Spektrum DX7s Radio Settings
You must follow these directions closely to get the radio to work. Do not skip any steps. It is really not difficult or hard to do... only a few real steps
A big thank you to Jerry for loaning me a DX7s to complete this explanation and make this possible.
To start with, the DX7 has 7 radio channels, the Real Flight Interlink Elite is 8 channels, so one channel is not available to control the airplanes designed to be flown with the Interlink Elite controller. This can be a slight limitation if you let it become one. The DX7 does not communicate like the DX8, still I only used one model memory for planes and helicopters.
I chose a model memory and cleared the memory so that I was starting from scratch on a clean model memory. The model type is of type; airplane and gave it the name; RealFlight. You have a 10 character limit for the length of model names. The Spektrum Dx7s' airplane model type will work for both airplanes and helicopters in the simulator. Using the helicopter model type will cause you to loose a second control channel, so don't do it.
After plugging in the Spektrum radio (always with power switch set to off) into the connected interlink, the software will recognize the DX7 radio in the 'Controller', 'Select Controller' menu... I selected the radio selection 'Interlink Elite Transmitter 8 channel' even though it is a 7 channel radio and created the channel mapping as shown below. I noticed that at times the DX7s is recognized as a 9 channel radio, but it does not seem to stay that way.
Here is how I have mapped things to be as close as possible to the Interlink setup.; (see picture below)
1. The DX7's flap/gyro channel#6 is used as the 3 position channel 8 Idle Up switch of the interlink.
2. The DX7's knob (radio channel 7) is the Channel 6 knob on the Interlink and used for flaps or gyro gain.
3. Map the DX7s radio's channel #5 to channel #7 smoke/throttle hold on the Interlink as shown in the screen shot below.
4. We will setup the dual rates in the DX7s ratio. Go to the D/R & Expo menu in the DX7s, set the aileron channel 0 D/R setting to 50%. Do the same thing for the elevator and rudder channels. The 50% number can be adjusted to your flying style. Please take note of the airplane only paragraph below.
5. You can increase the 'Travel' in the 'Servo Setup' (aileron, elevator, rudder) from 100% to 150% if you would like a hotter 3d Helicopter or plane. The number used would be to your preference.
6. I would not use DX7s radio's Expo settings as the aircraft already has expo designed into the setup. In effect, you would be doing expo on top of expo.
7. With the DX7s radio dual rates setup, you need to always do the Real Flight calibration function with full rates selected on the DX7s. If you calibrate on the half rates... full rates will not work.
8. You can combine all the dual rate switches to one switch by assigning all three of them to one switch at the bottom of the 'D/R - Expo' menu. I assigned mine to the Elev DR switch to mimic the Interlink Elite as much as possible.
9. The Spektrum DX7s' mix switch and F mode switches are unused in this setup. You have used all the available channels.
10. The throttle hold function is enabled by enabling the 'Throttle Cut' function in the DX7s radio, and assigning it to 'Mix1'.
11. When flying helicopters with throttle hold enabled, you have two switches that will cut the throttle, the mix/hold switch and the gear/mix switch. Both have to be in the on position for the heli to spin up.
Proceed to run the calibration routine. If the DX7s sticks do not move the same as shown on the animated calibration radio there is something wrong, you need to check or uncheck the reverse boxes on the channel mapping form. The mapping screen shown below is your guide. If you have setup radio dual rates... you need to have full rates selected when you calibrate.
AIRPLANE ONLY MODIFICATION If you would rather use the Real Flight's preprogrammed dual rates as built into each model you will change the mapping of DX7s radio channel 5 to be mapped to channel 5 Dual rates. Doing so will disable the ability to fly many helicopter models as they need channel 7 to control the throttle hold. You do not need to enter D/R - Expo settings in the DX7s if you choose this option. So only make this change if you don't fly helis.
I have not spent a lot of time using the 50% low rate on the transmitter as I just use the rates that the model maker set up (airplane only) or change them in the model editor. I tried to use the Radios default settings for as much as possible for this explanation.
I used the simulator's radio calibration routine and started flying. For the DX7 Radio, that is all there is to it. There are no pass through settings, etc. etc. and the DX7 Radio's dual rates and expo work in the simulator. Keep in mind that you have ONLY one set of DX7 radio rates and expo that will work with each plane, unless you use the airplane only modification.
You do not need to edit the models or do anything else. I just did this with my radio... I have firmware Release 1.00 installed in the radio, but the version number should not make any difference.
In this post, I have given you everything needed to use the DX7 radio with Real Flight6, start to finish... this is all you need to do.
Using the DX7s Radio:
Start the simulator without the DX7s connected. You must press the Interlink Elite Red Reset button at least one time before connecting the DX7s radio. From the menu, select 'Controller', 'Select Controller', and then 'Interlink Elite Transmitter 8 Channel'. I don't know why it appears as an interlink or as 8 channel, but it works.
Since you don't have a Red Reset Button on the DX7 Radio... you can turn on auto reset or press the space bar after a crash. Here is a thread link to turn on auto reset: https://forums.realflight.com/show...ght=auto+reset
I use a value of 2 seconds. You must press the Interlink's red button one time at the start of the session, then autoreset will work.
Connecting The DX7s to the Interlink Elite
Special Notes: I had a couple of different connecting cords around here, I don't know exactly what comes with RF6 so I will tell you what worked. I have a cord that has a rectangular 6 pin plug (Futaba Micro Plug) and the other end is a male mono audio plug. The cord is about 5 feet long. I am pretty sure this came with Real Flight. The 5 foot long cord works.
I also have a short 12" piece with rectangular plug (Futaba Micro Plug) http://www3.towerhobbies.com/cgi-bin...?&I=LXCGR6&P=Vand
the other end is a female audio cord receptacle, to that I plugged in a mono audio cord (bought at Radio Shack) with male plugs on both ends. Also known as a spectrum trainer cord. This cord does not work. See message #22 for more information on this issue. Once I plugged in a working cord (5' long) and radio, the radio showed up in the controller menu and it was selected from the 2 available choices. If you do not see a second choice in the controller selection, you have connection issues.
I also want to note that when a helicopter model type is selected in the DX7s radio, channel 6(pitch) and channel 1 (throttle) both move the same. This prevents using the channel 6 from being used by the simulator. This is by design and nothing can be done about it.