Great Planes Top Speed - GPMB1050 - Manual (Page 11)

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1. Temporarily tape the Radio Box Cover to the radio box.
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2. Measure and record the position of the switch. Transfer
this measurement onto the upper tunnel and drill a 3/16"
[4.8mm] hole at the location. Use a hobby knife to “fine tune”
the location of the hole if necessary.
❏ 3. Place the tunnel in position. Using a pen or leftover from
the steering pushrod, mark the location of the antenna exit
through the hole in the upper tunnel onto the radio box cover.
❏
4. Remove the radio box cover and use a 5/32" [4mm] drill
bit to drill a hole for the antenna in the radio box cover.
❏
5. Sand the end of the Antenna Tube to a slight taper
(this will permit you to thread the hex nut on).
❏
6. Grasp the antenna tube firmly and thread one of the
6-32 Hex Nuts 1/4" [6mm] onto the tube with a pliers. HINT:
If you find it difficult to turn the nut, try holding the tube with
another pliers, locking the tube in a vise (use light pressure
to avoid crushing the tube), or having someone else hold
the antenna tube with two hands while you turn the nut.
❏
7. Insert the antenna tube into the hole drilled in the radio
box cover and secure it with another 6-32 hex nut.
❏
8. Route the receiver antenna through the antenna tube
so approximately 2" of the antenna protrudes out the top of
the tube. Do not cut off any excess antenna length. Wrap
the excess together and place it inside the radio box.
Radio Box Cover Installation
11