I’d like to get an Airtronics RDS8000. I know that the 8 channel 92824 RX is sold with the RDS8000, and has “Z” style connectors – I assume that these are the Futaba type, right? Does anyone know if the 6 channel Airtronics 92224 RX (full range) is compatible with Futaba connectors, and are there any 4ch full range RX’s that are compatible with both the RDS8000 and Futaba?

Airtronics and Futaba connectors are alike as far as the polarity and signal wires are concerned, though there is a slight physical difference. You have to
shave off the lip on the Futaba servo connector before it will fit into the opening in the Airtronics receiver. Be sure the color wires match, though nothing
happens if you reverse the plug, only that the servo will not operate. Luck!
By the way, the RDS8000 manual is one of he best around.

Like EloyM said, there is a tab on the Futaba servo connectors. But that is easy to snip off and then you can use the Futaba servos with any major brand of radio.

If what you mean by compatible receivers is that you can use different brands of receivers with another radio, then the answer is "no". All of the 2.4 receivers on the market are propriatary and you must use the brand of receiver from that manufacturer. But if you mean by using servos on another brand, then the answer is "yes" it will work. Airtronics is currently making a 5 channel receiver that is very affordable at $49. You can use any brand of servo in that receiver.

Ken