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PA2AGA > HDDIG 11.09.00 08:44l 173 Lines 6715 Bytes #999 (0) @ EU
BID : HD_2000_246E
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Subj: HamDigitalDigest 2000/246E
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Sent: 000911/0221Z @:PI8HGL.#ZH1.NLD.EU #:12407 [Den Haag] FBB $:HD_2000_246E
From: PA2AGA@PI8HGL.#ZH1.NLD.EU
To : HDDIG@EU
Date: Sun, 10 Sep 00 22:35:21 MET
Message-Id: <hd_2000_246E>
From: pa2aga@pe1mvx.ampr.org
To: hd_broadcast@pa2aga.ampr.org
X-BBS-Msg-Type: B
>
>
> It sounds as though you have a bone to pick with TAPR.
Any US Ham who has supported TAPR in the last decade should have a SERIOUS
"bone" to pick with TAPR. They didn't just drop the ball; They poked a big
hole in it, and then sat on it.
> I do not have answers to your questions and I was quite
> disappointed to see what happenned with the TAPR weather
> station recently.
>
> Could be historically that some other opportunities were
> missed, as well.
Yep: Everything TAPR has touched during the time "you know who" was
providing "leadership" for that organization... TNC95 is another example not
named so far in this thread. There are plenty of others.
> But, let me say that TAPR accepts proposals for projects
> and anyone (as far as I know) is welcome to submit one.
That's right. But by doing so, you are assured that your proposal will come
to precisely NOTHING. Ham-Web, for example, was a brilliant idea that TAPR
made sure would not happen by assuming control, then putting it into limbo.
This is the usual pattern. Submit it TAPR, watch it die on the vine.
> I think the fundamental limitation may be the motivation
> of the membership and not any conspiracy on the part of
> some ruling party within the organization.
Under it's former (pre Greg Jones) leadership, TAPR came up with a good
reputation for itself. After Greg came in, the hype level went up, and the
accomplishment level went close (very close) to zero.
Blaming the membership is not going to change the facts. Sure, the TAPR
membership was cheated, gulled, and ripped off. - But it was an internal
clique surrounding TAPR's "leadership" that effected those nonproductive
effects. THEY are to blame, not the people they systematically ripped off
and lied to.
Blaming "Joe Ham" is typical "LandLine Lid" bull... Stick it. We Hams are
getting sick and tired of that particular whine.
> Your point is well taken, though. Kinda like the old
> saying "What have you done for me, lately?"
TAPR has done one really outstanding thing, lately... They lost Greg Jones.
Now if they can get rid of his cronies and restructure with a new bunch of
rascals, they MIGHT have a chance of getting their reputation (and
usefulness to the Ham community) back again. The current BoD is too polluted
with wrong thinking to help themselves. - They will just carry on with more
of the same stupid, nonproductive thinking, tons of hype, and zero
accomplishment.
--
73 DE Charles Brabham, N5PVL
n5pvl@swbell.net
http://home.swbell.net/n5pvl/
------------------------------
Date: Fri, 8 Sep 2000 20:35:13 -0500
From: "Rick Ruhl" <ricker@cssincorp.com>
Subject: TH-D7A secrets
Actually, the TNC inside the Kenwood, like the new Alinco, was OEMed from
Tasco in Japan.
http://www.tasco.co.jp
"Brian Short" <k7on@earthlink.net> wrote in message
news:MPG.142390bd895300709896b1@news.earthlink.net...
> In article <8pbrq7$ue0$1@nnrp1.deja.com>, horseshoestew@my-deja.com
> says...
> > How did Kenwood manage to get a 9k6 modem to fit into such a small
> > space on their TH-D7A radio(not to mention a dual-band radio with two
> > serial ports). Has anybody opened up one of these puppies yet?
>
>
> My understanding (and I may be wrong) is that Kenwood designed
> a special purpose IC containing the 1k2 and 9k6 TNC. They will
> now include this IC many of their radios. For example, their
> new radio covering HF through 1296 will utilize the same technology.
>
> No doubt, there was some significant development cost in producing
> this, but they are now the only one of the big three (YaeComWood)
> with TNC functions in the radio.
>
> I'm saying that developing this special application IC is an
> investment not a major scientific breakthrough.
>
> Maybe this will sell radios for them. Icom's gimmick (if you will)
> seems to be these large color LCD displays. Yaesu, evidently,
> doesn't need a gimmick.
>
> --
> mailto:k7on@earthlink.net >< http://home.earthlink.net/~k7on/
> --
------------------------------
Date: Sat, 9 Sep 2000 06:39:34 GMT
From: nomail@rob.knoware.nl (Rob Janssen)
Subject: TH-D7A secrets
horseshoestew@my-deja.com <horseshoestew@my-deja.com> wrote:
>How did Kenwood manage to get a 9k6 modem to fit into such a small
>space on their TH-D7A radio(not to mention a dual-band radio with two
>serial ports). Has anybody opened up one of these puppies yet?
>The old 1200bps Amateur TNCs have a special modem chip(but most of them
>are still huge because nobody bothered to upgrade the technology in the
>last 5 years - save PacComm with the picoPacket). The old 1200bps
>modem chip has been available for years(since the 80's). I believe it
>was put out my AMD, and was called the "World Modem Chip" because it
>did both Bell 202(old European 1200bps telephone standard, and ham
>packet standard) and Bell 212(old American 1200bps telephone standard).
>But the TAPR 9k6 modem has a bunch of discrete stuff, the thing costs
>$80 for a kit - and the thing is HUGE! Are there now commercially
>available modem chips(or chipsets) that will do the job for 9k6 packet?
A 9k6 packet modem, in principle, is simpler than a 1k2 modem. That is
because it does not modulate/demodulate but it simply (digitally) scrambles
and descrambles the data. A lowpassfilter and a dataslicer finishes the
whole thing up.
Single-chip designs (and other designs much simpler than the original
discrete design) have been available for many years, but apparently not
from TAPR.
BTW, after your "world chip", which was nice but overkill for packet, there
has been an era when the TI TCM3105 was widely used for 1k2. It was
smaller and required less power (and only +5V power). It was also
available in SMD, and modems fitting in an RS232 connector were produced
using that chip. Now, it is no longer produced (the chip makers, unlike
radio amateurs, consider 1200 baud AFSK a thing of the past).
But it seems like the folks in the USA have missed most of this stuff.
Rob
--
+----------------------------------+--------------------------------------+
| Rob Janssen pe1chl@amsat.org | WWW: http://www.knoware.nl/users/rob |
| AMPRnet: rob@pe1chl.ampr.org | AX.25 BBS: PE1CHL@PI8WNO.#UTR.NLD.EU |
+----------------------------------+--------------------------------------+
------------------------------
End of Ham-Digital Digest V2000 #246
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