EZNEC User Manual

dard EZNEC: ......................................................................................3

EZNEC pro:................................................................................................4

Guarantee.....................................................................................................4

Amateur or Professional? .............................................................................4

Notes For International Users .......................................................................5

Getting Started.................................................................................................7

What's New in v. 4.0 .....................................................................................7

Undo/Redo.................................................................................................7

Control Center Menus................................................................................7

Segments...................................................................................................7

Segmentation Check (formerly Guideline Check) ......................................7

Geometry Check ........................................................................................7

Wires Window Features.............................................................................7

View Antenna Display ................................................................................8

Circular Polarization (plus and pro only) ....................................................8

Plot Displays ..............................................................................................8

Calculating Engines ...................................................................................8

Wire Insulation ...........................................................................................9

Improved Printing.......................................................................................9

Easy Import of Wire Coordinates from NEC Files (EZNEC+, EZNEC pro
only) ...........................................................................................................9

Multiple Instances (EZNEC pro only) .........................................................9

Other..........................................................................................................9

If You Downloaded EZNEC ........................................................................10

Getting Acquainted with EZNEC .................................................................10

Making a Desktop Shortcut.........................................................................11

EZNEC Pro Users.......................................................................................11

Printing The Manual....................................................................................11

Test Drive ......................................................................................................13

Test Drive Introduction................................................................................13

Along The Straightaway..............................................................................13

Through The Curves ...................................................................................18

On The Race Course ..................................................................................22

Upgrading from DOS EZNEC or EZNEC pro.................................................26

Compatibility ...............................................................................................26

What's New Since DOS ..............................................................................26

The Big Difference ...................................................................................26

Antenna Notes .........................................................................................27

RLC Load Type........................................................................................27

Other New Features.................................................................................27

Nomenclature...........................................................................................27

Selected Operational Differences ............................................................28
Table Of Contents
iii
2D, 3D, and View Antenna display positioning......................................28

Data and Control Boxes........................................................................28

Shortcuts and Right-Clicking.................................................................28

Drop-Down Lists ...................................................................................29

Uninstalling DOS EZNEC ...........................................................................29

Procedure ................................................................................................29

Building The Model ........................................................................................30

Introduction to Modeling..............................................................................30

Modeling With EZNEC ................................................................................30

Opening The Description File .....................................................................31

Modeling The Antenna Structure: Wires .....................................................31

About Wires .............................................................................................31

Segmentation...........................................................................................33

Using The Wires Window.........................................................................34

EZNEC has a number of very powerful features for modifying groups of
wires, located in the Wires Window Wires menu. There are also several
powerful features in the Create menu, described in the Advanced Wire
Features section. .....................................................................................36

Wire Coordinate Shortcuts.......................................................................37

Wire Loss.................................................................................................38

Wire Insulation .........................................................................................39

Importing Wire Coordinates .....................................................................40

Other Wire Considerations.......................................................................40

Some
Special Cases................................................................................41

Acute Angles.........................................................................................41

Buried Wires .........................................................................................41

Closely Spaced Wires...........................................................................42

Crossed
Dipoles....................................................................................42

Elevated Radial Systems ......................................................................43

Feedlines and Baluns ...........................................................................44

Linear Loaded Antennas.......................................................................44

Log Periodic Antennas..........................................................................44

Phased Arrays ......................................................................................45

Small Loops ..........................................................................................45

Stacked Yagis .......................................................................................46

Vertical Antennas And Buried Radials ..................................................46

Wire Grid Modeling ...............................................................................48

Yagi Antennas.......................................................................................48

Advanced Wire Features .........................................................................49

Advanced Wire Features Introduction...................................................49

Loop Creation .......................................................................................49

Loop Resizing .......................................................................................49

Radial Creation .....................................................................................49

Helix Creation .......................................................................................50

Wire Grid Creation ................................................................................50

NEC 'Card' Entry...................................................................................51

Stepped Diameter Correction................................................................51

Stepped Diameter Correction Overview.............................................51

Using the Stepped Diameter Correction Display................................53

Using Sources.............................................................................................54
EZNEC User Manual
iv
About Sources .........................................................................................54

Source Types...........................................................................................54

Using The Sources Window.....................................................................55

Source Placement....................................................................................56