AV Design Toolkit

Extron NAV (PURE3) Bitrate Calculator

Extron · Raw and stream bitrate for one Extron NAV (PURE3) signal.

Raw bitrate
—
Stream bitrate (Extron NAV (PURE3))
—
Compression ratio
—
Streams on 1 GbE
—
Streams on 10 GbE
—
Recommended link
Endpoint power
—

Supports up to 444 · 10-bit. Wavelet codec; 1 GbE (NAV E) and 10 GbE (NAV Pro).

Plan the whole switch →

About Extron NAV (PURE3)

Extron NAV is a scalable AV-over-IP platform using the PURE3 wavelet codec, available in 1 GbE (NAV E) and 10 GbE (NAV Pro) forms.

NAV is Extron’s answer to matrix switching over the network: encoders/decoders that carry 4K60 4:4:4 with ultra-low latency. The PURE3 codec is a wavelet design, keeping each stream frame-independent and visually lossless.

The bitrate is the raw signal divided by the codec ratio (≈10:1 here). On the 1 GbE NAV E line, a 1080p30 4:4:4 source is about 1.49 Gbps raw and roughly 149 Mbps compressed; the 10 GbE NAV Pro line handles higher resolutions and lower compression.

Worked example

A 1080p30 4:2:0 signal is 746.5 Mbps raw; PURE3 compresses it about 10:1, so the stream is about 74.6 Mbps. NAV E and NAV Pro differ in link speed, not in how the ratio works.

Frequently asked questions

What is PURE3?

Extron’s proprietary wavelet codec used across the NAV platform for low latency and 4:4:4 colour.

NAV E vs NAV Pro?

NAV E is 1 GbE (compressed); NAV Pro is 10 GbE with higher bandwidth for demanding, higher-resolution applications.

Is NAV proprietary?

Yes, PURE3 is Extron’s own codec, so NAV interoperates within the Extron ecosystem.

What is the difference between raw and stream bitrate?

Raw is the uncompressed signal (width × height × frame rate × bits per pixel); stream is what the codec actually puts on the wire after compression. The compression ratio is raw ÷ stream.

What do 4:4:4, 4:2:2 and 4:2:0 mean?

They describe chroma subsampling — how much colour detail is kept relative to brightness. 4:4:4 keeps full colour (3× bit depth per pixel), 4:2:2 keeps two-thirds, and 4:2:0 keeps half (1.5×).

Related calculators

Disclaimer: bitrates are planning estimates. Confirm final figures with your codec and switch vendor.