Re: [digitalradio] MFTTY: It works
Rick, You are correct regarding bandwidth, there was several discussions awhile back regarding the 30 meter band where some argued that we were restricted to 500Hz, I didn't subscribe to this and I thought 1Khz was acceptable. Anyway my thoughts are based on what space is available so as not to cause QRM to other users on the band, what I see from the MFTTY widths when selecting a mode is anywhere from narrow (29Hz) to (986Hz) plus a S/N ratio of -27 to 8db. The normal mode (speed) provides 75wpm at 936Hz (bw) and a 0db SNR were as the 1/2 speed provides a 38wpm at 468Hz (bw) and a -3db SNR. Frankly I believe that Olivia and Thor will accomplish the needs of digital operators better. Thanks for your input I learn something every day. Happy Holidays and a safe and wonderful 2009 to you and the family 73 de Ron W4LDE Rick W wrote: Ron, Although I am not strongly supportive of wide bandwidth modes in what has historically been the narrower portions of the HF bands, I will use 1000 or even 2000 Hz modes under conditions where a given band is almost devoid of signals, or under severe conditions. This is not a criticism, but where do you find any reference to an allowed bandwidth? There are no specific HF digital frequencies that I am aware of here in the U.S.It is true that on the HF bands we have RTTY/Data portions and phone/image portions. Digital modes can be used throughout the bands based upon the type of information to be transmitted. (The third symbol in the ITU Classifications of Emissions). The one change in the past few years was allowing image (fax), whether digital or analog, in the RTTY/Data portions of the HF bands, providing the emission is 500 Hz or narrower. But non-phone emissions have no specific bandwidth limit except that they may not exceed the bandwidth of a communications quality phone emission of the same modulation type. There is a special restriction for stations in automatic operation where there can be a 500 Hz limitation. But there is no such limitation with operators communicating from their control points. Finally, there are band plans from various groups, particularly the IARU and while they appear at times to not properly reflect current actual operating practices, they can be used as a guide. 73, Rick, KV9U w4lde wrote: Russell, Thanks for the #1 MFTTY QSO on 30 meters. I would suggest that since the stated Bandwidth for 1/2 speed is 468Hz that probably that keeps us inside the 500Hz allowed bandwidth for most of the digital frequencies.
[digitalradio] MFTTY: It works
I had a QSO with NC5O in texas on 10135.5 USB. It seems to do fairly well with moderate signals. CQ CQ tesde k3uk k3uk K3uk CQ CQ CQ test de k3uk k3uk K3uk £´k3uk hi there de nc5o nc50 hi nc50 hi from Andy in NY log o with w4nice to c u hr nc5o Nc5O de k3uk good signal here in NY state over... e prograVVsowork oFrus to useare he in texatday d Glad I am making it to texas, still trying to figure this out ...BTU de K3UK hy holiday to uand tnx‡Vqso I am loseinyou now V6Vó¦ 73 and happy holidays to u nc5o de k3uk sk Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: mailto:digitalradio-dig...@yahoogroups.com mailto:digitalradio-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: digitalradio-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [digitalradio] MFTTY: It works Tnx to all for QSO
Andy tnx for thw qso, I had a nice qso with Ron W4LDE in Ga, we went in speed and was able to still work, Then the band went south on us and it dead now, the program need some more work on it. But yes it does work even at mornal speed, we didnt try to top speed the bans was gone. Russell = IN GOD WE TRUST ! = Russell Blair (NC5O) Skype-Russell.Blair Hell Field #300 DRCC #55 30m Dig-group #693 --- On Sat, 12/13/08, Andy obrien k3uka...@gmail.com wrote: From: Andy obrien k3uka...@gmail.com Subject: [digitalradio] MFTTY: It works To: digitalradio digitalradio@yahoogroups.com Date: Saturday, December 13, 2008, 1:01 PM I had a QSO with NC5O in texas on 10135.5 USB. It seems to do fairly well with moderate signals. CQ CQ tesde k3uk k3uk K3uk CQ CQ CQ test de k3uk k3uk K3uk £´k3uk hi there de nc5o nc50 hi nc50 hi from Andy in NY log o with w4nice to c u hr nc5o Nc5O de k3uk good signal here in NY state over... e prograVVsowork oFrus to useare he in texatday d Glad I am making it to texas, still trying to figure this out ...BTU de K3UK hy holiday to uand tnx‡Vqso I am loseinyou now V6Vó¦ 73 and happy holidays to u nc5o de k3uk sk Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Yahoo! Groups Links
Re: [digitalradio] MFTTY: It works
Hi all, Just downloaded the MFTT software, I'm on the Isle of Lewis, NW Scotland. Listening 10.135,5 What speed etc should I be set too and I will listen. Toby ---Original Message--- From: Dave 'Doc' Corio Date: 13/12/2008 19:04:38 To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] MFTTY: It works I could also hear you in there, Andy, but much too close to try for a QSO on 30M! Had a good copy on Russell, but the tuning has me a bit baffled. With my rig tuned so that I was decoding Russell and Ron, my tones sounded like they were much lower than the other two stations. How can you tell when you are right on frequency? 73 Dave KB3MOW Andy obrien wrote: I had a QSO with NC5O in texas on 10135.5 USB. It seems to do fairly well with moderate signals. CQ CQ tesde k3uk k3uk K3uk CQ CQ CQ test de k3uk k3uk K3uk £´k3uk hi there de nc5o nc50 hi nc50 hi from Andy in NY log o with w4nice to c u hr nc5o Nc5O de k3uk good signal here in NY state over... e prograVVsowork oFrus to useare he in texatday d Glad I am making it to texas, still trying to figure this out ...BTU de K3UK hy holiday to uand tnxVqso I am loseinyou now V6Vó¦ 73 and happy holidays to u nc5o de k3uk sk Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Yahoo! Groups Links Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Yahoo! Groups Links snow_pattern.gif5453.gif
Re: [digitalradio] MFTTY: It works
Toby, set it to 1/2 speed and see if I can copy you hr in Texas Russell = IN GOD WE TRUST ! = Russell Blair (NC5O) Skype-Russell.Blair Hell Field #300 DRCC #55 30m Dig-group #693--- On Sat, 12/13/08, Toby Burnett ruff...@hebrides.net wrote: From: Toby Burnett ruff...@hebrides.netSubject: Re: [digitalradio] MFTTY: It worksTo: digitalradio@yahoogroups.comDate: Saturday, December 13, 2008, 1:13 PM Hi all, Just downloaded the MFTT software, I'm on the Isle of Lewis, NW Scotland. Listening 10.135,5 What speed etc should I be set too and I will listen. Toby ---Original Message- -- From: Dave 'Doc' Corio Date: 13/12/2008 19:04:38 To: digitalradio@ yahoogroups. com Subject: Re: [digitalradio] MFTTY: It works I could also hear you in there, Andy, but much too close to try for a QSO on 30M! Had a good copy on Russell, but the tuning has me a bit baffled. With my rig tuned so that I was decoding Russell and Ron, my tones sounded like they were much lower than the other two stations. How can you tell when you are right on frequency? 73 Dave KB3MOW Andy obrien wrote: I had a QSO with NC5O in texas on 10135.5 USB.It seems to do fairly well with moderate signals. CQ CQ tesde k3uk k3uk K3uk CQ CQ CQ test de k3uk k3uk K3uk £´k3uk hi there de nc5o nc50 hi nc50 hifrom Andy in NY log o with w4nice to c u hr nc5o Nc5O de k3ukgood signal here in NY state over... e prograVVso work oFrus to useare he in texatday d Glad I am making it to texas, still trying to figure this out ...BTU de K3UK hy holiday to uand tnx‡Vqso I am loseinyou now V6Vó¦ 73 and happy holidays to u nc5o de k3uk sk - - -- Announce your digital presence via our Interactive Sked Page at http://www.obriensw eb.com/sked Yahoo! Groups Links - - -- Announce your digital presence via our Interactive Sked Page at http://www.obriensw eb.com/sked Yahoo! Groups Links * To visit your group on the web, go to: http://groups. yahoo.com/ group/digitalrad io/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups. yahoo.com/ group/digitalrad io/join (Yahoo! ID required) * To change settings via email: mailto:digitalradio -dig...@yahoogro ups.com mailto:digitalradio -fullfeatured@ yahoogroups. com * To unsubscribe from this group, send an email to: digitalradio- unsubscribe@ yahoogroups. com * Your use of Yahoo! Groups is subject to: http://docs. yahoo.com/ info/terms/
Re: [digitalradio] MFTTY: It works
Russell, Thanks for the #1 MFTTY QSO on 30 meters. I would suggest that since the stated Bandwidth for 1/2 speed is 468Hz that probably that keeps us inside the 500Hz allowed bandwidth for most of the digital frequencies. What I see interesting is the RX bandwidth at hald speed which is 15Hz. That helps explain why so many are having trouble syncing in on a station. I think that the mode needs lots of work before it can be used by all. I can't get the help file to open. O'well back to the standards 73 de Ron W4LDE Russell Blair wrote: Toby, set it to 1/2 speed and see if I can copy you hr in Texas Russell = *IN GOD WE TRUST !* = Russell Blair (NC5O) Skype-Russell.Blair Hell Field #300 DRCC #55 30m Dig-group #693 --- On *Sat, 12/13/08, Toby Burnett /ruff...@hebrides.net/* wrote: From: Toby Burnett ruff...@hebrides.net Subject: Re: [digitalradio] MFTTY: It works To: digitalradio@yahoogroups.com Date: Saturday, December 13, 2008, 1:13 PM Hi all, Just downloaded the MFTT software, I'm on the Isle of Lewis, NW Scotland. Listening 10.135,5 What speed etc should I be set too and I will listen. Toby /---Original Message- --/ /*From:*/ Dave 'Doc' Corio mailto:dco...@zitomedia.net /*Date:*/ 13/12/2008 19:04:38 /*To:*/ digitalradio@ yahoogroups. com mailto:digitalradio@yahoogroups.com /*Subject:*/ Re: [digitalradio] MFTTY: It works I could also hear you in there, Andy, but much too close to try for a QSO on 30M! Had a good copy on Russell, but the tuning has me a bit baffled. With my rig tuned so that I was decoding Russell and Ron, my tones sounded like they were much lower than the other two stations. How can you tell when you are right on frequency? 73 Dave KB3MOW Andy obrien wrote: I had a QSO with NC5O in texas on 10135.5 USB. It seems to do fairly well with moderate signals. CQ CQ tesde k3uk k3uk K3uk CQ CQ CQ test de k3uk k3uk K3uk £´k3uk hi there de nc5o nc50 hi nc50 hi from Andy in NY log o with w4nice to c u hr nc5o Nc5O de k3uk good signal here in NY state over... e prograVVso work oFrus to useare he in texatday d Glad I am making it to texas, still trying to figure this out ...BTU de K3UK hy holiday to uand tnx‡Vqso I am loseinyou now V6Vó¦ 73 and happy holidays to u nc5o de k3uk sk - - -- Announce your digital presence via our Interactive Sked Page at http://www.obriensw eb.com/sked http://www.obriensweb.com/sked Yahoo! Groups Links - - -- Announce your digital presence via our Interactive Sked Page at http://www.obriensw eb.com/sked http://www.obriensweb.com/sked Yahoo! Groups Links (Yahoo! ID required) mailto:digitalradio -fullfeatured@ yahoogroups. com mailto:digitalradio-fullfeatu...@yahoogroups.com Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: mailto:digitalradio-dig...@yahoogroups.com mailto:digitalradio-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: digitalradio-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [digitalradio] MFTTY: It works Help file (Ron)
Ron, I download the help files to, but mine works in the program on top (?) and
it pulled the help in HTML format. Yes the program needs some more work for me
to be a on going user. Tnx for the qso CUL 73
Russell
=
IN GOD WE TRUST !
=
Russell Blair (NC5O) Skype-Russell.Blair Hell Field #300 DRCC #55 30m
Dig-group #693
--- On Sat, 12/13/08, w4lde w4...@numail.org wrote:
From: w4lde w4...@numail.org
Subject: Re: [digitalradio] MFTTY: It works
To: digitalradio@yahoogroups.com
Date: Saturday, December 13, 2008, 2:26 PM
Russell,
Thanks for the #1 MFTTY QSO on 30 meters. I would suggest
that since
the stated Bandwidth for 1/2 speed is 468Hz that probably
that keeps us
inside the 500Hz allowed bandwidth for most of the digital
frequencies.
What I see interesting is the RX bandwidth at hald speed
which is 15Hz.
That helps explain why so many are having trouble syncing
in on a
station. I think that the mode needs lots of work before
it can be used
by all. I can't get the help file to open. O'well
back to the standards
73 de
Ron W4LDE
Russell Blair wrote:
Toby, set it to 1/2 speed and see if I can copy you hr
in Texas
Russell
=
*IN GOD WE TRUST !*
=
Russell Blair (NC5O)
Skype-Russell.Blair
Hell Field #300
DRCC #55
30m Dig-group #693
--- On *Sat, 12/13/08, Toby Burnett
/ruff...@hebrides.net/* wrote:
From: Toby Burnett ruff...@hebrides.net
Subject: Re: [digitalradio] MFTTY: It works
To: digitalradio@yahoogroups.com
Date: Saturday, December 13, 2008, 1:13 PM
Hi all,
Just downloaded the MFTT software,
I'm on the Isle of Lewis, NW Scotland.
Listening 10.135,5
What speed etc should I be set too and I will
listen.
Toby
/---Original Message- --/
/*From:*/ Dave 'Doc' Corio
mailto:dco...@zitomedia.net
/*Date:*/ 13/12/2008 19:04:38
/*To:*/ digitalradio@ yahoogroups. com
mailto:digitalradio@yahoogroups.com
/*Subject:*/ Re: [digitalradio] MFTTY: It works
I could also hear you in there, Andy, but much
too close to
try for
a QSO on 30M! Had a good copy on Russell, but the
tuning has me a bit
baffled.
With my rig tuned so that I was decoding
Russell and Ron, my tones
sounded like they were much lower than the other
two stations.
How can you tell when you are right on frequency?
73
Dave
KB3MOW
Andy obrien wrote:
I had a QSO with NC5O in texas on 10135.5
USB. It seems to do
fairly
well with moderate signals.
CQ CQ tesde k3uk k3uk K3uk
CQ CQ CQ test de k3uk k3uk K3uk
£´k3uk hi there de nc5o
nc50 hi
nc50 hi from Andy in NY
log o with w4nice to c u hr nc5o
Nc5O de k3uk good signal here in NY state
over...
e prograVVso work oFrus to useare he in
texatday d
Glad I am making it to texas, still trying to
figure this out
...BTU de K3UK
hy holiday to uand tnx‡Vqso I am loseinyou
now V6Vó¦
73 and happy holidays to u nc5o de k3uk sk
- - --
Announce your digital presence via our
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http://www.obriensw eb.com/sked
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Announce your digital presence via our Interactive
Sked Page at
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(Yahoo! ID required)
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Re: [digitalradio] MFTTY: It works
Ron, Although I am not strongly supportive of wide bandwidth modes in what has historically been the narrower portions of the HF bands, I will use 1000 or even 2000 Hz modes under conditions where a given band is almost devoid of signals, or under severe conditions. This is not a criticism, but where do you find any reference to an allowed bandwidth? There are no specific HF digital frequencies that I am aware of here in the U.S.It is true that on the HF bands we have RTTY/Data portions and phone/image portions. Digital modes can be used throughout the bands based upon the type of information to be transmitted. (The third symbol in the ITU Classifications of Emissions). The one change in the past few years was allowing image (fax), whether digital or analog, in the RTTY/Data portions of the HF bands, providing the emission is 500 Hz or narrower. But non-phone emissions have no specific bandwidth limit except that they may not exceed the bandwidth of a communications quality phone emission of the same modulation type. There is a special restriction for stations in automatic operation where there can be a 500 Hz limitation. But there is no such limitation with operators communicating from their control points. Finally, there are band plans from various groups, particularly the IARU and while they appear at times to not properly reflect current actual operating practices, they can be used as a guide. 73, Rick, KV9U w4lde wrote: Russell, Thanks for the #1 MFTTY QSO on 30 meters. I would suggest that since the stated Bandwidth for 1/2 speed is 468Hz that probably that keeps us inside the 500Hz allowed bandwidth for most of the digital frequencies.
