1. RF Signal Wireless Test Lab Weekly Report 1: Objective: Familiarize all group members with RF wireless transmission capabilities and components.

2. RF Signal Wireless Test Lab  We met with Graduate Research Assistants and discussed possible objectives as to how we can enhance certain concepts of the original design.  Researched devices such as Mixers, Filters, Circuit Designs, Oscillators, Amplifliers, and RF Signal Generators for Base Band Frequency  Familiarize ourselves with the actual design and breakdown the frequency receiver/transmitter capabilities for the 900 MHz and 2.4 GHz frequency signals.  Arranged lab access hours with Graduate Research Assistants for further weekly meetings.

3. RF Signal Wireless Test Lab TRANSMITTER Carrier circuits Signal processing Transmission medium (channel) s(t) RECEIVER Carrier circuits Signal processing r(t) Information input m(t) ~ To information sink (user) There are 3 basic elements to every communication system:  Transmitter: converts the message signal produced by the source of information into a form suitable for transmission over the channel.  Channel: physical medium that connects the transmitter and receiver.  Receiver: operates on the received signal so as to reconstruct a recognizable form of the original message signal.

4. RF Signal Wireless Test Lab Frequency Band 0.3-3 GHz 3-30 GHz Designation Ultrahigh Frequency (UHF) Superhigh Frequency (SHF) Propagation Characteristics LOS propagation, cosmic noise LOS propagation; rainfall attenuation above 10 GHz, atmospheric attenuation because of oxygen and water vapor, high water vapor absorption at 22.2 GHz Typical Users VHF television, FM two-way radio, AM aircraft communication, aircraft navigational aids UHF television, cellular telephone, navigational aids, radar, GPS, microwave links, personal communication systems

5. RF Signal Wireless Test Lab Amplifier: enhances current signal to allow stronger frequency Amplifier: enhances current signal to allow stronger frequency Filter (low-pass): bypass unwanted high-frequency signals Filter (low-pass): bypass unwanted high-frequency signals Mixer – combine both base band and oscillated frequency signals into one Mixer – combine both base band and oscillated frequency signals into one Oscillator – generates frequency signal for a determined value Oscillator – generates frequency signal for a determined value Signal Generator – provides base band frequency through an external median Signal Generator – provides base band frequency through an external median

6. RF Signal Wireless Test Lab

7.  Current Design is able to transmit a 900 Mhz and 2.4 MHz frequency  The 5.7 MHz transmission capability has been redesigned due to excessive voltage provided by power generator/splitter  Efficient in providing consistent results for given frequency capabilities

8. RF Signal Wireless Test Lab Take the current design layout for the 900Mhz and 2.4 GHz transmission rate and redesign platform onto a PCB( printed circuit board ) Take the current design layout for the 900Mhz and 2.4 GHz transmission rate and redesign platform onto a PCB( printed circuit board ) Modifying current 5.7 GHz transmitter/receiver design onto new model Modifying current 5.7 GHz transmitter/receiver design onto new model Find a constructive Application process for the given frequencies once implemented onto PCB Find a constructive Application process for the given frequencies once implemented onto PCB

9. RF Signal Wireless Test Lab We will have a finished layout of website where all presentations, progress reports, and research papers will be available for viewing We will have a finished layout of website where all presentations, progress reports, and research papers will be available for viewing Test the 5.7 GHz frequency design to see what improvements can be made Test the 5.7 GHz frequency design to see what improvements can be made Start researching components for proposed PCB model Start researching components for proposed PCB model