How difficult would it be to widen your software PLL? That might make the rest moot.
On Mon, Sep 14, 2015 at 8:06 PM, David Rowe <[email protected]> wrote: > Yes I'll add some "sights" to the graticule some time. An additional > complication is that the 700B carrier spacing is non-uniform, a little > trick to reduce PAPR. > > - David > > On 15/09/15 10:47, Peter Reichelt wrote: > > David and list > > As tuning is more critical on the 700 mode as compared to the 1600 mode > and there is an absence of a distinct central carrier then a couple of > extra tick marks on the FreedDV GUI showing the edges of the signal, when > correctly tuned, as well as the centre would provide easier tuning of > signals using coherent psk modes. Note this is compounded by having an even > numbers of carriers where correct tuning is with the centre tick mark > between the 7th and 8th carriers,not aligned with a carrier. It is easy to > select the mid point between the wrong carrier pair. > > regards > > Peter VK5APR > > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > > Freetel-codec2 mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > > > ------------------------------------------------------------------------------ > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >
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