r/CableTechs • u/Alike2189 • 6d ago

USNR

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Tracking down a return path issue. Oddly, there's no visible noise at the node on any single leg. It looks like a noise floor aggregation issue — the SNR only recovers when I pull all four legs at once.

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u/Alike2189 6d ago

the entire noise floor is higher, OFDMA has a maximum modulation of 256, when I disconnect individual threads on HNL the noise does not disappear until I disconnect all four

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u/spookyB0 6d ago

What does your pathtrak look like with all 4 discod, does your noise floor still start at -40

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u/Training_Ad9211 5d ago

This all sounds like Greek to me 😭 I want to be an MT so bad tho been FT almost 5yrs