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PA2AGA > HDDIG 18.07.00 01:05l 209 Lines 6208 Bytes #-9314 (0) @ EU
BID : HD_2000_192E
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Subj: HamDigitalDigest 2000/192E
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Sent: 000717/1743Z @:PI8HGL.#ZH1.NLD.EU #:61949 [Den Haag] FBB $:HD_2000_192E
From: PA2AGA@PI8HGL.#ZH1.NLD.EU
To : HDDIG@EU
Date: Mon, 17 Jul 00 18:07:24 MET
Message-Id: <hd_2000_192E>
From: pa2aga@pe1mvx.ampr.org
To: hd_broadcast@pa2aga.ampr.org
X-BBS-Msg-Type: B
wrote:
> >Laura:
> >
> >Young lady, making a simple spark gap and a crystal radio receiver to send
> >and transmit CW signals only needs a few items that one can pick up from
the
> >local hardware store or garbage dump. Wire, a toilet roll or two a
homemade
> >capacitor, from wax paper and tin, a battery for the transmitter, a spark
> >plug or, a piece of galena crystal or a simple discarded razor blade,
etc...
>
> Pray tell - how does one generate CW using only a spark gap transmitter?
> The last time I looked, they generated damped waves - certainly NOT CW.
> Throw an alternator in there, and you may have a point.
>
> Wasn't this covered on the Novice exam?
>
> - Rich
>
>
------------------------------
Date: Sun, 16 Jul 2000 19:09:59 -0400
From: "Bob Lewis" <rlewis@staffnet.com>
Subject: Forget HF & CW - Think Digital
> The problem is the wire.
I can tell you were never in the Boy Scouts! You should have taken the
wire with you just in case you needed to make a radio :-)
------------------------------
Date: Sun, 16 Jul 2000 23:23:55 GMT
From: "Hank Oredson" <horedson@att.net>
Subject: Forget HF & CW - Think Digital
Well darn!
I *was* in the boy scouts (that's where I made the door-bell-transmitter),
and of *course* always carried several spools of enamel copper wire
of different gauges just in case it might be needed! Guess I just forgot
about that in the heat of the argument :-)
--
... Hank
http://horedson.home.att.net
"Bob Lewis" <rlewis@staffnet.com> wrote in message
news:6arc5.2059$Mt6.5640@newsfeed.slurp.net...
> > The problem is the wire.
>
> I can tell you were never in the Boy Scouts! You should have taken the
> wire with you just in case you needed to make a radio :-)
>
>
>
------------------------------
Date: Sun, 16 Jul 2000 20:05:12 -0500
From: CAM <CAM2338@bigfoot.com>
Subject: Forget HF & CW - Think Digital
Rich wrote:
> Pray tell - how does one generate CW using only a spark gap transmitter?
> The last time I looked, they generated damped waves - certainly NOT CW.
I thought so too, Rich, but I was corrected. The later spark gap transmitters
used a sustained arc and were perfectly capable of CW.
--
http://www.mindspring.com/~w6rca
------------------------------
Date: Sun, 16 Jul 2000 18:55:21 -0700
From: Aaron.Jones@ihnp4.ucsd.edu
Subject: Forget HF & CW - Think Digital
"Steve Sampson" <ssampson@usa-site.net> wrote:
>For most aircrew, the first thing that sinks to the bottom, is the
>survival radio,
Retort 1: So a CW rig would be better because it floats??
Retort 2: Gee, even I keep my cell phone locked to my belt. Do you
think I should write the Air Force with this idea...
------------------------------
Date: Sun, 16 Jul 2000 22:45:19 -0400
From: "Bob Lewis" <rlewis@staffnet.com>
Subject: Forget HF & CW - Think Digital
> Retort 2: Gee, even I keep my cell phone locked to my belt. Do you
> think I should write the Air Force with this idea...
Careful! You'll sink with the cell phone :-)
------------------------------
Date: Sun, 16 Jul 2000 21:54:14 -0500
From: "Steve Sampson" <ssampson@usa-site.net>
Subject: Forget HF & CW - Think Digital
<Aaron Jones> wrote
> "Steve Sampson" wrote:
> >For most aircrew, the first thing that sinks to the bottom, is the
> >survival radio,
>
> Retort 1: So a CW rig would be better because it floats??
Yes, I'm sure that must be correct...
> Retort 2: Gee, even I keep my cell phone locked to my belt. Do you
> think I should write the Air Force with this idea...
Yes, write them. They'll be sure to consider it, I'm really sure...
Generally speaking, the aircrew ends up in a chute with their
seat-kit dangling below their butt, with a tug on the line the
raft inflates and the survival kit hangs down below that. As soon
as you hit the water the wind starts dragging you along at about
30 knots and your survival kit explodes into the first wave, with
little things tied on with small parachute cord. After the first bounce,
everything weighing over 1 pound is lost. That leaves you with a solar
still, a mirror, and a strobe light :-) After sucking in a gallon of sea
water you vomit everything from the colon up, and then have the dry
heaves for an hour.
OK, OK, I'm exaggerating...
Anyway, you don't feel like breaking out a straight or iambic key
and sending out ditty-bop stuff...
Steve/k5okc
------------------------------
Date: 16 Jul 2000 21:18:54 GMT
From: redberd95@aol.comnospam (REDBERD95)
Subject: LPFM Application Info...
Please notice the topic of the newsgroup, and post accordingly.
Randy
------------------------------
Date: Mon, 17 Jul 2000 02:03:54 GMT
From: "George , W5YR" <w5yr@att.net>
Subject: psk31 and vox
I use VOX very well with my Kachina 505DSP transceiver.
72/73, George W5YR - the Yellow Rose of Texas
Fairview, TX 30 mi NE Dallas in Collin county QRP-L 1373
Amateur Radio W5YR, in the 54th year and it just keeps getting better!
R/C since 1964 - AMA 98452 RVing since 1972 Kachina #91900556
(12/99)
ki8fb@my-deja.com wrote:
>
> can you use vox to transmit on psk31? when ever i try to use the serial
> port the radio stays keyed up. so i thought maybe i could use the vox
> in the radio. any ideas?
> 73
> Kevin
------------------------------
Date: 16 Jul 2000 21:08:19 GMT
From: chramade@aol.com (ChRAMADE)
Subject: PSK31 in french (soon in english)
Hello
Please have a look at my web site at http://members.aol.com/chramade/dxpsk.htm
You will see my new free program (in french sorry) of PSK31.
This program has been possible thanks to AE4JY (and his dll pskcore.dll)
If you are interested, it will be available in english at the end of this
summer.
73's de F6GQK (TL8ER, FO5OU)
------------------------------
End of Ham-Digital Digest V2000 #192
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