--- In digitalradio@yahoogroups.com, Tony [EMAIL PROTECTED] wrote:
Does anyone know the approximate bandwidth for
injected audio tone high speed CW? Is there a way
to calculate this?
What speed do you have in mind? The word PARIS used
as a standard for measuring words per minute contains
--- In digitalradio@yahoogroups.com, w6lqr [EMAIL PROTECTED] wrote:
If there is text left to be transmitted, the program will send all
except the last word, no matter how long or short the message may be,
until I hit Enter again.
I imagine this is intentional on the part of the programmer
--- In digitalradio@yahoogroups.com, Simon Brown [EMAIL PROTECTED]
wrote:
What are the common RTTY configurations? I ask because I am in the
middle of porting / rewriting the fldigi RTTY code but have never used
RTTY myself. I'm thinking about combinations of baud / shift / bits /
whatever.
The cross-cultural part of this discussion reminded
me of a broadcast by the late Alistair Cooke. He had
just read a book by a U.S. lawyer, who asserted that
the thicket of regulations in the U.S. covering
every aspect of the law had begun with the Johnson
administration and the War on Poverty.
--- In digitalradio@yahoogroups.com, DuBose Walt Civ AETC CONS/LGCA
[EMAIL PROTECTED] wrote:
Rick,
I hope you or someone is making a list of which modes work the best
on each band and in varying conditions
This harks back to my recent comment on Olivia - how one night I was
getting solid
Just wondering if anybody here knows anything about high speed
Morse. Seems like it was used in the 1940s, maybe earlier and
later, sending Morse at speeds of 500 wpm or so. Transmission
was from punched paper tape, and reception was on ink recorders;
then operators transcribed the received
--- In digitalradio@yahoogroups.com, expeditionradio
[EMAIL PROTECTED] wrote:
Are you tuned so that the phase scope is centered?
What software are you using, and how do you have the threshold
(squelch) set, and the allowable frequency drift?
Bonnie VR2/KQ6XA
Hong Kong, etc.
The software
--- In digitalradio@yahoogroups.com, KV9U [EMAIL PROTECTED] wrote:
If the signal strength was about the same from both stations, then
there
could be ionospheric conditions that may be affecting the GA signal.
Olivia is generally pretty resistant to most interference and the
16/500
mode
Right now I'm copying a QSO where the stations are using Olivia
16/500 on 80M. I'm in NW Arkansas, and the two stations in the QSO
are in Florida and Georgia. I'm getting solid copy on the Florida
station and extremely lousy copy on the Georgia station.
(Presumably they are getting good copy on
--- In digitalradio@yahoogroups.com, [EMAIL PROTECTED] wrote:
Hopefully, your problem is that simple to identify and correct.
So how did you correct it? Did you just turn off everything that
causes noise when you want to use the radio, or did you find
effective ways of filtering out the noise?
Something I don't like is that it now comes up with a lavender
background. Makes it hard to read the blue and gray buttons for
next and messages and older
--- In digitalradio@yahoogroups.com, KV9U [EMAIL PROTECTED] wrote:
My main criticism of Linux is that is has horrific fonts that are not
comparable to Windows fonts and the Linux folks try and make believe
that this is not a problem
I'm not going to dispute your assertion, but I don't
I too have one of those that has not been turned on in quite
a while. For RTTY the sound card implementations are a lot
better, first because you can do better things with DSP, and
second because the PK-232 uses a compromise 200 Hz shift for
RTTY and AMTOR and Pactor whereas the standard shift
So it seems that just by suggesting a particular frequency for
calling someone has stirred up a bunch of digital modes
activity.
One thing I'll suggest is that maybe we don't need to QSY after
establishing a contact. Seems like you can listen on 14078.4
and if it isn't busy you can call on it,
--- In digitalradio@yahoogroups.com, Roger J. Buffington
[EMAIL PROTECTED] wrote:
Excepting Throb (which I have never used) I seem to find most of the
A funny story: I was showing all the digital modes to a ham new
to the territory, showing him what they sound like. So I switched
to Throb,
Well I haven't solved the problem with Digipan, but the new card
seems to work just fine with MultiPSK, and also with Linux, so I
guess I will just forget about Digipan.
--- In digitalradio@yahoogroups.com, Simon Brown [EMAIL PROTECTED]
wrote:
* Use the M Audit Delta Control Panel app to set the Variable Signal
Levels
(Hardware Settings pane).
* Set In1 to -10 (more sensitive).
* Set Outputs to -10dBV (lower output).
Did that.
On the break-out box I use
There is a web site that publishes sound card ratings.
http://www.pcavtech.com/soundcards/index.htm
I need help.
I just tried running multipsk under wine. After not finding the
volume control it put up a box that says something like it is
trying to access through 00 and then puts a mess on
the screen. What incantation are you using to get it to work?
Well it seems that for me an earlier version of MultiPSK does indeed
work under WINE. But the latest version gives this illegal access
through address zero trap over and over.
--- In digitalradio@yahoogroups.com, KV9U [EMAIL PROTECTED] wrote:
Which has made me wonder why so few digital hams send FAX images on the
phone bands.
For me it's because digital=digital and FAX=analog, hi.
it seems to me is this regulation by emission designators.
If I have a black box, and FSK at RF comes out of it, who's to
say whether what is inside is a frequency-shifted oscillator or
a SSB generator being fed with FSK audio tones. Or some
frequency synthesis scheme that is able to shift
There is a web site
http://www.pcavtech.com/soundcards/index.htm
that has quality comparisons on a whole bunch of sound cards.
There was the article on SDR in October 2005 QST where they
say the Delta 44 is a pretty good one to use.
Need a Digital mode QSO? Connect to
I've been going through the RTTY material in some old issues of CQ
magazine. Thought some of you might be interested in the history.
At first most of the operation was in the Eastern U.S. on 2 meters
using AFSK (and I guess it was 2 meter AM, not FM in those days, as
they talk about SCR-522 and
Seems like a lot was being said on this topic recently.
The November issue of Communications of the Association
for Computing Machinery has an article on Hastily Formed
Networks that might be of interest to some of you.
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other
--- In digitalradio@yahoogroups.com, jgorman01 [EMAIL PROTECTED] wrote:
I'm not sure emergency communications is or should be the driver here.
I don't think anyone (or at least most) would begrudge some HF
frequencies be used for 3 kHz data during an actual emergency.
In fact it seems
And then right now on 20M we have a DX station, and a
cacaphony of people calling him spread over 10-15 KHz.
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
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DigiPol:
--- In digitalradio@yahoogroups.com, John Becker [EMAIL PROTECTED] wrote:
At 09:38 PM 10/12/2006, you wrote in part:
I'm just wondering why we don't see more use of 85 or some other
narrower shift in amateur use.
I think that is because there is still a lot of non computer RTTY
--- In digitalradio@yahoogroups.com, Tony [EMAIL PROTECTED] wrote:
Jim
You need to mute the MIC audio on your sound card. That will stop
the WinDRM
digital signal from making it to your PC speakers and mixing with the
decoded voice. Once it starts to decode, WinDRM will playback the
The current (October 2006) issue of IEEE Spectrum has an article
on another software defined radio, made by Ettus.
http://www.ettus.com which is a receive-only item.
Also an item about DRM in Europe, which may not catch on because
there are few receivers you can buy, and they are expensive, and
--- In digitalradio@yahoogroups.com, Patrick Lindecker [EMAIL PROTECTED]
wrote:
I have listened some test in spanish with artificial voice reading
words. It was not too bad. The real problem is to translate voice in
symbols, in a reliable way.
Yes. There was that fairly recent QST article
--- In digitalradio@yahoogroups.com, kd4e [EMAIL PROTECTED] wrote:
Windrm appears to only function under the proprietary
MS version of windows. Have we exchanged one form
of proprietary for another?
Is there a compatible version for Apple and Linux?
It appears to be working under WINE
--- In digitalradio@yahoogroups.com, Andrew O'Brien [EMAIL PROTECTED]
wrote:
I'm monitoring 7296 USB if anyone wants to give a try.
I was listening at 0100Z and heard ALE tones but so far nothing on
DRM.
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of
--- In digitalradio@yahoogroups.com, Joe Veldhuis [EMAIL PROTECTED] wrote:
Hello list. I have been trying to implement support for the Contestia
and RTTYM modes in a fairly new digimode app, fldigi (www.w1hkj.com).
I haven't looked yet, but you might look in the MultiPSK documentation,
since
Does anyone know what of Pactor I/II/III is covered by patents
versus what is proprietary information, or trade secrets? With
patents there is at least supposed to be full disclosure of how
the thing works; and patents have a limited lifetime.
Then we have talked about STANAG-xxx and MIL-STD-xxx
I'm still trying to understand this matter of precision timing.
Is it just that the Pactor mode allows only a very short time
for the ACK/NAK, or is there some synchronization from packet
to packet that must be maintained? Is it possible that one could
write a sound card program that could
I see it mentioned from time to time - are there any servers one
can monitor or exchange traffic with? I don't know where/when to
look for them. It looks like the changes to gMFSK are already
included in the w1hkj gMFSK sources (but have to be enabled at
compile time).
Need a Digital mode
--- In digitalradio@yahoogroups.com, kf8zn [EMAIL PROTECTED] wrote:
QUESTION: How does MMTTY compare head to head with a TNC, such as the
DXP-38 for instance ??
There really are two questions, MMTTY compared with a DSP TNC like the
DXP-38 and compared with an all-hardware TNC like the PK-232
--- In digitalradio@yahoogroups.com, Andrew O'Brien
[EMAIL PROTECTED] wrote:
After giving my son the top-of-the-line but out of date
PC,
There is a certain milestone in life that one of my friends
passed a few years ago. Through the years he had given
his outmoded computers to his kids when
I can't speak to what you buy off the floor at Wal-Mart, but
I'm using one of the computers from their web site, have been
for several years now. The Microtel with 2.4GHz P4 and
it has a Gigabyte mother board that is ATX with a real COM port.
You could look for a used machine with a real COM
I built a K-2 with all the addons except for the DSP audio,
and used it quite a bit for digital modes. There were some
problems with frequency drift in some modes. e.g. in PSK
if the receiver uses AFC there was no problem, but in MFSK
it would drift more than the receiver software could
I'm willing to believe that the timing tolerances in -tor modes
are so tight that ordinary PC operating systems cannot cope with
them the way a dedicated processor can. What I don't understand
is why the tolerances need to be so tight. The transmitter sends
a packet and then listens for an ACK
That should work fine. As a matter of academic curiosity,
what kind of TNC are they using in MARS these days?
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
DigiPol:
I don't know offhand. I googled for software defined radio
and kit and came up with, among 39,000 other things, the
SoftRock-40 - but that looks a little different from what
my friend has. But I think it came from one of the QRP
equipment suppliers. His was on two little PC boards.
A few quibbles. Accuracy is a more-or-less thing. I used
RTTY a lot back in the late 1950s, and even when copy isn't
perfect you can have an enjoyable QSO because you can pretty
well make out what the other guy is saying. With somewhat
worse conditions you can't and you give up. But imperfect
--- In digitalradio@yahoogroups.com, John Becker [EMAIL PROTECTED] wrote:
What's this animal sound like?
Got a WAV file of it?
Don't think I have run across it as yet.
Just install the software, go into transmit, and listen to what it
sounds like with the PC speaker or headphones.
--- In digitalradio@yahoogroups.com, Andrew O'Brien
[EMAIL PROTECTED] wrote:
The experimental digital operators were nowhere to be found. I saw
NO ONE
using Throb, Olivia, DominoEx, or Hell in Field Day.
I for one consider a contest weekend to be a time to avoid the radio and
play with other
So there's still a lot of Clover activity? Maybe I don't listen there
enough, but then I don't hear enough to justify listening there.
All I was pointing out is that Clover is a 500 Hz wide mode and for
some reason it operates below the 14070 PSK band.
Of course on a contest weekend all band
Aside from what's been said recently, once upon a time there
was a lot of Clover operation in the range 14064.5-14066.5
and such. Since there is hardly any Clover anymore, why don't
we operate other digital modes down there?
Yahoo! Groups Sponsor
In digitalradio@yahoogroups.com, Don dhobson123@ wrote:
Just wondering why there is no PSK31 activity on 30 meters? Seems like
I guess it's like that restaurant that Yogi Berra talked about.
Nobody goes there anymore. It's too crowded. except in this
case nobody goes there because
Just took part in a 3-way Throb QSO on 40M tonight. Been
quite a while since I have heard any Throb on the air.
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
DigiPol:
--- In digitalradio@yahoogroups.com, KV9U [EMAIL PROTECTED] wrote:
value for such use. It would be surprised if many would use Pactor
anymore for conversational use as we did years ago (and Amtor too)
because the keyboard modes are reasonably fast for many typing speeds
and are often
--- In digitalradio@yahoogroups.com, Andrew O'Brien
[EMAIL PROTECTED] wrote:
Try Multipsk, it supports MT63.
I talked to someone recently who asserted that IZ8BLY MT63 works
much better than MT63 under MultiPSK. Can anyone confirm or deny?
I haven't heard enough MT63 lately to make a
Maybe we cynics should start putting in other computer models as a joke.
How about computer here is a PDP-8 or computer here is IBM 704?
(Now that one could get you into an interesting talk about power
consumption!)
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other
--- In digitalradio@yahoogroups.com, Mel [EMAIL PROTECTED] wrote:
I use Digipan to operate on BPSK31, I transmit for a couple of hours
and then switch off the computer to have a bite to eat.
When I return to the shack, I switch on the computer, load up Digipan
and the screen shows PSK63,
The number of developers of soundcard RTTY software is pretty
small, so I think it's reasonable to ask them to make software
interoperable with a mechanical TTY. K6STI was concerned
about this with his RITTY program and worked out end-of-line
processing that is satisfactory. W1HKJ has just done
--- In digitalradio@yahoogroups.com, John Becker [EMAIL PROTECTED] wrote:
(just between you and me, maybe some day the software
writers will fix their software so it send a CR/LF after
72 charters. Or the computer operators will hit the enter
key at the end of a line and forget all about word
I went to an IEEE meeting last night, where the speaker was K5XS
Bernie Skoch, Brig. Gen. USAF (retired), consultant to DOD and various
companies. He talked mostly about interoperability issues among
the main armed services, various other government agencies, and
other nations.
One of his slides
Wonder if you could put a time or a serial number in beacon
transmissions. Reason is that I am not copying all of them,
and with that additional information I could monitor for a
while and see what fracton of them I am getting.
Need a Digital mode QSO? Connect to
I haven't spent the time getting my head around it, but I did
copy your beacon just now. Also tried a call but didn't get
anywhere.
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
MultiPSK does CW
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion)
Yahoo! Groups Links
* To visit your
--- In digitalradio@yahoogroups.com, N6CRR [EMAIL PROTECTED] wrote:
Any of the Linux heads reading this reflector know of a good Linux
based sound card Packet program?
There is the thing called PSKMail, which used a modified gmfsk to do
some kind of packet-ish communication; but I haven't
I was just in an Olivia QSO on 20M and had a pactor station fire up
right on top of us and still got nearly 100% copy. I don't think you
can do that with PSK.
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
The MixW Reflector :
In the README-hkj.txt file it says to be sure you have the hamlib
directives properly set. Where do you go to see them?
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
DigiPol:
It's my understanding that DominoEX is supposed to replace DominoF.
I can't say about the others - certainly there are more modes out there
than people are using.
And then some modes I would call archaic but not obsolete. Such as
Baudot RTTY - there actually seems to be an increasing number of
I've been maintaining the digital modes software for W5YM,
the University of Arkansas club station. Now we have a
blind member of the club, and he has trouble using the digital
modes because they are so visual - like tuning to the waterfall.
I'm wondering if people can suggest ways around the
WILLIAM JEX QUICKLY CAPTURED FIVE DOZEN GOOD REPUBLICANS
(A Western Union test sentence from the 1950s. Of course one might
question whether there exist as many as five dozen good Republicans,
but that would be bringing partisanship into the issue.)
Yahoo! Groups
I hope this doesn't come off sounding like a commercial, as it isn't
intended to be and I have no connection with the company, just thought
it might be of interest to some people. These days they don't make
laptops with real RS-232 ports. www.heartlandamerica.com seems to have
a lot of older
Since no one else has mentioned it yet, I'll mention that there is a
program FNPSK which is designed for running PSK31 as a net.
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A few years back I was promoting an event called Green Key Night
that was held on February 20, commemorating the date that FSK
was first allowed in 1953 for radio amateurs using the HF bands.
Never got much interest.
Jim, W6JVE
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And another option is that I never watch TV. Tho I do own an analog
TV set that I use with DVDs and VHSs and Laser Discs.
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Another consideration is that in a contest you aren't needing
the best weak signal performance anyway. Typically the band
is full of strong signals and you won't copy the weak ones for
the strong ones on top of them.
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Get
--- In digitalradio@yahoogroups.com, Ron Walters [EMAIL PROTECTED] wrote:
Many of the help files are WEB based and not a part of the download.
Do
you have a web connection when you ask for Help?
Ron W4LDE
The help files are right there in the directory with the software,
usually in a help
Various soundcard digital programs have the help files in html.
If you don't have Internet Explorer installed, but do have some
other web browser such as Firefox, then when you click on the
help button in the program you get told that there is no such
file or directory with the name of the help
--- In digitalradio@yahoogroups.com, Brad VK2QQ [EMAIL PROTECTED] wrote:
And they gave the wrong answer. The code
wasn't just in use in the late 1800's, it was the basis of every telex
message until the early 1990's when it fell from fashion.
Well, almost. I haven't seen the album cover, but
--- In digitalradio@yahoogroups.com, Mark Milburn [EMAIL PROTECTED] wrote:
I would like to think about having a club project for
building interfaces to get some additional members on
Not to be discouraging, but this is a complicated undertaking because
there are so many different kinds of
--- In digitalradio@yahoogroups.com, Skip Teller [EMAIL PROTECTED] wrote:
Installation is automatic, and DigiPan looks beautiful now!
Are you running DigiPan under Wine? I must have missed that.
I tried it once and it couldn't open the COM port so I gave up.
The K3UK DIGITAL MODES
How about announcing the dial frequency + or - the offset.
If I say 14,070 + 1500 I mean the dial is set to 14,070 and I am
using USB and on the waterfall the line is at 1500. Hence the
transmitted carrier frequency is 14071.500 And if I'm using LSB
I can say 14,083 - 2125 and that means the
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