thinQmaster Virtual testing partner Adaptive practice exams that find your weak spots and drill them. Every answer explained. From $69
Enroll

thinQmaster

Find your exam

Five questions free, before you decide.

Step 1 · choose a vendor

In one of our camps? Your practice exams come with the tuition — they are on your study page already.

Wireless & Mobility · Intermediate

MIMO Notation

The TxR:S format describing transmit chains, receive chains, and supported spatial streams.

Definition

MIMO capability is written as transmitters x receivers : spatial streams, for example 3x3:2. The number of streams cannot exceed the lower of the transmitter or receiver count. The notation helps compare AP and client capabilities.

Example

A 4x4:4 AP supports up to four spatial streams.

Exam tip

In 3x3:2, the device has three radio chains but supports only two streams.

Related terms