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Adafruit Feather LoRa M0 433Mhz
Tracker - radio, microcontroller and charge/battery management
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Adafruit Ultimate GPS Featherwing
Tracker - GPS position source and timing source for pseudo-TDMA
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3.7v >1200mAh LiPo cell w/ JST connector.
Tracker - power supply 1200mAh lasts around 24 hours with 20 second transmissions. Consider 1x18650@2200mAh
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433Mhz 1/4 wave antenna - u.Fl
Tracker - rubber duck antenna for tracker. Consider SMA-u.Fl to increase buying options
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u.Fl SMT
Tracker - adds u.Fl connector to Feather LoRa M0 board
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433Mhz mag mount antenna
Base Station - reception antenna - magmount makes it easy to take down and install but you might consider a tall pole with 5 element colinear for better range
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Raspberry Pi 3
Base Station - map server, WiFi access point
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Uputronics Hoperf RFM98 expansion board
Base Station LoRa reception. Could use a bare RFM98 module for cost, but this is neat. https://store.uputronics.com/index.php?route=product/product&path=61&product_id=68
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UPSPico Raspberry Pi UPS
(was MoPi power unit, but can't do desired UPS functions)
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DS3231 RTC module
Base Station Real-time clock source to set time on Pi at boot - otherwise position reports are wrong. Could use mobile device to set time but this works fine. https://thepihut.com/blogs/raspberry-pi-tutorials/17209332-adding-a-real-time-clock-to-your-raspberry-pi
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