Spektrum DX7 Booster Mods For Long Range
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May 19, 2010
, 09:36 PM
First to go over 106K feet
United States, TX, Waxahachie
Joined Mar 2008
Here are the pictures:
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Before the mod.
Underside of the JB Welded connector.
Keep JB Weld away from the perimeter on the underside of the case.
View showing the 1/8 (3.17mm) plywood circle glued to the TOP of the case.
Where I picked off the switched battery voltage.
Wires routed along the existing wire bundle.
Then out the back case through the battery connector hole.
The transmitter board reassembled and the U.FL connector reattached to the transmitter.
The switched battery wires as they come through the battery compartment. When not using the booster, these wires can be tucked back into the battery compartment.
The upper LH corner is chamfered for the wires.
The 2 clamps, screws, and washers. Note position of the UBEC. Near the bottom of the booster. If mounted too high, it will press the binding button on the back of the transmitter.
Front view showing the coax routing.
Back view showing the general layout of things. I tried to keep everything in the middle so nothing interferes with my hands.
The booster can be rotated up to allow access to the binding button.
Side view of the booster rotated up. When flying It is rotated down till the lower SMA fitting rests on the back of the transmitter case.
I'm using a SunSky Fox 800mw 1280 MHz video system with a homemade invetered vee antenna with the antenna elements cut to 2 3/16 (55.56mm).
Last edited by Crist Rigotti; Mar 03, 2011 at