Here is the screenshot of my wireshark capture. I am seeing 3 spatial streams instead of 1 after setting the antennas. --- Chun-Yeow On Wed, May 14, 2014 at 3:18 PM, Avery Pennarun wrote: > On Wed, May 14, 2014 at 2:25 AM, Yeoh Chun-Yeow wrote: >> Here is from the fw_stats: >> >> ath10k PEER stats (1) >> ================= >> >> Peer MAC address 04:f0:21:0c:a5:1c >> Peer RSSI 43 >> Peer TX rate 877500 >> Peer RX rate 877500 >> >> TCP throughput is roughly around 151Mbps. > > In my tests it's easy to achieve >151 Mbps with a 40 MHz channel and > 2x2. So if you're using an 80 MHz channel (twice the speed) and only > one antenna (half the speed) you could still get 151 Mbps pretty > easily. > > I wouldn't be surprised if your speed is being limited by something > else, maybe the host CPU or a slow interconnect on the station or AP > (USB perhaps?), so it doesn't look "worse" with only one antenna > because it should be at least twice as good when operating normally. > > If you use wireshark or tcpdump you should be able to check the MCS > level of the packets and see that it's lower with fewer antennas. > > Have fun, > > Avery