One UV (Ultra-Violet) signal combined with local repeater and active ham radio operators, plus an understanding of satellite tracking via microwave and lunar communication.
2. Before purchasing, test and set up the environment. Ideally, you should have a spectrum analyzer to understand the functions of the radio's standard features. Also, learn how to adjust them.
3. Remember that antennas are more important than radios. Invest in a good, simple antenna; DIY if necessary.
Four daily UV K5 and K6 are sufficient.
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