Simon,
When MT63 was "popular" it was because of the expectation that it was a good
mode for poor conditions and it was somewhat better than others for handling
QRM. It appeared to die because there was a lot of criticism of the
bandwidth it utilized. I rarely hear a signal these days but usuall
Simon Brown wrote:
>
> Question - what's so special about MT63 - where / when is it used?
> From what I read it's not so great for chit-chat.
>
> Simon Brown, HB9DRV
MT63 is an interesting mode. It has very rapid thruput, and is highly
resistant to QRM. Thus it actually is an excellent mode
> Question - what's so special about MT63 - where / when is it used?
>From my point of view, MT63 has high number of carriers, which implies
low crest factor - the effective transmitted power will be much lower
than of single tone mode like Olivia, if you make sure PA is not
overdriven by peaks w
A rookie question: What program let use Pactor 3.
Claudio-LU2VCD
2007/9/14, Patrick Novak <[EMAIL PROTECTED]>:
>
> Hi John,
>
> Ah... well the world is not fair...
>
> Anyway, any time you find the propagation to VK2 OK give me a call. I'd
> love to do Pactor 3 QSO keyboard to keyboard, haven'
Hi Claudio,
Although there are software versions of Pactor 1 (the original FSK mode
Pactor), they require using an Operating System that can control the
port more directly, e.g., MS-DOS running only the one program. A friend
of mine does this on an old computer and gets very good results that h
Hi Rick,
Take any non-GUI or even a GUI OS that has been tailored down for the
embedded application at hand that is running sufficient CPU/RAM and
you could implement a PI through PIII solution if SCS would allow it.
PII and PIII if fully documented could be done using a PC Sound
Device Modem
Vojtech Bubnik wrote:
>
> > Question - what's so special about MT63 - where / when is it used?
>
> > From my point of view, MT63 has high number of carriers, which
> > implies
> low crest factor - the effective transmitted power will be much lower
> than of single tone mode like Olivia, if you ma
Got you on the list Patrick.
In the late 70's early 80's I would work
a VK2 every night on Amtor along with G3RSP/MM
and others. Them was the days.
John
At 11:23 PM 9/13/2007, you wrote:
>Hi John,
>
>Ah... well the world is not fair...
>
>Anyway, any time you find the propagation to VK2 OK give m
I think MARS adopted it so it has some momentum there. Are they still
using it?
Leigh/WA5ZNU
On Fri, 14 Sep 2007 12:06 am, Simon Brown wrote:
> Question - what's so special about MT63 - where / when is it used? From
> what
> I read it's not so great for chit-chat.
>
> Simon Brown, HB9DRV
Hi Steve,
I don't see SCS holding anyone back from coming up with a similar system
tailor made for current computers. The reason you would want to do this
is to use the technologies that succeeded in working well and not
reinventing the wheel that sometimes seems to be happening with the
pleth
--- In digitalradio@yahoogroups.com, Rick <[EMAIL PROTECTED]> wrote:
[snip]
> - At least one person who actually maintains and deploys ALE in the
> military is not very impressed with it as there are problems with not
> working that well, particularly no having good throughput such as for
> mess
Hi Andy, and Group. I have been working on MT63, still a beginner. I am
using IZ8BLY ie MixW. you are right it is hard to find signals to copy.
I think I read some instructions that 10109.5 was a possibility, Have never
heard anything there. I am now monitoring 14077.5
Joe WB6AGR
Mod
Both, Navy Mars and Army Mars are using it.
Joe WB6AGR/AAT9EK
** See what's new at http://www.aol.com
Seems like a while back, 14.109.50 was the "suggested" MT63 frequency.
As for what's so great about it, I always thought it was a fun mode..so
different from everything else.As for speed, all modes can outrun the crap
out of my typing speed, (and just about everyone else's too) so I reall
Hi Rick,
I also feel the frustration of many modes that are not that different from
one another. My main interest is in digital messaging rather than digital
QSOs but a good waveform would be positive for both modes.
As you work on your research I would like to see you put it on my new web
site
Hello Votjech,
Yes you are right the crest factor in MT63 is very low (mean power/ crest power
= 0.1 (OFDM general problem) for 0.76 in Olivia...
Other problems: due to the big number of carriers (64) you need a good
calibration of the sound card. Otherwise, you decode nothing.
The minimum S/
I have never heard anything on 14,109.5 either
Joe
WB6AGR
** See what's new at http://www.aol.com
> Seems like a while back, 14.109.50 was the "suggested" MT63 frequency.
> 73 Buddy WB4M
Hi Buddy,
MT63 is an excellent mode, and it was a pioneer.
But, over the years, other methods have mostly eclipsed MT63 for ham
HF operation. MT63 activity died, and about the same time, ALE
activity in
Hi All
I have acquired a Tasco Telereader TNC-24MkII Allmode terminal, with no
software. Is there anyone in the group familiar with this unit that can help
me to find any software that supports it, or can advise how to set it up?
Can't even find it under the list of TNCs supported by AGWPE :-(
Th
Yep you are right...
The CONDX are so down now... the worst in my memory (I'm 62 and
licensed since 1968). I get the occasional break on 30 m on CW in your
late evening.
We may be lucky one day
73
Patrick
John Becker, WØJAB wrote:
>
> Got you on the list Patrick.
> In the late 70's early
Hi Demetre,
I was not suggesting that hams would be using $5000 modems. I won't even
buy the "relatively" low cost SCS modem for ~ $1000.
The reason of course, is that we now have amateur sound card modes, and
are likely to have more of them in the future, and they are for the most
part at no
It may hold the link, but thruput goes wy down
Jose, CO2JA
Rick wrote:
> Does Pactor 3 really work well at -18 dB? I would like to see some
> tests that show this, but have not found much on the internet. I
> understand that some hams compared Clover products and presented the
JAS-1 was the first japanese amateur radio satellite that had a
particular digital mode.
Jose, CO2JA
---
Barry Murrell wrote:
> Hi All
>
> I have acquired a Tasco Telereader TNC-24MkII Allmode terminal, with
> no software. Is there anyone in the group familiar with this unit
> that can hel
Buddy, I am not that great a typist either. But if I have
message to transfer the speed is needed. MT63 can
really go if you use it at 2kHz bandwidth.
73 Howard K5HB
- Original Message
From: F.R. Ashley <[EMAIL PROTECTED]>
To: digitalradio@yahoogroups.com
Sent: Friday, September 14,
Hello all,
I have been watching this thread with interest, as these modes have
become my favorite. I am very interested in their promotion and
increasing the use and awareness of Olivia (I'm club member #028),
MFSK16/8, Feld-Hell (Club member #781), Domino, Throb and the more
esoteric PSK vari
I'm very much a newcomer to digital modes, so please pardon this
question. I'm interested in designing a QRP rig that uses digital modes
for portable operation in the field, much like the KX-1 and ATS do for
CW. Other that PSK31, which digital modes are best suited for this type
of operation?
Andrew,
It would appear to be a maritime system, improving on the current services they
already use.
Guess it would be cheaper then using the satellite service.
I can't read German, but I did see Pactor in there.
O - I wish I had one of those antenna systems they showed in their photo.
Kevin -
Leigh L Klotz, Jr. wrote:
> I think MARS adopted it so it has some momentum there. Are they still
> using it?
Increasingly so. Since most traffic is pre-prepared the fact that
keyboard interactive has some lag isn't considered a big deal. The
region six AF digital net is pretty much an all MT63
Olivia.
Andy K3UK
On 9/14/07, newdendrite <[EMAIL PROTECTED]> wrote:
>
> I'm very much a newcomer to digital modes, so please pardon this
> question. I'm interested in designing a QRP rig that uses digital
> modes for portable operation in the field, much like the KX-1 and ATS
> do for CW. Othe
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