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  • RSSI ==> The level of signal strength (including noise)
  • CINR ==> The channel "quality" of the modulated carrier

CINR values will be low in cases of co-channel, or adjacent channel interference. Low RSSI values are usually caused by channel fading and attenuation. The CINR determines the modcod used and how fast the link will close during registration and is directly related to ACM, If you check your vendor documentation, they should provide you with the CINR/MODCOD table


CINR: Carrier to Interference + Noise Ratio[modifica]

Carrier to Interference-plus-Noise Ratio (CINR), expressed in decibels (dBs), is a measurement of signal effectiveness. The carrier is the desired signal, and the interference can either be noise or co-channel interference or both. In order for the signal receiver to be able to decode the signal, the signal must fall into an acceptable CINR range, which differs with the technology used (i.e., CDMA, GSM, etc.).


RSSI Indicatore di forza del segnale (ricevuto)[modifica]

In telecommunications, received signal strength indicator (RSSI) is a measurement of the power present in a received radio signal. RSSI is a generic radio receiver technology metric, which is usually invisible to the user of the device containing the receiver, but is directly known to users of wireless networking of IEEE 802.11 protocol family.

RSSI is often done in the intermediate frequency (IF) stage before the IF amplifier. In zero-IF systems, it is done in the baseband signal chain, before the baseband amplifier. RSSI output is often a DC analog level. It can also be sampled by an internal ADC and the resulting codes available directly or via peripheral or internal processor bus.

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