U.S. Marine Corps Antenna Mcrp 6 22D Operating Instructions

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DEPARTMENT OF THE NAVY
Headquarters United States Marine Corps
Washington, D.C.  20380-1775
1 June 1999
FOREWORD
Communications and information systems (CIS) support collect-
ing, processing, and exchanging information. CIS automate
routine functions, freeing commanders and staffs to focus on the
aspects of command and control that require experience, judg-
ment, and intuition. Personnel who install, operate, and maintain
CIS play a key role in the command and control of the Marine air-
ground task force...

Tactical SCRs operate in the three military radio frequency bands
(high frequency [HF], very high frequency [VHF], and ultrahigh
frequency [UHF]). In the HF band, SCR can support long-range
communications, albeit at the expense of mobility. SCR in the
VHF and UHF bands is normally limited to line of sight. SCR
satellite communications (SATCOM) provide mobility, flexibili-
ty, and ease of operation with unlimited range. Limitations of
SCR include susceptibility to enemy electronic warfare; cosite,...

Reviewed and approved this date.
BY DIRECTION OF THE COMMANDANT OF THE MARINE CORPS
J. E. RHODES
Lieutenant General, U.S. Marine Corps
Commanding General
Marine Corps Combat Development Command
DISTRIBUTION:  144 000062 00  

v Antenna Handbook
Table of Contents
Page
Chapter 1.  Radio Principles
Electromagnetic Radiation1-1
Radio Waves1-2
Frequency1-2
Frequency Calculation1-3
Frequency Bands1-3
Radio Communication Circuit1-5
Propagation Fundamentals1-8
Earth’s Atmosphere1-8
Radio Wave Propagation1-8
Other Factors Affecting Propagation1-18
Path Loss1-19
Reflected Waves1-19
Diffraction1-21
Tropospheric Refraction, Ducting and Scattering1-22
Noise1-23
Natural Noise1-24
Manmade Noise1-24 

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MCRP 6-22D
vi Chapter 2.  Antenna Fundamentals
Section I. Concepts and Terms2-2
Forming a Radio Wave2-2
Radiation2-2
Radiation Fields2-3
Radiation Patterns2-4
Polarization2-6
Polarization Requirements for Various Frequencies2-8
Advantages of Vertical Polarization2-9
Advantages of Horizontal Polarization2-10
Directionality2-10
Resonance2-11
Reception2-12
Reciprocity2-13
Impedance2-14
Bandwidth2-15
Gain2-16
Take-Off Angle2-18
Section II.  Ground Effects2-19...

Antenna Handbook _________________________________
vii Azimuth2-26
Improvement of Marginal Communications2-27
Transmission and Reception of Strong Signals2-29
Chapter 3.  Transmission Lines
Properties3-1
Transmission Line Types3-1
Minimizing Energy Loss3-3
Impedance3-3
Optimizing Line Length3-5
Attenuation3-6
Making the Best Use of Available Transmission Lines3-7
Twin-Lead Limitations3-8
Directly Connecting the Transceiver and Antenna3-9
Baluns3-10
Cable Connectors3-11
Balanced Antenna3-11
Chapter 4.  HF...

_________________________________________ 
MCRP 6-22D
viii Long Wire4-21
Inverted L4-24
Sloping Vee4-28
Sloping Wire4-33
Vertical Half-Rhombic4-37
HF NVIS Communications4-40
Chapter 5.  VHF and UHF Antenna Selection
Frequencies5-1
Polarization5-2
Gain and Directivity5-2
Gain5-3
Directivity5-3
Transmission Lines5-4
Radiators5-5
Vertical Radiator5-5
Cross Section Radiator5-5
Insulation5-5
Interference5-6
Noise5-6
Multipath Interference5-6
Vegetated Areas5-8
Antenna Types5-9
Vertical Whip5-9
OE-2545-10...

Antenna Handbook _________________________________
ix Chapter 6.  Field Repair and Expedients
Repair Techniques6-1
Whip Antennas6-1
Wire Antennas6-2
Guys6-4
Masts6-4
Tips on Construction and Adjustment6-4
Constructing the Antenna6-4
Adjusting the Antenna6-6
Field Expedient Antennas6-7
VHF Considerations6-7
HF Considerations6-7
End-Fed Half-Wave Antenna6-8
Center-Fed Doublet Antenna6-9
Field Expedient Directional Antennas6-14
Vertical Half-Rhombic and Long-Wire Antennas6-14
Yagi Antenna6-14
Vee...