SoftRF

DIY, multi-functional, compatible, sub-1 GHz ISM band radio based proximity awareness system for general aviation.

Features

¹ - it is necessary for a reader to distinguish the difference between statement "compatible" and statement "fully compatible".
SoftRF implements only a reasonable minimum of the protocols specs. No "bells and whistles" so far.
² - FANET+ can not receive FLARM. However it is able to transmit it.
³ - valid for Prime Mark II , Dongle , Mini , Badge , Bracelet , Academy, Octave and Lego Editions; valid for Standalone , UAV and Uni Editions with optional DIY SoftRF LoRa RF module
⁴ - Reception of traffic 'downlink' frames only. Valid for Uni Edition alone and for Standalone Edition with optional DIY SoftRF UAT module
⁵ - Reception of traffic 'downlink' frames only. Valid for ES Edition
⁶ - also known as "raw ADS-B"

Model(s)	Platform	First appearance	Notes
1 Prime 2 Standalone 3 UAV 4 WebTop Serial	Espressif ESP8266	Q4 2015	Prime model is no longer supported - use Prime MkII instead.
1 Prime Mark II 2 Standalone + adapter 3 UAV 4 SkyView EZ 5 Flight Recorder 6 WebTop USB	Espressif ESP32 ESP32-S2 ESP32-S3	Q1 2018	Today's best platform
1 Raspberry Edition 2 SkyView Pi	Broadcom BCM283X (Raspberry Pi)	Q4 2018	Good for use together with RTL-SDR dongles to achieve additional 1090ES (and 978UAT) ADS-B air traffic reception.
1 UAT module 2 Uni	Texas Instruments CC1310 and CC1352R	Q1 2019	1 Unique RF radio specs are useful for UAT978 ADS-B reception [ 1 , 2 , 3 ] ; 2 holds FCC/CE mark
1 Retro 2 Dongle	STMicroelectronics STM32	Q3 2019
Mini	Cypress PSoC 4100S	Q3 2020	1 good add-on candidate for modded Kobo e-Readers ; 2 holds FCC/CE mark
Badge	Nordic Semiconductor nRF52840	Q4 2020
ES	NXP Semiconductors LPC4320	Q2 2021	Unique RF radio specs are useful for 1090ES ADS-B reception [ 1 , 2 ]
1 Academy 2 USB2BT	Microchip (Atmel) SAM D21	Q4 2021	good for teaching students of air traffic proximity awareness
Octave	ASR Microelectronics ASR6601	Q1 2022	the best 'price per radio protocol' ratio on the market
Lego	Raspberry Pi Foundation RP2040	Q1 2022	holds FCC/CE mark

Radio	Model(s)	First appearance	Notes
Nordic Semiconductor nRF905	1 Prime 2 Standalone 3 UAV	Q4 2015
Semtech SX1276	1 LoRa module 2 Prime Mark II 3 Raspberry Edition 4 Dongle 5 Academy	Q4 2017
Texas Instruments CC1310	UAT module	Q1 2019
Semtech SX1231	Retro	Q3 2019	operates through OGN driver with OGNTP protocol only
Semtech SX1262	1 Prime Mark II 2 Mini 3 Badge 4 Lego	Q1 2020
Texas Instruments CC1352R	Uni Edition	Q2 2020
Maxim Integrated MAX2837 and MAX5864	ES Edition	Q2 2021	Software Defined Radio

GNSS	Model(s)	First appearance
Generic NMEA	Standalone	Q4 2016
U-blox 6/7/8	1 Prime Mark II 2 Retro 3 Uni 4 Lego	Q2 2018
Hangzhou ZhongKe AT6558	1 Prime Mark II 2 Mini 3 Badge	Q2 2019
Sony CXD5603GF	1 Dongle	Q4 2019
MediaTek MT3339	1 Raspberry 2 Uni 3 Academy 4 Lego	Q3 2020
GOKE GK9501	Mini	Q3 2020