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Cantenna; useful?

Catwell

The Cantenna, and other tube based wireless boosting devices, have been on the market for years. I've always wanted to get one to see if it would help subdue noise in wireless communication. And, I thought it could help use various free city wifi access points.

 

Has anyone used one, and how well does it work for you?

 

C

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  • Before I started my hibernation in my cave, the US company, Heathkit, sold the Cantenna, a high power HF frequency range RF load for testing high power (perhaps up to 1KW) transmitters at low duty cycle. It was a non inductive power 50 ohm resistor immersed in a gallon can of mineral oil. Some enterprising people managed to obtain transformer oil, well suited for the job, except, now, that PCB type oil is considered hazardous waste. The name Cantenna, comes about from the use of the 50 ohm termination (dummy load) in this CAN as a substitute for a radiating anTENNA.

    I realize this term now applies to what I call a "Pringles (brand name of snack food) can" type of waveguide directive antenna.

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  • Before I started my hibernation in my cave, the US company, Heathkit, sold the Cantenna, a high power HF frequency range RF load for testing high power (perhaps up to 1KW) transmitters at low duty cycle. It was a non inductive power 50 ohm resistor immersed in a gallon can of mineral oil. Some enterprising people managed to obtain transformer oil, well suited for the job, except, now, that PCB type oil is considered hazardous waste. The name Cantenna, comes about from the use of the 50 ohm termination (dummy load) in this CAN as a substitute for a radiating anTENNA.

    I realize this term now applies to what I call a "Pringles (brand name of snack food) can" type of waveguide directive antenna.

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