SoftRF

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

Features

Wearable
- Badge Edition
- Bracelet Edition
Plug-and-Play
- Dongle Edition
Portable
- Prime Mark III
- Prime Mark II
Classic 2.25 inch instrument
- Standalone Edition
Wireless 2.7 inch E-Ink display
- SkyView Pico
- SkyView EZ
Certified (CE/FCC)
can receive ADS-B air traffic
- 978 UAT
  - Uni Edition
- 1090 ES
  - ES Edition
- 1090 ES and/or 978 UAT
  - Raspberry Edition
can operate multiple protocols at the same time
- Octave Concept
Weatherproof
- Lego Edition - IP67
UAV add-on
- UAV Edition
Raspberry Pi friendly
- Raspberry Edition
- SkyView Pi
for education purpose
- Academy Edition
made in EU
- Balkan Edition

Compatibility ¹

Type	Protocol	PilotAware	Skytraxx	SoftRF
Radio	FLARM AIR V6		²
	OGNTP			³
	P3I			³
	978 UAT ADS-B			⁴
	1090 ES ADS-B	⁵		⁵
	FANET+			³
Data	FLARM NMEA
	Garmin GDL90
	MAVLINK
	Dump1090 ⁶

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 III , Prime Mark II , Dongle , Mini , Badge , Bracelet , Academy , Octave , Lego and Balkan 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"

Models

By Processing Unit

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	Espressif ESP32	Q1 2018	1 today's best platform ; 2 holds FCC mark
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.
UAT module	Texas Instruments CC1310	Q1 2019	Unique RF radio specs are useful for UAT978 ADS-B reception [ 1 , 2 , 3 ]
1 Retro 2 Dongle 3 Bracelet	STMicroelectronics STM32F103 and STM32L073	Q3 2019
Uni	Texas Instruments CC13x2R	Q2 2020	1 Unique RF radio specs are useful for UAT978 ADS-B reception ; 2 holds FCC/CE mark
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	holds FCC/CE mark
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
1 Lego 2 SkyView Pico	Raspberry Pi Foundation RP2040	Q1 2022	holds FCC/CE mark
Balkan	STMicroelectronics STM32WLE5	Q3 2022	holds CE mark
WebTop USB	Espressif ESP32-S2	Q4 2022
Standalone upgrade	Espressif ESP32-C3	Q1 2023	RISC-V
1 Prime Mark III 2 SkyView Pico	Espressif ESP32-S3	Q1 2023

By sub-1 GHz radio

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 5 Balkan 6 Prime Mark III	Q1 2020
Texas Instruments CC13x2R	Uni Edition	Q2 2020
Maxim Integrated MAX2837 and MAX5864	ES Edition	Q2 2021	Software Defined Radio

By GNSS chip

GNSS	Model(s)	First appearance
Generic NMEA	Standalone	Q4 2016
U-blox 6/7/8/9/10	1 Prime Mark II 2 Retro 3 Uni 4 Lego 5 Balkan 6 Prime Mark III	Q2 2018
Hangzhou ZhongKe AT6558	1 Prime Mark II 2 Mini 3 Badge 4 Prime Mark III	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