2021-2022 RF DVT Engr, Lab Mgr / Triple Crown contract to Amazon Kuiper / Redmond, WADesign Verification of prototype Digital Beam Forming devices for satellite on Ka/Ku band. Bring-up and characterization of I3C interface. Temperature Testing. Analyzed test results using Excel Pivot Tables and Charts. Wrote Test API scripts in Python for controlling instruments. Planning and execution of power and CAT5 to new benches. Created and maintained instrument calibrations database.

Conductive and near-field OTA testing of Surface products - laptops, tablets, pens, and earbuds. Desense testing for docking station. Pre-certification test for Wi-Fi 802.11a/b/g/n/ac/ax Bluetooth BR/BLE/5.0

Assuring that HF, VHF, UHF, and L-Band amplifier modules, boosters and systems made or serviced by AR Modular RF will meet or exceed customer expectations using manual and automated test methods. Fault find down to the component level using RF bench test equipment such as RF signal generators, vector network, modulation and spectrum analyzers, power meters and digital oscilloscopes. Perform first article product validation tests on new products. Continuously improving test procedures, equipment, and software IEEE-488 GPIB written in LabVIEW for ATE. Maintain current calibrations for lab instruments. J-STD-001 Certified.

- Building and hardware and writing firmware / software for prototype of home medical data collection gateway.- REST/JSON interface to cloud-based back-end.- GPIO, Analog and Digital ports, 1-Wire, I2C and SPI Interfaces. Wi-Fi and Bluetooth BLE.- Linux, Intel Edison - Mini and Arduino, C++, Digital Storage Oscilloscope.

- Project involves delivery of streaming video over service provider and home networks, working with wireless home devices, performance test equipment and Wi-Fi protocols such as 802.11a/b/g/n/ac, etc.- Writing test specs, assembling test setup, running test cases, collecting, graphing and analyzing test results in Excel spreadsheet and presenting to the engineering team, and development partners.- Defining, designing, specifying, managing, and testing wireless technologies and APIs.- Setup and operated RF Test chambers, Wi-Fi network impairment simulators like RFMU programmable attenuator, network traffic generators like IXIA/Veriwave/Veriwave WaveTest 90.- Involves network protocol testing tools, Microsoft WTT Studio to drive multiple servers, clients and controllers, and scripts written in Powershell and Python.

Validation and Verification of 3rd Gen GSM/UMTS Windows 8 SmartphoneIn Redmond, WA and Austin, TX

End-to-end testing and validation of Ericsson and Alcatel/Lucent implementations of VoLTE (Voice over LTE) from handset to eNodeB through ePacket Core, IMS to SS7 Network, including basic calls, features and supplementary services.

Undisclosed Project- Characterized the performance of the 802.11 a/b/g/n protocol extension Wi-Fi Direct. Many factors such as frequency and interference were varied to determine the effects on latency, jitter and throughput.- Built an Arduino-based microprocessor-based event logger for capturing external events not seen on a wireless protocol trace.

- As a key member of the Wireless Broadband / Advanced Technology department, developed prototype architectures for first of a kind HotSpot complex venues such as airports, airline clubs, distributive antenna systems, meshes, subways and high-speed trains.- As a Systems Engineering and Strategy Team member, worked on improving the performance of T-Mobile core network by isolating errors in network configuration, software defects in Android applications, servers and web-based applications.

Academy School District 20 Wi-Fi Project802.11b wireless network providing wireless access in 26 schools- Performed RF site survey of 26 elementary, middle and senior high schools.- Developed initial requirement specifications from stakeholders and key users.- Determined number of access points, placement and channel allocation.- Wrote specifications as deliverables for purchase and installation of the equipment.Wi-Fi project- Installed access points in small businesses and several retail locations

C-GSM - a enterprise fixed mobile convergent system interconnecting GSM pico radios, IP PBX and TDM PBX with location management across GSM cellular and enterprise networks.- Helped develop initial product requirement specifications.- Wrote white papers to select between technologies to interface GSM 04.08 DTAP, Voice over IP, and PBX trunk and CSTA interface. - Modeled the Voice over IP and data system for capacity and reliability.- Delivered system specification, which enabled development to create two successful releases. Specified the H.323-PBX interface, specified subscriber features (call forwarding, call transfer, three way calling, follow-me), access to voice mail, voice mail indication, CALEA, E-911 and ADA requirements.- Wrote RFP to find voice over IP subsystem hardware / software vendor.- Team Lead of Sustaining Systems Engineering.- Managed vendor relationshipsimpacts.

Senior Systems Engineer, Second generation Wireless Local Loop Project (Opus)- Architected the initial product and architecture definition- Wrote RFP and evaluated responses to find Voice over IP vendor- Wrote Systems Requirements Documents- Modeled system for reliability and for capacity and throughputSenior Systems Engineer, SMS Security / Authentimail project (South Park)-Worked on initial concepts of what became Authentimail, an anti-spam project to protect short messaging and e-mail services. Senior Systems Engineer, Mesh Data Network (Gold Digger)- As part of a team of two, wrote the Systems Requirements DocumentSenior Systems Engineer IS-661 Wireless Loop project- Specified access methods, basic call processing and feature specifications of an IS-661 (CDMA/TDMA hybrid) based Wireless Local Loop system. - Modeled access methods using Bones and CSIM simulations- Specified and insured product compliance with CALEA, E-911 and ADA

Wrote and tested call processing software for Siemens EWSD (tones and announcements, and connections to special services - 911 and large conferences)Worked on EWSD for PCS/GSM project.

Led a team of software engineers to develop code for an IS-54 TDMA cellphone.Attended IEEE IS-54 Standards Body. Submitted 15 contributions to IS-54a through d standards.

Wrote and tested software for Uniden 300 TSD, a full-duplex EFJohnson-Americom compatible voice and data trunking radio

Pre and post sales support for logic analyzers and emulators, covering a teritory of 21 southern US states.

Helped develop an ultra-sound seal-pattern reader to affirm identity and integrity of nuclear fuel bundles.Worked on a communications project that armed and safed the SMALL missile system. Breadboarded prototypes and wrote software in Forth.