Let me "drill down" on this some more to find out the prevailing view...
Would those that object to Bonnie's idea, also object if the "wide" modes
were not part of the issue?. How about these objections if there was a
digital mode under 500 Hz that transmitted "unattended" under automatic
control?
Andy,
I petitioned the FCC for just that (inside the automatic "subbands"),
but it was rejected for the status quo. So-called "semiautomatic"
operations is permitted anywhere RTTY/data is permitted as long as the
bandwidth does not exceed 500 Hz. For fully automatic operations, the
automatic
: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com]on
Behalf Of Andy obrien
Sent: Thursday, April 08, 2010 7:50 AM
To: digitalradio@yahoogroups.com
Subject: [digitalradio] Unattended narrow mode transmission "protection"
Let me "drill down" on this some more to fin
I've seen (but not yet read) references to this in the SDR world.
Out of interest what would you have in mind?
Simon Brown, HB9DRV
http://sdr-radio.com
From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On
Behalf Of Dave AA6YQ
Busy frequency detection, however,
@yahoogroups.com
*Subject:* [digitalradio] Unattended narrow mode transmission "protection"
Let me "drill down" on this some more to find out the prevailing
view... Would those that object to Bonnie's idea, also object if the
"wide" modes were not part of the issu
it with you.
73,
Dave, AA6YQ
-Original Message-
From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com]on
Behalf Of Simon HB9DRV
Sent: Thursday, April 08, 2010 2:30 PM
To: digitalradio@yahoogroups.com
Subject: RE: [digitalradio] Unattended narrow mode tra
Myth?
Now there's a challenge - I must read all this SDR documentation to see just
what is defined as a busy frequency. At the moment I'm wading through 4,500
pages of DSP API's, there's something in there.
Simon Brown, HB9DRV
http://sdr-radio.com
From: digitalradio@yahoogroups.com [ma
Thanks, I'll leave Rick alone at the moment as I know he's busy.
Even if we were able to write a DLL which indicates that a frequency is in
use others may just decide that their traffic is more important and ignore
it.
Simon Brown, HB9DRV
http://sdr-radio.com
From: digitalradio@yahoogr
>>>AA6YQ comments below
-Original Message-
From: Jaak Hohensee [mailto:jaak.hohen...@eesti.ee]
Sent: Thursday, April 08, 2010 2:50 PM
To: digitalradio@yahoogroups.com
Cc: Dave AA6YQ
Subject: Re: [digitalradio] Unattended narrow mode transmission "protection"
Busy d
radio@yahoogroups.com
> *Cc:* Dave AA6YQ
> *Subject:* Re: [digitalradio] Unattended narrow mode transmission
> "protection"
>
> Busy detection in case of QRP Olivia 500/32 signals about snr -17dB is
> myth.
>
> >>>One could include an Olivia dec
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