ORIGINAL: beau0090_99
Channels are still the terminology used on 2.4ghz. Look at your Wi-Fi network. It still uses channels. I am using channel 11, which happens to be 2.462 ghz, or 2462 Mhz. How would the system know which frequency to look for? Because there are allocated channels within each system to assign.
No that is not accurate. DSS/DSM 2.4gHz is not directly analagous to WiFi 2.4ghz even though the same frequency range is used.
Channels in 2.4gHz DSS/DSM refers to the center range of a set of broader frequencies that will be scanned.
If you are using 2.462gHz, your receiver and TX can jump ( or rather focus on, to be more correct ) to adjacent frequencies under DSS/DSM.
Even if the center frequency is blocked the broad band nature of the TX/RX lets the signal get through on the adjacent frequencies.
As it says in the link you posted:
"Distributed Spread Spectrum radio can be likened to a multi-lane freeway where your car seems to appear at random in different lanes. In fact, it appears and disappears so quickly that it almost appears to exist in all lanes at the same time.
In radio terms, the transmitter uses a wide spread of frequencies to send data to the receiver, rather than the very narrow band of frequencies used by the older narrowband RC sets we've seen up until now. "
So by analogy, if your LANE is blocked, your TX/RX "see" traffic coming down another lane.