[amsat-bb] XW-2D Returns to Life!
Zach Metzinger
zmetzing at pobox.com
Thu Mar 5 16:18:41 UTC 2020
On 2020-03-05 04:06, Hasan al-Basri via AMSAT-BB wrote:
> Keep in mind, these are all RELATIVE measurements not ABSOLUTE.
Indeed. I suggest not using the unit dBm, as that is decibels relative
to 1 milliwatt. This is an absolute unit.
It is common to refer to some other standard when comparing relative
power, such as dbFS (decibels relative to full scale, usually a negative
number) for an ADC.
Perhaps dBANF might work, which would be dB relative to Agreed Noise
Floor. I don't think I'd use "dBNF", as that might be confused with
Noise Figure in dB.
--- Zach
N0ZGO
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