Instruction manual

DDF1  3
Ramsey Publication No. MDDF1
Price $5.00
TABLE OF CONTENTS
Introduction to the DDF1 .............................................. 4
Theory Of Operation ...................................................... 4
Circuit Description ......................................................... 7
Parts List ...................................................................... 11
Learn-as-you-build ....................................................... 13
DDF1 Assembly Steps ................................................ 14
Main Board Component Layout ................................... 17
Schematic Diagram ............................................... 18-19
Control & Indicator Assembly ...................................... 23
Antenna Schematic ...................................................... 25
Antenna & Switcher Board Layout ............................... 26
Antenna System Assembly .......................................... 27
Testing ......................................................................... 31
Operation ..................................................................... 34
Final Calibration ........................................................... 35
Final Case Up .............................................................. 36
Troubleshooting ........................................................... 36
Ramsey Warranty ........................................................ 39
INSTRUCTION MANUAL FOR
RAMSEY ELECTRONICS, LLC
590 Fishers Station Drive
Victor, New York 14564
Phone [phone]
Fax [phone]
www.ramseykits.com
DOPPLER RADIO
DIRECTION FINDER