Build a Wide-band Antenna Preamplifier Circuit Diagram. This is a Wide-band Antenna Preamplifier Circuit Diagram. This circuit has a gain of around 20 dB from 40 to 860 MHz, covering the entire VHF, FM, commercial, and UHF bands. A phantom power supply provides dc to the Preamplifier via the coaxial cable feeding the unit.
Wideband Antenna Preamplifier Circuit Diagram
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