Mobile iGate
Photo Courtesy Manuel Lausmann, DO3MLA
By Manuel Lausmann DO3MLA ©Manuel Lausmann YouTube Channel Website Mobiles LoRa APRS Igate
(iGate Firmware von Peter Buchegger OE5BPA) (Hardware: TTGO T-Beam V1 or V1,1)
A mobile LoRa APRS iGate can provide iGate functionality anywhere there's a WiFi connection. For example, take your iGate on your next SOTA hill climb, vacation, camping etc. with multiple stops.
Installation of the firmware according to the instructions in video format or as PDF. Recommendation: Before starting the installation, perform a GPS RESET on the TTGO T-Beam in order to Avoid problem from the beginning.
It's recommended that a mobile LoRa APRS iGate is configure for several Wifi access points such as the Wi-Fi hotspot from the smartphone, mobile router, etc., so that you can avoid editing the configuration over and over again. You can pre-load up to three SSID and password combinations onto the TTGO T-Beam
Edit DATA > is-cfg.json and insert the SSID and password combinations for multiple APs into the code as shown in the figure below. IMPORTANT! Pay attention to each comma and parenthesis and other characters and spacing.
Photo Courtesy Manuel Lausmann, DO3MLA
Edit DATA > is-cfg.json and set "use_gps" to true. See the figure below.
Photo Courtesy Manuel Lausmann, DO3MLA
That's it, that's all there is to do. The first run of the TTGO it can take up to 10min until the GPS has obtained a fix. Important! Go outside to get GPS reception. When all this is done, the current GPS position should be used for each beacon transmission with are sent to the APRS server.
Important! The lat-lon position can appear to jump around a bit while jumping or hiking as well as during a standstill. See the figure below.
Photo Courtesy Manuel Lausmann, DO3MLA