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PA2AGA > HDDIG 16.03.00 15:37l 239 Lines 7155 Bytes #-9546 (0) @ EU
BID : HD_2000_73G
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Subj: HamDigitalDigest 2000/73G
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From: PA2AGA@PI8VNW.#ZH2.NLD.EU
To : HDDIG@EU
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Date: Mon, 13 Mar 00 19:27:10 MET
Message-Id: <hd_2000_73G>
From: pa2aga
To: hd_broadcast@pa2aga
Subject: HamDigitalDigest 2000/73G
X-BBS-Msg-Type: B
>
OK. Now what?
>
>: > as they have invested in
>: > the code test issue. Hot air being worth two cents per cubit and all
that.
>
>: The only reason SSB is used today, is because SAC (Gen. Lemay) adopted it,
>
>Maybe by the military, but civilians and commercial users were using it
>much earlier.
>
Certainly, the guy obviously has a loose bolt. Ham ssb was in use in
the early 30s. Curt LeMay ran Collins KWM-1&2s on his official travels
long after ssb was well established and heavily used on the HF ham
bands (Like by Barry Goldwater) and long after a mutitude of other
commercially produced ham ssb rigs were on the shelf from the likes of
the B&W, the Collins separates, Hallicrafters, etc.
>
>; and rigs were manufactured in mass quantities. Else, Hams
>: would still be using AM and CW on HF.
>
>So by your reckoning, hams bought old military SSB rigs and put them on
>ham freqs. ;-)))))
>
Yeah, right. Lenny would just love this.
>
>: This won't happen again, because military communications are mostly
>: incompatible, specialized, and not produced in mass quantities.
>
>Depends upon what you call "mass". We never refused a military contract
>for 1000s of radios!!!
>
>: That means from here on out, all Amateur modes will probably be designed
>: by Amateurs. While CW and SSB will be around in a hundred years
>: (if just for nostalgia purposes), the digital voice vocoder will transform
the
>: main operating mode, as Hams demand interference and propagation
>: adaptive algorithms.
>
As hams "demand"?? There'a new concept. Algorithms are gonna solve the
103 year old quest for Perfect Radio, huh? Hookay . . .
>
> Remember, there's a few billion more people on the
>: planet since 1965, and crowding is going to get worse.
>
I thought ham radio was dying . . ?
>
>And PCAs will tell us those people will naturally learn CW so they can
>communicate while walking down the street. :-)
>
Of course!
>
>: The time to start experimenting (the purpose of Ham radio) with vocoders
>: is now. Charles Brain has used the best chip there is, and a very
sophisticated
>: modem. I look forward to the articles.
>
>Sounds interesting.
>
Armchair inventors always sound "interesting". Who is gonna get the
FCC aboard? Who is gonna put it on the air? When? . . . Where's the
beef?
>
Jim, let me know when any of it actually goes on the air. I'm busy
beeping dx and doing antennas and all that other archaic analog stuff.
>
>: Steve, K5OKC/AG
>--
>Jim Rosenthal, WA4STJ
>
w3rv
>.
------------------------------
Date: Sun, 12 Mar 2000 18:31:12 GMT
From: pspratt@jspratt.freeserve.co.remove.uk (Sweep)
Subject: PSK31 Frequencies
PSK31 Frequencies
I have been active on PSK31 for a few months and have had qso's
on 80M, 20m, 15M and 10M. I have not heard any PSK signals
on any of the other bands. Can anyone please advise me of any
PSK activity/frequencies on bands other than 80/20/15/10 M.
TIA
Paul GW4GOQ
>.
------------------------------
Date: Mon, 13 Mar 2000 09:04:05 GMT
From: horseshoestew@my-deja.com
Subject: Question about mounting VHF/UHF omni next to TV antenna
I'm getting ready to mount my Diamond X-300 dual-band VHF/UHF(144/440)
hi-gain omni antenna on the top of a 40' telescoping TV mast. There
are existing VHF & UHF TV antennas on the top of the mast that I'm
going to lower about 3 feet from the top of the mast. The thing is -
because these TV antennas will be in close proximity to the ham
antenna, and because the TV antennas work in bandwidths that overlap
those of the omni - will these antennas have a large effect on the
antenna radiation/reception pattern of the omni? If so, how badly will
it be affected?
Sent via Deja.com http://www.deja.com/
Before you buy.
>.
------------------------------
Date: Sun, 12 Mar 2000 23:48:09 -0700
From: Tate <73KC7ZRU73@cyberhighway.net>
Subject: Which TNC
One way to go would be to skip the TNC altogether. Got a PC running Win98 and
an SB compatible sound card installed? Then try:
http://www.forthnet.gr/sv2agw/start.htm
73
"Michael G. Lowe" wrote:
>
> Interested in getting into Packet Radio but have concerns as to which TNC
> I should favor... I have been looking at the AEA PK-12, Kantronics KPC-3
> plus and MFJ 2170C?
>
> Anyone having a thought towards these I would appreciate the guidedance.
>
> -Michael
>
> --
> Michael G. Lowe
> KC0GGA
--
KC7ZRU | In Laramie Area
Laramie, WY | UARC Repeater
DN71eh | 146.610
"The Dungeon" online at http://www.cyberhighway.net/~tateb
Remove 73s from addy to send email
>.
------------------------------
Date: Mon, 06 Mar 2000 17:44:29 GMT
From: adel@ibm.net
Subject: WTB: Packet, Amtor, Pactor pgm for Kam+
Used Lan-link for years, It will not run on Pent 11 ect.
Wtb any pgm to replace it. Can't afford New Kagold etc.
A dos vers would be fine, tho can use Win 95 etc.
TIA,
Albert, Wa3fib
215/673-0485
>.
------------------------------
Date: Sun, 12 Mar 2000 14:05:51 -0500
From: aldel@attglobal.net (ALDEL)
Subject: WTB: Packet, Amtor Pactor Pgm for Kam+
WTB Pgm for Packet, Amtor, Pactor, etc for Kam+
Can't afford New Kagold etc.
A dos vers would be fine, tho can use Win 95 etc.
TIA,
Albert, Wa3fib
215/673-0485
-----------------------------------------------------------
aldel@attglobal.net (ALDEL)
-----------------------------------------------------------
>.
------------------------------
Date: Sun, 12 Mar 2000 17:44:29 +0000
From: Ian Wade <Ian.Wade@care4free.net>
Subject: X1J digis
I understand that X1J digis send a fixed string at the beginning of the
data, so that the "!" APRS Data Type Identifier may be shifted from its
usual first character position (by up to 39 characters).
Can someone please tell me the nature of the X1J fixed string. What data
does it contain? What characters can it contain? Must not contain?
Examples?
I'm working on an APRS decoder program, and I need to know how to
unambiguously recognize (and ignore) X1J strings.
73
Ian, G3NRW
Technical Editor, APRS Protocol Specification
--
+-----------------------------------------------------------------+
| APRS on 144.800 [IO91SX] ~55km/35 miles NNW of London |
| email: g3nrw@arrl.net |
| |
| APRS PROTOCOL SPEC: http://www.tapr.org/tapr/html/Faprswg.html|
+-----------------------------------------------------------------+
>.
------------------------------
End of Ham-Digital Digest V2000 #73
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