CRESTRON
CNRFHT-15/30 & CNIRHT-15/30
Hand-Held Wireless Transmitters
R E M O T E C O N T R O L S Y S T E M S
6
DOC. 8054C
RF Receiver/Transmitter Tuning
NOTE
The following installation instructions are for the CNRFHT only.
The CNRFHT and CNRFGW are factory tuned and normally do not require tuning. However, in some cases it may be
necessary to tune the CNRFHT transmitter for the CNRFGW to receive signals properly. Complete the following
steps to tune the transmitter and receiver.
RF Receiver
1.
Verify CNRFGW power is on. The green LED marked NET PWR on the receiver illuminates when power is on.
2.
Position the CNRFGW on its side so that the silk-screened face is visible.
3.
To optimize reception extend the CNRFGW antenna vertically to a height of nine to 10 inches.
CAUTION
Do not force the tuning adjustment on the receiver. Over exerting the tuning adjustment may
damage the unit.
4.
Use a nylon (non-conductive) tuning tool and gently turn the tuning adjustment on the face of the CNRFGW
clockwise, until it comes to a stop.
5.
Hold the tuning tool firmly; gently turn the tuning adjustment counterclockwise, two complete turns. This sets
the receiver frequency to 300 MHz, which is the factory standard setting. Frequencies ranging between 270
and 330 MHz can be used by turning the tuning adjustment to different positions.
RF Transmitter
CAUTION
Do not force the tuning adjustment on the transmitter. Over exerting the tuning adjustment
may damage the unit.
1.
Place the tuning tool into the tuning hole located at the pointing end of the CNRFHT; gently turn the tuning
adjustment clockwise until it comes to a stop.
2.
With CNRFHT in hand, stand approximately six feet from the CNRFGW.
3.
Insert the tuning tool into the CNRFHT; gently turn the tuning adjustment counterclockwise, approximately
two full turns.
4.
Aim the CNRFHT at the CNRFGW antenna; depress any button on the transmitter.
5.
While aiming and depressing any button, gently turn the tuning tool in either direction, until the red LED marked
SIGNAL on the CNRFGW illuminates.
