So 160 MHz is unlikely to have had much effect on your home Wi-Fi network’s performance up to now. As you’ll see in a bit, I confirmed that it does indeed support contiguous 160 MHz. I’m told the only 11ac device that supports 160 MHz mode is Intel’s Wireless-AC 9260 M.2 card for notebooks. Since smartphone makers are notoriously secretive about Wi-Fi specs, I have no idea if there are any 160 or 80+80 devices out there. So most smartphone and mobile device makers have opted to not support either 160 or 80+80 MHz bandwidth mode. Supporting 80+80 mode complicates (and increases cost) of radio design in wireless devices. NETGEAR’s R7800 and R9000 and Synology’ RT2600ac are the only ones that come to mind to support 160 MHz bandwidth. Only a handful of designs have opted to support 160 MHz or 80+80 bandwidth, usually more as a marketing ploy to inflate router class numbers, as Linksys did with its Marvell-based "AC3200" WRT3200ACM. (Yes, there is channel 165, but that’s helpful only if you’re running 20 MHz 5 GHz channels).įortunately for those struggling with overcrowded networks, support for 160 MHz channels has not caught fire in 802.11ac. This avoids using DFS channels, but uses all eight 5 GHz channels available to U.S.
There is also an alternative of "80+80" mode, which allows a gap between two four-channel groups. Router makers have generally avoided the extra complexity of designing their products to support DFS and the extra cost of the separate FCC certification required. without using UNII-2 and 2e DFS channels. As the channel map above shows, this isn’t possible in the U.S. The catch is 160 MHz eats up eight adjacent 20 MHz wide channels. So, for example, a single stream AC device that achieves only a 433 Mbps maximum link rate could double up to 867 Mbps and a two-stream client that maxes out at 867 Mbps count achieve a four stream equivalent maximum of 1.7 Gbps. Its raison d’etre has been to enable mobile clients, which typically support one or two streams, to double their link rates to achieve higher bandwidth. Support for 160 MHz channel bandwidth in 5 GHz is included in the 802.11ac standard. Some tests were rerun due to problems found in the test methods.
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