Thank you, Mark. That one may work too...but hardly is my favorite.
Nevertheless, it is already there.
73,
Jose, CO2JA
Mark - N8MNI wrote:
Windows Hyperterm
Mark Crosbie
N8MNI
London, Ohio USA
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED]
Thank you, Rick. A friend and coworker told me that he achieved to make
work his Nvidia card with Mandriva. I have not been able so far, using
Mandriva Spring 2007. Mine is GeForce FX5200. I downloaded the driver
pack, more than 100 MB. I have not been able to see where is the failure.
Also,
14236.0
73,
Jose, CO2JA
Well now that I have this new version of Digital Voice, what frequencies
can I find some Digital Voice on, thanks for the help
Russell NC5O
I am daring to post my opinion after reading the previous ones on this
thread.
In general, ARQ modes can insure the delivery of almost 100% correct
transfers. FEC can do nearly alike, but since there is no feedback,
transfers may get corrupted as SNR drops. ARQ + FEC can achieve a lower
. Jose Angel Amador Fundora
Profesor Auxiliar
Departamento de Telecomunicaciones
Facultad de Ingenieria Electrica, CUJAE
Calle 114 #11901 e/ 119 y 127
Marianao 19390, Ciudad de la Habana, Cuba
Tel: (53 7) 266-3445
Email: amador at electrica.cujae.edu.cu
I agree. Static crashes are a powerful QRN source here too.
Guess Olivia would be better, even 8/250 would stand a better chance of
good copy.
In spite of strong signals, if there is no second chance, it does not
matter much how clever Varicode is. It is certainly a big step ahead on
quiet
Where was that? 48 to 54 MHz, or somewhere else?
The only old reference I remember, from a 1936 Frank Jones Handbook is
that 5 meters was 56 to 60 MHz (double of the ancient 10 meters band,
before the 300 kHz snip on its top). I am not really sure of how things
evolved from the old 5 meters
Gil,
TCVR means (T)rans(C)ei(V)e(R).
It explicitly says transceiver in the second line of the message body.
73,
Jose, CO2JA
==
rojomn wrote:
What IS TCVR and where is it found? There is no reference left in your post.
I would advise you to try Puppy Linux and PSKmail Live CD's (baed on
Mandriva) and see if any of them suits your expectations. The latest
PSKmail CD I have includes Wine and some older windows ham apps that
work well. I installed it to my hard drive on a P4 w/ 512 MB RAM.
The latest Puppy I
Thank you, Darrel. I have not downloaded them, will try to get the
images to burn here and give them a test drive.
73,
Jose, CO2JA
---
Darrel Smith wrote:
Jose,
I use the emcpup disk http://www.w1hkj.com/emcpup.html by Dave, W1HKJ
and ham_pup http://pskmail.wikispaces.com/ . I use
Mike Blazek wrote:
John Becker, WØJAB wrote:
Why do I find so so many RTTY signals up side down
on the ham bands.
What ever happen to the old standard?
Mark is hi space is low.
John, W0JAB
Hi, John:
I think the main reason is pretty much all of the other
Paul L Schmidt, K9PS wrote:
Might want to check that one -- I think you'll find it's
derived from BSD, not Linux.
73,
- ps
Ken Meinken wrote:
Actually, the Mac OS is based on Linux.
Once I was told that XP also took adventage of some BSD code.
Jose, CO2JA
kh6ty wrote:
A dual-loop AGC system may help and some high-end transceivers have this.
73, Skip KH6TY
Dual loop AGC is a two sided sword. I have come to find better, and not
necessarily easier, to have low noise, low gain stages before the
filters that will not overload so easily.
The
Rein Couperus wrote:
My comments were meant to be a bit provocative
He! Well, you knew what you were doing
The ONLY point I wanted to make is that if you use a proper filter,
matched to the mode, you will have a lot more fun and hear/work many
more stations. The tradeoff is that
Robert Chudek - K0RC wrote:
I know the AEA PK-232 used 200 Hz, as well as the Heathkit HK-232, but
the Kantronics _KAM_ series all used 170 Hz shift. That was the reason I
switched from the AEA to the KAM products.
What Kantronics models used 200 Hz shift?
73 de Bob - KØRC in MN
Jose A. Amador wrote:
Kantronics and AEA too.
I have a Communications Quarterly issue from the mid 90's somewhere here
in which the author modifies
A PK-232...forgot to include that
its filters for 170 Hz and describes a
great improvement for AMTOR...but also becomes almost useless
Kantronics and AEA too.
I have a Communications Quarterly issue from the mid 90's somewhere here
in which the author modifies its filters for 170 Hz and describes a
great improvement for AMTOR...but also becomes almost useless for 300
baud packet.
AM7910 modems have 200 Hz shift.
Jose,
Andy,
I use only AFSK lately. I find it easier to net, just click on the
waterfall and there you go.
One asset of soundcard generated keying is that usually the tones are a
bit softer, due to the use of phase continuous keying, which may not
be the case with IF generated FSK inside the
It should be better, because of the Walsh code layer.
I have used it for tests among other Olivia modes, but never compared
RTTY and 2/250 Olivia. It worked fairly well, but it was just for
curiosity sake, more than anything else. It was not a serious, well
planned, exhaustive test.
73,
Dave,
Getting only 40 watts out means you still need an audio level 4 dB higher.
Going the easy way, can't you tweak some attenuator in your interface?
73,
Jose, CO2JA
Dave 'Doc' Corio wrote:
I recently discovered that my Soundblaster Audigy card was causing
some problems to my
Tooner wrote:
--- In digitalradio@yahoogroups.com, Jose A. Amador [EMAIL PROTECTED]
wrote:
... but what it does and how it does.
... And certainly MultiPSK does its stuff WELL
... as a peek at its specs will show you.
How about telling us what that 'stuff' is, as you are more familiar
Tooner wrote:
MultiPSK gives an error in Vista 64-bit:
Windows - No Disk
Exception Processing Message 0xc013 Parameters
...
Cancel, Try Again, Continue
Selecting either will still pull up the program. Seems to work fine.
Not a biggie, but in case someone else is using the same
Copied XE1RK very well, SNR between 9 and 12 dB, no interruptions at
all. He was in QSO with some W0 I did not hear AT ALL.
73,
Jose, CO2JA
__
Participe en Universidad 2008.
11 al 15 de febrero del 2008.
Palacio de las Convenciones, Ciudad de la
Similar hardware here, set up in a different fashion.
Onboard AC97 for mic input and TX output
Creative Audigy 2 for RX input and speaker out.
Needs a trick to mute the input RX audio using the effects menu.
You must mute the line input to the soundcard mix, or you will get
the received,
Reviewing what I received here, and comparing with what others have
posted, here and in other groups, I had a pretty good documented
reception almost at the end. I have a particularly clean and strong echo
at 05:58:10, a direct signal with no multipath.
HAARP signals at that moment had a
7102.2, center frequency. Certainly, a busy frequency.
I cannot tell what mode called on top of me, because, robotic or
manned, all pactor link initiations are about the same. Only after you
receive a system ID or a human greeting you get to know. But I guess,
given the frequency, that it was
OK, Bill, I had heard it before, and refrained to comment, but this time
I suffered it myself.
I decided to change the subject to something more appropiate to what I
am referring to.
I have been thinking a bit about all thisI am tempted to try to
monitor using Multipsk with the soundcard
Rick,
I believe they address one of the largest shortcomings of packet: its
modem.
As I understand (I might be mistaken, I have not upgraded my PTC) it is
the same AX.25 protocol with a more robust modulation. In fact, a
different modulation with robust encoding.
73,
Jose, CO2JA
--
Rick
in RTTY mode, at 1500 it
closes Winwarbler and launches Multipsk in Olivia 500/16 and at 1700
it launches VB-Digi/FLARQ in PSK250 .
Anyone care to invent this ?
--
MSc. Jose Angel Amador Fundora
Departamento de Telecomunicaciones
Facultad de Ingenieria Electrica, CUJAE
Calle 114 #11901 e
Yes, but the RS ID signal has to be transmitted.
I believe that Jack refers to some thing like a function PK-232's had to
analyze and identify the mode.
Something could be done using MultiPSK Analysis function.
But for an example, today I attempted to decode a signal tha APPARENTLY
was PSK250
Rick wrote:
The BBS concept (without the internet) was THE system in place for well
over a decade. We initially had worldwide packet HF BBS systems, however
they were less effective after the sunspots declined and the higher
bands became unusable. Packet does not work well on HF. It
Demetre SV1UY wrote:
Hi Jose,
Happy New Year to you and your family.
Happy New Year to you and yours, too (also, to the readers of this list).
As for the early KAMs you are right, but after a while they brought
out new firmware and they fixed the problem. I have an early KAM with
a
w6ids wrote:
snip
I'm sorry, but I have never understood WHY the mode got dropped just
because PSK came alive. I see no reason why it can't be as fun to
use as legacy RTTY. I'm probably odd man out but frankly, after
some trial and error testing, I have little interest in MT63, Olivia,
MultiPSK also has a reverse button for QPSK modes.
Jose, CO2JA
Demetre SV1UY wrote:
--- In digitalradio@yahoogroups.com, Demetre SV1UY [EMAIL PROTECTED]
wrote:
[snip]
And don't forget that really it does not matter if you use USB or LSB
and you can always flick the REVERSE SWITCH. This
mallon wrote:
Yep you sure had that right !
--- Jose A. Amador [EMAIL PROTECTED]
wrote:
It is amazing that the developists in highly
developed places forgets
that the world is far from being equally developed
and connected, with
high speed digital repeater networks, easily
accessible
I have attempted to ignore what matters only to those under the FCC
jurisdiction. Seems that this anti-Winlink regurgitation is an
unavoidable evil...
Going to the facts: Kantronics did not implement memory ARQ for Pactor
in their early KAM's. So, they were inferior to the real stuff, the SCS
It is amazing that the developists in highly developed places forgets
that the world is far from being equally developed and connected, with
high speed digital repeater networks, easily accessible Internet, etc,
etc...
Even more, that you don't have to go to Asia, Africa or anywhere in the
Curious
BUTI guess that AC is needed for that effect.
In that case, it is not static energy...
And noise can be produced both by AC and DC EHV lines, caused
by dark and corona discharges.
73,
Jose, CO2JA
---
Patrick Novak VK2PN wrote:
G'day John
No wonder I'm getting S-9
Rick wrote:
I have to concur with Jose on this. I was a very active HF and VHF
digital ham starting around 1981 with a homebrew XR2206/XR2211 TU that
was from QST magazine and called The State of the Art TU. It most
assuredly was not, but being naive and new to RTTY found it to be a very
Misko,
Most likely the module for the old NIC is no longer adequate for the new
NIC. Look for the proper module and install it.
Jose, CO2JA
Miroslav Skoric (YT7MPB) wrote:
Recently I changed the network card to one based on 3c905-tx chip. It
makes me wonder how to make it working with
Allow me to disagree (slightly) on the beginnings of RTTY popularity.
I would blame Baycom, and the old Mix DOS versions.
I used them (as well as quite few hams I know) way before
PSK31 and the sound card modes appeared. Actually, after using them, I
built a hardware modem that improved a LOT
communication instead of no communication,
there would be times that it would be a good choice. My main interest is
in using sound card modes that work well for emergency communication
with lower power and lesser quality antennas, particularly on HF NVIS.
73,
Rick, KV9U
Jose Amador
Of course it is. PSK31 goes raw, while MFSK and Olivia have FEC added.
So, stand a better chance of being decoded correctly.
When nature starts stirring the gas above, all it reflects (refracts)
suffers the same effect as it had passed thru the house of mirrors,
making giants look like dwarfs
Rud Merriam wrote:
Jose,
Just as you were posting this message I was stumbling on a web site that
agreed with your comment.
With further searching I think I have the relationship. The QEX article has
the statement that to go from the 3kHz bandwidth used you subtract 34 dB
and add 10 log
Rick wrote:
Something that has long been unclear to me is how can we have all these
modes that work far below zero db S/N and yet the Eb/No (energy per bit
relative to noise) can theoretically not go much lower than between 1
and 2 dB below zero dB according to the Shannon Limit?
That's
I thought about the same. On pactor, the doppler perturbation is 31/100
of the signalling rate, thus, results less affected, even without taking
into account the FEC and QRQ strenghts that Pactor also packs along.
73,
Jose, CO2JA
Vojtech Bubnik wrote:
PSK31 failed, bad copy even under good
Rud,
You can see the variations in the ionosphere as a phase modulator
embedded in the channel. So, it will phase modulate whatever you attempt
to get thru it. Actually, it has a phase modulator embedded for each
arriving path.
With differential encoding, and signalling speed higher than the
Who showed up first?
I believe that on the light of the previous discussions, PJ2/WK4Y came
first, he should not have been QRM'd with PSK, MFSK or whatever, and all
activity should have stopped until that spectrum chunk was cleared, as
SSB is authorized on those frequencies in this part of
Dave AA6YQ wrote:
+++ AA6YQ comments below
+++ I do not know the date at which 97.101 was originally instituted or last
modified. Part 97 is available online via
Thanks for the links.
+++ That's not true, Jose. If an unattended station contains a busy
frequency detector, then it can
You are pretty persistent, sir
Dave AA6YQ wrote:
AA6YQ comments below
*From:* digitalradio@yahoogroups.com
[mailto:[EMAIL PROTECTED] *On Behalf Of *Jose A. Amador
snip
Rating automatic operations as extremely unpopular with most is
exagerated. It seems to just reflect a extreme
OK, John. The first compressed BBS software I knew was it. I have not
read otherwise in my old books. But it is possible to have been existsed
and not gotten popular.
About what goes first and second, the first loss is already enough...he,
he...
73,
Jose, CO2JA
---
John Becker, WØJAB
Rud,
Running Linux in an old box requires an old version of Linux, matched to
the box contents.
I used RedHat 5.2 on a 486, and 6.2 on a P1. Mostly, text mode, with a
CGA or the older and less voracious GUI, with 1 MB RAM video cards. The
BBS's ran happy with it, and I even did ftp and http
I see no timestamp in the article. When did this show up? I guess it
must have been on October 1st, since seasons are 6 months out of phase
between the north and south hemispheres.
73,
Jose, CO2JA
---
r_lwesterfield wrote:
This is excellent . . . just what this group needs . . . and I
As Jean Paul Roubelat explains in the FBB docs, the design of FBB B1
compression had to comply with a requisite from the french authorities,
by which message headers must be sent in clear text.
But compression gives a measure of efficiency and allow to double the
traffic or reduce the channel
I had quite good results with 1200 baud on 10 meters.
It was a long time ago, but it was comparable to 2 meters at times.
Jose, CO2JA
--
Rud Merriam wrote:
Assume an RF mesh network operating on 10m.
Is there an advantage in the ability to use 1200 baud? Or is multipath
still a big
John Becker, WØJAB wrote:
***In 1984 they started doing the very same thing to Packed traffic
from one BBS to the other.
As far as I remember, compression started with FBB 5.13 around 1990.
MSYS (1.09 ???) and JNOS (1.10 ???) followed later.
SNIP
***So where do you stand on Packet. It's
Dave Bernstein wrote:
*** more AA6YQ comments
SNIP
*** Then why did you bring up the point that PMBOs can detect ongoing
QSOs in Pactor? If you weren't suggesting this as a solution, then
what was your intention?
I was merely describing a fact, not suggesting anything as you so
quickly
Beware ! Do you see how you act?
Nowhere in my text it says it is useless, it just says it is
unavailable. Isn't it ?
Those are very different words.
Dave Bernstein wrote:
AA6YQ comments bloew
--- In digitalradio@yahoogroups.com, Jose Amador [EMAIL PROTECTED] wrote:
You've argued
Rick wrote:
Dave seems to have the high ground on this discussion. Some of Jose's
comments lately seem to be very specious, which surprises me since he
has normally been fairly logical in his comments. I am concerned that
Jose is claiming that Dave does not accept the hidden transmitter
Dave Bernstein wrote:
AA6YQ comments below
--- In digitalradio@yahoogroups.com, Jose A. Amador [EMAIL PROTECTED]
wrote:
snip
There are physical mechanisms in radio propagation that creates
hidden stations. So do losses, distance, natural obstacles, and
finite propagation paths. I
Dave Bernstein wrote:
+++more AA6YQ comments below
--- In digitalradio@yahoogroups.com, Jose A. Amador [EMAIL PROTECTED]
wrote:
Yes, hidden stations are absolutely a fact of life on HF. Why
then would anyone deploy an unattended station that relies on a
remote initiator to ensure
The fact is that SCS modems REDUCE the power to what is just needed to
keep the link. If QRM shows up, the modem will just attempt to maintain
the needed SNR. And it is not done ONLY in the PMBO but also on the user
end. I have seen powers as low as 5 watts with a 100 watts radio.
Jose, CO2JA
Howard Brown wrote:
Jose and Demetre,
Let's say the two of you were having a nice Pactor QSO on 14.091.00
kHz. Now let's say that N4XX (made up callsign) calls me on the same
frequency using RTTY because he can't hear you.
OK on the made up callsign. But actually, even when not on Pactor,
Dave Bernstein wrote:
### more AA6YQ comments below
--- In digitalradio@yahoogroups.com, Jose A. Amador [EMAIL PROTECTED]
wrote:
+++That's an unreasonable requirement, Jose, especially given that
PMBOs use a protocol that can't be implemented with soundcard
software on a Windows PC
Dave Bernstein wrote:
1. You're using panoramic reception and consider signals anywhere on
your waterfall to be QRM
With a bit of self education people can get to identify what is on the
waterfall.
2. You're operating in a mode other than Pactor
Yes, I do also.
4. Neither snow nor
I guess you are using ntp via modem.
I am interested in finding a way to sync Linux to CHU, WWV or WWVB using
a soundcard and the radio time codes.
Does anyone on the list has already done that? How?
73,
Jose, CO2JA
---
David Munn wrote:
for clock accuracy im using the ntp server of
David,
I do not have full Internet at home, just e-mail.
I have been using CHU with the CLOCK program from F6CTE, for Windows.
I am running XP now, but this is a dual boot PC. That's the reason I
am interested in using the radio to sync my PC, which is necessary to
use WSJT or track
Robert Thompson wrote:
You probably mean Linux kernel-mode AX.25, since JNOS runs fine on
Linux =)
Yes, I meant EXACTLY that. Kernel AX.25 can be fooled to endless repeats
by TFPCX and an inadequate computer (say, a 286 running some terminal
ughh !!) That has been a factual case for
In my personal experience, JNOS first, and Linux in second place, have
been a fairly good match to the radio channel characteristics for e-mail
and web browsing over AX.25 packet radio.
How is that?
Well, JNOS has tweaked timers, or better stated, the ability of
setting channel access
Not at all. It is a mode where humans must decide if a QSO is valid.
EME ops are certainly picky about this. It is meant for EME, it was not
created as another automatic box. Of course, it has proven useful for
extreme HF DX as well, which is not as extreme as EME may prove to be.
I would
I used TERMAN93 with a homebrew FSK modem and my PC in 1997 was a 386 at
25 MHz with 20 MB RAM. I had to tweak the too simple dot clock
oscillator to shift it from 14.312 MHz to the correct frequency of
14.318181MHz.
I never knew about G4BMK Multi. But My PTC-II does that and more, too.
In an animals meeting someone stated that the culprit was a
big mouth animal
...and then the frog and the alligator began blaming each other...
.
.
.
.
John Becker, WØJAB wrote:
Not sure what mode the mode is but should it not be for
all modes?
Case in point - the other evening I was in
Hi all,
I would like to add my two cents.
Demetre SV1UY wrote:
Well it all depends on what is an amateur mode. Is it a mode which is
free of charge? I wish I also had a free of charge radio and computer,
but this is not possible unfortunatelly.
Something that is NEVER argued, but is very
The same happens with pactor, keyboard mode (also on packet).
You type, the message accumulates in the buffer, until you press the
ENTER key, or exceed the buffer set size.
Jose, CO2JA
Rick wrote:
The only mode I have ever used that comes close to the feel of Clover
II, is the new ALE FAE
Roger J. Buffington wrote:
Demetre SV1UY wrote:
First off PACTOR 3 supports DCD control so it can listen before it
transmits. Now maybe the Winlink people have a good reason to have
their automatic MBOS not support the DCD control, but the human
operator that calls an automatic MBO
Vojtech,
That is what is state of the art in the bag of tricks.
Pactor uses convolutional encoding with Viterbi decoding, which allows
maximum likelyhood detection. Which means that the decoder knows,
taking into account the history of the stream what symbols are likely to
come next, instead
A disk that accepts more data.
In Nero terms, you can leave a CD closed (will not accept further
data) or open.
Usually, music CD's are closed. Open disks are mainly used for data, as
music readers will get confused with such a disk.
Jose, CO2JA
-=
Andrew O'Brien wrote:
I guess I need to
Andrew O'Brien wrote:
but when burning an ISO image, I am not given this option.
Seems it is OK, I did realize it quickly enough. An ISO is an already
closed bundle. So, it would take some extra work to open the ISO in a
hard drive and burn the components as separate files. That could
Rick wrote:
Hi Jose,
Do you see any difference between the convolutional code of Pactor and
the Viterbi code in MFSK16 or Patrick's use of Viterbi code in his F
versions of PSK and his FEC of DEX?
I have not studied those in detail. And I know about Viterbi DECODER,
but, would a Viterbi
For a long time already my choice has been (as a packet sysop) to send
the info in the most compact way possible, and operators should know how
to proceed, because RF bandwidth (read it as both occupied spectrum
and time of channel occupancy) is a limited resource, contrary to what
is common
Leigh,
It seems to me that there is still a catch, and is the need, specially
for lazy people (read it both as lazy and easy to annoy) to store
permanent parameters somewhere, so between reboots (easy to happen in
emergency environments at the worst moments) the station does not lose
its
I don't have it yet, just the Mandriva based one...and it worked so well
with my PC hardware that I already installed it in one partition. That
is the way I solved the vanishing configuration problem.
Seems that my LiveCD wish list has been already fulfilled on the Puppy
version.
73,
Jose,
Andy,
I am using two transformers, 0ne 1:1 ratio, 600 ohms (RX), and another
10 kohms : 600 ohms (TX), plus a TIL111 optocoupler for PTT from COM 1
(should say /dev/ttyS0...) using the RTS line to close the PTT contact
thru the optocoupler's transistor. It has worked well with fldigi and
A chain is as strong as the weakest linkone of them mat be the
receiver, another is a sub-standard sound card...so I think Brian is right.
73,
Jose, CO2JA
Brian Kassel wrote:
I don't wish to start any wars, just want you to understand some of
the other possible causes of these
Tony,
You could use any program that uses a spectrum display.
Among the serious ones, Spectran comes to my mind.
It is free and quite good.
73,
Jose, CO2JA
Tony wrote:
What speed do you have in mind?
1000 to 1500 letters per minute; 200 to 300 wors per minute.
The word PARIS
Tony,
You should convert WPM to bauds to apply the formula.
Simpler, and hoping for the best, use a 1500 Hz keyed tone, it allows
for symmetric keying sidebands. As in PSK, do not overdrive anything
in the TX chain, and you should get a pretty decent signal.
With 1200 Hz wide sidebands, you
Usually, the Winlink bulletins specify the frequency as the average of
the channel for P1 or P2, and 1500 Hz above the dial frequency for P3.
It has been long usual to define the frequency of an RTTY signal as the
RF frequency of the mark tone. And so on.
If you want to define univocally
Tony,
Thank you for the basics tutorial.
I would like to comment that those who downloaded the WSJT example audio
files may use them to experiment what is heard. I used Audacity, a free
audio editor, which plays the files and lets you see simultaneously
the wave stream. It is interesting to
If we are talking about DIGITAL VOICE, I believe the answer is receiving
the signal and demodulating it to the DIGITAL baseband stream, verifying
the stream integrity, and then, if tit passes the integrity test,
reshaping (regenerating the pulses) and remodulating. No decoding or
converting
JT65A
Charles wrote:
There is a musical signal which I assume is degital on 14076 KHz at
this time of 2121Z. The bandwidth approximates that of RTTY of MFSK.
What is the mode?
Charles, K0CW
__
V Conferencia Internacional de Energía Renovable,
I am using CLOCK, the companion of MultiPSK (registered) and CHU.
Works very well.
I have good signals on 7335 kHz USB in the early morning and in the
evenings.
Jose, CO2JA
---
WN1Z wrote:
On 5/6/07, Bill P. [EMAIL PROTECTED] wrote:
WWV and my PC are perfectly synced and in time with
It is a windows program that may work in Linux with wine.
I don't know yet if it would work under other emulators
(Crossover Office, etc).
73,
Jose, CO2JA
-
kd4e wrote:
Is this app operating system neutral or is
it dependent on a single OS?
Both VE5GPM and VE5MU will be on 14109.5
Dave Corio wrote:
I can sympathize, but I can top it! Our local ISP was having
problems with their e-mail for several days. I finally called tech
support and told the person that their mail server was having trouble.
His response? We don't have a mail server! Guess we located THAT
It MIGHT be possible that Plusterm23 would work with it. I have used it
with a PTC2.
Make a search on the SCS site downloads.
73,
Jose, CO2JA
---
wa0cqg wrote:
As mentioned in an earlier post, I have a PacComm Pactor I controller
(vintage 1992) with version 2.02 firmware. I did find the
What I think is that we cannot measure both the speed and the roll of a
screwball...When there are too many variables playing, it is hard to
discern, at least, quickly.
Pactor III is undoubtely better thought, but not much different in
performance at low SNR's. Having no adventages, P II may
Andy,
I think it does not matter. RTTY has no envelope and nonlimear
amplifiers (Class C, etc) can be used with it.
Watch the ALC only for modes with an envelope, ie PSKxx.
73,
Jose, CO2JA
Andrew O'Brien wrote:
I'm used to AFSK RTTY and keeping the ALC to a minimum. What about
FSK RTTY I
Surely !
I have used NIST's nistime32 with good results.
With no Internet access at home, I am using Clock 1.6, the companion of
Multipsk with CHU. Using CHU, it works extremely well and failsafe, you
won't get garbage with it. It either decodes well or nothing happens.
73,
Jose, CO2JA
PS:
I guess one second is OK. I have been as much as three seconds away
without consequences.
The timing is to get transmissions organized and allow the stations to
operate in a known time
frame. I would say that, watching the way the program works, more than
five seconds is unnaceptable.
I think
Hisami,
Could you tell us a good time and frequency to attempt working Japan on
40 meters
from the Caribbean using JT65?
It would be interesting to give it a try
73,
Jose, CO2JA
7L4IOU wrote:
Sure, our Digital Segment is 7025 to 7045.
73 Hisami 7L4IOU
tongue_in_cheek
Maybe what we need is a new group for PSK31 and RTTY. Those are mature
modes,
and people who doesn't want to wouldn't be forced to bother about
innovation.
/tongue_in_cheek
Jose, CO2JA
jhaynesatalumni wrote:
Or is the message volume going to die down after everybody here
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