Polk Audio XRt112 Manuel D’Utilisation

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Overview of the Set-Up Process
I. Connect the XM Reference Tuner to your home audio equipment.
II. Position the High-Gain Antenna for the best signal.
III. Activate your XM Satellite Radio subscription.
XM TUNER SET-UP
Set up your XM Reference Tuner as follows:
1. Connect your XM Reference Tuner’s audio output to your 
pre-amp/receiver using either the supplied 3-connector 
RCA Analog Stereo Audio/(Composite)Video Cable or a 
TOSLINK Digital Audio Cable connection. You may also 
use a Digital Coaxial RCA-type Cable (not included). 
See Figure 1.
2. Be sure to maintain consistency by matching red-to-red 
and white-to-white when connecting the RCA cable. 
3. Connect the XM High-Gain Home Antenna to the jack 
labeled “ANTENNA” on the rear panel of the XM Reference Tuner.
4. You may wish to connect your XM Reference Tuner to your television via the Yellow 
Connector of the (supplied) 3-connector RCA Analog Stereo Audio/(Composite)Video 
Cable. This will allow you to view the XM Display on your television (if you are using 
Digital Audio, do not connect the Analog Audio output).
5. The Power Cord of the XM Reference Tuner must be plugged into a standard 120V home 
outlet.  You may also plug the Power Cord of the XM Reference Tuner into the switched AC  
Outlets of your pre-amp/receiver, if available. 
After powering up, if the display reads “ANTENNA,” check that the antenna connection is 
secure and completely pushed in. Next, change channels (from 0 to 1, or from 1 to 0 if the 
Tuner is not activated yet). If the “ANTENNA” message remains, power down the Tuner, unplug
the antenna and look for any obvious damage. If no damage is detected, reconnect the antenna, 
turn the unit back on and change channels again. If the message still appears, contact your 
retailer or Polk Audio Customer Service at 1-800-377-7655. 
Using The Remote
1. The Remote Control included with your XM Reference Tuner does not control system 
volume. The pre-amp/receiver to which you have connected your XM Reference Tuner will 
control the system volume. (If the XM Reference Tuner signal is too high or too low, use the   
Line Level Out menu command on Pg. 9 to adjust the audio signal level of the 
XM Reference Tuner.)
2. Install the batteries (included) as shown in Figure 2.
3. If the remote control’s range begins to shorten, replace both batteries with new ones. 
4. Direct sunlight or light from a high-frequency fluorescent lamp may cause the remote sensor 
on the XM Reference Tuner front panel to not function properly. If this happens, move the XM  
Reference Tuner out of this direct light. 
About the RS-232C Connection:
The RS-232C Connection is provided to allow the XM Reference Tuner to be controlled by 
compatible 3rd party control systems. Polk Audio recommends that this connection only be 
used by experienced professional system installers. DO NOT connect the RS-232C Connection 
to a computer. This connection IS NOT compatible with personal computers. 
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Contact Polk Audio Customer Service 1-800-377-7655 (Outside US: 410-358-3600) Monday-Friday, 9:00 AM-6:00 PM Eastern Time, polkcs@polkaudio.com
XM HOME ANTENNA SET UP
Aiming your XM High-Gain Home Antenna
If the XM Reference Tuner display says, “NO SIGNAL,” the antenna needs to be 
repositioned. In addition, even if you are receiving the XM signal, it is recommended 
that you optimize the position of your XM High-Gain Home Antenna as described in 
this section enabling you to receive the strongest possible signal and 
consistent reception. 
Your XM Reference Tuner display has two different signal-strength indicators which 
will help you optimize your antenna’s position. 
I. Basic Signal-Strength Indicator
Your XM Reference Tuner display has a basic signal-strength indicator visible at the top 
of the display screen during normal listening (Figure 3). The signal strength is indicated 
by up to three vertical bars; three bars represent the strongest signal. (Zero bars represent 
a weak signal.) 
II. Antenna Aiming signal-strength indicator
1. A higher-resolution signal-strength indicator screen is available to allow you to optimally 
aim your XM High-Gain Home Antenna. To access and use this screen:
2. Press the MENU button on the face of the XM Reference Tuner and select the “Antenna
Aiming” option. A screen similar to Figure 4 will appear. 
3. Adjust the antenna location until the maximum number of “SATELLITE” bars is filled in. 
Your XM Reference Tuner will receive programming as long as either the satellite or 
terrestrial signal has two bars filled in; selecting a position with the maximum number 
of “SATELLITE” bars displayed will ensure a consistently strong signal. 
4. Press the MENU button once to return to the menu screen. Press the MENU button 
again to return to the normal play screen. 
Positioning The High-Gain Home Antenna
The antenna that comes with your XM Reference Tuner is a High-Gain Antenna that easily
receives the XM signal from the XM Satellites and, depending on where you live, the XM
Terrestrial Repeater System. It is recommended that your antenna be positioned near a 
South-facing window or at least a clear view of the southeastern sky in order to receive the
strongest satellite signal.  
To position your antenna, first connect your XM Reference Tuner to your audio system as 
described earlier. Next, position the antenna until you receive the strongest possible satellite 
signal. If the satellite signal is not available, you can optimize for the terrestrial signal 
(where available). 
FIGURE 1
FIGURE 2
FIGURE 3
FIGURE 4