Rafael, have you tried the Spanish Translation version at that link?
It is somewhat different.

On 17 Jul 2004 14:17:48 -0700, (rafael) wrote:
I just got this radio last night. It's supposed to have a built in
mic. How can I test the mic? What button do i push?
I already read the online manuals for it but it doesn't even tell you
how to do the most simplest things.
http://support.radioshack.com/produc...Radios&Reuse=N
thanks