The document that the author of ROS originally published, Introduction to ROS:
The Spread Spectrum, contains a good description of frequency-hopping
spread-spectrum (FHSS) techniques. Section 4 describes taking a 250 Hz wide
mode (MFSK16) and spreading it over 2 kHz by shifting the center
Hi Dave, ( AA6YQ )
Thanks. I might just do that next Monday.
I understand it to be, some help/emergency phone line?
Lost the number, so if you have it, please send it to me.
I am also very much interested in your definition of ss.
I have not been able to find anything, Wikipedia really
does
Hi John
I can confirm .There is no difference in the transmitted spectrum.
Here some comparing done with DL4YHF's Spectrum Lab
ROS v2.6.1
x's http://home.broadpark.no/~saanes/bilder/ROS%20v2.6.1_xxx.jpg
Idling http://home.broadpark.no/~saanes/bilder/ROS%20v2.6.1_idling.jpg
ROS v1.6.2
On 03/04/2010 09:10 PM, pd4u_dares wrote:
All wouldn't have happened if it was not claimed by some that ROS is illegaal
in the US. Since there is no official publication on this by the FCC, ROS is
neither legal nor illegal. So the first claim by some users of ROS was in
error. Jose's
--- In digitalradio@yahoogroups.com, iv3nwv nico...@... wrote:
I also agree that amateur bands are not just an experimenter's playground but
this implicitly means that they are not exclusive to communicators.
If I were an experimenter I would like to see acknowledged my right to make
my
I was helping a ham get set-up for digital modes recently and turned
to the issue of interfaces for digital modes. I researched the price
for a Rigblaster Pro and was shocked that they sell for $299. My
friend settled for another interface that cost $69, new. I was
wondering about interfaces
I had the idea that a reason spread spectrum was not legal was that the use of
a psuedo-random spreading sequence lent itself to the development of an
unbreakable code (or at least a difficult to break code) that would allow
secret communications by people inimical to the good old USA. And I
It is still valid, Ted, and is described such in the Wikipedia
http://en.wikipedia.org/wiki/Frequency-hopping_spread_spectrum. I think
the FCC rules are definitely out of date, but identification is
essential to being about to share frequencies, so any code that prevents
that has no place on
Dear amigos:
I am really concerned about the damage to the amateur radio hobby generated by
a NON AMATEUR in Spain that wrote a software program for a new digital
mode that very clearly to me, without any doubts , is a FHSS communications
mode.
I wrote e-mail messages to this person, and
On Sat, Mar 6, 2010 at 9:12 AM, Arnaldo Coro acoro33...@yahoo.com wrote:
So, amigos at digital radio , my advise , and that's what I am going to
do, is to
alert ROS users of the possibility that the author of the software may even be
attempting to use it for other purposes that are not
Thanks for the caution, Arnie. I will definitely scan my computer for
viruses and trojans after installing running loading ROS. The fact that
it already sends automatic emails makes one imagine what else might be
possible once I have configured it with my email address!
73 - Skip KH6TY
AA6YQ comments below
From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On
Behalf Of rein...@ix.netcom.com
Sent: Saturday, March 06, 2010 5:50 AM
To: digitalradio@yahoogroups.com
Subject: RE: [digitalradio] Re: ARRL/FCC Announcement about ROS
Hi Dave, ( AA6YQ )
The basic sound card interface has never been very high. Look for one called
Rascal. Here is one link to where to get them.
http://www.packetradio.com/
I don't recall the price from years ago, but it was under $ 50 then.
The kit was even less. Almost just the cost of the parts if bought in
El 05/03/2010 13:15, g4ilo escribió:
Someone really should try to find out whether_this_ Jose has a call. Because
if he isn't a licensed ham he hasn't much to lose by any trouble he causes.
I did try, but failed. But if he has a call, why does he keep it a secret?
Julian, G4ILO
No, that is
El 06/03/2010 4:49, rein...@ix.netcom.com escribió:
I thought, that there has to be a direct specific connection
between the transmitter and the receiver on how to retrieve
the info from the spread spectrum. ( SS for dummies )
This makes it useful for the militairy, for who it was
originally
I agree with Nino, theoretically it is correct to use as much bandwidth
as possible, 3 kHz in the ROS case, but due to the small spreading, the
ROS signal does not have a negligble level compared to others on the
channel, so it is a halfbreed, it has spread spectrum characteristics,
but does
A lot of hams have had problems with the RASCAL and the poor support and
commications from the vendor of this product...See Eham reviews.
http://www.eham.net/reviews/detail/1384
I use and reccomend the Donner interface here with no issues and they are only
$40... they come with all the
Lessons from Troy http://xaddr.com/b8kj
It is, of course, fiction.
--- In digitalradio@yahoogroups.com, Andy obrien k3uka...@... wrote:
On Sat, Mar 6, 2010 at 9:12 AM, Arnaldo Coro acoro33...@... wrote:
So, amigos at digital radio , my advise , and that's what I am going to
do, is
One more question that I am almost afraid to ask, for risk of generating more
approbation from those who can't bear to see any criticism of their new toy,
but in view of the reported statement from Mr Ros that the FCC will have to
pay me to see my source code will the source code for this mode
Hi Steinar,
I was making fun of a statement posted by someone else earlier.
It seemed to me that the shoe was on the other foot.
I have found this whole affair most distasteful and definitely not
in the spirit of amateur radio.
73 - Bill KA8VIT
To: rosdigitalmodemgr...@yahoogroups.com;
I became a ham since 1989 and my Elmer back then was a crusty old 1x2 in his
80's. Of all the sage advice he gave me, here is the one that he emphasized
the most.
Don't ever ask the FCC to rule on anything about ham radio. If you do poke
that sleeping giant in the eye with a stick you will never
I was listening down around 14.077, just above some slow FSK mode which I think
is JT65A. The JT65A was tuned quite low pitched in my receiver, and I could
clearly see images of it over to the right. Judging by the spacing of the
image tones I was seeing an audio third harmonic of the original
While harmonics from modes like PSK31 are common, I have never seen a JT65A
signal generate what you describe. Interesting.
Andy K3UK
On Sat, Mar 6, 2010 at 11:28 AM, g4ilo jul...@g4ilo.com wrote:
I was listening down around 14.077, just above some slow FSK mode which I
think is JT65A. The
Something was telling me not to install this software, maybe it's a good thing
I didn't.
From: Arnaldo Coro acoro33...@yahoo.com
To: digitalradio@yahoogroups.com
Cc: David Sumner k...@arrl.net; Richard Moseson w...@cq-amateur-radio.com
Sent: Sat, March 6, 2010
But it was a good read anyway :-)
From: g4ilo jul...@g4ilo.com
To: digitalradio@yahoogroups.com
Sent: Sat, March 6, 2010 9:24:20 AM
Subject: [digitalradio] Re: What is SS? Senor Ros is not an honest person !
Lessons from Troy http://xaddr. com/b8kj
It is,
El 06/03/2010 8:34, Andy obrien escribió:
I was helping a ham get set-up for digital modes recently and turned
to the issue of interfaces for digital modes. I researched the price
for a Rigblaster Pro and was shocked that they sell for $299. My
friend settled for another interface that cost
On Sat, Mar 6, 2010 at 9:12 AM, Arnaldo Coro acoro33...@yahoo.com wrote:
So, amigos at digital radio , my advise , and that's what I am going to
do, is to
alert ROS users of the possibility that the author of the software may even
be
attempting to use it for other purposes that are not
El 06/03/2010 9:01, KH6TY escribió:
The other possible problem is wide-spreading spread spectrum. There
was a failed attempt about 5 years ago by the ARRL HSMM (High Speed
Multi-Media) proponents to allow spread spectrum on the HF bands with
the argument that the signal is spread so widely,
Just my 2 cents, but I use the SignaLink USB interface. Considerations
in its choice:
1. Cost -- $99 from DX engineering. Mine was back ordered at that time,
but showed up in 3 weeks.
2. Included the interface cable for my FT-817ND in that price. If I want
to run another rig, I'll simply get
El 06/03/2010 11:28, g4ilo escribió:
I was listening down around 14.077, just above some slow FSK mode which I
think is JT65A. The JT65A was tuned quite low pitched in my receiver, and I
could clearly see images of it over to the right. Judging by the spacing of
the image tones I was seeing
Please get you last comments in on this ROS issue by 0500 UTC Feb 7.
This will give everyone a chance to cathart , get the issue fully
vented. Then I am going to invoke a cooling off period when no posts
will be allowed for 24 hours. Thanks.
Andy K3UK
Owner.
Hello
All,
Research Mr.Bill Pasternak, WA6TIF's piece about agentNN
73 Rein W6SZ
http://forums.qrz.com/showthread.php?t=239326
73 Rein W6SZ
I did a Bing search of his name. It came back with a Windows Live Profile
page for him with a picture. States he is 29, and a telecommunications
engineer.
Don
KA5DON
Hello Jose,
This was clearly a case of overloading, most likely on the transmitter
side, over driving perhaps the sound card or the transmitter being
over loaded by the sound card's signal.
The K3 is too good a receiver, but it is part of your receiving chain.
Properly running WSJT should not
Hello Jose,
Thank you for addressing my questions.
I am not going to order that book, even I could find
a copy. And I do not live close enough to libraries
carrying it.
We need a SS for Dummies. In any case, thank you
for addressing the question.
Kind Regards,
Rein W6SZ
-Original
Hello Dave, ( AA6YQ )
I see your point with the use on HF
Thanks for your thoughtful reply.
73 Rein W6SZ
-Original Message-
From: Dave AA6YQ aa...@ambersoft.com
Sent: Mar 6, 2010 7:03 AM
To: digitalradio@yahoogroups.com
Subject: RE: [digitalradio] Re: ARRL/FCC Announcement about ROS
http://www.thesauro.com/nietoros/
73 Rein W6SZ
i will not elaborate on the on going debate of ss. just do a google seach on
the theory of spread spectrum. that should anwser all ur questions. i've been a
two way radio repair tech and system installer for 49 yrs so i know what ss is.
my question is this: what frequencies are being used, in
I've recently read several digital ops repeatedly ominously state hams should
never ask the FCC about digital issues because the FCCs answer might be
extremely bad for the hobby, aka, never tickle a sleeping dragon.
This sounds new to me, outside of the digital world, hams constantly pester the
No, and sorry if I misled anyone. I do have both WSJT and MultiPSK, I
nowadays use MultiPSK mostly for HF, but I have actually not come across
such a case
particularly with JT65. Of course it has been more than usual for some
particular ops on 14070, but in spite of the apparent simplicity,
I think the comment was broader based. Never go to the FCC for anything.
They want to be as hands off amateur radio as possible. They expect you
to interpret the rules and act accordingly, that is part of what your
qualification to hold a licensee is about.
vinceinwaukesha wrote:
I've
Hello Jose,
I always set the sound card volume , the modulation, that when changing the
volume setting , the output of the transmitter will follow in a linear fashion.
This is very important in particuar for WSPR and WSPR-QSO modes.
73 Rein W6SZ
--- In digitalradio@yahoogroups.com, Jose A.
--- In digitalradio@yahoogroups.com, Edward ewbuck2...@... wrote:
i will not elaborate on the on going debate of ss. just do a google seach on
the theory of spread spectrum. that should anwser all ur questions. i've been
a two way radio repair tech and system installer for 49 yrs so i know
google or search spread spectrum. the term speaks for it self. FREQUENCY
hopping several times per second. the receiver tracks it. specially built
radios. military first used it to foil the enemy on eaves dropping. now it is
used commercially. ham radio freq does not change, just the mode of
Generally speaking, USA's FCC rules for ham digital technology are sadly
antiquated, and many common digital methods could fall into gray areas of the
rules, or prohibited areas of the rules depending upon how the rules are
interpreted or how the method is described. Overly-complex and
google or search spread spectrum. the term speaks for it self. FREQUENCY
hopping several times per second. the receiver tracks it. specially built
radios. military first used it to foil the enemy on eaves dropping. now it is
used commercially. ham radio freq does not change, just the mode of
Further to our earlier conversation about using many of the concepts
in ALE networks for establishing digital mode QSOs, this weekend I
will be using ALE technology to scan the following frequencies
USB VFO frequencies plus standard ALE center frequency of 1625Hz.
3583
10143
14073
18103
24923
The HSMM working group never proposed the use of spread spectrum. It was
interested in getting the maximum data rate into limited bandwidths. SS does
the opposite of what the HSMM WG was interested in. It spreads limited amounts
of data over the maximum bandwidth.
The actual proposal was to
I can achieve a silent scan with PC-ALE and a TS-2000 but not with
Multipsk. Has anyone figured out if it is possible with Multipsk? I
know that with PC ALE you put the TS-2000 in split mode and it scans
with VFO B, then switches to VFO A (in the same frequency) before
transmitting a sounding .
Thanks, John. I stand corrected. It has been quite a few years since
that time and my recollection was that the argument was that the signal
lasted such a short time on any one frequency that it would not create
significant QRM, but that also may have been a misunderstanding on my
part, or
I have it figured out now. The TS2000 is scanning silently with
Multipsk in ALE400 mode.
Andy K3UK
On Sat, Mar 6, 2010 at 5:48 PM, Andy obrien k3uka...@gmail.com wrote:
I can achieve a silent scan with PC-ALE and a TS-2000 but not with
Multipsk. Has anyone figured out if it is possible with
PSE react to the software, not the person Julian...
--- In digitalradio@yahoogroups.com, Jose A. Amador ama...@... wrote:
El 05/03/2010 13:15, g4ilo escribió:
Someone really should try to find out whether_this_ Jose has a call.
Because if he isn't a licensed ham he hasn't much to lose by
Go on the ros homepage
There you find qrg
_
Von: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] Im
Auftrag von Edward
Gesendet: Samstag, 6. März 2010 19:07
An: digitalradio@yahoogroups.com
Betreff: [digitalradio] frequencies for ROS
i will not elaborate
In WSPR it sometimes happens that stations are spotted +50Hz and -50Hz their
dial frequency.
--- In digitalradio@yahoogroups.com, Andy obrien k3uka...@... wrote:
While harmonics from modes like PSK31 are common, I have never seen a JT65A
signal generate what you describe. Interesting.
Andy
I disagree , the software seems good to me...the person is the issue.
--- In digitalradio@yahoogroups.com, pd4u_dares p...@... wrote:
PSE react to the software, not the person Julian...
--- In digitalradio@yahoogroups.com, Jose A. Amador amador@ wrote:
El 05/03/2010 13:15, g4ilo
Agree Andy
la5vna Steinar
On 07.03.2010 00:49, obrienaj wrote:
I disagree , the software seems good to me...the person is the issue.
--- In digitalradio@yahoogroups.com, pd4u_dares p...@... wrote:
PSE react to the software, not the person Julian...
--- In
nice site, rein, got it saved.
73
don kf4cup
On 3/6/2010 1:33 PM, Rein A wrote:
http://www.thesauro.com/nietoros/ http://www.thesauro.com/nietoros/
73 Rein W6SZ
What's the problem you have 222MHZ and up
From: expeditionradio expeditionra...@yahoo.com
To: digitalradio@yahoogroups.com
Sent: Sat, March 6, 2010 3:40:42 PM
Subject: [digitalradio] Re: Anecdotes about FCC inadvertent hostility toward
ham radio digital
I think all of us have beat this ROS horse to death and changed nothing so lets
move on to something positive..!! 73 Alan
Hello All,
I found this on the VHF reflecor in the US:
by Bill Pasternak WA6ITF.
WA6ITF is or was publishing an Amateur Radio Newsline and
had contacts in the agency due too his present ot previos
work ( Radio TV broadcasting )
In thr past I havebeen in contact with him about translating
German
Hi Andy,
Don't you mean March 7th, 2010? Just thought I would ask.
Tom, Wd8MBE
Yep.
Andy
On Sat, Mar 6, 2010 at 7:00 PM, Tom Phelps wd8...@rocketmail.com wrote:
Hi Andy,
Don't you mean March 7th, 2010? Just thought I would ask.
Tom, Wd8MBE
Jose,
if you are referring to me I'm not saying that theoretically it is correct to
use as much bandwidth as possible. This is a conclusion you have drawn on your
own.
Using a 100 kHz bandwith to communicate information at a rate of 1 bit/s could
by sure approach any channel capacity, but the
ROS still had problems in version 1.6.3 and it is easy to notice that it
works in a free channel, but does not stand burst errors (in fact,
errors long as a packet or pactor frame length) and its ability to copy
crumbles. That does not happen, at least so noticeably, with JT65 or Olivia.
04:48 ab9ft DOMINO 3584013
04:47 KA2TMU/2 DOMINO 3584008
04:37 AB9FT DOMINO 3583023
04:05 W3YJ OLIVIA 3583030
03:47 w3yj OLIVIA 3583498
03:45 W3YJ OLIVIA 3583498
03:03 nx8a OLIVIA 3584770
22:01 KB7RLY OLIVIA 18104067
21:16 N6CRR OLIVIA 14073571
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