[hpsdr] FM RF level

[Warren C. Pratt]

Hi Brian,

You are correct the the level is 6dB down as of the 3.2.7 release. There 
are two reasons I made that decision, one was to ease the pain for the 
PA, the other relates to some filter overshoot when excited by the FM 
signal.  This latter issue can be dealt with in a way other than 
reducing the power --- just a small matter of software.:-)

I'll put this on the list for further consideration and work. However, 
given all that's going on, I won't make a specific time commitment at 
this point.

73,
Warren  NR0V

On 2/10/2014 5:29 AM, Brian D wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> I came to use my Anan100d on 2m at the weekend using my transverter and had
> problems with the RF out being very low.
>
>
> Susequent investigations seem to indicate that the RF output is reduced by
> 6dB when using FM, as it also does with AM.
>
> This is using versions of HPSDR later than 3.2.7
>
> I tried 3.1.5 and the level was not reduced. Something changed between the
> versions. The reduction may be worthwhile using the built in amplifier but
> it reduces the power output I can attain on 2m.
>
> Is there any setting I've overlooked, or could this reduction be made
> optional (possibly in Tx profiles)?
>


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