Dave,

I will pick on your message, but what really triggered my comment is
my perception of the misunderstanding between "semi-automtic
operation" and "control".  Too many comments here seem to display an
acceptance of a relationship between these terms.

Semi-automatic operation may a good term to use when describing a
connection made from a manually controlled station to an automatically
controlled station.  However, it does not follow that the manually
controlled station exerts any "CONTROL" over the automatically
controlled station, at least not as far as FCC regulations are concerned!

The Winlink 2000 folks coined the term 'semi-automatic' and their
definition implies that the manually controlled station exerts a type
of "control" over the automatically controlled station such that
interference can be reduced or even eliminated.

This is not true and the FCC should be made aware of this in your
comments on the new bandplan rule making processes.

A manually controlled station merely 'interrogates' an automatically
controlled station.  In no shape or fashion does this place the
manually controlled station 'in control' of the other station. 
Consequently, the manually controlled station CAN NOT insure that the
automatically controlled station does not interfere with stations
previously using the frequency.  Everyone needs to read the
regulations concerning 'control operator' of a station and make sure
they understand them.

Let me say it again, interrogating an automatically controlled station
DOES NOT place you in control of that station!

In fact, the term 'semi-automatic connection' is a misnomer to begin
with.  Once one has listened to a frequency and found it clear,
'control' of the station is turned over to the software making the
station, in essence, an automatically controlled station.  Winlink
2000 does a good job of instructing their users to listen first
(whether this is followed is a another question), however, they NEVER
mention that the user should keep the speaker on to determine if
someone is trying to respond that the frequency is already busy.  In
other words, the station is operating in auto fashion and what you
really have is an auto-auto connection.

This is why the sub-bands should be kept in regulations at this time.



--- In digitalradio@yahoogroups.com, "Dave Bernstein" <[EMAIL PROTECTED]> wrote:
>
> The ARRL's proposal, if adopted, will allow the broad deployment of 
> semi-automatic operation without any requirement that semi-automatic 
> stations implement "listen before transmit". This is clearly a fatal 
> flaw. We must ensure that the FCC understands this flaw, and rejects 
> the ARRL proposal.








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