A few simple ham radio projects which are not very expensive!
Here are a few classic, inexpensive, and rewarding amateur radio projects that you can easily put together on a weekend: 1. Roll-Up Twin-Lead J-Pole Antenna What it is: A lightweight, highly efficient vertical antenna designed for the 2-meter (144 MHz) or 70-centimeter (430 MHz) VHF/UHF bands. Cost: Under $5. Materials: A short length of 300-ohm or 450-ohm ladder line (or TV twin-lead), a length of coaxial cable, and a PL-259 or BNC connector. Why it's great: It rolls up neatly into a backpack, making it ideal for portable operations, emergency preparedness kits, or hanging inside a window or tree branch to dramatically outperform a stock rubber-duck antenna. 2. Custom RF Dummy Load What it is: A non-radiating device that safely absorbs RF energy from a transmitter so you can test power output, check audio modulation, or tune equipment without putting signals on the airwaves. Cost: $5 – $15 (mostly for connectors and resistors). Materials: A bank of non-inductive...