This signal amplifier for ATV in the 427 to 439 MHz band was found in a magazine 73 for radio amateurs of the 90's. The circuit is installed next to the antenna on the mast itself.
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This receiver receives signals in the range of 3.2 to 16 MHz, presenting a good sensitivity thanks...
This circuit makes use of an unusual Analog Devices component today. The circuit is from a 90's...