[TenTec] SDR vs. SDR

[Ten-Tec Inc. Amateur Radio Sales]

"What's an SDR?"

I'll take the U.S. government's opinion, as they - more than any other 
entity - have been vitally interested in the topic.  There is endless 
reading available by surfing the Internet.  One of the better explanations 
I've read recently that anyone can understand is located on the NTIA 
website at this URL:

http://www.ntia.doc.gov/osmhome/newsletr/fall01/SDR.html

Excerpt:

"While there are differing opinions as to what an SDR actually is, a good 
general definition of an SDR is found in the recently adopted American 
National Standard, Telecom Glossary 2000. An SDR consists of a receiver 
and/or transmitter with the following properties: (a) the received signal 
is digitized and then processed using software-programmable digital signal 
processing techniques (digitization may occur at the RF, IF, or baseband); 
and (b) the modulated signal to be transmitted is generated as a digital 
signal using software-programmable digital signal processing techniques. 
The digital signal is then converted to an analog signal for transmission 
(the conversion to analog may occur at baseband, IF, or RF)."

Sounds like some Ten-Tec HF transceivers that we know and love.

73
Scott Robbins W4PA
Amateur Radio Product Manager, Ten-Tec, Inc.



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