Valley Stream, NY 11580-1804 

Analog:

OP-Amps, Comparators, A/D, D/A, Multiplexers, Active/Passive filters, Power Control, PLL and DDS synthesizers, Video amplifiers, Oscillators, Telecom circuits and components, Hybrids, Transformers, Audio circuits, Equalizers, Pseudorandom sequence generators

RF:

Mixers, Modulators, Demodulators, I/Q modulators and demodulators, Amplifiers, BPSK and MSK modulators, Pulse stability and noise measurement systems, TR (transmit/receive) modules, Analog and Digital microwave radio links, Receiver and RF system analysis

Digital:

Altera EPLDs, ECL, TTL (all families), CMOS (all families), SRAM, RS-232, RS-422/485, State machine design, GPIO, CENTRONICS

Computer Skills:

PSpice, Touchstone, "C", BASIC, FORTRAN, Altera MAX + PLUS II, AHDL, HTML, Sun and HP-700 work station experience, Windows 3.11, DOS

Software Development:

Embedded real time controller programs, System component drivers, ATE (automatic test equipment) programs for IEEE 488 and VXI bus controlled equipment

EMI/EMC and Safety:

UL187, UL2601-1, IEC601-1, IEC801-2,3,4,5, EN55011 compliance engineering

Telephonics Farmingdale, NY 

• Verified subsystem interfaces for APS-143 B(V)3 receiver transmitter
• Temperture stabilized video detector and associated A/D converter circuitry.
• Added AGC subsystem to APS-143 (V) 3 radar
• Engineered 350W multi-output foward converter type switching power supply.
• Designed new PFN (pulse forming network) to drive magnetron tube for RDR-1600 weather radar
• Designed Dual channel 800W pulsed IPA amplifier for an 4kW IFF transmitter. Resolved production problems for the 4kW IFF interrogator transmitter
• Designed the next generation digitally synthesized multimode IFF interrogator transmitter that supports the SIF modes, Mode S and Mode 5.

Trex Medical Copiague, NY  

• Qualified entire radiographic and mammographic product lines for CE marking under Medical Device Directive (IEC601-1, IEC801-2,3,4,5, EN55011)
• Designed IGBT driver replacement for 72 kW X-Ray generator
• Designed state machine controlled production test fixture for IGBT driver card
• Designed an intelligent linear actuator motor controller for an X-Ray tube positioner. This state machine controller features automatic power up self test, status monitoring and redundant motor protection

Unisys Great Neck, NY 

Wind Profiler 16 kW UHF transmitter electronics development

• Conceived complete control, protection and monitoring systems.
• Implemented system using a combination of analog, digital and software techniques to minimize parts and production costs while maximizing system reliability and functionality
• Designed RF power monitoring data acquisitions system and all electronic circuitry
• Wrote embedded controller "C" software for Z-World Little Giant microcontroller

Digital Airport Surveillance Radar 22 kW transmitter electronics

• Maintained RF control, BITE (built in test), HPA (high power amplifier) voltage regulator and status monitoring circuitry
• Designed cabinet assembly remote monitoring and control interface

North Warning Cylindrical Array Antenna Radar

• Designed innovative L Band pulse to pulse stability test fixture for TR module and Driver amplifier assemblies that resulted in $150,000 cost savings (Received achievement award and Customer commendation)
• Developed frequency source test programs for measuring pulse to pulse stability on a Watkins Johnson Analog/RF general purpose test fixture
• Provided production support to various Analog, Digital, and RF sub-assemblies
• Wrote software driver for BSU (beam steering unit) interface for antenna production testing

Solid State C Band ATR module

• Supported TR module control electronics (contained hybrids , Gate arrays and ASICs)
• Maintained and enhanced TR module calibration bed and test fixtures
• Supervised control electronics assemblies production and test

RAT 31 Radar Simulator

• Tested and trouble shot IF modules, RF up converters, frequency sources and control circuitry
• $100,000 saved in late delivery penalties by tracing cause of system self test failure to a vendor manufacturing defect in the suspect Constant Phase Attenuator assemblies
• Demonstrated to customer that simulator met the noise floor requirements

NEXRAD MLOS (Microwave Line of Site) T1 data link

• Designed space diversity system using Harris LR4-2000 digital microwave radios, TTI Fault Alarm Systems and Andrew dish antennas. Supervised vendor during construction and test.
• Performed Link analysis proving system met Availability and BER requirements
• Developed T1 line driver and cable equalizer to interface between existing equipment
• Implemented transient protection system to meet NWS transient susceptibility requirements
• Provided engineering support during EMI/EMC (CE03, CE06, CS01,CS06, RE01, RE02, RS01, RS02, RS03) and environmental acceptance testing

NEXRAD Receiver Subassemblies

• Upgraded A/D converter, AGC (automatic gain control) and Receiver interface assemblies
• Designed Receiver interface assembly production test fixture
• Resolved vendor design problems for Phase Detector assembly

Cross Correlator and Multipath Computer Controlled Pseudonoise Jammer Emulator

• Designed 60 MHz up and down converter stages for Jammer Emulator and Cross Correlator
• Developed Serrodyne frequency translator utilizing DDS (direct digital synthesizer) and custom ECL digital phase shifter
• Designed 60 MSPS D/A converter used to create analog baseband waveform
• Trouble shot Digital interface, control and psuedorandom waveform generator logic

Cardion Electronics Woodbury, NY 

Series 9500 Skytrax 634 Channel Frequency Division Multiplex for Analog Microwave Radio systems

• Designed modem card electronics for low cost, low power, high reliability for high volume production
• Developed hybrid combiner/splitter shelf circuitry
• Presently thousands of modem cards in service