Erik,
I'd put the blame on contest organizers who establish digital mode
(PSK) contest categories like 50W+.
If people come into digital modes up the ladder - asking someone
else - I can't believe most would learn that 50W+ is not being a good
neighbor. So what is the incentive? If a contest has
HFLINK Comments to ARRL on New Digi Protocols
=BACKGROUND=
On 22 Feb 2007, the ARRL announced that it seeked comments from
amateurs concerning development of an open-source, non-proprietary, data
communications protocol suitable for use by radio amateurs over HF
fading paths.
On 14 May 2007,
I like the last proposal. Did HFLINK get any response from the ARRL ?
Andy.
On 5/30/07, expeditionradio [EMAIL PROTECTED] wrote:
HFLINK Comments to ARRL on New Digi Protocols
=BACKGROUND=
On 22 Feb 2007, the ARRL announced that it seeked comments from
amateurs concerning development of
Andy wrote:
I like the last proposal.
Did HFLINK get any response from the ARRL ?
Hi Andy,
It may take time for ARRL to digest the HFLINK comment document.
It runs about 13 pages with all the tables and attachments.
Has anyone seen any comments from other hams or organizations yet?
I've been playing around with this on 20M.
The new version which does the decoding starting at 48 seconds is a
big help.
Of the the 25 contacts I've made all were clearly audible. All could
have been worked on CW with no difficulty. They could have been
worked on PSK or other such modes
I too have been perplexed why these modes that were developed for weak
signals on VHF and above and only have the most meager rudimentary
exchange, would have any value on HF, relative to already existing weak
signal modes. Perhaps because it seemed new, some focused on trying it
out?
What I
Absolutely spot on Erick. That is one reason that we try to tell new
people, on the digital bands, to start with as few watts as they can. There
is just no reason to run 100 watts ( and I expect some run more) on the PSK,
etc. digital modes. Everytime I say that though, someone jumps in the
The excitement of using the JT65 program on HF is NOT for those signals you
can clearly hear and probably operate with another mode, but for those times
that the propagation shows not to be there, you dont hear anything but
possibly a slight raise in static on a band, etc. Then you can put this
And to clarify ... exceeding necessary power is not the same as driving
the rig beyond linearity. It is the later that causes the wide traces
and multiple traces in most cases (sometimes could be due on the
receiving end with some lower quality sound cards).
If you are not triggering ALC, you
A perennially interesting topic. I hope the more experienced operators
here aren't sick to death of discussing it yet, and are willing to give
me some guidance.
Absolutely spot on Erick. That is one reason that we try to tell new
people, on the digital bands, to start with as few watts as they
I agree with your Rant! We have a local repeater that isn't toned, but
that's another Rant, that is constantly accessed by people who aren't
anywhere near the repeater! I'm talking a couple of hundred miles! These
people are accessing a local repeater on THEIR end! They only need a couple
Peter G. Viscarola wrote:
Let me hasten to add: I certainly DO NOT want to be an discourteous
operator, and I ONLY wish to operate my station in accordance with
best practices. Seriously.
So, how does one reconcile the oft-repeated mantra only run 25W or
40W with my experience? Am I
Danny Douglas wrote:
Absolutely spot on Erick. That is one reason that we try to tell new
people, on the digital bands, to start with as few watts as they can.
There is just no reason to run 100 watts ( and I expect some run
more) on the PSK, etc. digital modes. Everytime I say that
All good comments. I agree with Danny AND Rick. I think I can safely say
that this group is responsible for the sudden explosion of JT65A activity on
HF, remember it is just one month old as a common HF mode.
I'm perplexed too, I can find JT65A activity almost 24 hours per day but
rarely hear
Hey, Rick..
If all but two PSK signals are normal in display and two or three signals
suddenly
BLOOM with little ragged edges around their skirts on either side causing
them to
be really wider than other signals. wouldn't that pretty much eliminate the
soundcard
question?
I mean, if I'm
10 meters has been open almost every day for the last month, with MUFs often
reaching 6 meters (and sometimes as high as FMBC) somewhere in north america.
Given that the F2 MUF has been getting up to 15 meters pretty consistently, and
Es MUFs are hitting 100+ MHz, it stands to reason that, by
Let me play devil's advocate.
Regarding HF JT65A operation in practice in the presence of the usual
atmospherics.
If I can't hear a signal, chances are near zero that it will be found
tuning about the band by looking at the waterfalls. One almost needs
to sked such difficult paths. You have to
I have been running PSK for severial years, I run around 20 - 25 watts, with
the ALC just starting to move
My IMD report is around -32. and the fan runs very little
I have tried running 50 Watts and after a few min. the fan is running at
full speed and the radio is hot.
CW or voice are 50% duty
Has anyone seen any comments from other hams or organizations yet?
Bonnie KQ6XA
Yes, I immediately received comments from two officials at ARRL! Paul Rinaldo's
was:
To: Skip Teller ; [EMAIL PROTECTED]
Cc: Howard Teller ; Dennis Bodson
Sent: Tuesday, May 15, 2007 8:02 AM
Subject: Re: New HF
except for the obvious jerksit is mostly the contest sponsors fault.
iethis is a contest...do ANYTHING u wish to winuse ur amp if u
got it/forget courtesy/forget that there be some non contesters on the
band/etc.
its the sponsors RESPONSIBILITY to control the contest parameters.
but the nature of the WSJT software is that it will decode signls within a
600 Hz range. So, unlike many other modes, even if you are off frequency
and not able to hear anything...it will decode.
Andy
On 5/30/07, Brian A [EMAIL PROTECTED] wrote:
Let me play devil's advocate.
Regarding
There is no need to run 1000 watts is just plain wrong.
It depends upon what your're trying to do.
If you're trying to make a QSO with a station half a world away under
tough propogation conditions, it may indeed be necessary. 1000 watts
may be the minimum power required to make the contact.
I know I started this thread with the idea of dividing contest points by
power output, I did choose the word silly in the subject intentionally,
but, the real problem is that there is a ssb contesting mindset that is
filtering over into common usage.
Yesterday there was a station, over 800
Last year there was an OM about 6 miles from me who regularly ran 250W
on PSK. In QSO after QSO, he was told he had RF feedback in his signal,
he he pointedly ignored it all, saying he had a clean signal and wasn't
overdriving, and it was all just poor receiver front ends. It
wasn't...the RF
Sounds like time to advise the FCC of inteference from a poor signal. Yes -
it IS their job.
Danny Douglas N7DC
ex WN5QMX ET2US WA5UKR ET3USA
SV0WPP VS6DD N7DC/YV5 G5CTB all
DX 2-6 years each
.
QSL LOTW-buro- direct
As courtesy I upload to eQSL but if you
use that - also pls upload to LOTW
Hi,
The appeal of JT65 is multi-faceted...works great deep into the noise
so I can work stations as meager as more own at some distance. Also
the freq tolerance, as you mentioned.
It is automated so a double right click on another call sets things
in motion - sit back and watch!
Socially it
I often will tune across the bands, starting with 6 meters, moving on
down to see what is happening. You are right that 10 meters can be open
with Es and there are some signals on 12 meters which could be F
propagation or Es. Mostly the signals have been very weak and can be DX.
I have heard
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