Listen Technologies 863.050, User Manual

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16
Design Guide
Key Concepts in Designing a Stationary FM System
Example #2
• In general, space the channels as far as possible from each other. For example, if four channels are needed
from transmitting signals, using channels 1, 4, 8, and 12 would be recommended (please see the channel/fre-
quency chart on page 70 for the list of frequencies).
• Space the antennas at least one wave length from each other. A wave length at 863-864 MHz is 33 cm (13 in.).
• In these applications, it would be benefi cial to use the LR-500-863 Portable Programmable Display FM Receiver
(863 MHz) to “lock out” any unwanted channels. The receiver would only see the frequencies currently being
used within the room.
• DX and Local mode can be used for the receiver to SEEK and fi nd only the strongest signals.
Meeting participants need to select any one of, say, four language interpretations of the meeting.
English
Chinese
French
Spanish