Hi Greg

True diversity (2 x omni) receiver wont fix the long echo scenario....
it is likely in that scenario both diversity branches will cop the same
(bad) delay profile .

However it would likely improve the performance if there was a very high
level of local multipath, as such decorrelating the two antennas.

That is to say, there would be a long delay profile applied to both
antennas, and there would also but, superimposed, a short delay (local
multipath) delay profile. If you are lucky, the two antennas will see a
different composite delay profile.

It would not improve the performance in a low local multipath dominant
two tap local delay scenario  like rural/farmland.

There are some other mitigation strategies.  1) dynamic directivity by
use of a steerable antenna, there at least two antennas are used in a
beam steering scenario, and the strong (trouble) reflections are
nulled.  2) reduce the symbol rate/ reduce the SNR requirement

cheers


On 18/09/2017 7:19 PM, Gregory Maxwell wrote:
> On Mon, Sep 18, 2017 at 9:14 AM, glen english <g...@cortexrf.com.au> wrote:
>> The only real fix is slowing down the symbol rate.
> A true diversity receiver is also a real fix.
>
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