AE5NE

joined 1 year ago
[–] [email protected] 1 points 1 year ago

More efficient digital modes never used high baud rates, though. Often they used surprisingly low baud rates.

As an example, 4GLTE has a maximum baud rate of 15ksym/s

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

The experimental side of ham radio was never affected, as modern digital modes use low-symbol-rate multicarrier modulation, never high symbol rate bilevel codes, due to multipath effects on short symbols.

This limits total data rate in a way the baud limit never did.

[–] [email protected] 1 points 1 year ago (1 children)

personally, I think the limit should’ve been higher, at least 5 kHz, when the AM Phone guys are occupying 10 to 15 kHz with their hi-fi broadcast set ups.

And a hard bandwidth limit really does limit total data rate, the symbol rate limit didn’t - exactly the opposite effect that the loud anti-baudrate-limit people wanted

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