I usually don't look at the five dials of what I will call the base TechTool screen, but I happened to notice that the Network speed dial badly misrepresented the potential speed of my only network interface. The dial currently says "11Mbps Network", while the System Report from the About This Mac screen shows me:
Interfaces:
en0:
Card Type: AirPort Extreme (0x14E4, 0x152)
Firmware Version: Broadcom BCM43xx 1.0 (7.77.37.5.1a3)
MAC Address: a4:5e:60:ed:8b:7f
Locale: FCC
Country Code: US
Supported PHY Modes: 802.11 a/b/g/n/ac
Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 149, 153, 157, 161, 165
Wake On Wireless: Supported
AirDrop: Supported
AirDrop Channel: 149
Auto Unlock: Supported
Status: Connected
Current Network Information:
foo:
PHY Mode: 802.11ac
BSSID: ec:4f:82:ee:90:ec
Channel: 153
Country Code: US
Network Type: Infrastructure
Security: WPA2 Personal
Signal / Noise: -50 dBm / -92 dBm
Transmit Rate: 585
MCS Index: 7
This screen doesn't show that this is a 80MHz channel, but it is, as I can see from other tools. 11 Mbps is a completely understandable value to report for 802.11b, but an 80 MHz 802.11ac channel should not be represented this way. This Transmit Rate shown above is one example of this. If I understand correctly, Transmit Rate shown above is the downstream PHY rate (in Mbps) reported by the radio. That number - even though it overstates the TCP throughput by a fact of 1.5 or 2 - would be a more useful number to report.
Interfaces:
en0:
Card Type: AirPort Extreme (0x14E4, 0x152)
Firmware Version: Broadcom BCM43xx 1.0 (7.77.37.5.1a3)
MAC Address: a4:5e:60:ed:8b:7f
Locale: FCC
Country Code: US
Supported PHY Modes: 802.11 a/b/g/n/ac
Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 149, 153, 157, 161, 165
Wake On Wireless: Supported
AirDrop: Supported
AirDrop Channel: 149
Auto Unlock: Supported
Status: Connected
Current Network Information:
foo:
PHY Mode: 802.11ac
BSSID: ec:4f:82:ee:90:ec
Channel: 153
Country Code: US
Network Type: Infrastructure
Security: WPA2 Personal
Signal / Noise: -50 dBm / -92 dBm
Transmit Rate: 585
MCS Index: 7
This screen doesn't show that this is a 80MHz channel, but it is, as I can see from other tools. 11 Mbps is a completely understandable value to report for 802.11b, but an 80 MHz 802.11ac channel should not be represented this way. This Transmit Rate shown above is one example of this. If I understand correctly, Transmit Rate shown above is the downstream PHY rate (in Mbps) reported by the radio. That number - even though it overstates the TCP throughput by a fact of 1.5 or 2 - would be a more useful number to report.