Nah, just the money, hihi.
On Thu, 7 Sep 2006 5:50 pm, Dave Bernstein wrote:
> Leigh is referring to the fact that the founders of Purify went on to
> create Netflix.
>
> I don't think Reed and Neal used much of what they learned with Purify
> to build Netflix, other than to make sure that it doesn
But Purify gave us Netflix!
On Thu, 31 Aug 2006 2:05 pm, Dave Bernstein wrote:
> C++ was a huge step backward from Ada, IMHO. There'd have been no
> need for Purify if everyone programmed in Ada instead of C and C++.
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas
ghput than at 300 baud and 110
baud under their usual bad conditions.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED]
Sent: Saturday, September 02, 2006 10:18 PM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] Re: ALE QRM is minimal
y an asynchronosous ARQ mode is possible (as Pax) not a
synchronous ARQ mode (as Pactor), unfortunatly...
73
Patrick
- Original Message -
From: KV9U
To: digitalradio@yahoogroups.com
Sent: Monday, September 04, 2006 10:04 PM
Subject: Re: [digitalradio] Re: ALE QRM is minim
Hi Patrick,
Yes, I was afraid of the long frames. They would have to be modified.
And when you get done, it seems it would be better to use an existing
mode or new mode for an ARQ mode for sound card digital.
What do you think about all this talk about very high baud rate digital
sound card pr
Subject: Re: [digitalradio] Re: ALE QRM is minimal
Perhaps with a little FEC and the slower speed and a shorter frame,
Packet might have worked better on HF.
I remember reading that packet requires a rather high S/N ratio to work.
The only redeeming value is that it is an ARQ mode and it can run
Perhaps with a little FEC and the slower speed and a shorter frame,
Packet might have worked better on HF.
I remember reading that packet requires a rather high S/N ratio to work.
The only redeeming value is that it is an ARQ mode and it can run on a
sound card such as with Patrick's Multipsk p
>To be honest, using a high speed baud rate modem on HF and then encoding
>it to
> >slow down the effective bps, seems the exact opposite of what is
> normally done
> >with slower baud rate and higher order modulation to get the higher
> throughput.
Rick,
The actual BPS rate for 188-110B is
Bob,
>Didn't you do the software development for this modem to run under Linux back
>in 1999 or so?
>
>Whatever happened to it and how would something like this perform on say, 6
>meters where I would expect you could use it?
>
>If amateur radio did get permission to use high baud rate modems on
screte baud rate of any individual component of the waveform.
>
> Walt/K5YFW
>
> -Original Message-
> From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED]
> Sent: Friday, September 01, 2006 11:07 AM
> To: digitalradio@yahoogroups.com
> Subject: Re: [digitalradi
Mark,
When I visualize the MT-63 waveform, it seems like many little tones
turning off and on, but all running at a very low baud rate. Thus the
low baud rate for the mode even though it is a huge width of spectrum.
All these years we were told that low baud rates worked better under
poor cond
>If I gave you some parameters of a waveform, what would you use to base
>your measurement of baud rate?
I would look at the data, and see how it is modulated into an analog
waveform. For FSK we know that a 1 produces one symbol, and a 0 another
symbol. MFSK16 the symbols represent
0001
Mark,
I think I understood you to say earlier that the baud rate is based upon
the total waveform. I am having difficulty grasping what that really
means. I have spent a LOT of time researching this on the internet and
not really finding something that I can picture in my mind like I can
with
Hi Dave,
Regarding the Sounding aspect of life, not all stations need to be
Sounding and not all stations need to be Sounding once per hour.
Sounding can be adjusted to accommodate the loading of a network. The
more stations that are ALE active on the same channel less frequent
you sound and
Hi Dave,
I really could not say for sure based on your criteria, depending on
what you mean as asked.
However using ALE and an appropriate Global Allcall or Anycall is
very powerful. If the propo is there for the given frequency at the
given time of the call, if there were 1,000 stations moni
Hi Rick,
At 01:24 PM 9/1/2006, you wrote:
>Can you explain how it is that you can run a symbol rate of 2400 (baud)
>with 188-110A and it works very well running at this extremely high
>speed for HF? And yet other modes, such as Packet, don't work very well
>at 300 baud, and Walt has pointed out t
Hi Mark,
I just seen this after sending you a reply...
You go the idea, you actually put it forth simpler than I did as gave
you too much detail, but yet just touched the tip of it ! I may have
to save your explanation below for a more simple reply in the future,
but I can never seem find my
Hi Mark,
The Mil-Std-188-110B serial (single-tone) mode use M-ary Phase-Shift
Keying (PSK) on a single carrier frequency (1800hz standard) as the
modulation technique for data transmission. The serial binary
information is converted into a single 8-ary PSK-modulated output
carrier where th
After further reading I understand now how it works. The symbol rate is
2400 Baud. The coded (rate 1/2 convolutional ) data rates have differing
interleaving depths. 75 has the highest interleaving depth, and 2400 has
the lowest interleaving depth. 4800 is not coded nor interleaved. Olivia
looking forward to your answers.
>
>Thanks and 73,
>
>Walt/K5YFW
How did I do?
/s/ Steve, N2CKH
>-Original Message-
>From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED]
>Sent: Thursday, August 31, 2006 4:43 PM
>To: digitalradio@yahoogroups.com
>Subject
>The 2400 and 4800 baud is a composite baud rate for the mode/protocol NOT
>the discrete baud rate of any individual component of the waveform.
Can you explain further? I saw that:
"MIL-STD-188-110A serial tone modem is just that, a single PSK carrier
frequency that by the standard is locked
: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] Re: ALE QRM is minimal
Can you explain how it is that you can run a symbol rate of 2400 (baud)
with 188-110A and it works very well running at this extremely high
speed for HF? And yet other modes, such as Packet, don't work very well
at 300
Can you explain how it is that you can run a symbol rate of 2400 (baud)
with 188-110A and it works very well running at this extremely high
speed for HF? And yet other modes, such as Packet, don't work very well
at 300 baud, and Walt has pointed out that government studies had show
that under 5
Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 31, 2006 4:43 PM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] Re: ALE QRM is minimal
Hi Rick,
ALE itself is 8FSK, 125 baud, all protocols on that modem.
After an ALE link, any
Thanks for your hard work on all this stuff, Steve.
When I have used the PC-ALE program and selected Generic Icom nothing
ever happens. So I am not doing something correctly.
As of a couple of hours ago, I received my new "used" Ten Tec Argonaut V
which I may try interfacing and see if I have a
Hi Dave,
I put in a number of years of DoD IV&V and I agree 100% that Ada was
a huge benefit over all the languages, many of them unique to a
particular CPU or embedded platform. I can't begin to tell you how
many languages that I was forced to use in DoD related projects
before Ada came alon
Hi Rick,
ALE itself is 8FSK, 125 baud, all protocols on that modem.
After an ALE link, any protocol, be it an ALE 8FSK or other can be
utilized via other modems. Built into PC-ALE/MARS-ALE is a
MIL-STD-188-110 modem, MARS-ALE also actively supports external
TNC/Modems. PC-ALE passive provides
Hi Rick,
At 01:53 PM 8/31/2006, you wrote:
>The PC-ALE program gave my some difficult times at first with crashing.
>I think I figured that out. At this time I don't see to be able to get
>the program to interface with my ICOM 756 Pro 2 rig through the CI-V.
For that model with the current PC-AL
That's a good view point...I never thought of it that way...you are opening my
eyes.
Thanks,
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 31, 2006 4:02 PM
To: digitalradio@yahoogroups.com
Subject: [digitalradio] Re: AL
Hi Dave,
That aspect of PC-ALE in being updated. For a number of years the
core users of PC-ALE mostly used a common set of HF SSB transceivers
that were well to ALE Scanning use where the PA BPF relays were not
an issue or could be bypassed via command and external PTT was mostly
used and a
Hi Dave,
Speaking of Ada, I developed the MS-Windows AMDS (
https://peoiewswebinfo.monmouth.army.mil/portal_sites/IEWS_Public/rus//AMDS.htm
) for the I-REMBASS Battlefield Sensor System in Ada for the U.S.
Army due to requirements (Ada is a very good large embedded systems
language, it is ver
>>>Google doesn't reveal the origin of this well-known saying, but if
it was indeed an Admiral, one hopes that he led by example, rather
than by exhorting others to take all the risk.
The actual quote is...
"It's always easier to apologize than to ask permission."
Another quote is...
"The nice
The PC-ALE program gave my some difficult times at first with crashing.
I think I figured that out. At this time I don't see to be able to get
the program to interface with my ICOM 756 Pro 2 rig through the CI-V.
It may be possible for those who wish to install some kind of PTT
control running
>I'm not a lawyer either, Walt, but the 300 baud symbol rate
>limitation from §97.305(c)(3) below applies to "a RTTY or data
>emission", not the individual components of that emission IMHO.
I am not a lawyer either, but since the Walsh FEC code is 64 bits, the
character rate is the same as the
Dave,
If I were Hollingsworth and you ask me for an official opinion I would tell you
that it applied to the mode. If you ask me for a verbal opinion, IF I gave one
at all, it would be use what you think is in accordance with good amateur radio
practice and the development of better communicat
Steve,
Ideally, it would be something you would want to share as a
collaborative effort. Without this type of effort on the part of a few
hams (Patrick being one, along with Dave's DX Lab software), we would
not have the incredible synergy that these two programs bring to nearly
any amateur op
> that symbol rate, its to high, it exceeds the 300 symbol/sec limit
> per FCC Part 97.
Why would the symbol rate be an issue in the regulations? Why would
anything like that matter if the data is constrained by bandwidth? Or is
the basis of the "our rules are holding you back" statements by t
ords in the FCC's code.
And, don't let MARS interpretation of Part 97 cloud you view of it.
73,
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED]
Sent: Wednesday, August 30, 2006 2:06 PM
To: digitalradio@yahoogroups.com
Subject: RE: [di
AIL PROTECTED]
>Sent: Tuesday, August 29, 2006 4:33 PM
>To: digitalradio@yahoogroups.com
>Subject: Re: [digitalradio] Re: ALE QRM is minimal
>
>
>
>GA Rick, Patrick:
>
>The stuff from MIL-STD-188-141B that relates the MIL-STD-118-110x
>modem and Data Link Protocols (DLP
gitalradio@yahoogroups.com
Subject: Re: [digitalradio] Re: ALE QRM is minimal
GA Rick, Patrick:
The stuff from MIL-STD-188-141B that relates the MIL-STD-118-110x
modem and Data Link Protocols (DLP) via other standards (e.g.
FS-1052 DLP, S5066 DLP etc.) is all high speed serial tone and as
spec
- Original Message -
> From: KV9U
> To: digitalradio@yahoogroups.com
> Sent: Tuesday, August 29, 2006 10:06 PM
> Subject: Re: [digitalradio] Re: ALE QRM is minimal
>
>
> OK Steve,
>
> I got the impression that the various modes mentioned below were a part
@yahoogroups.com
Sent: Tuesday, August 29, 2006 10:06 PM
Subject: Re: [digitalradio] Re: ALE QRM is minimal
OK Steve,
I got the impression that the various modes mentioned below were a part
of STANAG 5066 and did not realize that there is a separate DLP part of
STANAG 5066. The jar
OK Steve,
I got the impression that the various modes mentioned below were a part
of STANAG 5066 and did not realize that there is a separate DLP part of
STANAG 5066. The jargon gets to be a bit much, but very common for
military type descriptors.
For some reason, the data transfer part of th
I can see the value of ALE in MARS operations, and similar uses, especially
with multiband scanning to determine the best
useable frequency, etc etc.
For general Ham use , for example on 20M, if ALE becomes popular, then the
collisions on the sounding channel will be such that
very few will ge
Hi Rick,
Just time for a quick comment.
Don't confuse STANAG 5066 Data Link Protocol (DLP) as covered in
MIL-STD-188-141B which is a Data Link Protocol at the Physical Layer
with STANAG 5066 which is a network protocol at the Link Layer.
Basically and DLP with the need ARQ support and speed c
Hello Bonnie - what is ALE please? - 73 Bruce.
72/73 - Bruce ve5rc/ve5qrp - QRP-C#1, QRP-L#886, A1 Operator
Enter QRP-Canada's "RUN with RAC" contest -
details - http://www.qrp-canada.com
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Hi Dave,
At 10:46 AM 8/28/2006, you wrote:
>I have reviewed enough of the military documentation to understand
>that they employ dedicated ALE transceivers capable of much faster
>scanning rates.
Really? Please enlighten me, I was under the impression that the ALE
scan rates of 1, 2 and 5 ch
One of the main interests that I have in digital modes is getting a
message through the most difficult conditions, completely intact as
sent, and as fast as possible. I was looking at the STANAG 5066
specifications and test results, (Steve has some below), and quite
frankly I am concerned that
Several key points on Bonnie's comments:
1) RTTY contests are human operating events. There is no automatic RTTY
that I am aware of. Big difference! It is one thing to find an apparent
"hole" to TX into, but are able to back off if it is "busy." ALE would
be nearly inoperative during a contest
Hi Dave,
>At 10:53 PM 8/27/2006, you wrote:
>Does ALE provide some means of reducing contention?
I recommend that to answer all of your technical questions on subject
ALE that you refer the actual Federal, Military and STANAG Standards
which you can find on the Internet quite easily. You can
50 matches
Mail list logo
