User's Manual

HRS84
FM Digital Tuner With XLR Ouputs
Rolls Corporation
Salt Lake City, UT
5/16
PROGRAMMING PRESETS
Hold the MEMORY SEARCH button down for 2 seconds. The HRS84 will
then cycle through the entire FM band as set up MEMORY locations for
stations that are available (station must be strong enough for HRS84 to
recognize). After the MEMORY SEARCH is complete you can press the
MEMORY UP or DN buttons to access the preset channels.
Tuning Range: 87.5 - 108 MHz
30 dB quieting sensitivity: 28 dB
Image Rejection 105.9 MHz: 20 - 26 dB
3dB Limiting Sensitivity: 28 - 35 dB
THD 1 mV Input: 0.5 - 2 %
Auto Tuning Sensitivity 97.9 MHz: 25 - 30 dB
Current: 100 mA
Supply Voltage: 12-15 VDC
Dimensions: 6.75"w x 3"d x 1.6"h
Weight: 1.1 lbs
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Multi path reections
FM waves, like light waves, travel in a straight direction unless reected
o objects in their path. Because of this, two sets of waves reach your
antenna from the FM station; those that have traveled directly to the
antenna, and those that have been reected o buildings or mountains.
When the antenna receives both kinds of signals, the two interfere with
each other and result in distorted sound and poor separation. This phe-
nomenon is called "multi path reection". To reduce this problem, select
an antenna with good directivity and place it in the best location with
strong reception.
QUICK START OPERATION GUIDE
OUTPUTS
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HRS84
FM TUNER
+
-
15 VDC
FM ANT
75
HEADPHONE
OUTPUT
MEMORY
MO / ST
MEMORY
DN
UP
HRS84
MUTE/
+
-
LEVEL
LINE
INPUT
PWR
SEARCH
MADE IN USA
103.5MHz
SPECIAL NOTE ABOUT STEREO RECEPTION
When changing presets or adjusting station tuning you may experience
a loss of stereo separation. By cycling the power (unplugging the units
power and plugging it back in). The full stereo separation will be re-
stored. If you experience poor stereo sound form a selected channel this
will remedy the situation.