@Securer4u 

There is no one frequency.  Please refer to this WiKi

https://en.wikipedia.org/wiki/List_of_WLAN_channels#:~:text=The%20802.11%20standard%20provides%20several,GHz%20and%2060%20GHz%20bands.

@DAServices 

Thank you ,but I already visited that wiki page.

the issue is that I sent a two Deco m5 device to our branch in Israel and the Israeli customs asking for the 5ghz exact radio frequency range to release it from the customs.

im kind of stuck on that.

@Securer4u 

Here is my interpretation based on my understanding of the Deco M5 design and the interpretation of the WiKi document.

The Deco M5 is designed to conform to the USA FCC WiFi standards.  So it can operate on any of the allocated channels.  The firmware attempts to find the least congested channel and operate there. 

The USA 5Ghz band is defined as any of the following;

Channels 36, 38, 40, 42, 44, 46, 48,(5150 to 5250Mhz)   or  Channels 149, 151, 153, 155, 157, 159,161 (5735 to 5815Mhz)

In reading the WiKi these channels also conform to the "Israel Wireless Telegraph Order dated 4 February 2021.

If you purchased the Deco M5s in the USA, then the devices are conforming to the above WiKi stated standards. 

IMHO

@Securer4u 

At the end of the user guide, it shows the various certs depending on the country: link

There is a mention of the following frequencies:

2412MHz—2483.5MHz (20dBm)

5150MHz—5250MHz (23dBm)

@Securer4u 

Hello Tony and DAServices,
 

I want to thank you all for your help.

This is exactly what I need.