Head-tracker gyro mounts to your goggles. HTracker1 From Hobby Wireless

 Head-Tracker Gyros are becoming very popular when used with goggles and a Pan and Tilt servo set up for FPV pilots. The Head-Tracker sends the pilot head movements to the servos that are mounted to the camera giving you the ability to look around from the RC aircraft (also known as HT/HAT).  Most Head-trackers require you to plug them in through the trainer port on your radio and then programming of the radios trainer menu to assign channels to control the aircrafts pan & tilt servos. Futaba 7  channel or higher (FF7/7C, FF9/9C, 12Z, 14MZ), is recommended or any radio that allows trainer port programming but check with the manufacture of the Head-Tracker gyro you plan on using for compatibility. If you don't have a compatible radio then a separate radio can be used to operate Head-Tracker and Pan n Tilt servos if you don't mine digging into it. This requires some basic knowledge of RC radio equipment and you will be transmitting on 2 frequency at the same time so this can be a problem if you fly at a club field where flyers have to wait for available frequency.  

 As of now HT's have some small issues that cause the servos not to return to center when the pilots head re-centers straight so a push button (included with HT) needs to be placed in reach of your fingers that when you push the button the cameras servos re-center.  The main reason this this happens is the inability for the Head Tracker to calculate diagonal head movements.   This button is also commonly used for programming the Head Tracker gyro.

 Programming a HT's is mainly selecting what 2 channels you want the HT to be assigned too like for example Tilt maybe assigned to Radio TX channel 7 and Pan assigned to channel 8, usually any Channel from 1 to 8 can be selected.

 

 

Check out John (JMSTECH) as he demonstrates how a head-Tracker works with a Pan & Tilt Mounted Camera. VIDEO: HeadTrackerDemo

Here's a site with do-it-yourself head-tracker: http://antonio.poveda.lerma.googlepages.com/home

               Head-Tracker mounted on Goggles   Photo: vrflyer

 Pan n Tilt Photo helitron

     TrackR1 Head Tracker from www.aeropix.ch

        (with Futaba square trainer port connector)

 

FatSharks Complete radio for head-tracker @ gowiththeshark.com

Inside the back of my radio after plug and button have been installed.

A easy mod for the head trackers centering button is to add a button to the body of your radio. The reason I did this is so I can remove the HT from my radio trainer port without having to re-tape/Velcro the stock re-centering button. I could probably just add a plug and keep the button double-sided taped to the radio but I want a cleaner look with no wires hanging when not in use.

 I picked up a momentary button, 1/8 head phone plug and a 1/8 female plug at Radio Shack for this mod. I removed the back of my Futaba 9C  and carefully located a spot I could have the button and female plug installed checking all joystick movement for clearance. Once I was happy with the location I drilled the proper size hole and installed the button and plug.