Linux & Packet promotion in India

[Miroslav Skoric [e-mail] [linuxham]]

Hi Linux hams,

I promote ham digital radio by traveling for scientific conferences (see
the list bellow), visiting academic institutions, and writing research
papers. Those activities include an opportunity for promoting hardware &
software for sound card packet (and other digital modes). For example,
in two weeks I will visit India as a tutorial speaker on the Amateur
Radio Communications, related software and computer networks in
Education (for details please visit
http://wocn2014.org/wtutorials.html). I'll travel with a Debian 7.6 laptop.

There will be some more (7-8) ham radio presentations during the same
trip, as well as in years to come, so if you know of ham manufacturers
and digital mode software programmers that might be interested in
additional promotion of their products and services, by donating a peace
of their software (if non-free) and/or hardware for digital mode
communications, or anything else that they might feel they have
potential market there. Such things would travel with me to various
conference locations, universities, schools etc.

Feel free to contact me with your comments and suggestions.

73!

Misko, YT7MPB
--
tutorial instructor:

http://sdiwc.net/conferences/2014/iceee2014/tutorial/
http://www.juit.ac.in/ISPCC_2013/
http://www.buruniv.ac.in/ICCS-2013/index.html
http://www.sdiwc.net/thi/
http://www.sdiwc.net/kl/
http://www.iaeng.org/IMECS2011
http://www.dirf.org/ndt2010
http://www.icact.org/
http://www.iaeng.org/IMECS2009
http://www.iaria.org/conferences2008/ICWMC08.html
http://www.wseas.org/conferences/2008/greece/education/
http://www.wseas.us/conferences/2009/rodos/education
http://eurocon2007.isep.pw.edu.pl/index.php?id=tutorials.php
http://tldp.org/HOWTO/FBB.html

workshop / visiting lecturer:

IIT, Banaras Hindu University, Varanasi, India
Techno India NJR Institute of Technology, Udaipur, India
BMS College of Engineering, Bangalore, India
IIIITM-K, Technopark, Trivandrum, India
BU, Bangkok, Thailand
IIUM, Kuala Lumpur, Malaysia

book chapter author:

Handbook of Research on Human Performance and Instructional Technology
ISBN: 978-1-60566-782-9; 678 pp; October 2009
Published under Information Science Reference, an imprint of IGI Global
http://www.igi-global.com/reference/details.asp?id=34814

Simulation in Computer Network Design and Modeling: Use and Analysis
ISBN: 978-1-46660-191-8; 582 pages; February 2012
Published by IGI Global, USA
http://www.igi-global.com/book/simulation-computer-network-design-modeling/58282

Wireless Networks and Security: Issues, Challenges and Research Trends
ISBN: 978-3-642-36168-5; 510 pages; February 2013
Published by Springer, Germany
http://www.springer.com/engineering/signals/book/978-3-642-36168-5

Handbook of Research on Progressive Trends in Wireless Communications
and Networking
ISBN: 9781466651708; 592 pages; February 2014
Published by IGI Global, USA
http://www.igi-global.com/book/wireless-communications-networking/90600




------------------------------------
Posted by: Miroslav Skoric <skoric-***@public.gmane.org>
------------------------------------

[Charles Brabham [e-mail] [linuxham]]

Misko,

The SGARN HF multicast system that I have been using is ideal for use in
India, as one transmitter distributes information to an unlimited number
of recipients who only need a SW receiver and a computer to obtain the
data with 100% accuracy. This achieves the highest spectral efficiency
of any amateur radio activity, accomplishing very much with a tiny slice
of spectrum. At the same time, it accomplishes the most possible with
the least investment in infrastructure.

My station runs 35 watts out of an inverted-V at 18 feet, from a
location surrounded by mountains, yet I get reception reports from both
coasts and in-between on 30 meters at night. The night-time multicast
transmissions leave the recipients' HF radio and computer free during
the daylight hours for other activities.

I send all current ARRL bulletins, plus a few small informational text
files nightly on 30m.

For more information, browse www.sgarn.org. There are articles there
explaining how it works, how to transmit, and how to receive the
multicasts. The system is suitable for either HF or VHF.

73 DE Charles, N5PVL

Post by Miroslav Skoric skoric-***@public.gmane.org [linuxham]
Hi Linux hams,
I promote ham digital radio by traveling for scientific conferences (see
the list bellow), visiting academic institutions, and writing research
papers. Those activities include an opportunity for promoting hardware &
software for sound card packet (and other digital modes). For example,
in two weeks I will visit India as a tutorial speaker on the Amateur
Radio Communications, related software and computer networks in
Education (for details please visit
http://wocn2014.org/wtutorials.html). I'll travel with a Debian 7.6 laptop.
There will be some more (7-8) ham radio presentations during the same
trip, as well as in years to come, so if you know of ham manufacturers
and digital mode software programmers that might be interested in
additional promotion of their products and services, by donating a peace
of their software (if non-free) and/or hardware for digital mode
communications, or anything else that they might feel they have
potential market there. Such things would travel with me to various
conference locations, universities, schools etc.
Feel free to contact me with your comments and suggestions.
73!
Misko, YT7MPB
--
http://sdiwc.net/conferences/2014/iceee2014/tutorial/
http://www.juit.ac.in/ISPCC_2013/
http://www.buruniv.ac.in/ICCS-2013/index.html
http://www.sdiwc.net/thi/
http://www.sdiwc.net/kl/
http://www.iaeng.org/IMECS2011
http://www.dirf.org/ndt2010
http://www.icact.org/
http://www.iaeng.org/IMECS2009
http://www.iaria.org/conferences2008/ICWMC08.html
http://www.wseas.org/conferences/2008/greece/education/
http://www.wseas.us/conferences/2009/rodos/education
http://eurocon2007.isep.pw.edu.pl/index.php?id=tutorials.php
http://tldp.org/HOWTO/FBB.html
IIT, Banaras Hindu University, Varanasi, India
Techno India NJR Institute of Technology, Udaipur, India
BMS College of Engineering, Bangalore, India
IIIITM-K, Technopark, Trivandrum, India
BU, Bangkok, Thailand
IIUM, Kuala Lumpur, Malaysia
Handbook of Research on Human Performance and Instructional Technology
ISBN: 978-1-60566-782-9; 678 pp; October 2009
Published under Information Science Reference, an imprint of IGI Global
http://www.igi-global.com/reference/details.asp?id=34814
Simulation in Computer Network Design and Modeling: Use and Analysis
ISBN: 978-1-46660-191-8; 582 pages; February 2012
Published by IGI Global, USA
http://www.igi-global.com/book/simulation-computer-network-design-modeling/58282
Wireless Networks and Security: Issues, Challenges and Research Trends
ISBN: 978-3-642-36168-5; 510 pages; February 2013
Published by Springer, Germany
http://www.springer.com/engineering/signals/book/978-3-642-36168-5
Handbook of Research on Progressive Trends in Wireless Communications
and Networking
ISBN: 9781466651708; 592 pages; February 2014
Published by IGI Global, USA
http://www.igi-global.com/book/wireless-communications-networking/90600

[la7um-/[e-mail] [linuxham]]

Charles. For reliable reports, you must have a strickt frequency (and off set) scedule for folks listening in from abroad, not knowing local issues in US. Ham bands, if occupied, cannot be used until free from traffic, so be it.
Still same sceduled frequency. Downside off course: Manual waiting for free freq for TX.


The idea is good, and might be ideal for FM TX locally.


Principally actually pretty similar to VOAradiogram.net weekend 30 minutes AM SW transmissions ending up using mostly MFSK 32 as a compromise between speed and robustness after more than 70 weekend tests WW getting RX reports. (Tested most all modes during a year).
I have long experience Rx that, first Windows XP, then Old Mac, now WIN7 PC again, will later test new Mac and Linux if getting local help.


They even tested Flamp for a while, which is a very good "ONE TO MANY" solution with x numbers of repetitions for 100% correct message without any doubt.


For standard "man in the street use", Flamp is too complicated, but for dedicated and educated HAMS, a good solution with Flamp for secure perfection.


Finn/LA7UM near Oslo.



---In ***@yahoogroups.com, <***@...> wrote :

Misko,

The SGARN HF multicast system that I have been using is ideal for use in India, as one transmitter distributes information to an unlimited number of recipients who only need a SW receiver and a computer to obtain the data with 100% accuracy. This achieves the highest spectral efficiency of any amateur radio activity, accomplishing very much with a tiny slice of spectrum. At the same time, it accomplishes the most possible with the least investment in infrastructure.

My station runs 35 watts out of an inverted-V at 18 feet, from a location surrounded by mountains, yet I get reception reports from both coasts and in-between on 30 meters at night. The night-time multicast transmissions leave the recipients' HF radio and computer free during the daylight hours for other activities.

I send all current ARRL bulletins, plus a few small informational text files nightly on 30m.

For more information, browse www.sgarn.org http://www.sgarn.org. There are articles there explaining how it works, how to transmit, and how to receive the multicasts. The system is suitable for either HF or VHF.

73 DE Charles, N5PVL


On 8/22/2014 4:26 PM, Miroslav Skoric ***@... mailto:***@... [linuxham] wrote:

Hi Linux hams,

I promote ham digital radio by traveling for scientific conferences (see
the list bellow), visiting academic institutions, and writing research
papers. Those activities include an opportunity for promoting hardware &
software for sound card packet (and other digital modes). For example,
in two weeks I will visit India as a tutorial speaker on the Amateur
Radio Communications, related software and computer networks in
Education (for details please visit
http://wocn2014.org/wtutorials.html http://wocn2014.org/wtutorials.html). I'll travel with a Debian 7.6 laptop.

There will be some more (7-8) ham radio presentations during the same
trip, as well as in years to come, so if you know of ham manufacturers
and digital mode software programmers that might be interested in
additional promotion of their products and services, by donating a peace
of their software (if non-free) and/or hardware for digital mode
communications, or anything else that they might feel they have
potential market there. Such things would travel with me to various
conference locations, universities, schools etc.

Feel free to contact me with your comments and suggestions.

73!

Misko, YT7MPB

--

tutorial instructor:

http://sdiwc.net/conferences/2014/iceee2014/tutorial/ http://sdiwc.net/conferences/2014/iceee2014/tutorial/
http://www.juit.ac.in/ISPCC_2013/ http://www.juit.ac.in/ISPCC_2013/
http://www.buruniv.ac.in/ICCS-2013/index.html http://www.buruniv.ac.in/ICCS-2013/index.html
http://www.sdiwc.net/thi/ http://www.sdiwc.net/thi/
http://www.sdiwc.net/kl/ http://www.sdiwc.net/kl/
http://www.iaeng.org/IMECS2011 http://www.iaeng.org/IMECS2011
http://www.dirf.org/ndt2010 http://www.dirf.org/ndt2010
http://www.icact.org/ http://www.icact.org/
http://www.iaeng.org/IMECS2009 http://www.iaeng.org/IMECS2009
http://www.iaria.org/conferences2008/ICWMC08.html http://www.iaria.org/conferences2008/ICWMC08.html
http://www.wseas.org/conferences/2008/greece/education/ http://www.wseas.org/conferences/2008/greece/education/
http://www.wseas.us/conferences/2009/rodos/education http://www.wseas.us/conferences/2009/rodos/education
http://eurocon2007.isep.pw.edu.pl/index.php?id=tutorials.php http://eurocon2007.isep.pw.edu.pl/index.php?id=tutorials.php
http://tldp.org/HOWTO/FBB.html http://tldp.org/HOWTO/FBB.html

workshop / visiting lecturer:

IIT, Banaras Hindu University, Varanasi, India
Techno India NJR Institute of Technology, Udaipur, India
BMS College of Engineering, Bangalore, India
IIIITM-K, Technopark, Trivandrum, India
BU, Bangkok, Thailand
IIUM, Kuala Lumpur, Malaysia

book chapter author:

Handbook of Research on Human Performance and Instructional Technology
ISBN: 978-1-60566-782-9; 678 pp; October 2009
Published under Information Science Reference, an imprint of IGI Global
http://www.igi-global.com/reference/details.asp?id=34814 http://www.igi-global.com/reference/details.asp?id=34814

Simulation in Computer Network Design and Modeling: Use and Analysis
ISBN: 978-1-46660-191-8; 582 pages; February 2012
Published by IGI Global, USA
http://www.igi-global.com/book/simulation-computer-network-design-modeling/58282 http://www.igi-global.com/book/simulation-computer-network-design-modeling/58282

Wireless Networks and Security: Issues, Challenges and Research Trends
ISBN: 978-3-642-36168-5; 510 pages; February 2013
Published by Springer, Germany
http://www.springer.com/engineering/signals/book/978-3-642-36168-5 http://www.springer.com/engineering/signals/book/978-3-642-36168-5

Handbook of Research on Progressive Trends in Wireless Communications
and Networking
ISBN: 9781466651708; 592 pages; February 2014
Published by IGI Global, USA
http://www.igi-global.com/book/wireless-communications-networking/90600 http://www.igi-global.com/book/wireless-communications-networking/90600

[Miroslav Skoric [e-mail] [linuxham]]

Charles, Finn, ...

Thank you for response. I'll check the web and get back.

Regards,

Misko YT7MPB

Post by la7um-/***@public.gmane.org [linuxham]
Charles. For reliable reports, you must have a strickt frequency (and off set) scedule for folks listening in from abroad, not knowing local issues in US. Ham bands, if occupied, cannot be used until free from traffic, so be it.
Still same sceduled frequency. Downside off course: Manual waiting for free freq for TX.
The idea is good, and might be ideal for FM TX locally.
Principally actually pretty similar to VOAradiogram.net weekend 30 minutes AM SW transmissions ending up using mostly MFSK 32 as a compromise between speed and robustness after more than 70 weekend tests WW getting RX reports. (Tested most all modes during a year).
I have long experience Rx that, first Windows XP, then Old Mac, now WIN7 PC again, will later test new Mac and Linux if getting local help.
They even tested Flamp for a while, which is a very good "ONE TO MANY" solution with x numbers of repetitions for 100% correct message without any doubt.
For standard "man in the street use", Flamp is too complicated, but for dedicated and educated HAMS, a good solution with Flamp for secure perfection.
Finn/LA7UM near Oslo.
Misko,
The SGARN HF multicast system that I have been using is ideal for use in India, as one transmitter distributes information to an unlimited number of recipients who only need a SW receiver and a computer to obtain the data with 100% accuracy. This achieves the highest spectral efficiency of any amateur radio activity, accomplishing very much with a tiny slice of spectrum. At the same time, it accomplishes the most possible with the least investment in infrastructure.
My station runs 35 watts out of an inverted-V at 18 feet, from a location surrounded by mountains, yet I get reception reports from both coasts and in-between on 30 meters at night. The night-time multicast transmissions leave the recipients' HF radio and computer free during the daylight hours for other activities.
I send all current ARRL bulletins, plus a few small informational text files nightly on 30m.
For more information, browse www.sgarn.org http://www.sgarn.org. There are articles there explaining how it works, how to transmit, and how to receive the multicasts. The system is suitable for either HF or VHF.
73 DE Charles, N5PVL
Hi Linux hams,
I promote ham digital radio by traveling for scientific conferences (see
the list bellow), visiting academic institutions, and writing research
papers. Those activities include an opportunity for promoting hardware &
software for sound card packet (and other digital modes). For example,
in two weeks I will visit India as a tutorial speaker on the Amateur
Radio Communications, related software and computer networks in
Education (for details please visit
http://wocn2014.org/wtutorials.html http://wocn2014.org/wtutorials.html). I'll travel with a Debian 7.6 laptop.
There will be some more (7-8) ham radio presentations during the same
trip, as well as in years to come, so if you know of ham manufacturers
and digital mode software programmers that might be interested in
additional promotion of their products and services, by donating a peace
of their software (if non-free) and/or hardware for digital mode
communications, or anything else that they might feel they have
potential market there. Such things would travel with me to various
conference locations, universities, schools etc.
Feel free to contact me with your comments and suggestions.
73!
Misko, YT7MPB
--
http://sdiwc.net/conferences/2014/iceee2014/tutorial/ http://sdiwc.net/conferences/2014/iceee2014/tutorial/
http://www.juit.ac.in/ISPCC_2013/ http://www.juit.ac.in/ISPCC_2013/
http://www.buruniv.ac.in/ICCS-2013/index.html http://www.buruniv.ac.in/ICCS-2013/index.html
http://www.sdiwc.net/thi/ http://www.sdiwc.net/thi/
http://www.sdiwc.net/kl/ http://www.sdiwc.net/kl/
http://www.iaeng.org/IMECS2011 http://www.iaeng.org/IMECS2011
http://www.dirf.org/ndt2010 http://www.dirf.org/ndt2010
http://www.icact.org/ http://www.icact.org/
http://www.iaeng.org/IMECS2009 http://www.iaeng.org/IMECS2009
http://www.iaria.org/conferences2008/ICWMC08.html http://www.iaria.org/conferences2008/ICWMC08.html
http://www.wseas.org/conferences/2008/greece/education/ http://www.wseas.org/conferences/2008/greece/education/
http://www.wseas.us/conferences/2009/rodos/education http://www.wseas.us/conferences/2009/rodos/education
http://eurocon2007.isep.pw.edu.pl/index.php?id=tutorials.php http://eurocon2007.isep.pw.edu.pl/index.php?id=tutorials.php
http://tldp.org/HOWTO/FBB.html http://tldp.org/HOWTO/FBB.html
IIT, Banaras Hindu University, Varanasi, India
Techno India NJR Institute of Technology, Udaipur, India
BMS College of Engineering, Bangalore, India
IIIITM-K, Technopark, Trivandrum, India
BU, Bangkok, Thailand
IIUM, Kuala Lumpur, Malaysia
Handbook of Research on Human Performance and Instructional Technology
ISBN: 978-1-60566-782-9; 678 pp; October 2009
Published under Information Science Reference, an imprint of IGI Global
http://www.igi-global.com/reference/details.asp?id=34814 http://www.igi-global.com/reference/details.asp?id=34814
Simulation in Computer Network Design and Modeling: Use and Analysis
ISBN: 978-1-46660-191-8; 582 pages; February 2012
Published by IGI Global, USA
http://www.igi-global.com/book/simulation-computer-network-design-modeling/58282 http://www.igi-global.com/book/simulation-computer-network-design-modeling/58282
Wireless Networks and Security: Issues, Challenges and Research Trends
ISBN: 978-3-642-36168-5; 510 pages; February 2013
Published by Springer, Germany
http://www.springer.com/engineering/signals/book/978-3-642-36168-5 http://www.springer.com/engineering/signals/book/978-3-642-36168-5
Handbook of Research on Progressive Trends in Wireless Communications
and Networking
ISBN: 9781466651708; 592 pages; February 2014
Published by IGI Global, USA
http://www.igi-global.com/book/wireless-communications-networking/90600 http://www.igi-global.com/book/wireless-communications-networking/90600

------------------------------------
Posted by: Miroslav Skoric <skoric-***@public.gmane.org>
------------------------------------

[Miroslav Skoric [e-mail] [linuxham]]

Charles, Finn, ...

It makes me wonder if (and how) SGARN system handles automatic exchange
of bulletins and private messages? I mean whether there exist some
packet-like BBSs and nodes on VHF/UHF as user access points? Or it works
on HF only.

Secondly, I use Debian, and in its repository I did not see FLAMP (while
FLDIGI is there). I suppose that FLAMP is not yet fully tested by Debian
folks, or something ... Any idea?

Secondly, does FLDIGI supports AX.25 (AFSK) packet?

Regards,

Misko YT7MPB

Post by la7um-/***@public.gmane.org [linuxham]
Charles. For reliable reports, you must have a strickt frequency (and off set) scedule for folks listening in from abroad, not knowing local issues in US. Ham bands, if occupied, cannot be used until free from traffic, so be it.
Still same sceduled frequency. Downside off course: Manual waiting for free freq for TX.
The idea is good, and might be ideal for FM TX locally.
Principally actually pretty similar to VOAradiogram.net weekend 30 minutes AM SW transmissions ending up using mostly MFSK 32 as a compromise between speed and robustness after more than 70 weekend tests WW getting RX reports. (Tested most all modes during a year).
I have long experience Rx that, first Windows XP, then Old Mac, now WIN7 PC again, will later test new Mac and Linux if getting local help.
They even tested Flamp for a while, which is a very good "ONE TO MANY" solution with x numbers of repetitions for 100% correct message without any doubt.
For standard "man in the street use", Flamp is too complicated, but for dedicated and educated HAMS, a good solution with Flamp for secure perfection.
Finn/LA7UM near Oslo.
Misko,
The SGARN HF multicast system that I have been using is ideal for use in India, as one transmitter distributes information to an unlimited number of recipients who only need a SW receiver and a computer to obtain the data with 100% accuracy. This achieves the highest spectral efficiency of any amateur radio activity, accomplishing very much with a tiny slice of spectrum. At the same time, it accomplishes the most possible with the least investment in infrastructure.
My station runs 35 watts out of an inverted-V at 18 feet, from a location surrounded by mountains, yet I get reception reports from both coasts and in-between on 30 meters at night. The night-time multicast transmissions leave the recipients' HF radio and computer free during the daylight hours for other activities.
I send all current ARRL bulletins, plus a few small informational text files nightly on 30m.
For more information, browse www.sgarn.org http://www.sgarn.org. There are articles there explaining how it works, how to transmit, and how to receive the multicasts. The system is suitable for either HF or VHF.
73 DE Charles, N5PVL

------------------------------------
Posted by: Miroslav Skoric <skoric-***@public.gmane.org>
------------------------------------

[Charles Brabham [e-mail] [linuxham]]

Howdy Misko,

SGARN (Second Generation Amateur Radio Network) is intended to avoid
some of the greater mistakes made in the old Packet network.
Consequently, you will find that SGARN does things quite differently. -
It's not just another iteration of the same old thing, done the same old
way, with a different name stuck on it.

One of the mistakes that SGARN avoids is the entire idea of attempting
to provide personal messaging service via HF. Messaging is only done on
VHF and above.

SGARN distributes bulletin traffic on HF, but only from recognized
sources. - Thus avoiding the tons of trash bulletins that typify the
Packet network.

The HF activity is one-way, multicast transmissions where a single HF
server can distribute bulletins to an unlimited number of recipients
simultaneously - with 100% accuracy.

Your best bet for understanding what SGARN does and does not do it to
follow my earlier suggestion, and look over the articles at the SGARN
website.

http://www.sgarn.org

It's really not polite for me to explain all of this here, when you or
anybody else who has questions about SGARN can simply go the SGARN
website and find the answers there.

73 DE Charles, N5PVL

Post by Miroslav Skoric skoric-***@public.gmane.org [linuxham]
Charles, Finn, ...
It makes me wonder if (and how) SGARN system handles automatic exchange
of bulletins and private messages? I mean whether there exist some
packet-like BBSs and nodes on VHF/UHF as user access points? Or it works
on HF only.
Secondly, I use Debian, and in its repository I did not see FLAMP (while
FLDIGI is there). I suppose that FLAMP is not yet fully tested by Debian
folks, or something ... Any idea?
Secondly, does FLDIGI supports AX.25 (AFSK) packet?
Regards,
Misko YT7MPB

Post by la7um-/***@public.gmane.org [linuxham]
Charles. For reliable reports, you must have a strickt frequency

(and off set) scedule for folks listening in from abroad, not knowing
local issues in US. Ham bands, if occupied, cannot be used until free
from traffic, so be it.

Post by la7um-/***@public.gmane.org [linuxham]
Still same sceduled frequency. Downside off course: Manual waiting

for free freq for TX.

Post by la7um-/***@public.gmane.org [linuxham]
The idea is good, and might be ideal for FM TX locally.
Principally actually pretty similar to VOAradiogram.net weekend 30

minutes AM SW transmissions ending up using mostly MFSK 32 as a
compromise between speed and robustness after more than 70 weekend
tests WW getting RX reports. (Tested most all modes during a year).

Post by la7um-/***@public.gmane.org [linuxham]
I have long experience Rx that, first Windows XP, then Old Mac, now

WIN7 PC again, will later test new Mac and Linux if getting local help.

Post by la7um-/***@public.gmane.org [linuxham]
They even tested Flamp for a while, which is a very good "ONE TO

MANY" solution with x numbers of repetitions for 100% correct message
without any doubt.

Post by la7um-/***@public.gmane.org [linuxham]
For standard "man in the street use", Flamp is too complicated, but

for dedicated and educated HAMS, a good solution with Flamp for secure
perfection.

Post by la7um-/***@public.gmane.org [linuxham]
Finn/LA7UM near Oslo.
Misko,
The SGARN HF multicast system that I have been using is ideal for

use in India, as one transmitter distributes information to an
unlimited number of recipients who only need a SW receiver and a
computer to obtain the data with 100% accuracy. This achieves the
highest spectral efficiency of any amateur radio activity,
accomplishing very much with a tiny slice of spectrum. At the same
time, it accomplishes the most possible with the least investment in
infrastructure.

Post by la7um-/***@public.gmane.org [linuxham]
My station runs 35 watts out of an inverted-V at 18 feet, from a

location surrounded by mountains, yet I get reception reports from
both coasts and in-between on 30 meters at night. The night-time
multicast transmissions leave the recipients' HF radio and computer
free during the daylight hours for other activities.

Post by la7um-/***@public.gmane.org [linuxham]
I send all current ARRL bulletins, plus a few small informational

text files nightly on 30m.

Post by la7um-/***@public.gmane.org [linuxham]
For more information, browse www.sgarn.org http://www.sgarn.org.

There are articles there explaining how it works, how to transmit, and
how to receive the multicasts. The system is suitable for either HF or
VHF.

Post by la7um-/***@public.gmane.org [linuxham]
73 DE Charles, N5PVL

[la7um-/[e-mail] [linuxham]]

Misko. Charles and Dave is the ones to answer here. I believe there is under long term Beta development AX25 for Fldigi.
My comments mainly related to the successful VOA transmission tests (voaradiogram.net).This to a certain degree looks similar to the system of Charles for the information broadcasting/multicasting part.

How information is spread to the various transmitters probably can be done by any mode available.
Internet, Satelite, Telephone, Winlink, BPQ32, Fldigi chain of Peer2Peers, old time Packet networks, runners, cars, aeroplanes, letter pigeons, morse signalling by light, etc. etc. you name it.

Point is redundancy for getting info, but spectrum effective ways of spreading info....one to many.

73 de LA7UM Finn




---In ***@yahoogroups.com, <***@...> wrote :

Charles, Finn, ...

It makes me wonder if (and how) SGARN system handles automatic exchange
of bulletins and private messages? I mean whether there exist some
packet-like BBSs and nodes on VHF/UHF as user access points? Or it works
on HF only.

Secondly, I use Debian, and in its repository I did not see FLAMP (while
FLDIGI is there). I suppose that FLAMP is not yet fully tested by Debian
folks, or something ... Any idea?

Secondly, does FLDIGI supports AX.25 (AFSK) packet?

Regards,

Misko YT7MPB

Charles. For reliable reports, you must have a strickt frequency (and off set) scedule for folks listening in from abroad, not knowing local issues in US. Ham bands, if occupied, cannot be used until free from traffic, so be it.
Still same sceduled frequency. Downside off course: Manual waiting for free freq for TX.
The idea is good, and might be ideal for FM TX locally.
Principally actually pretty similar to VOAradiogram.net weekend 30 minutes AM SW transmissions ending up using mostly MFSK 32 as a compromise between speed and robustness after more than 70 weekend tests WW getting RX reports. (Tested most all modes during a year).
I have long experience Rx that, first Windows XP, then Old Mac, now WIN7 PC again, will later test new Mac and Linux if getting local help.
They even tested Flamp for a while, which is a very good "ONE TO MANY" solution with x numbers of repetitions for 100% correct message without any doubt.
For standard "man in the street use", Flamp is too complicated, but for dedicated and educated HAMS, a good solution with Flamp for secure perfection.
Finn/LA7UM near Oslo.
Misko,
The SGARN HF multicast system that I have been using is ideal for use in India, as one transmitter distributes information to an unlimited number of recipients who only need a SW receiver and a computer to obtain the data with 100% accuracy. This achieves the highest spectral efficiency of any amateur radio activity, accomplishing very much with a tiny slice of spectrum. At the same time, it accomplishes the most possible with the least investment in infrastructure.
My station runs 35 watts out of an inverted-V at 18 feet, from a location surrounded by mountains, yet I get reception reports from both coasts and in-between on 30 meters at night. The night-time multicast transmissions leave the recipients' HF radio and computer free during the daylight hours for other activities.
I send all current ARRL bulletins, plus a few small informational text files nightly on 30m.
For more information, browse www.sgarn.org http://www.sgarn.org http://www.sgarn.org There are articles there explaining how it works, how to transmit, and how to receive the multicasts. The system is suitable for either HF or VHF.
73 DE Charles, N5PVL

['qrv-JH0e/[e-mail]' qrv-JH0e/[e-mail] [linuxham]]

Broadcasting information has value if the source is trustworthy.

Whether India, USA, EU, Asia, etc. communication systems need
alternatives & diversity.

We also need a dense distributed emp-resistant, jamming-resistant,
"self-healing"/redundant wireless network for non-centralized
information exchange & evaluation.

The global warming/climate change fraud teaches that bureaucrats,
politicians, & scientists are vulnearable to fads & pressure to
unwisely promote propaganda as fact.

Freedom and accuracy depends upon independent means to validate
information.

We Hams are a diverse and independent bunch!

IMHO, YMMV ... David KD4E

Post by la7um-/***@public.gmane.org [linuxham]
Misko. Charles and Dave is the ones to answer here. I believe there
is under long term Beta development AX25 for Fldigi. My comments
mainly related to the successful VOA transmission tests
(voaradiogram.net).This to a certain degree looks similar to the
system of Charles for the information broadcasting/multicasting
part.
How information is spread to the various transmitters probably can
be done by any mode available. Internet, Satelite, Telephone,
Winlink, BPQ32, Fldigi chain of Peer2Peers, old time Packet networks,
runners, cars, aeroplanes, letter pigeons, morse signalling by light,
etc. etc. you name it.
Point is redundancy for getting info, but spectrum effective ways of
spreading info....one to many.
73 de LA7UM Finn

--
David Colburn, KD4E - Nevils, Georgia USA

Safe & Secure Search Engine: duckduckgo.com

Android for Hams: groups.yahoo.com/group/hamdroid
Creative Tech: groups.yahoo.com/group/ham-macguyver
Raspi Alternative: groups.yahoo.com/group/beagleboneblack/

Restored to design-spec at Heaven's gate 1Cor15:22


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Posted by: "qrv-JH0e/***@public.gmane.org" <qrv-JH0e/***@public.gmane.org>
------------------------------------

[Michael Coslo [e-mail] [linuxham]]

Post by 'qrv-JH0e/***@public.gmane.org' qrv-JH0e/***@public.gmane.org [linuxham]
The global warming/climate change fraud teaches that bureaucrats,
politicians, & scientists are vulnearable to fads & pressure to
unwisely promote propaganda as fact.

Yay, we need more of this kind of stuff.

Let us now talk about gay marriage, birth control, evolution and religion.

Because this is the exact sort of group that belongs in.

Not.

- Mike -





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Posted by: Michael Coslo <mjcn3li-***@public.gmane.org>
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[Charles Brabham [e-mail] [linuxham]]

SGARN transmits ARRL bulletins, NBEMS practice net schedules, emergency
net info when such are activated, and information about receiving the
SGARN transmissions.

No soapbox BS - period... Just information of interest to amateur radio
operators.

73 DE Charles, N5PVL

Post by Michael Coslo mjcn3li-***@public.gmane.org [linuxham]

Post by 'qrv-JH0e/***@public.gmane.org' qrv-JH0e/***@public.gmane.org [linuxham]
The global warming/climate change fraud teaches that bureaucrats,
politicians, & scientists are vulnearable to fads & pressure to
unwisely promote propaganda as fact.

Yay, we need more of this kind of stuff.
Let us now talk about gay marriage, birth control, evolution and religion.
Because this is the exact sort of group that belongs in.
Not.
- Mike -

['qrv-JH0e/[e-mail]' qrv-JH0e/[e-mail] [linuxham]]

This particular thread went far beyond the current tests of ARRL
bulletins- it's to that I was speaking.

...

When the canned data says all clear & I'm looking at a waterspout
in the harbor should I just go ahead & let folks send the bad data?

No matter who is harmed?

Or should there be a way to correct bad data real-time when it
can help people?

When we take on-the-ground real-time 2-way communications out
of the design-mix we set ourselves up for trouble.

If we play the ostrich & ignore incompetence and malfeasance
then we still must deal with unpredicted local events.

I don't know where you live but in the various places I have
lived I've observed isolated storm cells that weren't forecast
and didn't appear in canned data broadcasts.

Other events also occur which impact choices - e.g. hazmat
incidents, fires, snow/dust/smoke zero-visibility on highways,
etc. and it's often way too late by the time bureaucrats learn
about them & broadcast data.

In other parts of the world (including India) there are events
like terrorism which happen suddenly & with no system to update
canned data broadcasts (real-time) citizens can blindly flow into
active-danger.

Again, as I understood it, the thread was speculating as to the
value of this mode well beyond mere ARRL bulletins.

BTW: There's a difference between social/lifestyle debates and
bad science that harms people.

FYI: Government is merely humans & humans make bad choices all
the time.

Sigh ... KD4E

Post by Michael Coslo mjcn3li-***@public.gmane.org [linuxham]

Post by 'qrv-JH0e/***@public.gmane.org' qrv-JH0e/***@public.gmane.org [linuxham]
The global warming/climate change fraud teaches that bureaucrats,
politicians, & scientists are vulnearable to fads & pressure to
unwisely promote propaganda as fact.

Yay, we need more of this kind of stuff.
Let us now talk about gay marriage, birth control, evolution and religion.
Because this is the exact sort of group that belongs in.
Not.
- Mike -

--
David Colburn, KD4E - Nevils, Georgia USA

Safe & Secure Search Engine: duckduckgo.com

Android for Hams: groups.yahoo.com/group/hamdroid
Creative Tech: groups.yahoo.com/group/ham-macguyver
Raspi Alternative: groups.yahoo.com/group/beagleboneblack/

Restored to design-spec at Heaven's gate 1Cor15:22


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Posted by: "qrv-JH0e/***@public.gmane.org" <qrv-JH0e/***@public.gmane.org>
------------------------------------