Changes between Version 28 and Version 29 of expansion/gw16146
- Timestamp:
- 09/01/2022 11:29:48 PM (20 months ago)
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expansion/gw16146
v28 v29 48 48 * dual embedded ARM Cortex-M0 and Cortex-M3 processor 49 49 * SPI host interface 50 * Only 1 GW16146 is supported on a give system; as there is no concrete way to associate SPI bus number with particular device. The bus number assignment relies on USB 51 bus scan and device probe sequence 50 * Only 1 GW16146 is supported on a give system; as there is no concrete way to associate SPI bus number with particular device. The bus number assignment relies on USB bus scan and device probe sequence 52 51 53 52 RF transmitter specifications: … … 74 73 === MCS 75 74 Modulation and coding schemes (for 1 spatial stream 1/2/4MHz channels): 76 ||= MCS index =||= Modulation and coding rate =||||= 1MHz (mbps) =||||= 2MHz (mbps) =||||= 4MHz(mbps) =||75 ||= MCS index =||= Modulation and coding rate =||||= 1MHz BW (mbps) =||||= 2MHz BW (mbps) =||||= 4MHz BW (mbps) =|| 77 76 || || ||= long GI =||= short GI =||= long GI =||= short GI =||= long GI =||= short GI =|| 78 77 || 0 || BPSK 1/2 || 0.3 || 0.33 || 0.65 || 0.72 || 1.35 || 1.5 || … … 85 84 || 7 || 64-QAM 5/6 || 3.0 || 3.34 || 6.5 || 7.22 || 13.5 || 15.0 || 86 85 || 10 || BPSK 1/2 x 2 || 0.15 || 0.17 || - || - || - || - || 87 - see rate table at: https://en.wikipedia.org/wiki/IEEE_802.11ah 88 - **these are maximum PHY data rates - actual throughput depends also on packet loss and most importantly SPI and USB bus overhead and latency which effectively reduces throughput to a max of around 4.5mbps.** 86 - See rate table at: https://en.wikipedia.org/wiki/IEEE_802.11ah 87 - **These are maximum PHY data rates - actual throughput depends also on packet loss and most importantly SPI and USB bus overhead and latency which effectively reduces throughput of the GW16146 to a max of around 4.5mbps.** 88 - Range is affected by BW used. 1MHz should be used for long range applications. See some example range by BW here: [https://youtu.be/Y_qmCR1so2c?t=188] 89 89 90 90 === Receiver
