Like quite a few others here, I'm awaiting delivery of my ALTA, and am contemplating how I'm going to configure the radio systems. I thought I'd start this thread for everybody to discuss how they plan on configuring their machines, as Freefly do not ship the ALTA with either control receiver or FPV transmitter. As I understand it from conversations with the folks at Freefly, and now from the official spec sheet which they've just released (click here to download the PDF) you have many different options for radios on the ALTA. For my FPV system, I plan on using the same 400mW 1.3 gHz video transmitter I use on most of my copters, including my former heavy lifter that the ALTA is replacing. I use this on my MōVI, too. I am able to do so by using not only different channels (obviously) but also using a RHCP on one and a LHCP on the other. I've found at the distances I normally operate my big ship, I get rock-solid video performance. It also gives me redundancy in the event that one or the other of the systems is having interference issues. For my control radio, I plan on eschewing the typical Futaba/Spektrum/Graupner 2.4gHz route and instead using the 433mhz UHF DragonLink system. I've been using it on a long-range quadcopter I built and I've been able to fly to the limit of my battery (5 km radius) with rock solid radio reception. I do not plan on flying anywhere near that far (nor could I with the ALTA) but there are other significant advantages to the DragonLink. For one, UHF is virtually impervious to many of the pitfalls that can easily kill a 2.4gHz signal. UHF can penetrate trees, houses, and even terrain in certain situations (as can 1.3gHz vTX). This means you don't have to be quite a careful about flight planning as you do with 2.4 systems. You also don't have to be concerned with Wi-fi or cordless telephones or other electronics interfering with your signals. And like 2.4gHz, it's a digital signal that can co-exist with other people flying on the same frequency. Because it's a standalone radio module, DragonLink allows you to use the transmitter of your choice, to a certain degree. I am going to use the FrSky Taranis, a very nice openTX-based transmitter with many programmable switches and pots. It's a fraction of the cost of a comparable Futaba or other radio, and is available without the transmitter module at all. The DragonLink simply plugs into the back of the Taranis and gets both power and signal from it. The only real thing I lose with this configuration is any sort of telemetry through the radio. However, I intend on using Synapse's built-in OSD for delivering telemetry information in addition to the view from above. In my experience, I'm less comfortable with the telemetry appearing on the transmitter screen than I am glancing at my video screen. And the reality is that the telemetry link is yet another radio system (logically separate TX/RX) that in my experience can be a weak link. Lastly, it bears mentioning that the DragonLink can output standard PPM of up to 12 channels, so it should work well with the Synapse flight control in the ALTA. But I won't know for sure until I get it. I don't know if Freefly have tested DragonLink with ALTA. If for some reason it has a fundamental incompatibility, I can revert to another solution. Here's a sample video of an epic flight I recently made with my long-range quadcopter using the same control and FPV system I intend to use on the ALTA. As you can see, control was flawless and video (look at the ground recording of the FPV link) was also very clear all the way out to 5km and back.