All,
Apologize the cross-post, but this problem may cross several lines.
Before my reinstall of WinXP this past weekend, I was using WSJT to operate
JT65, the logbook in HRD/DM780 to log the exchanges, and HRD Utilities to
upload automatically to LoTW. I had no problems with this, but
I apologize for this, but I found the solution. After Googling this for
sometime and finally asking the group, the very next link I clicked on had the
answer.
If anyone else is having this problem, simply google ARRL Cert.tq6 and download
the file (https://p1k.arrl.org/lotw/config.tq6).
Spectrum efficiency must be measured in time necessary to get the info across,
length of info transferred, and bandwidth.
((characters/second)/ bandwidth) or characters/(seconds * bandwidth).
The bandwidth includes a certain guard band(minimum distance between 2
different
signals), which for
But if the path S/N is so poor that you cannot get the message across at
all, isn't the spectrum efficiency zero? ;-)
73 - Skip KH6TY
Rein Couperus wrote:
Spectrum efficiency must be measured in time necessary to get the info
across,
length of info transferred, and bandwidth.
Good point. What you have defined , Rein,is the occupancy efficiency in
terms of time.. I was measuring efficiency in terms of bandwidth used.
Obviously the othe rmeasure is wether the message was deleivered. Using 5
watts for a 300-400 miles trasmission on 80M at night , PSK250 may have
needed
Hi Andy,
well, I don't agree... as soon as you talk efficiency, you have to define what
that means.
For me bandwidth efficiency is 3-dimensional, it defines how much information
can be
transferred within a certain time span, within a certain bandwidth.
JT65A works with 65 frequencies, which
Hi Andy,
I made mention of years ago via this forum that AQC-ALE is the the solution to
your desires in these areas and that is still true and the neew features I have
coded into PC-ALE and those that I am currntly working on will aid you in your
pursuits.
AQC-ALE ( which is only found in
I fully agree Steve, it sounds like the way to go. I only have 1.062H, will
have to check to see if I have the new features.
Andy K3UK
On Wed, Mar 24, 2010 at 6:07 PM, N2CKH n2...@morrisbb.net wrote:
Hi Andy,
I made mention of years ago via this forum that AQC-ALE is the the solution
to
I and many others will never touch ALE because of
just one woman.
It at this time has a bad name among many.
Thanks Andy,
And here I thought it was my superior receive capability :)
Actually that was about the limit of resolution as I had the multi decoder
spacing at 20 Hz.
73,
Bill N9DSJ
--- In digitalradio@yahoogroups.com, Andy obrien k3uka...@... wrote:
I know many are already aware of this,
Ditto
rgrds
Craig
kq6i
-Original Message-
From: John Becker, WØJAB [mailto:w0...@big-river.net]
Sent: Wednesday, March 24, 2010 4:58 PM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] Re: A new concept in digital mode
I and many others will never touch ALE because of
I think it's fair to discuss, which is to say question, whether
military standard ALE is the best thing to use on amateur
frequencies. It's good to make use of existing standards when
they fit the situation, but military radio is not amateur radio.
With our crowded bands, and with amateur radios
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