2 Bill of Materials

Before buying antennas, cables, mounting etc. for radar applications, it's advised to first review this page: RETINA Purchase, Install, and Configuration Guide

Device	Description	Required?	Provided with Offworld Labs Purchase	Link
Raspberry Pi (4GB RAM)	Main system processing	REQUIRED	PROVIDED	Available worldwide
Raspberry Pi Case & Power Supply	Housing & Power	REQUIRED	PROVIDED	available here
64GB microSD SIM Card	Main system memory	REQUIRED	PROVIDED	Sandisk Extreme
SDRplay RSPduo	Signal Measurement	REQUIRED	PROVIDED	Available from Manufacturer worldwide
USB A to B	Connects Pi to RSPduo	REQUIRED	PROVIDED	Available at Digikey worldwide
Telescoping Antenna	Initial Categorization	OPTIONAL	NOT	available here
Surveillance Antenna	Sensing Airborne Objects	REQUIRED	NOT
Reference Antenna	Comparing reflected signals to original signal	REQUIRED	NOT
Coax Cables	RG6 can work, low loss cables like RG11 recommended.	OPTIONAL	NOT
Coax Grounding Block	For lightning arresting if mounting your antenna in place it could be struck by lightning	RECOMMENDED	NOT
Grounding Wire and Rod	For connecting your Grounding Block to the earth and service entrance grounding for lighting dissipation	RECOMMENDED	NOT
Antenna Mounts	Discussed more in install section	OPTIONAL	NOT
Phone or Computer	Required to configure system	REQUIRED	NOT
SMA to Coax Adaptors	Needed to land coax cables into the SDRduo	OPTIONAL	NOT
Ferrites	To remove common mode noise from Coax	RECOMMENDED	NOT
Coax 50 to 75 Ohm Matching Pad	Can be used to remove some loss connecting 50 to 75 Ohm devices	OPTIONAL	NOT
Micro HDMI and Monitor with USB Keyboard	For those who are more capable with linux and want access to the CLI	OPTIONAL	NOT
Ethernet Cable	For connecting the system over ethernet rather than Wifi for a more stable connection	OPTIONAL	NOT

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