MT63 is PSK, and if you go to this link
http://f1ult.free.fr/DIGIMODES/MULTIPSK/MT63_en.htm you can see how the
carriers are fixed in frequency and not random in frequency. In fact,
the description of MT63 is, DBPSK on 64 carrier tones. The tones are
separated by 7.81 Hz for the 500 Hz
Subject: Re: [digitalradio] mt63
On 5/26/2010 9:41 PM, Hal Stang wrote:
If so What frequencies do they normally hang out on -80/40/20 meters?
Hal
Hal,
Seems the majority of MT63 activity is on 20 meters - 14108.0 / 14109.0. It
is sparse though. I do see some using
Is there any activity on mt63 on 20 meters or is it far and few between..
POB/K8LEN
maybe one or two stations per day, tops.
On Wed, May 26, 2010 at 8:07 PM, obie47165 obie47...@yahoo.com wrote:
Is there any activity on mt63 on 20 meters or is it far and few between..
POB/K8LEN
If so What frequencies do they normally hang out on -80/40/20 meters?
Hal
- Original Message -
From: obie47165
To: digitalradio@yahoogroups.com
Sent: Wednesday, May 26, 2010 8:07 PM
Subject: [digitalradio] mt63
Is there any activity on mt63 on 20 meters or is it far
Lately I've been playing around with MT63 at the 500 hz bandwidth. It was
just about the only digital mode that I had not experimented with since
getting on the digital modes in 2003.
I've made some contacts around 3584 kc and 14074 kc. The band plans that I
see for 20 meters on the internet
Lately I've been playing around with MT63 at the 500 hz bandwidth. It was
just about the only digital mode that I had not experimented with since
getting on the digital modes in 2003.
I've made some contacts around 3584 kc and 14074 kc. The band plans that I
see for 20 meters on the internet
I have found it only around 14,109.
But like many many modes - it's not used much.
John, W0JAB
At 03:37 PM 2/19/2010, you wrote:
Lately I've been playing around with MT63 at the 500 hz bandwidth. It was
just about the only digital mode that I had not experimented with since
getting on the
An excerpt from Pawel Jalocha's source code distribution:
The MT63 modem is intended for amateur radio as a conversation (RTTY like) mode
where one station transmits and one or more other stations can listen. In
short, the modem transmits 64 tones in its 1 kHz bandwidth: the audio range for
the
on the ham bands, especially
since most of us can't type that fast ; ). They are fun to experiment with
though.
Tony -K2MO
- Original Message -
From: Cortland Richmond k...@earthlink.net
To: digitalradio@yahoogroups.com
Sent: Monday, March 23, 2009 7:22 PM
Subject: RE: [digitalradio] MT63
All,
Had several QSO's with first-time MT63 OPs this week. Some had a difficulty
getting used to the software settings so I thought I'd pass along a few tips.
Peak Power:
Peak power will be substantially higher than the average with this mode so it's
best to use the software's tune feature
I use a PEP output meter and back off power a little to avoid clipping.
I think that works too for people that know their way around.
73,
Jose, CO2JA
---
Tony escribió:
All,
Had several QSO's with first-time MT63 OPs this week.
Some had a difficulty getting used to the software
@yahoogroups.com
Sent: 3/23/2009 4:31:02 PM
Subject: [digitalradio] MT63 Operating Tips
All,
Had several QSO's with first-time MT63 OPs this week. Some had a difficulty
getting used to the software settings so I thought I'd pass along a few tips.
Peak Power:
Peak power will be substantially higher
All,
Uploaded a short video of the MT63 mode in action. The video shows how robust
the mode can be when faced with heavy QRM. I was monitoring EA3AQS at the time
when a Pactor station popped up in the middle of his signal.
See MT63_Pactor_QRM_20M.wmv in the digital radio file section.
All,
I'll be QRV on MT63 starting 2200z. Should be around for an hour or two.
Frequency -- 14106.0 USB
Mode -- 1K / long Interleave
Tony, K2MO
Sitting on 14106.0 1Kc long
: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW
Hi Tony.have you tried fldigi...it is available from
http://w1hkj.com in both Windows XP and Vista as well as Linux.
it has MT63 500,1000 and 2000
73 David VK4BDJ
Tony wrote:
All,
There seems to be some difference between Mutlipsk
unlike PSK31 that mostly utilize the same 'core, other modes my well
require comparison tests to determine which is consistently better.
Andy K3UK
Very interesting Andy. Patrick (F6CTE) motioned that sound card sampling
accuracy plays a role with MT63.
Tony, K2MO
Rick,
When I have done some crude comparisons with actual off air tests
between different programs, there is usually not a lot of difference
I'm interested in your test method.
Tony, K2MO
: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW
Hello Tony,
About Multipsk, could you first (if not done) the MT63 sampling calibration by
clicking on Sampling freq. and start the automatic calibration.
Note: in Multipsk there is a double correction:
* determination of the sampling frequency offset
: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW
Patrick,
The sound card was already calibrated, but the offsets were not locked.
Locking them seems to have made a difference. I repeated the same tests and
decoding did improve with Multipsk (see below).
As for one program having an advantage over
All,
There seems to be some difference between Mutlipsk, MixW and IZ8BLY's software
when it comes to decoding MT63. I ran all three programs simultaneously with a
path simulator in line and the SNR set above the decode threshold.
The results were the same whether I ran the programs one at a
better (I wrote an independant MT63
decoding code and I don't know the way the original soft decodes).
73
Patrick
- Original Message -
From: Tony
To: digitalradio@yahoogroups.com
Sent: Saturday, September 27, 2008 12:35 AM
Subject: [digitalradio] MT63 -- Mutlipsk, IZ8BLY
Hi Tony.have you tried fldigi...it is available from
http://w1hkj.com in both Windows XP and Vista as well as Linux.
it has MT63 500,1000 and 2000
73 David VK4BDJ
Tony wrote:
All,
There seems to be some difference between Mutlipsk, MixW and IZ8BLY's
software when it comes
It would also be very interesting to see if the improved MFSK modes in
fldigi works better than in other software, especially when affected by
lightning static. My informal tests seemed to suggest not much
difference, however, if there was any difference, it might suggest that
Multipsk was
I have NO clue about this but... Simon Brown shared some interesting
findings about his experience in programming Olivia in to DM780.
Some of the existing applications that have Olivia in them did not
entirely implement Olivia in a manner than Simon thought was
consistent with Pavel's original
All,
I'll be QRV on 14106.0 MT63 / 1K this evening at 2200z.
Tony, K2MO
Of Tony
Sent: Thursday, September 25, 2008 3:23 PM
To: digitalradio@yahoogroups.com
Subject: [digitalradio] MT63 Sked
All,
I'll be QRV on 14106.0 MT63 / 1K this evening at 2200z.
Tony, K2MO
Thanks for the return comments, Tony, and especially all your work in
helping us understand these modes better. I have been looking at the
data and comparing baud rate which directly relates to the length of
symbol and I suspect that many of what we thought of as the most
sensitive modes may,
Rick W wrote:
I don't know enough about ionospheric disturbances to know if you can
only have Doppler (such as polar flutter) without having multipath at
the same time.
The only way that comes to my mind that you can get rid of multipath is
by just receiving a single ray. To achieve it, a
Tony, last week there was MT63 activity on 14109 but 14106 also seems
to have been used. Andy K3UK
Thanks for passing that along Andy. Spot history does seem to be a pretty good
indicator of mode activity. I guess it's safe to assume that only a small
percentage of MT63 activity gets spotted
today of some transmissions copied on
EasyPal from the US so maybe things will look up soon
Regards
Les VK2DSG
From: Tony
Sent: Saturday, September 13, 2008 7:03 PM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] MT63 freq ?
John,
14,109.5 still being used for MT63?
Activity
Indeed it has, but it was a great 18 years!
Tom
K6TGT
Tom, good seeing you here. It has been a long time since Wildcat BBS
days.
David
KD4NUE
: [digitalradio] MT63 freq ?
14,109.5 still being used for MT63?
:37 PM
Subject: [digitalradio] MT63 freq ?
14,109.5 still being used for MT63?
--
Andy K3UK
of some transmissions copied on
EasyPal from the US so maybe things will look up soon
Regards
Les VK2DSG
From: Tony
Sent: Saturday, September 13, 2008 7:03 PM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] MT63 freq ?
John,
14,109.5 still being used for MT63?
Activity is not what
The reason that I use various modes is to discover those that work the
best for most conditions on a given band and maintain a reasonable
throughput for a specific use. The MT-63 mode seems well suited for
moderate speed (50 to 200 wpm) under conditions with periodic
interference where a part
Good deal Tony.
I will be in out of the shack all weekend but can park the rig on
say 14,106.00 1KZ long and see what happens.
Trying to get ready for a DOWNPOUR from IKE.
They said on last nights news that we very well may
get 6.5 + inches of rain.
John, W0JAB
I think you will find more activity than most people suspect. Every
Tuesday and Thursday the Mississippi Digital Net meets passing practice
traffic and real traffic. It meets at 1900 local. I will have to post
the freqs on another message. There is also a Michigan net, and one
from
-mail or any documents attached hereto is
prohibited.
_
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Don Rand
Sent: Saturday, September 13, 2008 4:38 PM
To: digitalradio@yahoogroups.com
Subject: [digitalradio] MT63
I think you will find more activity than most
Subject: [digitalradio] MT63
I think you will find more activity than most people suspect. Every
Tuesday and Thursday the Mississippi Digital Net meets passing practice
traffic and real traffic. It meets at 1900 local. I will have to post
the freqs on another message. There is also a Michigan net
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED]
On Behalf Of Tom Tcimpidis via PPC
Sent: Saturday, September 13, 2008 12:51 PM
To: digitalradio@yahoogroups.com
Subject: RE: [digitalradio] MT63
As does the USCG AUX HF Contigency Comms Network.
Tom, k6tgt
k6cyc sysop
14,109.5 still being used for MT63?
I need help finding an MT63 QSO. Can anyone direct me to a time
and frequency? (I don't belong to MARS but can receive all
frequencies.)
Thanks and 73, Fred AK5U
I know just about everybody does MT63 on a soundcard. I've done MT63
on a soundcard.
The question is: Does anybody know of any hardware (modem type)
device out there that does MT63? No soundcard.
Dave
K7UXO
To answer that in one word, no.
Ain't going to happen.
The reason so so many use the sound card modes right now
is because they don't have to *buy* some black box to do it.
John, W0JAB
At 08:49 PM 1/30/2008, you wrote:
I know just about everybody does MT63 on a soundcard. I've done MT63
on a
Subject: [digitalradio] MT63 Hardware Question
I know just about everybody does MT63 on a soundcard. I've done MT63
on a soundcard.
The question is: Does anybody know of any hardware (modem type)
device out there that does MT63? No soundcard.
Dave
K7UXO
Dave
Season's Greetings
How about at 0230 for six days begging tomorrow at
7034.8 KHz long path 500/16 MT63
73
Omar YK1AO
- Original Message -
From:
Dave
To: digitalradio@yahoogroups.com
Sent: Thursday, December 29, 2005 9:04
PM
Subject: [digitalradio
Dave,
I would call CQ on 14109.5 kHz. The normal operating mode is 1 KHz
bandwidth and long interleave. I will hang out there today and listen for you.
73,
Mark N5RFX
At 01:04 PM 12/29/2005, you wrote:
I am looking for some folks that work MT63. What are the popular
frequencies (I have a
SSB carrier freq or center of MT63 signal = 14109.5 ?
Les K1YCM/3
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Mark Miller
Sent: Friday, December 30, 2005 6:24 AM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] MT63
Dave
: Friday, December 30, 2005 6:24 AM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] MT63
Dave,
I would call CQ on 14109.5 kHz. The normal operating mode is 1 KHz
bandwidth and long interleave. I will hang out there today and listen for
you.
73,
Need a Digital mode QSO? Connect
I am looking for some folks that work MT63. What are the popular
frequencies (I have a General ticket) and times of day? Are there any
nets?
Thanks
Dave, K7PDW
Yahoo! Groups Sponsor ~--
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All:
Available this eveningforMT63 / Olivia
skeds --Friday nighteast coast time (Saturday UTC).
73, Tony KT2Q
The K3UK DIGITAL MODES SPOTTING CLUSTER AT telnet://208.15.25.196/
Yahoo! Groups Links
To visit your group on the web, go
All:
Available this eveningforMT63 / Olivia
skeds starting around 09:00pm east coast time Thursday night (01:00Z Friday UTC time ).
73, Tony KT2Q
The K3UK DIGITAL MODES SPOTTING CLUSTER AT telnet://208.15.25.196/
Yahoo! Groups Links
To visit your group on the web, go
All:
At the keys as of 02:00z -- QRV on 14109.5 MT63. Can QSY to 80, 40 and 30
meters.
73 Tony KT2Q
The K3UK DIGITAL MODES SPOTTING CLUSTER AT telnet://208.15.25.196/
Yahoo! Groups Links
* To visit your group on the web, go to:
http://groups.yahoo.com/group/digitalradio/
* To
--- In digitalradio@yahoogroups.com, KT2Q [EMAIL PROTECTED] wrote:
All:
At the keys as of 02:00z -- QRV on 14109.5 MT63. Can QSY to 80, 40
and 30
meters.
73 Tony KT2Q
I'm on 7090 now
The K3UK DIGITAL MODES SPOTTING CLUSTER AT telnet://208.15.25.196/
Yahoo! Groups Links
* To
Hello digi op's,
20.05.2005 1800-2400 UTC you have good chance to get more QSO's on
this very nice but exotic mode - MT63
working conditions - USB 500Hz long interleave on all (10-160m) bands
exclude WARC.
Hope to meet you!
Full info about Pentathlon and Digital QSO Club membership
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