SINPO
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SINPO or SINPO code is a code used to describe the quality of radio transmissions, especially in reception reports written by shortwave listeners. Each letter of the code stands for a specific factor of the signal, and each item is graded on a 1 to 5 -scale (where 1 stands for very bad and 5 for very good).
[edit] Code explained
- S: Signal strength
- I: Interference
- N: Noise
- P: Propagation
- O: Overall merit
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