The Micro-Amp 3 is an 8 watt 2-meter RF amplifier intended for use with the
Micro-Trak 300 APRS transmitter and the
Micro-Trak TinyTrak4 APRS transceiver.
This design is intended for use with transceivers or transmitters.
The amplifier features a relay-based Transmit/Receive (T/R) switch that will pass received signals from the
antenna to the input port. In fact, if no DC power supply is provided to the amplifier, the amplifier will
pass signals bi-directionally with minimal signal losses. This provides a simple mechanism for switching
between high and low power operation.
The amplifier will operate reliably with an RF input of between 300 to 500 milliwatts.
Do not exceed 500 milliwatts input power.
It was designed for low duty cycle operation, and does not have a heat sink suitable for continuous operation.
It is intended only for use only in the Amateur Radio Service,
Micro-Amp 3 Built - $62.