Juan Carlos Pérez De Castro, KM4NNO, is an amateur radio operator, and electronics and communications engineer originary from Mexico City, Mexico.

His main purpouses into amateur radio are learning standards, research, and development of interconnected communications systems over VHF and UHF.

Some of the National and International organizations He is enrroled are:

ARRL (active member)

 

If you want to contact me, drop an email to km4nno at yahoo.com