On Aug 26, 5:38*am, Dave wrote:
RHF wrote:
On Aug 25, 4:31 pm, Dave wrote:
On Mon, 25 Aug 2008 13:20:53 -0700, RHF wrote:

Ham Radio 'existed' before the so-called "Sound Card".
For that matter Radio was 'history' way before the "Sound Card".
radio just listen ~ RHF
*.
- The point of amateur radio is to not "just listen",
- but to transmit as well. *There are several "digital"
- modes that use a PC sound card, and these are
- a hoot. You can "listen" to PSK31 very easily:
-
-http://www.youtube.com/watch?v=jQpBGh9RMEQ
-
- It's quite the sensation; *you can work the world
- with 10 Watts or less.

the point of shortwave radio listening (swl) is to . . .
listen to the radio - be it voice or code ~ RHF

The word "listen" doesn't appear in the name of the group. *The hobby is
about technical skills. *Any mouth-breather can buy fancy radios and
string up a wire and hear a 100,000 (and up) Watts radio station from
the other side of the world; *it takes a lot of skill and a lot of luck
to see someone typing on a keyboard in New Zealand working the Pacific
Northwest on 5 Watts.

-*PSK31 is more efficient than CW.

PSK31 Description - What is PSK31 ?
http://aintel.bi.ehu.es/psk31.html
http://www.tech-faq.com/psk31.shtml
http://www.spiritus-temporis.com/psk31/history.html
http://hamradio.arc.nasa.gov/meeting...sentation.html

PSK31 -or- "Phase Shift Keying, 31 Baud"
is a Digital Radio Modulation Mode
http://en.wikipedia.org/wiki/PSK31

PSK31 -source- ARRL
http://www.arrl.org/tis/info/psk31.html

PSK31 : Software for PSK31
http://www.dxzone.com/catalog/Software/PSK31/

Video Introduction to PSK31 - How To Receive PSK31
http://www.youtube.com/watch?v=jQpBGh9RMEQ

dave - i remain just an old radio listener
hearing it with my own two ears ~ RHF