Informational Videos Series
Introduction Video (long version) and Potential RF Issues
Potential RF Issues Video (continued)
Side by Side FM and COFDM Link Video
The following video shows two RF video links with the same RF power level, two watts, one using the traditional FM link modulated +/- 4 Mhz and a COFDM link with 1740 digital carries over 8 Mhz. Note the FM video quality suffers immediately… the drop outs are not directly related to just signal level but multipath cancellations. The FM links actually gets better further way then complete fails when non line-of-sight. The COFDM continues to work non line-of-sight the receiver was a two channel maximal ratio combining diversity receiver.
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