Hi Tony and group members,
Based on the use (or non use) of ARQ modes for general ham use, suggests
to me that they are going to be primarily used for messaging. This is
something that we must have for public service/emergency communications,
but there are relatively few who are oriented
While I have seen how well ALE 400 works, I am not convinced that it
is worth the effort to invest in activity due to the lack of other
hams using the mode. While ALE400 make sense to me, I can't see hams,
en masse , switching to it. I still think that a better option would
be the increased
Users on now:
DK1BX - K0ABC - K3UK - KB3CS - N7RP - SM3CCM - UA0BA - UA4HBW - W0FVR
- W2FCP - W4DKS - W9FF - YB4IR
Andy K3UK
I wonder what kind of investment is required.
It has as many points as possible in common with sound card modes and
only requires MultiPSK as terminal program.
If I am not asking for a comparison between apples and oranges (I am not
entirely convinced right now... 8-) ), maybe Tony could
Andy wrote:
. I still think that a better option would
be the increased development of NBEMS PSK and MFSK with ARQ as
implemented in FLDIGI. While perhaps not as robust as ALE 400 FAE ,
it is far more likely to be used by hams if there is more publicity
about NBEMS.
I always look
John,
ALE400 is not the best mode for this, not because it is a poor mode, but
because the user interface is very difficult to use and has turned
off many
potential operators.
Is it difficult to use? I have honestly not found this to be true. I
agree it is very different than what
Hello to all,
About S/N here are my measures:
Lowest S/N (125 bauds ARQ FAE in ALE): - 6.5 dB(- 8.5 dB with many
repetitions)
Lowest S/N (50 bauds ARQ FAE in ALE400): - 11.5 dB(- 13.5 dB with many
repetitions)
The tests have been done with 30 characters message. The Tony's tests, as
far as
The RF transmitted signal changes polarization repeatedly as it is refracted
between the ionosphere and ground/ocean surface. A horizontally polarized
signal radiated from a dipole can arrive at the receiver end with a
polarization that is horizontal, vertical and even elliptical.
Therefore
Hello all!
Newbie to the group, and to HF RTTY as well, and have a question...
My equipment is an Icom 746 Pro interfaced with a Kantronics KAM+. The
terminal software is XPWare.
I'm an old school packeteer, so I know I have every thing installed
correctly (it works fine on the VHF side) and I
Almost certainly you are in the wrong setting and thus not decoding. If your
rig is in USB, try changing it to LSB. Alternatively, if you software has a
normal and reverse setting (or inverse) toggle those settings and you
should be all set
Andy K3UK
--- In digitalradio@yahoogroups.com,
Try reversing the polarity, or switch to LSB.
Bob, W5XR
From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On
Behalf Of Christopher K. Greenhalgh
Sent: Wednesday, May 27, 2009 3:29 PM
To: digitalradio@yahoogroups.com
Subject: [digitalradio] HF RTTY help
Hello
--- On Wed, 5/27/09, Christopher K. Greenhalgh ch...@n8wct.com wrote:
From: Christopher K. Greenhalgh ch...@n8wct.com
Subject: [digitalradio] HF RTTY help
To: digitalradio@yahoogroups.com
Date: Wednesday, May 27, 2009, 5:29 PM
Hello all!
Newbie to the group, and to HF RTTY as well, and
--- In digitalradio@yahoogroups.com, John Bradley jbrad...@... wrote:
Hey man you are preaching to the choir!!! ALE400 is a great mode, even at
higher latitudes such as I am.
Now if we can only convince people to give it a try.
John
VE5MU
Echo, preaching to the choir!
I
With any new mode or system, I tend to factor it with a view toward
public service. But that does not mean it should not be used for what
the majority of hams use day to day. Anything you are familiar with and
use regularly will have much more value than something that is only used
you are right I do like multipsk and particularly ALE400. Works well in to
the noise .
I don't find it hard to use, but I have spent some time using the software
and am not intimidated by the user interface. When I try to encourage others
to try it out , their first reaction is that the
I'll agree with John, while many here will find ALE400 easy to
tackle, many average hams will be intimidated by an unfamiliar
process. That is why Skip Teller's concepts behind NBEMS are good,
using mode that many hams use everyday.
Andy K3UK
On Wed, May 27, 2009 at 10:40 PM, John Bradley
--- In digitalradio@yahoogroups.com, Andy obrien k3uka...@... wrote:
I'll agree with John, while many here will find ALE400 easy to
tackle, many average hams will be intimidated by an unfamiliar
process. That is why Skip Teller's concepts behind NBEMS are good,
using mode that many hams use
I live at a higher latitude than many folks in the US and find that PSK is
susceptible to aurora flutter/multipath more often than most modes.
There are time up here that nothing will decode PSK despite the fact the
band is open and active. I'm not technically competent enough to say
why, but
I find Multipsk easy to use , although ALE400 is more complicated than
other modes in Multipsk. However, many hams that I introduce to
digital modes , via demos, are taken aback by Multipsk, they find it
too intimidating. FL-digi seems to be gaining ground because it is
perceived as easier to
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