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PA2AGA > HDDIG 06.07.00 02:06l 236 Lines 7076 Bytes #-9409 (0) @ EU
BID : HD_2000_179B
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Subj: HamDigitalDigest 2000/179B
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Sent: 000705/2038Z @:PI8HGL.#ZH1.NLD.EU #:58932 [Den Haag] FBB $:HD_2000_179B
From: PA2AGA@PI8HGL.#ZH1.NLD.EU
To : HDDIG@EU
Date: Wed, 05 Jul 00 21:27:56 MET
Message-Id: <hd_2000_179B>
From: pa2aga@pe1mvx.ampr.org
To: hd_broadcast@pa2aga.ampr.org
X-BBS-Msg-Type: B
> and FSK are). Or do you mean the combination?
>
> I don't see any advantage in OOK. The alphabet is fine, but
> really independent of the modulation as far as I can see. It's just
> Huffman enccoded and not something to get too excited about
> I would've thought.
>
> > Always was digital, always will be digital.
>
> You can use a computer to sample it and decode it, but that doesn't
> make it digital. You can use a computer to recognise speech and
> music these days too.
>
> > Gary, if you cannot make intelligent contributions to this thread, I
suggest
> > that you go back to the "rec.radio.amateur.antennas" NG, you know more
about
> > antennas than you do digital communications!
>
> And that was just plain rude..
>
>
>
> Hamish
> --
> Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>
------------------------------
Date: Mon, 03 Jul 2000 08:43:25 -0500
From: CAM <W6RCA@mindspring.com>
Subject: CW versus hi speed digital etc.
Paul Keinanen wrote:
>
> On Sun, 02 Jul 2000 19:58:48 -0500, CAM <W6RCA@mindspring.com> wrote:
> >111010101000101000111010001011100010111010001110101110111 :-)
>
> Binary systems usually attach some kind of weight (e.g. 1, 2, 4, 8 ..)
> to each binary digit.
That's the binary number system that does that. Assignment of bits
for each unique ASCII character could have followed any unweighted
pattern and position in time need not correspond to any mathematically
weighted value. Morse code and ASCII are simply two different ways of
coding the English alphabet. When Morse code was defined with respect
to one fixed-length 'dot' time, it resulted in a one-to-one correspondence
to a binary bit stream. A lot of CW repeaters IDers are encoded into
*BINARY* EPROM memories.
--
http://www.mindspring.com/~w6rca
------------------------------
Date: Mon, 03 Jul 2000 08:50:48 -0500
From: CAM <W6RCA@mindspring.com>
Subject: CW versus hi speed digital etc.
Hamish Moffatt VK3SB wrote:
> I don't see any advantage in OOK.
Do you see any advantage to FSK? For the same *average* power
output level, OOK and FSK have the same S/N performance.
--
http://www.mindspring.com/~w6rca
------------------------------
Date: Mon, 03 Jul 2000 08:47:54 -0500
From: CAM <W6RCA@mindspring.com>
Subject: CW versus hi speed digital etc.
"Peter O. Brackett" wrote:
> Cecil, as I said up the thread a little ways, most of the "so-called"
> digital experts who hang on this NG are completely without background or
> expertise in digital communications, they cannot even analyze a digital
> communications scheme as simple as CW!
When I took a digital course at Texas A&M in 1958, I decided that's how
I wanted to spend my engineering career. It was a great 40 years. 73, Cec
--
http://www.mindspring.com/~w6rca
------------------------------
Date: Mon, 3 Jul 2000 11:42:11 -0500
From: "Peter O. Brackett" <ab4bc@ix.netcom.com>
Subject: CW versus hi speed digital etc.
Cecil:
[snip]
"> Do you see any advantage to FSK? For the same *average* power
> output level, OOK and FSK have the same S/N performance.
> --
> http://www.mindspring.com/~w6rca
[snip]
Exactly!
But then I suppose the un-initiated will toss in some more exotic and arcane
modulations to confuse the arguments.
My point is that CW is a digital mode, and danged efficient at that!
Why is it that so-many refuse to accept those facts?
CW has become far to much of an "emotional" issue for many, they have lost
their sense of perspective.
Many of these "digital" guys and gals are quite intelligent but have no
perspective.
What was it that Marvin Minsky, the great digital age guru. said once about
artificial intellig,
"An ounce of perspective is worth 50 points of IQ!"
Regards,
Peter
------------------------------
Date: Mon, 03 Jul 2000 12:53:58 -0500
From: CAM <W6RCA@mindspring.com>
Subject: CW versus hi speed digital etc.
"Peter O. Brackett" wrote:
> My point is that CW is a digital mode, and danged efficient at that!
> Why is it that so-many refuse to accept those facts?
> CW has become far to much of an "emotional" issue for many, they have lost
> their sense of perspective.
Yep, for those of us who already know Morse code, CW is quite often
the best ROI. I had fun learning Morse code in the Scouts and never
considered it a chore. Even after the code requirement is eliminated
I will continue to encourage all hams to learn Morse code and try CW.
I'm having essentially the same argument on an unrelated newsgroup.
"Other modes are better than CW" and "Casino Blackjack cannot be beaten."
My answer to both is the same. "Who cares, I'm having fun." 73, Cec
--
http://www.mindspring.com/~w6rca
------------------------------
Date: Tue, 4 Jul 2000 09:17:30 +0800
From: "Mike Gao/BD4OS" <write@mail-me.com>
Subject: how to use tnc's ptt
Hi,all OM
I have a Tnc (kamplus) and I want to use it to control my radio's ptt via
rts pin when I run some soundblaster software like sstv,psk31....thanks!
--
Mike Gao/BD4OS
------------------------------
Date: Tue, 4 Jul 2000 05:25:48 -0500
From: "Scott Schultz" <n0iu@arrl.net>
Subject: how to use tnc's ptt
Software like Digipan for PSK31 will control the PTT through a serial port
on the computer directly so you do not need to go through the KAM. If you
are running short on COM ports, you might consider add an I/O card to your
computer or going the cheap route and get a switch box so you can switch
between the TNC and the PSK31 software.
73,
de Scott N0IU
"Mike Gao/BD4OS" <write@mail-me.com> wrote in message
news:8jrdt7$258r$1@news.cz.js.cn...
> Hi,all OM
> I have a Tnc (kamplus) and I want to use it to control my radio's ptt via
> rts pin when I run some soundblaster software like sstv,psk31....thanks!
>
> --
> Mike Gao/BD4OS
>
>
------------------------------
Date: Mon, 03 Jul 2000 23:28:01 -0400
From: rodney <rgarner@broadcom.com>
Subject: psk31 on IC-730
I am looking for help on connecting my sound card to the IC-730.
Is there an easy way to connect from the acc connector?
Thanks
Rodney WB4ZWK
------------------------------
Date: Mon, 03 Jul 2000 12:52:44 -0700
From: pbarker <NOSPAMpbarker@mail.coos.or.us.NOSPAM>
Subject: Source for GE Delta head-connectors?
Hello,
I am looking for a source of the connectors used to attach a head unit
to a GE Delta. I am planning on putting up a node to serve our
isolated area but would prefer to avoid drilling holes into this
already modified radio.
In my immediate area, all the commercial shops are strictly Motorola
oriented and were not able to help locate a source.
73! de KB6NZV Phil Barker
To reply directly, remove NOSPAM from my reply-to address.
------------------------------
End of Ham-Digital Digest V2000 #179
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