LTE-FDD, Rel9, Category 4, Band 13 Standard GPS/AGPS supported IMG02 LTE RF Module OEM User Manual Features LTE:
GPS:
Antenna Connector LTE Main/Diversity, GPS UICC Support Form Factor Dimensions Required connectors Here is the description about the connectors used to integrate the modem into the host device. USIM, ISIM M.2 (NGFF) 42x32x2.7 mm U.FL #1 U.FL #2 U.FL #1 : LTE Main Port U.FL #2 : LTE Diversity Port M.2 (NGFF) Connector RF Bands The LTE frequency bands the modem supports LTE Band 13 Uplink 777 MHz ~ 787 MHz Downlink 746 MHz ~ 756 MHz Shielding The module is fully shielded to protect against EMI and must not be removed. Determining the antenna's location When deciding where to put the antennas:
Antenna location may affect RF performance. Although the module is shielded to prevent interference in most applications, the placement of the antenna is still very importantif the host device is insufficiently shielded, high levels of broadband or spurious noise can degrade the module's performance. Connecting cables between the module and the antenna must have 50 ohm impedance. If the impedance of the module is mismatched, RF performance is reduced significantly. Antenna cables should be routed, if possible, away from noise sources (switching power supplies, LCD assemblies, etc.). If the cables are near the noise sources, the noise may be coupled into the RF cable and into the antenna. Ground connection When connecting the module to system ground:
Prevent noise leakage by establishing a very good ground connection to the module through the host connector. Connect to system ground using the two mounting holes at the top of the module. Minimize ground noise leakage into the RF. Depending on the host board design, noise could potentially be coupled to the module from the host board. This is mainly an issue for host designs that have signals traveling along the length of the module, or circuitry operating at both ends of the module interconnects. Interference from other wireless devices Wireless devices operating inside the host device can cause interference that affects the module. To determine the most suitable locations for antennas on your host device, evaluate each wireless device's radio system, considering the following:
Any harmonics, sub-harmonics, or cross-products of signals generated by wireless devices that fall in the module's Rx range may cause spurious response, resulting in decreased Rx performance. The Tx power and corresponding broadband noise of other wireless devices may overload or increase the noise floor of the module's receiver, resulting in Rx desense. The severity of this interference depends on the closeness of the other antennas to the module's antenna. To determine suitable locations for each wireless device's antenna, thoroughly evaluate your host device's design. Host-generated RF interference All electronic computing devices generate RF interference that can negatively affect the receive sensitivity of the module.?
Proximity of host electronics to the antenna in wireless devices can contribute to decreased Rx performance. Components that are most likely to cause this include:
Microprocessor and memory Display panel and display drivers Switching-mode power supplies Device-generated RF interference The module can cause interference with other devices. Wireless devices such as AirPrime embedded modules transmit in bursts (pulse transients) for set durations (RF burst frequencies). Hearing aids and speakers convert these burst frequencies into audible frequencies, resulting in audible noise. Methods to mitigate decreased Rx performance It is important to investigate sources of localized interference early in the design cycle. To reduce the effect of device-generated RF on Rx performance:
Put the antenna as far as possible from sources of interference. The drawback is that the module may be less convenient to use. Shield the host device. The module itself is well shielded to avoid external interference. However, the antenna cannot be shielded for obvious reasons. In most instances, it is necessary to employ shielding on the components of the host device (such as the main processor and parallel bus) that have the highest RF emissions. Filter out unwanted high-order harmonic energy by using discrete filtering on low frequency lines. Form shielding layers around high-speed clock traces by using multi-layer PCBs. Route antenna cables away from noise sources. Notice Due to the nature of wireless communications, transmission and reception of data can never be guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost. Although significant delays or losses of data are rare when wireless devices such as the WNC modem are used in a normal manner with a well-constructed network, the WNC modem should not be used in situations where failure to transmit or receive data could result in damage of any kind to the user or any other party, including but not limited to personal injury, death, or loss of property. WNC accepts no responsibility for damages of any kind resulting from delays or errors in data transmitted or received using the WNC modem, or for failure of the WNC modem to transmit or receive such data. Safety and Hazards Do not operate the WNC modem in areas where blasting is in progress, where explosive atmospheres may be present, near medical equipment, near life support equipment, or any equipment which may be susceptible to any form of radio interference. In such areas, the WNC modem MUST BE POWERED OFF. The WNC modem can transmit signals that could interfere with this equipment. Do not operate the WNC modem in any aircraft, whether the aircraft is on the ground or in flight. In aircraft, the WNC modem MUST BE POWERED OFF. When operating, the WNC modem can transmit signals that could interfere with various onboard systems. Note: Some airlines may permit the use of cellular phones while the aircraft is on the ground and the door is open. WNC modems may be used at this time. The driver or operator of any vehicle should not operate the WNC modem while in control of a vehicle. Doing so will detract from the driver or operator's control and operation of that vehicle. In some states and provinces, operating such communications devices while in control of a vehicle is an offence. Manual Information for End Users The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the users manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. Federal Communication Commission Interference Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:
- Reorient or relocate the receiving antenna.
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- Connect the equipment into an outlet on a circuit different from that to which the Increase the separation between the equipment and receiver. receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator & your body. End Product Labeling When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily re-moved. If not, a second label must be placed on the outside of the final device that contains the following text: Contains FCC ID: NKR-IMG02 The grantee's FCC ID can be used only when all FCC compliance requirements are met. This device is intended only for OEM integrators under the following conditions:
(1) The antenna must be installed such that 20 cm is maintained between the antenna and users,
(2) The transmitter module may not be co-located with any other transmitter or antenna.
(3) (3) To comply with FCC regulations limiting both maximum RF output power and human exposure to RF radiation, the maximum antenna gain including cable loss in a mobile exposure condition must not exceed:
Standalone Condition:
10.0 dBi in 700 MHz Band 6.0 dBi in 1700 MHz Band Assuming collocated with a WLAN/WiMax transmitter with maximum 34 dBm average EIRP power 6.5 dBi in 700 MHz Band 6.0 dBi in 1700 MHz Band Remark: This assumption is not valid if the output power of the collocated WLAN/WiMax transmitter is higher than 34 dBm. In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. To ensure compliance with all non-transmitter functions, the host manufacturer is responsible for evaluating host system for Part 15 subpart B requirement.