Rick W. wrote:
Hi Paul,
Sounds like you might be getting caught up with some of your other work
and can devote some time again to digital modes:) For those who are not
aware, it was Paul's paper on ARQ concepts that lead to development of
several current uses of ham radio ARQ modes.
Relater issue.
It seems that AORmight be getting out of the DV hardware business...at
least on the amateur radio market.
Will this help foster software DV or cause transceiver manufacturers to
want to build DV into their transceivers just as some have done with PSK31?
73,
Walt/K5YFW
Tony
I don't know, I'm on the [EMAIL PROTECTED] group and there are 10-40
messages a day and sometimes only 1 or 2.
73,
Walt/K5YFW
Jose Amador wrote:
I subscribed to linuxhams back around 1996 or so, and was very useful on
my start with linux, packet and associated stuff.
At some point I had
Please allow me to make one comment on Skip's response.
I have been the operator on duty in a number situations with the Air Force
(especially during Desert Sheild) where where we were handling Priority and
Classified message traffic. Also, I have been in the same situation working in
NDMS
ECM is the Linux, FlDigi/FLARQ/Syspeed suite.
Walt/K5YFW
Jeff Moore wrote:
Walt,
What's ECM ???
Jeff Moore -- KE7ACY
Deschutes County ARES
Bend, Oregon
CN94ic
- Original Message -
From: Walt DuBose
[snip]
NBEMS and ECM are just the kind of programs/applications
Not only are EOC's that far away, but when a hurricane hits the Gulf Coast, you
can have all communications interrupted for much more than 100 miles.
73,
Walt/K5YFW
John Bradley wrote:
on occasion less than 100 miles on VHF and sometimes as little as 30 miles
on 80M HF
I disagree
Skip,
We do plan on using HD, NVIS antennas and data modes as long as they are faster
than I can receive CW (about 15 WPM accurately.
The noise level is what is so high after a hurricane...and it stays that way
for
2-4 days.
Walt/K5YFW
kh6ty wrote:
In that case, it will be necessary to
Moving on to mode/throughput, let me put on my Incident Commander cap...
As an incident commander, I would rather have a printed/written message than
one
delivered verbally. If I know that you have a digital print system, I would
want that and especially if you tell me its error free.
The
What are the current RTTY standards for baud and shift?
Tnx 73,
Walk/K5YFW
Do you have power lines running underground and a transformer box near one of
the three houses?
How about a watersoftner in one of the houses.
Also look for INternet monitoring of electrical power loops (meters), light
poles...even if they are off during the day their keep-alive/on-off circuit
Andrew O'Brien wrote:
I was reading the 30M Digital Group web page (
http://www.30meterdigital.org/ ) and thinking a bit... Much of what
is posted there makes sense to many of the people that are avid users
of the digitalradio Yahoo group. The band is not crowded with
contests, there is
not come up with much. This
may be one of those things we will have to do revisit ourselves.
Recently, some anecdotal experiences were shared on another group that I
found helpful.
73,
Rick, KV9U
Walt DuBose wrote:
Ric,
You have discovered the lost band...6M. Well
viable modes that you know will work. Everyone likes to tout
emergencies and homeland security to support whatever position they wish
to champion. When the real thing occurs and the established
infrastructure fails and amateur radio is needed, you can bet it will be
with basic modes.
Walt
Rud Merriam wrote:
[Stuff Deleted]
I also think more use of VHF for covering NVIS distances is possible. A
nearby digi can connect at times to a Winlink Telpac node in Austin. That is
a distance of 130 or more miles. Since local use of NVIS would be to reach
the state EOC in Austin it is a
Ric,
You have discovered the lost band...6M. Well for that matter 10M and 6M FM.
Going back to my LMR (at the time just commercial 2-way radio) dispatch days,
motorola had a formula that said two stations running 30 watts at 30 ft could
operate 30 miles. 15 miles to a mobile and that was in
Roger J. Buffington wrote:
Demetre SV1UY wrote:
Well,
Do we really need contests, ragchewing, voice qsos, voice nets, cw
qsos, cw nets, on HF? Realy it all depends on what each individual
wants to do! Your millage might vary! It's a hobby OM! Each guys
pleasure might be someone else's
I have found that the Ubuntu LiveCD (6.x) loads nicely on my new Acer Aspire.
The Aspire has an C drive of 90 GB with MS on it and a D Drive (named Data)
with 70 GB formatted.
I would like to load Ubuntu (latest) on the 70 GB part. now and eventually
reformat the C drive with MS on it for
Bill,
I also would be interested in a 9600 BAUD/BPS radio/TNC or 9600 TNC.
As you, I ran a bunch of TCP/IP at 1200 baud after I ran 1200 baud packet and
even a Packet BBS for several years. When I went to 19.2 KBPS, I forgot 1200
baud packet and have not returned. Since then the 19.2 KBPS
See if this isn't what you want.
http://sharon.esrac.ele.tue.nl/pub/linux/ham/pskmail/
73,
Walt/K5YFW
'
jhaynesatalumni wrote:
--- In digitalradio@yahoogroups.com, Rein Couperus [EMAIL PROTECTED] wrote:
You need pskmail version 0.5.4 to enjoy PSK250 arq.
http://pa0r.blogspirit.com
Where
Rud Merriam wrote:
http://www.networkworld.com/community/node/20911
Rud Merriam K5RUD
ARES AEC Montgomery County, TX
http://TheHamNetwork.net
I am a great beliver is using WiFi under Part 97 as well as Part 15. When I
need that extra little boost of power I opt for operation
Rud Merriam wrote:
After a comment off list from Demeter I checked the Pactor specifications.
It uses DBPSK or DQPSK.
Why do the reports about Pactor indicate it is more robust than the QEX
article would indicate?
Rud Merriam K5RUD
ARES AEC Montgomery County, TX
.
The trick is finding just how much of you signal you are going to give to FEC
vs user data and how hard do you want to enforce ARQ.
73,
Walt/K5YFW
Walt DuBose wrote:
Rud Merriam wrote:
After a comment off list from Demeter I checked the Pactor specifications.
It uses DBPSK or DQPSK.
Why do
Brian A wrote:
The digital systems being proposed for emergency use require a rig
with antenna, a computer with soundcard and functional software. Also
an operator trained with the protocol in use. Right?
My perception of emergency situations is that just having a
rig/antenna available and
Rick wrote:
And down the road, there would be nothing stopping the use of the open
MIL-STD/FED-STD/STANAG protocols for higher speeds. It is possible that
even the U.S. could someday use the high speed single tone modems on
HFwith a change in FCC regulations. And maybe they really work well
John Bradley wrote:
The purpose of PSkmail is to give portable and mobile users a wormhole to
the internet.
73,
Rein PA0R
I guess, from my point of view, PSK mail won't really take off until it is
written for windows as well as Linnux.
Despite the linnux user's best efforts,
John Becker, WØJAB wrote:
If I recall this pskmail is a ARQ type program with
a TX RX timing close to Amtor and Pactor. If this is
correct, will it still work with this timing? The last
time a Amtor type linux program come out it could
not do any better then 37.6% of what a TNC did
running
to
communicate with and seems to meet your objectives.
73,
Rick, KV9U
Walt DuBose wrote:
I don't see the current ALE as being anywhere close to the desires of
amateurs...however, it IS a good start.
I look for the future to allow hams to transmit ALE queries on one or several
frequencies on each
Andrew O'Brien wrote:
I wonder if ALE for amateur radio use is in danger of demise as the
result of varying formats, similar to the old video tape format saga.
The public's demand for a method of recording video was such that one
format survived and the industry flourished. With ALE that
. com
mailto:digitalradio%40yahoogroups.com, Walt DuBose [EMAIL PROTECTED]
wrote:
You are 100% correct Rick. There have been many, including myself
who have
encouraged the League to seek input from its members.
Some was started when the League started its little surveys on the
web
bruce mallon wrote:
Bonnie
NO ONE IS AFTER 6 METERS
Seriously...you think not? Open it to commercial/industrial/law enforcement
under shat is it Part 90? and see how fast and how many Motorola sells 100 watt
radios to businesses and law enforcement.
Perhaps not in NYC...but in the SW
You are 100% correct Rick. There have been many, including myself who have
encouraged the League to seek input from its members.
Some was started when the League started its little surveys on the web and now
expanding by asking for technical input.
So let's put on our thinking caps and tell
Copied some nice signals on 20M this afternoon...
KZ1Z on Fell Hell (good signal from Gary but no response to his CQ)
K4VIG (Gary) PSK63 ~13:55 CDT (good signal)
CO2IZ PSK63 ~14:05 CDT (good signal) in QSO with UT5JAB (I couldn't copy him)
Transceiver ICOM IC-746PRO in USB with 2.4 kHz
ave been hesitant to comment on the ARRL seeking comments on a new HF digital
protocol...but let's look again at what they ask...
I. Comments from amateurs concerning development of an open-source
(non-proprietary) data communications protocol suitable for use by radio
amateurs over
/patog/week51/OG/html/1313-3/US07151497-20061219.html
or
http://shorterlink.com/?1OASQ3
Bonnie KQ6XA
--- In digitalradio@yahoogroups.com, Walt DuBose [EMAIL PROTECTED] wrote:
Bonnie,
You didn't opt of the T2DF dummyload antenna did you?
With 175ft of space for an antenna, and two 150ft
Andrew O'Brien wrote:
I'm getting many public and private emails from around the world about
JT65A. Some seem to think I'm involved with the software and how it
was to be used for HF. I'm no expert and have only about 40% of the
software mastered at the moment. I have no more clue about HF
expeditionradio wrote:
Since I put up a new broadband antenna,
my ALE station is on now 24/7
all stations are invited to link.
Netcall: HFL
Transceiver: IC-F7000
Antenna: Broadband Dipole
Power: 50W
Location: Near San Francisco, CA, USA
Scanning:
3596.0
3996.0
7065.0
7102.0
expeditionradio wrote:
--- In digitalradio@yahoogroups.com, Andrew O'Brien
[EMAIL PROTECTED] wrote:
I worked W1CDO via JT65A, check the station info at
http://www.qrz.com/w1cdo
Wow!
On 01 January 2007, while I was running 20W to a backpack whip antenna
Pedestrian Mobile in Hong
Every few years this Arpil Fool's Day joke is added to. I remember the first
time it appeared (many years ago)...it only contained the information about
licenses on serial boxes. Hi Hi
Walt/K5YFW
Chris wrote:
I thought this was to be announced on April 1st.73...Bob C. WU9Q
Andrew
Dave,
In the ARRL's defense, when they looked at WinLink at their Board Meeting,
there
was nothing else on the technology front that could do what WinLink was doing.
And until PSKMail came out, there WAS NOTHING to equal WinLink.
So if everyone hates WinLink, why don't we see hundreds of
Bonnie,
I do think the time is right; but, I think it has been for several years.
I truly believe that to just say we need more bandwidth without showing why we
have not case or change to change the League's position.
Show then in as simple terms as possible why more bandwidth is needed or why
But is 1471 such a large number given that there are about 500,000 active
amateur radio operators in the U.S. and more than 200,000 on HF?
If there were 10 times the number of responses, then the Board might listen.
73,
Walt/K5YFW
Dave Bernstein wrote:
Re: Truthfully from what I hear from
Rick,
You are not in possession of all the facts.
The HSMM was chartered to find out what it would take to do high speed data and
other modes on frequencies above HF.
The report showed what bandwidth we believe would be necessary to accomplish
the
task.
The HSMM Working Group's Basic
Perhaps at the time but I think the after the Board meeting in January and with
a new President thinking on his own, things may be changing...I think are
changing. I think we kicked them in the back side and woke up some of the OFs.
John Champa wrote:
PS - Rick is correct about one item.
-
*From:* Walt DuBose mailto:[EMAIL PROTECTED]
*To:* digitalradio@yahoogroups.com
mailto:digitalradio@yahoogroups.com
*Sent:* Saturday, March 10, 2007 8:10 PM
*Subject:* [digitalradio] Re: Bad PSK signals linears
Ok, here's a question I don't know how to answer since I
Andrew O'Brien wrote:
Hmm, not really ham radio related but my atomic clock just leap
forward an hour at 11.30PM Eastern Time (USA). Did WWV not have the
patience to wait until the official date and time ?
It changes at sometime after midnight UCT.
Walt/K5YFW
Ok, here's a question I don't know how to answer since I don't have the
experience.
Let's say I am running my IC-746PRO on PSK31 and passing disaster relief
traffic
in and out of a disaster area. If the station I am working on the other end
can't decode me and I am also having trouble
One of my sound cards has only one output jack and a mic and line input jacks.
I would like to use a simple splitter cable on the output, one to the speakers
and one to the AF output on the ACC1 plug of my IC-746.
Will this likely cause a problem using Fldigi or PSKMail?
Thanks 73,
I'm hearing/seeing very little ( virtually no) data transmissions on
80/40/30/20M tonight (00:00-03:30).
Walt/K5YFW
Is anyone on the list using a Ten-Tec Juliter?
If so, I would be interested in its performance on sound card digital modes.
Tnx 73,
Walt/K5YFW
Per Crusefalk wrote:
tor 2007-02-08 klockan 21:14 -0600 skrev Walt DuBose:
I finally got a copy of the Live CD which came from
http://sharon.esrac.ele.tue.nl/pub/linux/ham/pskmail/ I couldn't get the
ones
on the other mirror servers to work.
This is great. I now need to run it on this PC
skrev Walt DuBose:
I finally got a copy of the Live CD which came from
http://sharon.esrac.ele.tue.nl/pub/linux/ham/pskmail/ I couldn't get the
ones
on the other mirror servers to work.
This is great. I now need to run it on this PC and fix the CD drive on the
another PC I have, a Dell GX
I finally got a copy of the Live CD which came from
http://sharon.esrac.ele.tue.nl/pub/linux/ham/pskmail/ I couldn't get the ones
on the other mirror servers to work.
This is great. I now need to run it on this PC and fix the CD drive on the
another PC I have, a Dell GX-150, and run it on that
Does anyone know the E-Mail address of W3SZ?
I have been looking at the DSP SDR rig control and would like to know if it
will
control the SDR-1000 and if so, are there any special steps other than on his
W3SZ web site.
Thanks 73,
Walt/K5YFW
Maybe not so much in the U.S. but many in Europe and elsewhere in the world
they
do.
Walt/K5YFW
Leigh L Klotz, Jr. wrote:
I think gmfsk does mt63 so it shouldn't be hard for fldigi to do it.
Does anybody but MARS use it?
Leigh/WA5ZNU
Announce your digital presence via our DX
Linux
distribution?
Even if you don't have it in your particular universe can't you use a
program from the multiverse. Even converting it from one of the package
managers to another package manager that fits your Linux distribution?
73,
Rick, KV9U
Walt DuBose wrote:
Thanks
can't you use a
program from the multiverse. Even converting it from one of the package
managers to another package manager that fits your Linux distribution?
73,
Rick, KV9U
Walt DuBose wrote:
Thanks for the encouragement Frank.
For over 2 years now Gerald had been telling me that Oh yes
That would be a good reason to install Puppy but as I understand it, Puppy is
limited in that most don't consider it a full distribution.
Walt/K5YFW
kd4e wrote:
Maybe this is a dumb question, but once someone compiles a program for
Linux and includes the dependencies, wouldn't this be easily
Please check out windows Vista Ultimate at http://www.degredo.net/
You may find that you want to load it.
73,
Walt/K5YFW
I looked at the SDR-1000 web site thinking again about buying an SDR-1000
because the owner said it could be run with Linux. But the link
(http://kb.flex-radio.com/Article.aspx?id=10104) points you to jDttSP - Linux
Console Software Downloadlink (http://dttsp.sourceforge.net/cvs.html) DttSP
:
--- In digitalradio@yahoogroups.com, Walt DuBose [EMAIL PROTECTED] wrote:
I'm not going to spend $1500 for an SDR transceiver I can't run from
Linux.
Roger's website is the best source for information on getting started.
There will be new information forthcoming by the end of the weekend
Well the $10,000 was just a number I suppose put up for informal discussion an
HF data mode/mode challange project. As I learned, not necessarly a single
$10,000 prize since there are always administrative costs such as evaluating
the
entries. Also you might have a prize for the runner up.
?
73,
Rick, KV9U
Walt DuBose wrote:
Here is an interesting question...
What is the user throughput in WPM or CPS (what you see on your monitor) in
1200
baud AX.25 and the 190-200 WPM user throughput of PSK125?
I have send many, many pure SMTP messages using sendmail over AX.25 KISS
If you place different data on either sideband, its ISB which is illegal or if
not now, may be in the near future.
However, if detecting either sideband independently does not produce separate
data streams, then its not ISB.
DSB would only double the information of one sideband so you would
of overhead, I usually round a byte up to a nice even 10
bits so I would agree with using a slower value such as your 120 cps.
Seem reasonable?
73,
Rick, KV9U
Walt DuBose wrote:
How can 1200 baud = 1320 WPM? In the case of AX.25 baud=bps since a
mark-space=one bit.
An 8 bit ASCII
So is 1200 baud = 1200 bps and 1200 bps (1200 / 8) = 120 cps?
If so then 120 cps (120 / 6) = 20 wps X 60 sec. or 1200 WPM.
That's over 1.5 pages per minute. (Page = 72-76 characters X 60 - 66 lines per
page.)
Walt/K5YFW
Chris Jewell wrote:
Walt DuBose writes:
How can 1200 baud = 1320
of overhead, I usually round a byte up to a nice even 10
bits so I would agree with using a slower value such as your 120 cps.
Seem reasonable?
73,
Rick, KV9U
Walt DuBose wrote:
How can 1200 baud = 1320 WPM? In the case of AX.25 baud=bps since a
mark-space=one bit.
An 8 bit ASCII
Here is an interesting question...
What is the user throughput in WPM or CPS (what you see on your monitor) in
1200
baud AX.25 and the 190-200 WPM user throughput of PSK125?
I have send many, many pure SMTP messages using sendmail over AX.25 KISS mode
with a NOS stack.
I have also worked
James Wilson wrote:
Whats wrong with service packs and AV and security hot fixes? Us
networking guys have to stay in business.
Seriously though I would recommend using Linux over MS. This recent
daylight savings time issue shows how Microsoft can be heavy handed.
Basically you have
I was exchanging E-mails with one of the individuals who was initially involved
in writing the MIL-STD that created multine tone modems and the use of a single
tone with no modulation in PSK modes to track and correct for doppler shift.
They could not understand why hams did not just add
.
Walt/K5YFW
Jim Orcheson wrote:
Walt,
Did you try Google? (193 hits)
Jim VA3JNO
Walt DuBose wrote:
Can someone tell me about FNPSK?
Thanks 73,
Walt/K5YFW
Andrew O'Brien wrote:
--- In digitalradio@ yahoogroups. com
mailto:digitalradio%40yahoogroups.com, Walt DuBose [EMAIL PROTECTED]
wrote:
Can someone tell me about FNPSK?
Thanks 73,
Walt/K5YFW
Walt,
I used it and tested it a year or so ago, it works as advertised
Can someone tell me about FNPSK?
Thanks 73,
Walt/K5YFW
I was pulling your leg...ALE is good for calling nets and having individuals on
standby and not bothering them until you have something for them.
But I like calling CQ...
CQ CQ CQ this is K5YFW Kilo Five Yankee Foxttot Whiskey K5YFW Kiss Five
Young
Friendly Women calling CQ 40 and
or NAK or
control signal? With right control signals you could change the length
of time for the packet burst. But for starters, maybe just a simple
packet size.
73,
Rick, KV9U
Walt DuBose wrote:
One solution suggested to me was that each tone be individually
shaped/filtered
before
and tomorrow I will be useless at work.
73 and CUL,
Walt/K5YFW
Original Message
Subject: Re: [Fwd: [pskmail] Re: BBS for emergency communications]
Date: Mon, 22 Jan 2007 21:59:13 -0600 (CST)
From: Coy Day [EMAIL PROTECTED]
Reply-To: [EMAIL PROTECTED]
To: Walt DuBose [EMAIL
I am going to top post...so flame me. Hi Hi.
Bob, I'm over 65, been a ham for almost 50 years dropped out of engineering to
become a political scientist and somehow or the other became a program manager
for ADPE (automatic data processing equipment and systems...can you say
computer?).
I
Please allow me to make some comments based on research done here in San
Antonio.
As some may know, SouthWest Research Institute is located here in San Antonio
and has done work on high baud rate modes with very poor SNRs. Also they are
part of the current project that is flying a space craft
Nino,
That was kind of my thought...interesting about the Chip64 decoder...I will
have
to study the mode more.
In my post I did day that it was a 100 mile path but did not stipulate that is
was all over land. Also, unless you live in an area where the ground
conductivity changes a large
- Original Message -
*From:* k5yfw mailto:[EMAIL PROTECTED]
*To:* digitalradio@ yahoogroups. com
mailto:digitalradio@yahoogroups.com
*Sent:* Sunday, January 21, 2007 5:41 PM
*Subject:* [digitalradio] IICOM IC-735
Is anyone using an ICOM IC-735 on
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