FYI: GRE America has dicontinued the serial data cable (aka 20-289) in Radio Shack.
http://www.greamerica.com/scanner.html
http://www.radioshack.com/search/index.jsp?kwCatId=&kw=20-289&origkw=20-289
The USB version is available.
http://www.greamerica.com/scanner.html
http://www.radioshack.com/search/index.jsp?kwCatId=&kw=20-289&origkw=20-289
The USB version is available.