(resent without attachment) Guys this is top work by Daniel. everybody should take notice .....! I am impressed.
wow. so there you go .... frequency diversity is useful. 90 to 95 % is about as good as it gets for a "two branch: system. what band did you do the tests on ? so, on the frame construction. There has to be sufficient redundancy transmitted on each frequency to enable getting all the data from one. if you can run two transmitters simultaneously.. great.. just transmit the same thing on both. On a single transmitter two frequency ping-pong basis, you could run the data twice as fast, as you have indicated in your sketch, costing 3dB.. But... but the diversity will pick you up 10 to 30 dB ! so small price to pay, big real-world gains. So, here, you've got REAL data on the benefits of diversity.. The next extension is three channels..and it will cost another 1.8dB ish, but now you move closer to 100% fade coverage... beyond 4 branches (channels) the benefits are diminishing... With a digital system the two branch diversity will be the difference between a system with less coverage than the analog, and a system that is far superior..... 73 glen On 17/02/2015 2:36 PM, Daniel Mundall wrote: > Hello Glen, > > Thanks for your thoughts about space diversity, I hadn't thought of > the mountain top sites that way before. Makes total sense though, > guess I'll hav ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
