today you are going to take care of the right position of the antenna.
Almost every tank has got one.
So does the HL. But, according to the original position on a real Tiger, it is in the wrong position on the HL.
Here you can see the original position.

That is the position on the HL.

It should be here.

Before we change position, follow the next steps:
1. Remove the Tiger tracks
http://www.rctankwarfare.co.uk/forums/v ... 18&t=11460
2. Open the Tiger
http://www.rctankwarfare.co.uk/forums/v ... 18&t=11461
Unscrew the antenna cable.

Remove antenna socket and fill the old hole.

Drill a new 4mm hole on the new position.

Force the socket into the hole and screw the cable back on.

Normally that´s it........but, I´m sorry, it is not.
Because of the new position, the speaker is in the way, now.
You have to move it to be able to assemble the hull to the chassis.
Unscrew the three speaker screws.

Now you can move the speaker a little bit backwards.
There you can either glue it or prepare new screw holes.

At last you can reassemble the hull to the chassis and mount the tracks.
Greetings
Birger
For a lot more help with your Heng Long Tiger I tank, follow the below link ...
http://www.rctankwarfare.co.uk/forums/v ... 18&t=11459