[Speex-dev] Digital speech within 100 Hz bandwidth

[Ken Linder (KC7RAD)]

HA!  Just when I was getting ready to drop myself from this list, along 
comes a ham radio question!

Shoving digital voice down a 100 Hz pipe would be mighty darned 
tough/impossible.  N0YMV has a good suggestion.  Try those WSJT modes.  They 
use narrow bandwidth and are fun to play with.  There are documented 
instances where moon-bounce QSOs have been completed with these modes.  No, 
it's not voice, but it does work.  Oh, JT65 mode in WSJT is designed 
specifically for EME communication.

I used the HSCW (high speed CW) for meteor scatter & had a lot of fun with 
it.

Best of luck in your EME endeavor.  Oh, what is your call???

73s
Ken - KC7RAD

I have used .
----- Original Message ----- 
From: "David Willmore" <davidwillmore at gmail.com>
To: <mike-lebo at ieee.org>
Cc: <speex-dev at xiph.org>
Sent: Friday, August 22, 2008 8:45 AM
Subject: Re: [Speex-dev] Digital speech within 100 Hz bandwidth


>> Could you please forward this e-mail to your  engineering department. I 
>> am a
>> ham radio person who wants to transmit from the Earth to the moon and 
>> back
>> to the Earth by phone not by Morris code. This will be a very weak 
>> signal. I
>> need an extra 13.8 dB of gain. Could you please help me distribute the
>> attached paper to someone who could take this project into the next 
>> level?
>
> Mike,
>
> If you don't like Morse, how about K1JT's WSJT suite of modes?  They were
> designed by Joe Taylor--who is an EME'er and very competent ham.  They
> are all keyboard-to-keyboard modes, so you can cut out the whole voice
> side of things.  No point in involving analog modes when you can keep it
> all digital.
>
> Best of luck.
>
> Cheers,
> David n0ymv
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