unknown digital signal. what is this mode?
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| Feb 10th 2022, 09:44 | |
AB8OTotal Topics: 0 Total Posts: 0 |
I've noted an unknown (to me) signal several times in the FT8 band region: about 250 Hz wide with 8 channels, each about 10 Hz wide. I've seen it on 40M and 20M. What is this mode? 73, John. AB8O |
| Feb 10th 2022, 12:39 | |
W1VTSuper Moderator Total Topics: 0 Total Posts: 0 |
https://en.wikipedia.org/wiki/Olivia_MFSK Olivia modes are commonly referred to as Olivia X / Y (or, alternatively, Olivia Y / X ), where X refers to the number of different audio tones transmitted and Y refers to the bandwidth in hertz over which these signals are spread. Examples of common Olivia modes are 16/500, 32/1000 and 8/250. |
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