How do I install an antenna on a C220

The controller’s (e.g. C220’s, C200’s) antenna should be mounted such that it has the best possible line-of-sight to the remote unit (e.g. H212, H106), in order to maximise the operating range.  It is usually best to locate the antenna above metal structures of the machine that may otherwise obstruct the radio signal; best performance is achieved when surrounding metal is at least 20 cm away from the side of the antenna whip.

The mounting surface must be metallic, no more than 2.5 mm (0.1 inch) thick and preferably permit the antenna whip to stand vertically above the metal mounting surface.  In instances where a vertical surface must be used, it is best to attach the antenna to an outside corner where the metal surface turns away from the antenna; a pre-drilled bracket has been provided for this purpose.

Assembly and Adjustment

Turn off power to the controller before performing the following procedure.

The antenna base will be installed into a 19-mm (¾-inch) diameter hole which must be drilled into the metal mounting surface, or the supplied bracket may be used.  After deburring the hole, pass the small end (gold connector) of the cable through the hole from the upper side as shown below:

Manoeuvre the antenna base so that bottom of the base “catches” under the hole, the gold button on top of the antenna base is facing up and the base is centred in the hole:

The O-ring gasket of the locking ring should seal to the mounting surface when threaded onto the base:

Adjust the cable to face in a direction such that it does not become kinked.  The locking ring should be tightened about one-quarter turn after the O-ring makes contact:

The underside of the installed antenna base should look like this:

Only if the mounting surface is less than 1.25 mm (0.05 inch) thick or if using the bracket, install the supplied flat rubber washer as shown below (do NOT install the rubber washer if the mounting surface is thicker than 1.25 mm):

The bottom end of the antenna whip should be slightly proud of the convex side of the bushing under the base-cap of the whip. Use the supplied Allen key to adjust and/or tighten the set screw in the bushing:

Pull the antenna whip so that the bushing seats into the rubber insulator of the base-cap:

Thread the base-cap onto the antenna base, using a rubber washer only if the mounting surface is less than 1.25 mm thick, then tighten another one-eighth to one-quarter of a turn.  Note:  If the antenna whip feels loose to the touch, remove the rubber washer and/or adjust the bushing so that the bottom end of the antenna whip protrudes further from the bushing.
 

Route the cable to the antenna port of the controller and mate the connectors by threading finger-tight, then tighten another one-tenth to one-eighth of a turn.

A properly mated antenna-cable connector looks like this: