properties. + + You can go to http://​symek.de then follow "​english",​ "​satellite radio" and "​IFD"​ for the receiver. ​ + + Find "​TNC3S"​ and "​FSK9601 modem" for the modem and PC-interface. The data protocol is always Packet-Radio (AX.25), so you can decode it with any TNC. The data protocol is always Packet-Radio (AX.25), so you can decode it with any TNC.
project/hgg/open_tasks/data_acquisition_module_-_hamsats.txt · Zuletzt geändert: 2012-01-12 07:54 von 84.56.182.161