David, It is much more efficient in terms of the information transmitted, hence power and bandwidth, to use the raw binary/hex for transmission. It also saves the programming and memory in the satellite CPU. The combination frees up resources which can be otherwise used. It works well given the almost universal availability of personal computers. I recall, vaguely, there have been a few birds with some "quick look, real people" data, but I may be in error.
73s, Alan WA4SCA <-----Original Message----- <From: [email protected] <[mailto:[email protected]] On Behalf Of Dave Marthouse <Sent: Monday, December 09, 2013 7:35 AM <To: [email protected] <Subject: [amsat-bb] General Telemetry Question < <I noticed over the years that satellite beacon downlinks transmit their <telemetry in a form that must be translated by a telemetry app to their <engineering values. Since the information is transmitted from <the satellites <why not provide the engineering values in the downlink without <the extra <step having to be done on the ground? What is the logic of doing this? < < < < < <Dave Marthouse N2AAM <[email protected] < < <_______________________________________________ <Sent via [email protected]. Opinions expressed are those of <the author. <Not an AMSAT-NA member? Join now to support the amateur <satellite program! <Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb < _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
