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Ham Radio - Amateur Radio. The King of Hobbies!
72 Pins
·
3y
By
Claude Jollet
a diagram showing how to measure the height of each individual
Ionospheric Propagation of Radio Waves Explained
A pictorial diagram of the ionosphere layers responsible for ionospheric propagation of radio waves.
an electrical box attached to the side of a wooden fence with instructions on how to use it
A 160 Meter Antenna Hybrid Design
Photo showing the weatherproof junction box and homemade "ugly RF choke" of my 160 meter antenna feed point.
a computer screen with sound waves on it
How to Stop Electromagnetic Interference on HF
a close up of a radio screen with sound waves
How to Stop Electromagnetic Interference on HF
an electrical junction box is shown with wires attached to the outlet and wiring for it
A 160 Meter Antenna Hybrid Design
Inside view of the weatherproof box protecting the feedpoint connections to the 1/4 wave, end-fed, 160 meter antenna.
the earth's layers are shown in this diagram
6 Meter Ham Band Activity & Its Propagation Modes Explained
Pictorial diagram showing how the 'E' layer of the ionosphere deflects 50 MHz signals back toward the surface of the earth, thus contributing to 6 meter ham band activity.
the earth's layers are labeled in black and white, with arrows pointing to each other
Ionospheric Propagation of Radio Waves Explained
Pictorial diagram of ionospheric propagation of radio waves in action.
the diagram shows how to wire an antenna
A 160 Meter Antenna Hybrid Design
A 160 Meter Antenna Hybrid Design
an image of a radio signal with the words,'ducting of vf radio signals
6 Meter Ham Band Activity & Its Propagation Modes Explained
Pictorial diagram illustrating a temperature inversion at the bottom of a valley which occasionally contributes to 6 meter ham band activity in the late summer months and early fall.
a house in the woods with a large metal object hanging from it's side
How to Stop Electromagnetic Interference on HF
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a hand is holding an electronic device in front of the camera, which displays data
Portable Linear-Loaded NVIS Antenna for 40 Meters
Picture shows the SWR reading - 1.28:1 - at the (field adjustable) frequency of resonance - 7.04 MHz - of VE2DPE's portable 40 m inverted 'V' linear-loaded NVIS antenna.
a hand is holding an electronic device in front of the camera and text reads rigexert
Portable Linear-Loaded NVIS Antenna for 40 Meters
Picture shows the (field adjustable) frequency of resonance - 7.04 MHz - of VE2DPE's portable 40 m inverted 'V' linear-loaded NVIS antenna.
the back end of a pole with wires attached to it and an arrow pointing up
Portable Linear-Loaded NVIS Antenna for 40 Meters
Picture shows the twin lead folded back on itself at the extremities of VE2DPE's portable 40 m inverted 'V' linear-loaded NVIS antenna to increase its resonant frequency.
a close up of an electronic device with the time on it's display screen
A 160 Meter Antenna Hybrid Design
Display on a RigExpert antenna analyzer of the SWR value, at resonance, of a 160 meter antenna of hybrid design.
an electronic device displaying the time on it's display screen and instructions for how to use it
A 160 Meter Antenna Hybrid Design
Display on a RigExpert antenna analyzer of the frequency of resonance of a 160 meter antenna of hybrid design.
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