AI3D’s Homepage!


 

AI3D – Erik in North Wales, PA.  I’m an electrical engineer who was born and raised in Pennsylvania.  I work as an integrated circuit designer and in my spare time I enjoy hiking, biking, and going to the gym.   I am active on 80m and 20m with SSB and digital modes.  I am also mobile on 2m/440 FM. 

 

 

Click here for my radio station details.

 

 

 

Riley_AI3D.jpg                                  

                                                   July 2009 at Lehigh University with Riley Hollingsworth                                                Hiking in 2011 along the Potomac River

 

 

 

 

By popular demand, this webpage will document my ham radio projects and activities.  My current project is an HF transceiver using a DDS VFO.  Click on the links below for design notes.

 

 

 

Radio Design Links

 

 

DDS VFO Design                    Bandpass Filter Design             1st Mixer and 45MHz Filters         Audio Amplifier

 

 

AT90USB Micro Controller     9MHz IF Amplifier – AD603        9MHz IF Filters           Demodulation Circuits

 

 

Email me: geissene at gmail dot com

 

 

 

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