Irh-35 handheld transmitter, Features, Words of caution and limitations of infrared – TeachLogic Quantum II User Manual
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IRH-35 handheld transmitter
The Handheld Microphone Transmitter (IRH-
35) is most applicable for student use or direct
presentation. It has an “on/off” switch and a
battery level indicator LED; Green=useable charge,
Red=low battery. The transmitter has 10 emitting
diodes: 8 around the bottom of the handle, and 2
toward the top of the handle. The metal housing
provides low handling noise and insures durable
longevity.
features
• Condenser microphone
element
• Power “on/off ” switch
• Battery level indicator—
LED
• Channel “A” or “B” select-
able
• 10 high-power emitting
diodes
• Diodes at top and bottom
of handle for increased
Coverage (2 Top aimed
out, 6 Bottom 360°,
2 Bottom aimed down)
• 360º IR radiation for as-
sured connectivity
• Two “AA”, Duracell, re-
chargeable NiMH batteries
words of caution and limitations of infrared
Be sure that the path of transmission between the emitter and sensor is not obstructed.
The Sapphire pendant transmitter will not function if placed in pocket.
Infrared will not work outdoors in sunlight.
Dark surfaces will not reflect infrared well and can limit distance of transmission.
Rooms larger than 1600 Sq. Ft or have high ceilings can begin to exceed the ultimate
performance of the Quantum II.
If dropouts are experienced in areas, as additional sensor ICS-55 sensor can extend the system
performance.