You can't compare apples for apples this way, at least not as these 
things are used in the REAL WORLD

It is IMPROPER to compare an analog and digital system on SNR because 
they are very different beasts. Of course the digital will outperform 
the analog system one it get sa lower BER.

The test should be , at what power level can you achieve a readability 5 
conversation ? , at what power level can you achieve a readability 3 
conversation ?
The power level requird should be normalized for a 0dB noise figure (so 
the front end of the receiver system is taken out of the equation)

Why ? because that is how we use our radios.

however

I have no doubt that with a modem operating with a SSB radio, it will 
outperform the FM radio hands down.


On 6/02/2015 7:04 AM, David Rowe wrote:
> Daniel, VA7DRM, and I have been doing some tests using GMSK, Codec 2,
> and real radios.  It appears we are getting at 10dB gain over Analog FM
> and 1sts gen DV systems:
>
>     http://www.rowetel.com/blog/?p=3856
>
> - David
>
>
>
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-- 
-
Glen English
RF Communications and Electronics Engineer

CORTEX RF
&
Pacific Media Technologies Pty Ltd

ABN 40 075 532 008

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au mobile : +61 (0)418 975077



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look and join the conversation now. http://goparallel.sourceforge.net/
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