OEUBDA1900-2In-Home Cellular Signal Enhancer

October 6, 2004 Elite Electronic Engineering, Inc. TCB Certification Services 1516 Centre Circle Downers Grove IL 60515 Attn: Dan Crowder Certification Department Supervisor Gentlemen, RES Ltd., Inc. is submitting application for equipment authorization for an in-home repeater, FCC ID: OEUBDA1900-2, under rules part 15 and 24. This equipment is used to improve cellular phone coverage in one’s residence. It operates in the PCS band and covers GSM, TDMA and CDMA. Frequency Modulation Power Emission Output Designator (dBm) (W) Uplink 1850-1910 MHz GSM 20 0.1 GXW TDMA 20 0.1 DXW CDMA 20 0.1 F9W Downlink 1930-1990 MHz GSM 20 0.1 GXW TDMA 20 0.1 DXW CDMA 20 0.1 F9W We request that the following exhibits to be held confidential and withheld from public inspection. They are RES Ltd.’s confidential proprietary information and are not normally released to the public. 1. Block Diagrams 2. Operational Description 3. Part List 4. Schematics If you have any questions regarding this filing, please contact me at: Hiep Lam RF Design Engineer RES Ltd. 2410 Vantage Dr. Elgin, IL 60123 Phone: (847) 844-4636 Fax: (847) 844-4650 Email: [email protected]

In-Home Cellular Signal Enhancer and Re-Rad Antenna, Front In-Home Cellular Signal Enhancer and Re-Rad Antenna Back

1.75” X 0.5”

In-Home Cellular Signal Enhancer, Internal Top Side Circuit Board Shields Removed In-Home Cellular Signal Enhancer, Internal Bottom Side Circuit Board In-Home Cellular Signal Enhancer, Internal

Tune-Up Procedure Model # BDA1900-2 FCC ID # OEUBDA1900-2 The In-home Cellular Signal Enhancer, model # BDA1900-2, FCC ID # OEUBDA1900- 2 requires no manual tuning. All settings are factory aligned and the finished product is controlled by a microcontroller.

SAR Test Report 1900MHz In-Home Cellular Signal Enhancer Model # BDA1900-2 FCC ID # OEUBDA1900-2 Prepared by: Olaf Nurmepuu, Electrical Engineer, RES Ltd. RES Ltd. has reviewed the 1900MHz In-home Cellular Signal Enhancer System, FCC ID # OEUBDA1900-2, for the need to conduct SAR evaluation. Due to the design and installation of this product, it qualifies for the exclusion called out in 2.1091. The system consists of two directional antennas, a donor antenna and a re-rad antenna with a bi- directional amplifier between them. The donor antenna is mounted to a window, and it’s radiation pattern is directed towards the outside of the house. Due to the suction cups being used to mount the antenna, it is impossible to mount it backwards, so there is little concern regarding the donor antenna proposing any danger regarding exposure levels. The re-rad antenna can be set on the floor, or placed on top of a desk, shelf, or window sill, and its radiation pattern is directed towards the inside of the house. Transmitting devices that can be easily re-located such as the 1900MHz In-Home Repeater are considered mobile devices if they meet the 20cm separation requirement. The system antennas should be more than 20cm from the end user, as referenced in the Users / Installation manual. The 1900MHz In-Home Repeater has a maximum transmitted conducted power of 0.1W (+20dBm) in both directions. The antennas used in both the donor and re-rad units have a maximum gain of 9dBi. The cable loss to the donor antenna is 4dB, resulting in a total ERP of 0.32W (+25dBm). The cable loss to the re-rad is 0.3dB, resulting in a total ERP of 0.75W (+28.7dBm).