Interesting.
I am certainly no expert on DSP, but what about the idea of a scheme
similar to MT63 with something like 12 channels of PSK250, each of which
sending duplicate data in different time domains. This would put the
total signal width well under 3.5k and would easily pass over standard
FM transceivers and repeaters.
Then the other question would be what character coding would be best.
The problem, I would see, with running a straight PSK3000 signal would
be that the slightest static crash at high speed would probably take out
a few sentences. We put the limit on our psk operations with PSK250 for
that reason.
-Dave, KB3FXI
On 9/15/2010 5:22 PM, Pavel Milanes Costa wrote:
Hi my friends,
Here in Camaguey Cuba we are having great fun with fldigi+flarq (3.21.0AK,
on linux and windows) in 2m VHF freqs, but I was inquired by a ham friend
about a custom PSK mode inspired for the variety of PSK modes (31, 63,
125, 250, etc, for a faster file transfers with flarq)
Or in defect of that a preset with PSK-1000, PSK-2000 or even PSK-3000?
For transfering files/chating, etc in a local city over a clean chanel on
VHF, the S/N are great enough for test/try a more speed full mode.
I think: why not? Even with other mode, not has to be PSK...
In searching for a more faster transfers on a clean VHF channels what mode
do you recommend?
There are a software, method, technical reason or a legal reason for not
developing a custom settings or more speed full preset for PSK mode for
use in VHF localy?
This is only a question/suggestion, I wait for your answer my friends.
--
CO7WT
Ing. Pavel Milanes Costa
=======================================================================
Este mensaje ha sido enviado mediante el servicio de correo electronico que
ofrece la Federacion de Radioaficionados de Cuba a sus miembros para respaldar
el cumplimiento de los objetivos de la organizacion y su politica informativa.
La persona que envia este correo asume el compromiso de usar el servicio a
tales fines y cumplir con las regulaciones establecidas.
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