Julian,
The "other side of the coin" is that we must share frequencies (because
there is limited space), so in order to do that, it is necessary to be
able to understand a request to QSY or a QRL. When there was only CW and
phone, this was always possible, but with digital modes, if you do not
decode a request in a different mode than you are using, you are unable
to share. It helps to use RSID or operate in a place where others are
using the same mode.
73, Skip KH6TY
On 7/14/2010 4:37 AM, g4ilo wrote:
--- In digitalradio@yahoogroups.com
<mailto:digitalradio%40yahoogroups.com>, "J. Moen" <j...@...> wrote:
>
> I think if 3 kHz SSB is ok, that 2.25 kHz modes (ROS as an example)
should be ok, as long as the frequencies chosen are prudent for the
band and time of time.
I agree, if people had more flexibility as to where to operate it
would be less of a problem. This is mainly the fault with band
planning (designed, as someone else said, in the days when the only
digital mode was RTTY) but also due to the fact that frequencies for
ROS operation were specified rather than allowing people to work
wherever they find a clear spot.
Although not the same issue as the legality of spread spectrum in the
US it is the same kind of issue as I believe it is the case that you
are not free to use digital modes outside the allocated digital sub
bands whereas there is nothing to actually prevent anyone in the rest
of the world from finding a quiet spot in the SSB sector to conduct
their weak signal experiments using wide band modes as the band plans
are only a "gentleman's agreement."
Julian, G4ILO
