The fact that QRM is unavoidable in some situations does not relieve
us of the responsibility to prevent QRM when we can, Walt. An
unattended station that transmits on a busy frequency is generating
preventable QRM. Technology exists that would prevent this; the
failure of HF message passing systems to adopt this technology is
inexcusable.
73,
Dave, AA6YQ
--- In [email protected], "DuBose Walt Civ AETC CONS/LGCA"
<[EMAIL PROTECTED]> wrote:
>
> Well the point in the first place was concerning the "hidden
transmitter".
>
> My point is, and I think you have made it, is that despite
everything that we may do in software and operating procedures, if
you are using HF, QRM is going to happen...QRM happens.
>
> HF, love it or leave it and go play on a 2M repeater. Hi Hi.
>
> 73,
>
> Walt/K5YFW
>
> -----Original Message-----
> From: [email protected]
> [mailto:[EMAIL PROTECTED] Behalf Of Danny Douglas
> Sent: Wednesday, December 13, 2006 12:52 PM
> To: [email protected]
> Subject: Re: [digitalradio] Re: Dec 15?
>
>
> OK - but only if C and D were in QSO first. But as I say, if A and
B dont
> hear anyone else, the only thing that can happen is for C and D to
live with
> it, or QSY. It all neither here nor there, it comes down to the
golden rule
> "Do unto others as you would have them do unto you" And if
automatic
> stations want to play that game, there are plenty of people out
there with
> big signals that will.
>
>
> Danny Douglas N7DC
> ex WN5QMX ET2US WA5UKR ET3USA
> SV0WPP VS6DD N7DC/YV5 G5CTB all
> DX 2-6 years each
> .
> QSL LOTW-buro- direct
> As courtesty I upload to eQSL but if you
> use that - also pls upload to LOTW
> or hard card.
>
> moderator [EMAIL PROTECTED]
> ----- Original Message -----
> From: "DuBose Walt Civ AETC CONS/LGCA" <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Wednesday, December 13, 2006 1:30 PM
> Subject: RE: [digitalradio] Re: Dec 15?
>
>
> > A & B hear each other but dont' hear C & D. But C hears either
or both A
> and B.
> >
> > If C is receiving D, then A or B is QRMing C.
> >
> > Walt/K5YFW
> >
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[EMAIL PROTECTED] Behalf Of Danny Douglas
> > Sent: Wednesday, December 13, 2006 12:22 PM
> > To: [email protected]
> > Subject: Re: [digitalradio] Re: Dec 15?
> >
> >
> > HMMM By whom is C being QRMd. You didnt say who he is hearing as
QRM. I
> am
> > assuming that C is hearing either A or B or even both? In this
case, if A
> > and B were already in QSO, then C and D should QSY to start their
QSO
> > elsewhere.
> >
> > If the C and D QSO was already underway, and A and B started up,
and they
> > were not hearing either C or D (not probable as usually prop is
two-way if
> > it is strong enough for QRM) then C and D would either put up
with it, or
> > move since under this condition, they cant tell the other pair
that the
> freq
> > is in use.
> >
> > It is prudent for both parties, starting a QSO to insure that
neither of
> > them is intefering with an ongoing QSO, and by both checking to
see (both
> > automatic stations having the capability) if the freq was QRL -
it would
> > avoid inteference to others.
> >
> >
> > Danny Douglas N7DC
> > ex WN5QMX ET2US WA5UKR ET3USA
> > SV0WPP VS6DD N7DC/YV5 G5CTB all
> > DX 2-6 years each
> > .
> > QSL LOTW-buro- direct
> > As courtesty I upload to eQSL but if you
> > use that - also pls upload to LOTW
> > or hard card.
> >
> > moderator [EMAIL PROTECTED]
> > ----- Original Message -----
> > From: "DuBose Walt Civ AETC CONS/LGCA" <[EMAIL PROTECTED]>
> > To: <[email protected]>
> > Sent: Wednesday, December 13, 2006 12:56 PM
> > Subject: RE: [digitalradio] Re: Dec 15?
> >
> >
> > > If A and B can hear each other but can't hear C or D then if A
or B
> > transmits and C is receiving D, then C is QRMed and can't copy D.
> > >
> > > This is something that happens quite often on HF and I don't
think that
> > any amount of coding willremedy this problem.
> > >
> > > Walt/K5YFW
> > >
> > >
> >
> >
> >
> > Connect to telnet://cluster.dynalias.org a single node
spotting/alert
> system dedicated to digital and CW QSOs.
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> > Connect to telnet://cluster.dynalias.org a single node
spotting/alert
> system dedicated to digital and CW QSOs.
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> > --
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.5.432 / Virus Database: 268.15.18/584 - Release Date:
> 12/12/2006 11:17 PM
> >
> >
>
>
>
> Connect to telnet://cluster.dynalias.org a single node
spotting/alert system dedicated to digital and CW QSOs.
>
>
> Yahoo! Groups Links
>
