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This page describes a fix to the Low Pass Filter that provides more filtering of the second harmonic of 144-148 MHz.

Video on Baofeng uv-3r menus

UV-3R Review at G4ILO Blog with long textual review, pictures and some sound files

UV-3R reviews at eham.net

This group is for support and discussion of the Baofeng UV-3R micro dual band VHF/UHF radio.

Kings county repeater association review of the Baofeng UV-3r

A modification of the UV3R Baofeng handheld transceiver to improve the built in low pass filter

KA7OEI modification to LPF for the Baofeng UV3R

This page presents a project involving attaching an amateur radio transceiver to an Arduino to create a 'fox' signal for radio direction finding practice. This project can be used to practice direction finding skills by locating a radio transmitter in a hidden location. The project involves transmitting the station ID using Morse code and can be a fun and educational activity for students or hobbyists interested in radio direction finding. The author shares their experience with radio direction finding and provides instructions on how to build the project using a Baofeng UV-3R radio and an Arduino Uno.