How to use a manual antenna tuner - Ham Radio Q&A

Antenna tuners are a vital, yet slightly misunderstood ham radio station accessory. In this video we talk about what an antenna tuner does and doesn't do, how it works, and how to tune your antenna system with a manual antenna tuner.

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Antenna tuners, also called trans-matches, match boxes, tuning units, or antenna couplers are devices that match the impedance from an antenna system to your transceiver. Amateur radio transceivers expect a 50 ohm impedance from the antenna, but not all antennas will deliver that impedance. That’s where the tuner comes in. A tuner typically consists of an inductor and variable capacitors can be adjusted to create the proper impedance.

Now tuners don’t actually ‘tune’ your antenna. They don’t change the physical characteristics or make the antenna better. Instead they just provide the proper impedance match to the transceiver, so the transceiver can operate in a more efficient manner.

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