Changes between Version 41 and Version 42 of expansion/gw16122


Ignore:
Timestamp:
06/28/2018 04:28:44 PM (6 months ago)
Author:
Ron Eisworth
Comment:

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  • expansion/gw16122

    v41 v42  
    200200== Range Testing ==
    201201
    202 Gateworks did some basic range testing with the GW10124 2dBi Omni Antenna on the 915Mhz band.
    203 A successful link was acquired at 4500ft/1.4km over water.
    204 
    205 Using a directional antenna, it is very likely the range could be increased further. Additionally, there is different modes and tuning that can be done in software to increase the range, such as LRM (long range mode).
     202Gateworks did basic range testing with the GW16122 using a 2dBi Omni Antenna on the 915Mhz band. A successful link was acquired at 4500ft/1.4km over water. Note both the transmitter and receiver were only 1m off the ground so much better performance would be expected if the antennas were mounted higher to clear the Fresnel zones. Using a directional antennas, range can be increased further with links easily greater then >10Km. Additionally, there is different modes and tuning that can be done in software to increase the range, such as LRM (long range mode).
    206203
    207204TI has published an Excel spreadsheet for calculating theoretical distances. Please review this here: [https://e2e.ti.com/support/wireless_connectivity/bluetooth_low_energy/f/538/t/375823]