Card Edition MkII

Card Edition Mark II is a direct successor of SoftRF Card Edition .

It is supposed to require minimal skills from a builder to begin with and gives an opportunity to evaluate if the SoftRF technology is appropriate for your needs.

Card Edition Mark II is based upon a partner's hardware - Seeed SenseCAP MeshTracker X1 product, which is available for direct purchase from manufacturer at more or less reasonable price.

Seed® MeshTracker X1 uses he most recent and advanced Semtech LR2021 multi-band radio on the market

• sub-1 GHz band
• 2.1 GHz S-band
• 2.4 GHz ISM band
• OOK modem @ 2 MBPS - ADS-B ES @ 1090 MHz
• FSK modem @ 1041 KBPS - ADS-B UAT @ 978 MHz ( needs for Semtech to fix issue https://github.com/Lora-net/usp/issues/4 )

Compatibility ¹

Type	Protocol	FLARM	OGN tracker	PilotAware	Skytraxx	SoftRF
Radio	FLARM AIR V7
	OGNTP
	P3I
	FANET+
	1090 ES ADS-B			2		2
	SRD 860 ADS-L
Data	FLARM NMEA
	Garmin GDL90
	Dump1090

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 - Reception of DF17 traffic 'downlink' frames only.

ADS-B Out remark

No doubts that an amateur-built non-certified low-cost ADS-B transponder is possible.
It was shown to public by our own "proof-of-concept" study for :

• 1090 ES ("ADSB-Out" GitHub project) in 2017, and
• 978 UAT ("UAT-test-signal" GitHub project) in 2018 .

However, as a certified and instrument rated pilot with 20+ years of experience, in no way I will give a tool for every looser in the world, all he/she can afford is to spend 50 USD for the Seed® MeshTracker X1, to abuse the ADS-B technology and compromise my own flight safety and flight safety of every other air law abiding pilot.

SoftRF firmware does intentionally exclude every possibilities to transmit anything on 1090 MHz radio frequency.
Any attempt to contribute the transmit feature into SoftRF from aside will be blocked at very early stage.

Additional information on MeshTracker X1

1. Seeed Studio MeshTracker X1 Wiki