Rolls HR70 Quick Start Operation Manual

Multi path reflections
FM waves, like light waves, travel in a straight direction unless reflected
off 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 reflected off 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 reflection". To reduce this problem, select
an antenna with good directivity and place it in the best location with
strong reception.
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Rolls Corporation
Salt Lake City, UT
2/20
HR70
HR70
1 - TALK OVER OFF
+
2 - PHANTOM POWER
ANTENNA
-
Digital FM Transmitter
15 VDC
MIC DUCK
LEVEL SENSITIVITY LEVEL
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RELEASE
TIME
slow
fast
MIC
LINE
SPECIFICATIONS
Frequency Response: 20 Hz - 12.5 kHz
Input Impedance: 100KΩ Unbalanced, 600Ω Balanced
Indicators: Power LED and Clip LED
Input/Output jacks: XLR balanced INPUT
RCA unbalanced input and output
Power: Rolls PS27s
12 - 15 VDC 500mA
5 x 1.2 mm DC Jack - Center Negative
Antenna Jack: BNC connector
Antenna Impedance: 75Ω
Current: 150 mA
Tuning Range: 87.5 - 108 MHz
Dimensions: 6.75"w x 4.25"d x 1.6"h
Weight: 1.5 lbs
QUICK START OPERATION GUIDE
1 2
AUX IN ON MIC
OUTPUT LINE IN
HR70
CLIP
FREQUENCY
103.5
DN UP
MUTE
MHz
FM TRANSMITER
PWR