Gazzalene 171 Posted September 21, 2020 Really been wanting to get one of these BUT have got ten 3 channel AFDHS rx`s I use with a gt3c. Just seen a comment on YT that you can select the protocol from a list on the NB4 (2 years old so no reply to me asking)! From what I have seen the available RX`s Flysky have are AFDHS, ,AFDHS 2A and AFDHS 3. Would like to know if standard AFDHS is present in the options, that's my FS GR3 thanks Share this post Link to post Share on other sites
ChrisRx718 4470 Posted September 22, 2020 I don't believe the NB4 is backwards compatible unfortunately; which is why I ended up ordering a GT5 instead. It still hasn't arrived yet unfortunately. Share this post Link to post Share on other sites
