Learn how amateur radio repeater works. Ten great resource to learn amateur radio repeaters beasics, operations and how to configure radios to work repeaters
Take a look at these homebrew portable antenna projects for 2 meters band, you can build at home.
Band Conditions, An HF Mobile Antenna, HF Band QRM/QRN Noise Canceller, Carmobeam, A simple DIY Desk Microphone, Colour TFT display with Touch controlled VFO BFO, Outdoor HF Antenna Switch, FT8900 Handsfree , Radio Frequency - ICOM R8500, Barron County Amateur Radio Association,
ICOM IC-7300 Review, 2N2/20 CW Transceiver, Tuning with he AL 811H Amplifier, 2N2/30 30m QRP Trasceiver, Tuning with TL-922 Amplifier, Precision VXO, Return Loss Bridge, Yaesu FT-450D Review, 2N2/6 40 to 6 m Transverter, ICOM IC-756 PRO II Review