Thread: Discussion Another new 2.4GHz system!
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Old Jan 28, 2009, 03:44 AM
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Originally Posted by earlwb
NO, it is not compatible systems. This is something different this time. These systems are using neither DSSS nor FHSS, but what the mfgr calls "PPM/GFSK". GFSK, Gaussian Frequency Shift Keying, is a different modulation from both FHSS and DSSS. It sends its signal on a single carrier/frequency, and blocks this frequency, just as old-school 35/72MHz equipment. But there's no old-school crystal - the system selects the frequency by itself. As the name implies, the frequency is then varied (shifted) very slightly to indicate the 1's and 0's of the digital signal. GFSK is still legal according to the european standard EN 300 328 which regulates 2.4GHz equipment.
It is 100% compatible with Turobrix systems.
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