Eagle CAD Files

Click on the title to download the CAD files (WINZIP Required)

Radio Interfacing

Philips PRM-80 Interface

Universal Radio Interface

CTCSS Boards

NE-555 Design

LM-567 Design

LM-567 Design (SMD)

APRS Boards

Tiny Track (SMD)

Fox Digi

Transceiver Switch-on delay

Misc Boards

PIC Frequency Counter /DDS

Icom Auto Antenna band switch.

USB Radio Interface