Introduction - IS11430008
Lesson 1 Identify Characteristics of Wave Propagation
The Atmosphere
Table 1. Frequency band coverage. - IS11430012
Table 2. Frequency band characteristics. - IS11430013
Reflection
Figure 4. Mirror Reflection. - IS11430015
Diffraction
Types of Ground Waves
Direct Wave Component
Frequency Characteristics of Ground Waves
Frequency Characteristics of Ground Waves cont'd
Lesson 1 Pracice Exercise
Lesson 1 Pracice Exercise cont'd
Learning Event 2: Skywaves - IS11430023
Ionsphere Storms
Figure 10. Solar eruption. - IS11430025
Figure 11. Sunspots
D Layer
Other layers
Characteristics of the Ionosphere
Regular Variations of Ionosphere
Table 4. Regular Variations of Ionosphere. - IS11430032
Table 4. Regular Variations of Ionosphere. cont'd
Seasonal Cycle
Figure 18b
Figure 19
Irregular Variation of Ionosphere
Sudden Ionospheric Disturbance or Dellinger Fade
Ionospheric Predictions - IS11430040
Sky Wave Propagation
Sky Wave Transmission Path
Figure 23
Figure 24. Average layer distribution of the ionosphere. - IS11430044
Figure 25. Skip zone. - IS11430045
Figure 26
Figure 28. Frequency versus distance for returned waves. - IS11430047
Lowest Usable Frequency (LUF)
Lesson 1/Learning Event 2 Practice Exercise
Lesson 1/Learning Event 2 Practice Exercise cont'd
Lesson 1 Comprehensive Practice Exercise
Lesson 1 Comprehensive Practice Exercise cont'd
Lesson 1 Identify Characteristics of Wave Propagation
Lesson 2 Calculate Antenna Length
Figure 29. Effect of antenna circumference on wave velocity
Figure 30. Impedance along half-wave antenna. - IS11430056
Transmission Lines
Basic Feeder Systems - IS11430058
Coaxial line feed
Basic Radiation Patterns
Dipole antenna radiation
Dipole antenna radiation cont'd
Practical Half-Wave Anatennas
Ground-Affected Radiation Patterns
Vertical half-wave antenna
Changes in Radiation Resistance
Figure 41. Solid patterns produced by vertical half-wave antenna located a half-wavelength above ground.
Table 6. Ground Material Conductivity. - IS11430071
Polarization - IS11430072
Lesson 2/Learning Event 1 Practice Exercise - IS11430073
Learning Event 2: Common Antennas
The 14 percent off-center fed antenna
The inverted L antenna
The slant-wire antenna - IS11430078
Quarter-Wave Antennas
Quarter-Wave Antennas cont'd
Radiation Characteristics
Radiation Characteristics cont'd
Types of Grounds
Types of Grounds cont'd
Bent Antennas
Bent Antennas cont'd - IS11430094
Bent Antennas cont'd - IS11430095
Bent Antennas cont'd - IS11430096
Long-Wire Antennas
Harmonically Operated Antennas in Free Space
Nonresonant Antennas
Nonresonant Antennas cont'd - IS11430101
Nonresonant Antennas cont'd - IS11430102
Near Vertical Incidence Sky-Wave (NVIS)
FM Squelch Capture Effect
FM Squelch Capture Effect cont'd
Lesson 2/Learning Event 2 Practice Exercise
Lesson 2/Learning Event 2 Practice Exercise cont'd
Learning Event 3: Siting - IS11430108
Ground Conductivity For Various Terrain - IS11430109
Single-hop Skip Distances at Various Vertical Take-off Angles - IS11430110
Frequency Planning Guide - IS11430111
Planning an HF Vehicular Radio System
Note
The Short Path Sky Wave
Sag
Figure 81. Doublet antenna sag
Jumpers
Communication between 250 to 800 miles
Tactical Radio System Analysis
Lesson 2/Learning Event 3 Practice Exercise
Lesson 2/Learning Event 3 Practice Exercise cont'd
Learning Event 4: Frequency Selection
Frequency Selection cont'd - IS11430127
Frequency Selection cont'd - IS11430128
Frequency Selection cont'd - IS11430129
Frequency Selection cont'd - IS11430130
Frequency Selection cont'd - IS11430131
Frequency Selection cont'd - IS11430133
Volume 8, Central Europe
Predicted Sunspot Numbers (SSN)
Map of Areas - IS11430136
Index to Lowest High Frequency
Maximum Usable Frequencies (MUF)
Lowest Usable Frequencies (LUF)
Lowest Usable Frequencies (LUF) cont'd - IS11430140
Lowest Usable Frequencies (LUF) cont'd - IS11430141
Lowest Usable Frequencies (LUF) cont'd - IS11430142
Lowest Usable Frequencies (LUF) cont'd - IS11430143
Lowest Usable Frequencies (LUF) cont'd - IS11430144
Lowest Usable Frequencies (LUF) cont'd - IS11430145
Lowest Usable Frequencies (LUF) cont'd - IS11430150
Lowest Usable Frequencies (LUF) cont'd - IS11430151
Lowest Usable Frequencies (LUF) cont'd - IS11430152
Conclusions - IS11430153
Conclusions cont'd - IS11430154
Conclusions cont'd - IS11430156
Conclusions cont'd - IS11430158
Conclusions cont'd - IS11430159
Conclusions cont'd - IS11430161
Conclusions cont'd - IS11430165
Conclusions cont'd - IS11430166
Take-Off Angle Vs Distance - IS11430167
Half-Wave Doublet Antenna Vertical Pattern, Height 25 Feet - IS11430168
Half-Wave Doublet Antenna Vertical Pattern, Height 40 Feet - IS11430169
Half-Wave Doublet Radiation Pattern, Quarter Wave High
Conclusions - IS11430171
Ground-Wave Propagation Charts (GW Book) Volume 2 Central Europe - IS11430172
Map of Areas - IS11430173
Index to Ground Wave Ranges
Ground Wave Ranges in Statue Miles - IS11430175
Ground Wave Ranges in Statue Miles - IS11430176
Ground Wave Ranges in Statue Miles - IS11430177
Conclusions - IS11430178
Lesson 2/Learning Event 4 Practical Exercise
Lesson 2/Learning Event 4 Practical Exercise cont'd
Lesson 2 Comprehensive Practice Exercise - IS11430181
Lesson 2 Comprehensive Practice Exercise - IS11430182
Lesson 2 Calculate Antenna Length
Answers to Practical Exercise Lesson 1 Lesson 1/Learning Event 1
Lesson 2/Learning Event 1
Lesson 2 (Comprehensive)
Radio Wave Propagation and Antennas
Lesson 1 Identify Characteristics of Wave Propagation
The Atmosphere
Table 1. Frequency band coverage. - IS11430012
Table 2. Frequency band characteristics. - IS11430013
Reflection
Figure 4. Mirror Reflection. - IS11430015
Diffraction
Types of Ground Waves
Direct Wave Component
Frequency Characteristics of Ground Waves
Frequency Characteristics of Ground Waves cont'd
Lesson 1 Pracice Exercise
Lesson 1 Pracice Exercise cont'd
Learning Event 2: Skywaves - IS11430023
Ionsphere Storms
Figure 10. Solar eruption. - IS11430025
Figure 11. Sunspots
D Layer
Other layers
Characteristics of the Ionosphere
Regular Variations of Ionosphere
Table 4. Regular Variations of Ionosphere. - IS11430032
Table 4. Regular Variations of Ionosphere. cont'd
Seasonal Cycle
Figure 18b
Figure 19
Irregular Variation of Ionosphere
Sudden Ionospheric Disturbance or Dellinger Fade
Ionospheric Predictions - IS11430040
Sky Wave Propagation
Sky Wave Transmission Path
Figure 23
Figure 24. Average layer distribution of the ionosphere. - IS11430044
Figure 25. Skip zone. - IS11430045
Figure 26
Figure 28. Frequency versus distance for returned waves. - IS11430047
Lowest Usable Frequency (LUF)
Lesson 1/Learning Event 2 Practice Exercise
Lesson 1/Learning Event 2 Practice Exercise cont'd
Lesson 1 Comprehensive Practice Exercise
Lesson 1 Comprehensive Practice Exercise cont'd
Lesson 1 Identify Characteristics of Wave Propagation
Lesson 2 Calculate Antenna Length
Figure 29. Effect of antenna circumference on wave velocity
Figure 30. Impedance along half-wave antenna. - IS11430056
Transmission Lines
Basic Feeder Systems - IS11430058
Coaxial line feed
Basic Radiation Patterns
Dipole antenna radiation
Dipole antenna radiation cont'd
Practical Half-Wave Anatennas
Ground-Affected Radiation Patterns
Vertical half-wave antenna
Changes in Radiation Resistance
Figure 41. Solid patterns produced by vertical half-wave antenna located a half-wavelength above ground.
Table 6. Ground Material Conductivity. - IS11430071
Polarization - IS11430072
Lesson 2/Learning Event 1 Practice Exercise - IS11430073
Learning Event 2: Common Antennas
The 14 percent off-center fed antenna
The inverted L antenna
The slant-wire antenna - IS11430078
Quarter-Wave Antennas
Quarter-Wave Antennas cont'd
Radiation Characteristics
Radiation Characteristics cont'd
Types of Grounds
Types of Grounds cont'd
Bent Antennas
Bent Antennas cont'd - IS11430094
Bent Antennas cont'd - IS11430095
Bent Antennas cont'd - IS11430096
Long-Wire Antennas
Harmonically Operated Antennas in Free Space
Nonresonant Antennas
Nonresonant Antennas cont'd - IS11430101
Nonresonant Antennas cont'd - IS11430102
Near Vertical Incidence Sky-Wave (NVIS)
FM Squelch Capture Effect
FM Squelch Capture Effect cont'd
Lesson 2/Learning Event 2 Practice Exercise
Lesson 2/Learning Event 2 Practice Exercise cont'd
Learning Event 3: Siting - IS11430108
Ground Conductivity For Various Terrain - IS11430109
Single-hop Skip Distances at Various Vertical Take-off Angles - IS11430110
Frequency Planning Guide - IS11430111
Planning an HF Vehicular Radio System
Note
The Short Path Sky Wave
Sag
Figure 81. Doublet antenna sag
Jumpers
Communication between 250 to 800 miles
Tactical Radio System Analysis
Lesson 2/Learning Event 3 Practice Exercise
Lesson 2/Learning Event 3 Practice Exercise cont'd
Learning Event 4: Frequency Selection
Frequency Selection cont'd - IS11430127
Frequency Selection cont'd - IS11430128
Frequency Selection cont'd - IS11430129
Frequency Selection cont'd - IS11430130
Frequency Selection cont'd - IS11430131
Frequency Selection cont'd - IS11430133
Volume 8, Central Europe
Predicted Sunspot Numbers (SSN)
Map of Areas - IS11430136
Index to Lowest High Frequency
Maximum Usable Frequencies (MUF)
Lowest Usable Frequencies (LUF)
Lowest Usable Frequencies (LUF) cont'd - IS11430140
Lowest Usable Frequencies (LUF) cont'd - IS11430141
Lowest Usable Frequencies (LUF) cont'd - IS11430142
Lowest Usable Frequencies (LUF) cont'd - IS11430143
Lowest Usable Frequencies (LUF) cont'd - IS11430144
Lowest Usable Frequencies (LUF) cont'd - IS11430145
Lowest Usable Frequencies (LUF) cont'd - IS11430150
Lowest Usable Frequencies (LUF) cont'd - IS11430151
Lowest Usable Frequencies (LUF) cont'd - IS11430152
Conclusions - IS11430153
Conclusions cont'd - IS11430154
Conclusions cont'd - IS11430156
Conclusions cont'd - IS11430158
Conclusions cont'd - IS11430159
Conclusions cont'd - IS11430161
Conclusions cont'd - IS11430165
Conclusions cont'd - IS11430166
Take-Off Angle Vs Distance - IS11430167
Half-Wave Doublet Antenna Vertical Pattern, Height 25 Feet - IS11430168
Half-Wave Doublet Antenna Vertical Pattern, Height 40 Feet - IS11430169
Half-Wave Doublet Radiation Pattern, Quarter Wave High
Conclusions - IS11430171
Ground-Wave Propagation Charts (GW Book) Volume 2 Central Europe - IS11430172
Map of Areas - IS11430173
Index to Ground Wave Ranges
Ground Wave Ranges in Statue Miles - IS11430175
Ground Wave Ranges in Statue Miles - IS11430176
Ground Wave Ranges in Statue Miles - IS11430177
Conclusions - IS11430178
Lesson 2/Learning Event 4 Practical Exercise
Lesson 2/Learning Event 4 Practical Exercise cont'd
Lesson 2 Comprehensive Practice Exercise - IS11430181
Lesson 2 Comprehensive Practice Exercise - IS11430182
Lesson 2 Calculate Antenna Length
Answers to Practical Exercise Lesson 1 Lesson 1/Learning Event 1
Lesson 2/Learning Event 1
Lesson 2 (Comprehensive)
Radio Wave Propagation and Antennas
