ONKYO TX-NR901 Manual Do Utilizador
25
Connecting the TX-NR901
—Continued
Connecting an Outdoor FM Antenna
If you cannot achieve good reception with the supplied
indoor FM antenna, try a commercially available out-
door FM antenna instead.
indoor FM antenna, try a commercially available out-
door FM antenna instead.
Notes:
• Outdoor FM antennas work best outside, but usable
results can sometimes be obtained when installed in an
attic or loft.
attic or loft.
• For best results, install the outdoor FM antenna well
away for tall buildings, preferably with a clear line of
sight to your local FM transmitter.
sight to your local FM transmitter.
• Outdoor antenna should be located away from possi-
ble noise sources, such as neon signs, busy roads, etc.
• For safety reasons, outdoor antenna should be situated
well away from power lines and other high-voltage
equipment.
equipment.
• Outdoor antenna must be grounded in accordance
with local regulations to prevent electrical shock haz-
ards.
ards.
■
Using the 75/300-ohm Antenna Adapter
The 75/300-ohm Antenna Adapter is not supplied with
American and European models.
The 75/300-ohm antenna adapter can be used to connect
an FM antenna using either 75-ohm coaxial cable or
300-ohm twin-core flat cable.
American and European models.
The 75/300-ohm antenna adapter can be used to connect
an FM antenna using either 75-ohm coaxial cable or
300-ohm twin-core flat cable.
■
Connecting 300-ohm Flat Cable
■
Connecting 75-ohm Coaxial Cable
■
Using a TV/FM Antenna Splitter
It’s best not to use the same antenna for both FM and TV
reception, as this can cause interference problems. If cir-
cumstances demand it, use a TV/FM antenna splitter, as
shown.
reception, as this can cause interference problems. If cir-
cumstances demand it, use a TV/FM antenna splitter, as
shown.
Connecting an Outdoor AM Antenna
If good reception cannot be achieved using the supplied
AM loop antenna, an outdoor AM antenna can be used in
addition to the loop antenna, as shown.
AM loop antenna, an outdoor AM antenna can be used in
addition to the loop antenna, as shown.
Outdoor AM antennas work best when installed outside
horizontally, but good results can sometimes be obtained
indoors by mounting horizontally above a window. Note
that the AM loop antenna should be left connected.
Outdoor antenna must be grounded in accordance with
local regulations to prevent electrical shock hazards.
horizontally, but good results can sometimes be obtained
indoors by mounting horizontally above a window. Note
that the AM loop antenna should be left connected.
Outdoor antenna must be grounded in accordance with
local regulations to prevent electrical shock hazards.
1
Using a screwdriver, loosen the
two screws on the adapter, wrap
the bare wires around the
screws, and then retighten them,
as shown.
two screws on the adapter, wrap
the bare wires around the
screws, and then retighten them,
as shown.
2
Plug the adapter into the 75
Ω
socket.
1
Strip and prepare the
75 ohm coaxial cable,
as shown.
75 ohm coaxial cable,
as shown.
2
Using your fingernails or a small screw-
driver, lever the adapter’s tabs outward
and remove the cover, as shown.
driver, lever the adapter’s tabs outward
and remove the cover, as shown.
FM
75
6
mm
3
mm
6
mm
1/4" 1/8" 1/4"
15 mm
5/8"
3
Move the small wire inside the adapter
from position A to position B, as shown.
from position A to position B, as shown.
4
Insert the central conductor (
1
), as
shown, and use a small pair of pliers to
clamp the shielding and outer insulation
sections of the cable (
clamp the shielding and outer insulation
sections of the cable (
2
), as shown.
Make sure the shielding is not touching the central
conductor.
conductor.
5
Refit the adapter’s cover, and then plug
the adapter into the 75
the adapter into the 75
Ω
socket.
Position A
Wire
Position B
2
1
To AV receiver
To TV (or VCR)
TV/FM antenna splitter
AM
Outdoor antenna (aerial)
AM loop antenna
Insulated antenna cable
TX-NR901_En.book Page 25 Wednesday, October 1, 2003 9:44 AM