What is the definition of these terms? Would a system with signal to noise ratios of uplink 100dBHz and downlink 80dBHz be downlink-limited?

  • $\begingroup$ That's impossible to say. Systems are typically limited by more things than just their end-link bandwidths. $\endgroup$ – Marcus Müller Jun 6 at 14:40
  • $\begingroup$ I'm voting to close this question as off-topic because it's not about amateur radio – a bandwidth of 100 dBHz (10 GHz) implies the channel is either optical or without the realm of amateur radio. $\endgroup$ – Marcus Müller Jun 6 at 14:43
  • $\begingroup$ @MarcusMüller it's a C/N0 figure, not a bandwidth. $\endgroup$ – hobbs - KC2G Jun 6 at 15:17
  • $\begingroup$ (they're dimensionally equivalent because noise density has units of power/Hz^-1, so power/noise density ends up with units of Hz, or dBHz) $\endgroup$ – hobbs - KC2G Jun 6 at 15:29
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    $\begingroup$ Questions about the technology of radio (amateur or otherwise) are expressly on topic: ham.stackexchange.com/help/on-topic $\endgroup$ – Phil Frost - W8II Jun 6 at 16:09

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