User's Manual

COMMUNICATION CERTIFICATION LABORATORY TEST REPORT: 73-6848
FCC ID: NQE-900SSHOPPER
Page 78 of 109
Exhibit 8
WWC 900 SS Hopper Data Radio
General Information
The Data Radio is a frequency-hopping data transceiver operating in the 902-928 MHz
ISM band. The transceiver is designed to operate under Part 15 of the FCC rules and
regulations and is designed as an OEM module for professional integration into other
products or field devices. When installed using a World Wireless Communications
approved antenna, the user need only make sure the radio’s FCC label or a copy of the
FCC label is clearly visible on the outside of the integrated product.
Caution: If this radio is integrated into another product, the user is responsible for
complying with the external labeling requirements as directed in the FCC Rules and
Regulations part 15.19. The user may only use antennas that have been tested and
approved with this radio without obtaining their own FCC certification.
The unit operates on 50 discrete frequencies within the ISM band, each frequency
about 400kHz apart. Using a high-speed phase-locked loop synthesizer, the receiver is
able to quickly acquire synchronization with the transmitter and receive the transmitted
data.
The Data Radio is connected to a host device using a 20-pin dual in-line header. This
connection provides the radio with the required DC power source and allows the Data
Radio to be programmed, configured and provides all I/O lines for a fully compliant RS-
232 port.
Data is transported across the RF channel in a transparent, promiscuous mode. In
other words, data sent into the serial port on one radio will be presented out of the
serial port on all other radios that are within range and have the same group code.
Data verification and retries are the responsibility of the host (DTE) device.