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Forum: Tech Log

21st Aug 2017, 11:42

Replies: 20

How does a short HF antenna on an Airbus transmit/receive such long wavelengths?

Views: 30,161

Posted By G0ULI

It is important to realise that there is a...

It is important to realise that there is a difference between electrical isolation and radio frequency isolation. Electrical isolation merely means that two conductive materials are separated by some...

Forum: Tech Log

20th Aug 2017, 17:33

Replies: 20

How does a short HF antenna on an Airbus transmit/receive such long wavelengths?

Views: 30,161

Posted By G0ULI

Teapot Rebellion A balun or unun stands for...

Teapot Rebellion

A balun or unun stands for balanced to unbalanced, or unbalanced to unbalanced coupler. Typically a balun is used when connecting an unbalanced coaxial cable to a balanced antenna...

Forum: Tech Log

20th Aug 2017, 02:25

Replies: 20

How does a short HF antenna on an Airbus transmit/receive such long wavelengths?

Views: 30,161

Posted By G0ULI

It may help to think of the antenna as just a...

It may help to think of the antenna as just a device to couple the radio waves coming out of the transceiver at an impedence of typically 50 Ohms to the impedence of free space which is approximately...

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