FrSky made good system what works great straight out of the box, with SBUS and SBUS redundancy. Has good range coverage. No big noise and interference. Worked fine with 1.3G and 5.8G video.
You can find more coupons, deals and discounts in telegram channel: https://t.me/s/RacerLt
Harrier wing in up height winds: [3:06] (preview)
Price is a big factor here, it costs twice less than other similar systems like TBS CrossFire or OpenLrs (some OpenLRS or similar costs even more less, but has bigger Receivers).
The R9 Slim+ even comes with diversity antennas for even more better signal coverage.
FrSky long range system, 868MHZ for EU, 900MHZ for non-EU.
FrSky Slim: Has redundancy function, Supports SmartPort Telemetry, Dedicated RSSI Output, Theoretical Range: 10Km++ and more
Power output up to 1w.
Overall great system for good price.
10% discount via app: https://api.racer.lt/7oxt
FrSky R9M module with RX: https://goo.gl/YDxCb9
FrSky R9 Slim: https://api.racer.lt/6yc5
FrSky R9 Slim+: https://api.racer.lt/7mdz
FrSky R9 mini: https://api.racer.lt/7mqk
FrSky R9m module: https://api.racer.lt/6yc4
FrSky R9M Lite: https://api.racer.lt/7me9
Harrier S1100 Wing: https://api.racer.lt/6yj5
S800: https://api.racer.lt/6ya4
S670: https://api.racer.lt/6yj2
Powerful motors for quads and wings EMAX RSII: https://api.racer.lt/6z97
Music by: Andrew Applepie - Its Melting
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