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Subject: Re: [worldcruising] Re: HF Radio
From: jan bruggeman (jan.bruggeman@XXX.XXX)
Date: Mon Jan 08 2001 - 08:03:30 EST
Hello all,
Just looked at this decoder. It is the same as the hamcomm decoder, but
lacking the 4 diodes that collect signals and send them to the right rs232
pins, so i'm afraid it is not complete, but it might well be an early
version of it. And I did not say it doesn't work, only I always worked with
an slighly more elaborated version (the current standard) including 4 diodes
more.
It has been (more than) floating around ham circles for decade(s). It was
the first thing I built when I became a ham7 years ago, and it was then
already considered basic.
mvg,
Jan Bruggeman - ON4AIN
mail: jan@XXX.XXX
web: http://jan.bruggeman.com
----- Original Message -----
From: "Rick the Mouseherder" <nh2f@XXX.XXX>
To: <worldcruising@XXX.XXX>
Sent: Monday, January 08, 2001 1:31 PM
Subject: RE: [worldcruising] Re: HF Radio
> I've got a schematic for building one. I've put a copy of this up on my
web
> site. I've never gotten around to it, but this has been floating around
HAM
> circles for years.
>
> http://www.mouseherder.com/demod.html
>
> ----------------------------------------------------------
> Rick the Mouseherder - nh2f
> Westsail 32 Xapic, Hull #438
> Annapolis, MD
>
> A small boat and a suitcase full of money
> beats a 40 footer tied to the Bank.
>
> Creative graphic solutions in vinyl for your boat lettering & designs
> http://www.mouseherder.com
>
> Visit our Westsail 32 Xapic
> http://www.mouseherder.com/xapic
>
> The Westsail Owners Assn. Homepage
> http://www.westsail.org
>
>
>
> =-----Original Message-----
> =From: sogeparc@XXX.XXX]
> =Sent: Sunday, January 07, 2001 22:22
> =To: worldcruising@XXX.XXX
> =Subject: [worldcruising] Re: HF Radio
> =
> =
> =Despite all the expert in SSB/weatherfax/DSP... available on the
> =Internet, I am still struggling to find the diagram to build
> =a "simple amplitude demodulator to level-shift the audio
> =signal to voltage levels compatible with the RS232 standard"
> =as my laptop is far too old (Tosh 486/25 SX) to integrate and emulate
> =a soundcard and feed my weatherfax ICS DOS program...
> =
> =No DSP thanks, just a the basic device and I will be very happy...;)
> =can you help ? a URL, a quick drawing...?
> =
> =regards
> =
> =BBII
> =Auckland
> =NZ
> =
> =
> =
> ======================================
> =to unsubscribe email to: worldcruising-unsubscribe@onelist.com
> =
>
>
> =====================================
> to unsubscribe email to: worldcruising-unsubscribe@onelist.com
>
>
>
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