Ant Att Button; Fm If Narrow Button; Ant A/B Button; Specifications - Rotel RT-955 Owner's Manual

RT-955 AM/FM Stereo Tuner

ANT ATT Button

Commonly known as a LOC/DISTANCE
switch, the ANT/ATT button reduces the sig-
nal level at the FM antenna input. For the
best reception of stations located some dis-
tance away, this button should be in the
default or OFF position. However, if you are
located in an urban area very close to the
radio transmitter, the incoming signal may
be high enough to overload the FM inputs.
Press this button to reduce the incoming sig-
nal. When activated, a LOC indicator will
appear in the DISPLAY. Press the button again
to toggle back to normal operation. This
switch only effects FM reception.

FM IF NARROW Button

FM reception works by receiving and de-
coding a carrier signal centered at the tuned
frequency. To accommodate broadcast sta-
tions that may be slightly misadjusted off this
carrier frequency, the receiver accepts sig-
nals slightly to either side of the tuned fre-
quency. This provides satisfactory perfor-
mance in most reception areas.
If you are located in an urban area with a
large number of stations with closely spaced
frequencies, you may occasionally notice
interference from adjacent stations. To pro-
vide better performance under these condi-
tions, the RT-955 allows you to reduce the
range of frequencies to either side of the
precise tuned frequency, thus reducing in-
ter-station interference. Press the FM IF
NARROW button to use this feature. A
NARROW indication will appear in the
DISPLAY. Press the button again to toggle back
to normal operation.

ANT A/B Button

As described in the REAR PANEL CONNEC-
TIONS section of this manual, the RT-955
provides two FM antenna connections, la-
beled A and B. This button toggles between
the two antenna inputs. An A or B indica-
tor will appear in the DISPLAY, indicating
which FM antenna input is currently active.

Specifications

FM Tuner

Usable Sensitivity:
12.2 dBf
50dB Quieting Sensitivity:
20.2 dBf (mono)
45.3 dBf (stereo)
Signal to Noise Ratio (at 65 dBf):
75 dBf (mono)
72 dBf (stereo)
Harmonic Distortion (at 65 dBf):
0.2% (mono)
0.3% (stereo)
Frequency Response:
10 Hz-15 kHz, ± 3 dB
Capture Ratio:
2.0 dB
Alternate Channel Selectivity:
47 dB (± 400 kHz)
Spurious Response Ratio:
90 dB
Image Rejection Ratio:
80 dB
IF Rejection Ratio:
80 dB
AM Suppression Ratio:
55 dB
Stereo Separation
(100Hz/1 kHz/10 kHz):
40 dB/45 dB/35 dB
Output level:
1.2V
Antenna Input:
75 ohms unbalanced

AM Tuner

Usable Sensitivity:
300 μV/m
Selectivity:
25 dB
Harmonic Distortion:
0.5%
Image Rejection Ratio:
45 dB
Signal to Noise Ratio:
48 dB
Output level:
165 mV
Antenna Input:
Loop Antenna
14

General

Power Consumption:
10 watts
Power Requirements (AC):
120 volts, 60 Hz (USA version)
230 volts, 50 Hz (European version)
Weight:
3.7 Kg/8.2 lb.
Dimensions (W x H x D):
440 x 72 x 286 mm
17 " x 2 " x 11
3/8 7/8 1/4
All specifications are accurate at the time of
printing.
Rotel reserves the right to make improvements
without notice.
Rotel and the Rotel HiFi logo are registered
trademarks of The Rotel Co, Ltd., Tokyo, Japan.
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