Copper Talk » Ask The Tech » General CB, Ham & Mur's Radio Related Questions/Topics » Spread Spectrum « Previous Next »

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Joey_migs
Member
Username: Joey_migs

Post Number: 76
Registered: 9-2009
Posted on Saturday, December 26, 2009 - 9:00 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Can anyone explain to me how spread spectrum mode works. I mean I understand what frequency hopping or direct sequencing does in jumping about the predefined frequency spectrum but how are the respective algorithms implemented at both the transmitting and receiving end, in other words, how do the aforementioned sync up and 'know' what technique to employ?

Joe
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Ironmike
Junior Member
Username: Ironmike

Post Number: 32
Registered: 6-2007


Posted on Sunday, December 27, 2009 - 5:07 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
In the case of SINCGARS the timing and freq hop information are set ahead of time with an AN/CYZ-10 ANCD (Automated Net Control Device) which in turn receives its time information from a fancy handheld GPS known as a PLGR (Personal Lightweight GPS Receiver) so that all radios on the net are sychronized to the same source.

The rest is PFM.

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