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| === What is SWR? === | | === What is SWR? === |
− | SWR (''Standing Wave Radio'') measure the performance of signal emitting in the atmosphere. | + | SWR (''Standing Wave Radio'') measure the performance of signal emitted in the atmosphere. |
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| + | On a radio board, the signal is generated by the transceiver, flowing into the antenna cable and finally through the antenna to be emitted into the atmosphere. |
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| + | Depending on the antenna, there is some rejection of the signal back to the transceiver. This means than a portion of the signal is not emitted to the air! This is why the SWR measurement is done. |
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| + | A poor antenna design will have greater SWR (>2) meaning that range of transmission (or reception) will be reduced! Very bad SWR may even dammage the transceiver! |
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