Transmitter reccomendations

I have both MX-20 and 8FG Super.
One of the advantages of the MX-20 is the telemetry that comes with the package. You can have it speak the battery input voltage of the C8's flight battery every few seconds so you don't need to look down.
On balance, for your application, I'd go with the MX-20.

EDIT: You might want to download the manuals for both units and get some idea of the additional flexibility that the MX-20 provides in terms of mapping switches/sticks/rotary control to channels and the details of the telemetry.

Andy.

 

Tim, I have the MX-20 since I am switching from the MK stack to HF. Unfortunately the HoverFly boards today do not have telemetry like the MikroKopter boards. There appears to be a very close synergy between MK and Graupner. I remember seeing something on another forum that MK did approach some of the other tx/rx folks about working with them but got a limited response. Each of the others have interfacing modules and I am looking at the ones that Graupner offers but the tight integration you would see with the MK stack just isn't there yet with HF. HF also usually is shipping their RTF machines with Spektrum setups and seems to favor that brand.

So if you plan to stay with Hoverfly you might want to consider the Spektrum/Futaba units. If you think you may want to use an MK stack then I would look at the MX-20. If you get an MX-20 make sure you get the GR-24 12 port receiver so that you have enough ports. While the HFPro plus GPS needs 7 ports by the time you add camera tilt, any type of camera switching you get close to 12 channels real quick. I am at 10 and holding my breath that I don't want something more like a retractable FPV antenna or folding legs.

I don't have experience with the Futaba's but the 8FG looks like a good alternative to the MX20.

Last comment would be on any warranty or broken parts. All Graupner service is in Germany and I have heard of challenges to get bad radio fixed. Spektrum and Futaba are in Champaign, IL.