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PA2AGA > HDDIG 15.11.99 23:21l 205 Lines 6031 Bytes #-9683 (0) @ EU
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From: pa2aga
To: hd_broadcast@pa2aga
Subject: HamDigitalDigest 99/292C
X-BBS-Msg-Type: B
elsewhere.
My personal preference is for the final two letters to be in lower case
as I find it makes the code more readable, but others find the opposite.
I have never heard of the use of "zz" in the way described, but not
being an habitual contester I am perhaps not well qualified to comment!
Rick
NB: Please reply to... <mailto:richard@sandalmagna.demon.co.uk>
--
Richard Sterry G4BLT <http://www.sandalmagna.demon.co.uk/radio/>
>.
------------------------------
Date: Sun, 14 Nov 1999 20:00:23 GMT
From: galactica@DELETE_THIS.telinco.co.uk (HJS)
Subject: Source document for Maidenhead ?
On Sun, 14 Nov 1999 05:34:25 +0000, Ian Wade <ian@dowrmain.demon.co.uk> wrote:
>In article <19991113.2316.9904737snz@microvest.demon.co.uk>, Anthony R.
>Gold <tgold@microvest.demon.co.uk> writes
>
>>I suggest you try mailto:john@kirsta.demon.co.uk.
>>
>
>Thanks Tony, I'll drop him a line.
If that fails, EMail me. I'm sure I have most of the Basic source
from GM4ANB as published in RadComm quite a few years ago.
It's only Basic, but it may help.
--
___________________
HJS +
>.
------------------------------
Date: Mon, 15 Nov 1999 11:36:54 GMT
From: magne@radar.no (Magne Mæhre)
Subject: Source document for Maidenhead ?
In article <M4cuOCf5ci5lkVUtaerHn7nWJ3+r@4ax.com>, Paul Keinanen
<keinanen@sci.fi> wrote:
>To overcome this problem, the World Grid System 84 (WGS-84) was
>created and it is use by the GPS satellite navigation system.
It's actually "World Geodetic System (1984)", but I guess you
already knew that :-)
--Magne / la1bfa
>.
------------------------------
Date: Sun, 14 Nov 1999 14:34:03 -0600
From: W6RCecilA <Cecil.A.Moore@IEEE.org>
Subject: Where docs for pactor, amtor, clover, etc...
Jeff Pierce wrote:
> Where can an interested party find the specs and protocol tutorials for
> the HF digital modes? Like say you wanted to develop software for
> them....
I've ordered the new ARRL HF Digital Handbook. Don't know yet how
good it is. Here's a quote from the ARRL sales blurb: "Chapters
cover building an HF digital station, digital modes such as PSK31,
PACTOR I & II, Clover, G-TOR, Hellschreiber, HF/internet connection,
and digital contesting." Order #7652 for $15.
--
73, Cecil, W6RCA http://www.mindspring.com/~w6rca
>.
------------------------------
Date: Sun, 14 Nov 1999 15:19:21 -0500
From: Jeff Pierce <piercej@preferred.com>
Subject: Where docs for pactor, amtor, clover, etc...
Where canan interested party find the specs and protocol tutorials for
teh HF digital modes? Like say you wanted to develop software for
them....
--
Jeff Pierce, wd4nmq
piercej@preferred.com
http://pages.preferred.com/~piercej
-----------== Posted via Newsfeeds.Com, Uncensored Usenet News ==----------
http://www.newsfeeds.com The Largest Usenet Servers in the World!
------== Over 73,000 Newsgroups - Including Dedicated Binaries Servers ==----
-
>.
------------------------------
Date: Sun, 14 Nov 1999 15:55:10 -0600
From: "Rick Ruhl" <ricker@cssincorp.com>
Subject: Where docs for pactor, amtor, clover, etc...
It's been mentioned in here before, but well worth repeating...
Pactor and Pactor II require a license for use...and Pactor II requires
hardware also from SCS http://www.scs-ptc.com. They also provide the docs.
Clover requires a license from Hal Communications http://www.halcomm.com,
they also provide the documentation
GTOR is described in the book, G-TOR, the new mode, by Phil Anderson. It
requires a license from Kantronics.
The other HF modes.. CW, RTTY, ASCII and AMTOR do not require a license.
--
Rick Ruhl
President, Creative Services Software
http://www.cssincorp.com
Jeff Pierce wrote in message <382F1949.73D5FC97@preferred.com>...
>Where canan interested party find the specs and protocol tutorials for
>teh HF digital modes? Like say you wanted to develop software for
>them....
>
>--
>Jeff Pierce, wd4nmq
>piercej@preferred.com
>http://pages.preferred.com/~piercej
>
>
> -----------== Posted via Newsfeeds.Com, Uncensored Usenet News
==----------
> http://www.newsfeeds.com The Largest Usenet Servers in the World!
>------== Over 73,000 Newsgroups - Including Dedicated Binaries Servers
==-----
>.
------------------------------
Date: Mon, 15 Nov 1999 09:05:57 +0200
From: Paul Keinanen <keinanen@sci.fi>
Subject: Where docs for pactor, amtor, clover, etc...
On Sun, 14 Nov 1999 15:55:10 -0600, "Rick Ruhl" <ricker@cssincorp.com>
wrote:
>Pactor and Pactor II require a license for use...and Pactor II requires
>hardware also from SCS http://www.scs-ptc.com. They also provide the docs.
>Clover requires a license from Hal Communications http://www.halcomm.com,
>they also provide the documentation
Is there a description for these protocols that has been obtained
independently from these hardware vendors e.g. by reverse engineering
the signal on air ?
While the implementation by the hardware vendor is proprietary and
possibly even patentable, I very much doubt that the actual
transmission protocol i.e. the algorithm is patentable at least in
most countries.
However, the US patent office has a tradition of giving patents to
even perpetual motion machines, so I would not be too surprised, if a
patent had been granted for these protocols, but in that case, it is a
public document and the protocol can be studied from that document.
Paul OH3LWR
>.
------------------------------
End of Ham-Digital Digest V99 #292
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