Vectronics VEC-1402DK User Manual
Page 3

TABLE OF CONTENTS
Introduction .....................................................................................................2
Tools And Supplies .........................................................................................2
Before You Start Building...............................................................................3
Soldering Tips: .......................................................................................3
Desoldering Tips: ...................................................................................3
Work Habits: ..........................................................................................4
Sorting and Reading Resistors:...............................................................4
Reading Capacitors:................................................................................5
Diodes: ...................................................................................................5
Transistors: .............................................................................................6
Integrated Circuits: .................................................................................6
Parts List..........................................................................................................7
Parts Placement ...............................................................................................7
Step-By-Step Assembly Instructions ...............................................................8
Testing and Alignment ....................................................................................13
Generator Method: .................................................................................13
Off-air Method: ......................................................................................14
Operation Instructions .....................................................................................15
Outdoor Preamp Installations: ................................................................15
Building a Bias-T: ..................................................................................15
Balun Option T1:....................................................................................16
Feeding Balanced Antennas with the Balun: ..........................................18
Installing the VEC-1402DK in a Radio(and other considerations) ........18
External Power Sources:.........................................................................18
In Case Of Difficulty: ......................................................................................19
Preamp Stops Amplifying:......................................................................19
Cannot Align or Test Preamp: ................................................................19
Voltmeter Checks: ..................................................................................19
Theory Of Operation And Specifications ........................................................20
Operation:...............................................................................................20
Specifications: ........................................................................................20
Schematic ........................................................................................................21