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Dr. Gregory L. Charvat
  • About
  • Radar
    • X-Band UWB FMCW Radar
    • Range-Gated S-Band UWB FMCW
    • Range-Gated X-Band FMCW
    • MIT Coffee Can Radar
    • X-Band USB Impulse Radar
    • L-Band UWB Short-Pulse Radar
    • Police Doppler Radar
    • X-Band DC Coupled CW Doppler Radar
    • Unique Approach to FMCW
    • Harmonic Radar
    • WXR-150 sidecar
  • Imaging
    • Synthetic Aperture Radar (SAR)
      • X-band UWB FMCW Rail SAR
      • Range-Gated S-Band Rail SAR
      • Range-Gated X-Band Rail Sar
      • X-Band UWB Impulse Rail Sar
      • Low-Power Radar Imaging System
    • SAR Data
    • Phased Array Radar
      • Through-Wall Radar
      • S-Band MIMO Array
      • IAP MIMO Phased Array
    • Time of Flight Microwave Camera
    • Medical Imaging - MRI
    • Medical Imaging - CMUT Ultrasound
  • Book - Small & Short-Range Radar Systems
  • Courses
  • Radio & Radio Science
    • Radio Science
      • 1.42 GHz Radio Telescope
      • HF Radar
      • Curing Thermoset Polymers
      • Lossy Dielectric Model
    • Amateur Radio
      • 20M SSB transceiver
      • 10&6M SSB transceiver
      • power distribution panel
      • Transceiving with the R390A
      • Portable amateur radio station
      • Mil Surplus & Vinitage Amateur Radio
        • S-76
  • Vacuum Tubes
    • Vacuum Tube Audio
      • Frankenstein
      • Quad-40
      • Mono-Block
      • Battery Powered Tube Pre-Amp
    • Antique Radio
      • Radiola18
      • Colin B. Kennedy 20B
      • Silvertone 4686
      • Olympic 606
      • Zenith K725
      • Emerson Model 888 Transistor
  • Vintage Test Equipment
  • Horology
    • Digital
    • Clocks
    • Watchhes
  • Vintage Computational Devices
    • NCR Class 1500 Cash Register
  • As-Seen on TV
  • Origin Story
Dr. Gregory L. Charvat
  • About
  • Radar
    • X-Band UWB FMCW Radar
    • Range-Gated S-Band UWB FMCW
    • Range-Gated X-Band FMCW
    • MIT Coffee Can Radar
    • X-Band USB Impulse Radar
    • L-Band UWB Short-Pulse Radar
    • Police Doppler Radar
    • X-Band DC Coupled CW Doppler Radar
    • Unique Approach to FMCW
    • Harmonic Radar
    • WXR-150 sidecar
  • Imaging
    • Synthetic Aperture Radar (SAR)
      • X-band UWB FMCW Rail SAR
      • Range-Gated S-Band Rail SAR
      • Range-Gated X-Band Rail Sar
      • X-Band UWB Impulse Rail Sar
      • Low-Power Radar Imaging System
    • SAR Data
    • Phased Array Radar
      • Through-Wall Radar
      • S-Band MIMO Array
      • IAP MIMO Phased Array
    • Time of Flight Microwave Camera
    • Medical Imaging - MRI
    • Medical Imaging - CMUT Ultrasound
  • Book - Small & Short-Range Radar Systems
  • Courses
  • Radio & Radio Science
    • Radio Science
      • 1.42 GHz Radio Telescope
      • HF Radar
      • Curing Thermoset Polymers
      • Lossy Dielectric Model
    • Amateur Radio
      • 20M SSB transceiver
      • 10&6M SSB transceiver
      • power distribution panel
      • Transceiving with the R390A
      • Portable amateur radio station
      • Mil Surplus & Vinitage Amateur Radio
        • S-76
  • Vacuum Tubes
    • Vacuum Tube Audio
      • Frankenstein
      • Quad-40
      • Mono-Block
      • Battery Powered Tube Pre-Amp
    • Antique Radio
      • Radiola18
      • Colin B. Kennedy 20B
      • Silvertone 4686
      • Olympic 606
      • Zenith K725
      • Emerson Model 888 Transistor
  • Vintage Test Equipment
  • Horology
    • Digital
    • Clocks
    • Watchhes
  • Vintage Computational Devices
    • NCR Class 1500 Cash Register
  • As-Seen on TV
  • Origin Story
  • More
    • About
    • Radar
      • X-Band UWB FMCW Radar
      • Range-Gated S-Band UWB FMCW
      • Range-Gated X-Band FMCW
      • MIT Coffee Can Radar
      • X-Band USB Impulse Radar
      • L-Band UWB Short-Pulse Radar
      • Police Doppler Radar
      • X-Band DC Coupled CW Doppler Radar
      • Unique Approach to FMCW
      • Harmonic Radar
      • WXR-150 sidecar
    • Imaging
      • Synthetic Aperture Radar (SAR)
        • X-band UWB FMCW Rail SAR
        • Range-Gated S-Band Rail SAR
        • Range-Gated X-Band Rail Sar
        • X-Band UWB Impulse Rail Sar
        • Low-Power Radar Imaging System
      • SAR Data
      • Phased Array Radar
        • Through-Wall Radar
        • S-Band MIMO Array
        • IAP MIMO Phased Array
      • Time of Flight Microwave Camera
      • Medical Imaging - MRI
      • Medical Imaging - CMUT Ultrasound
    • Book - Small & Short-Range Radar Systems
    • Courses
    • Radio & Radio Science
      • Radio Science
        • 1.42 GHz Radio Telescope
        • HF Radar
        • Curing Thermoset Polymers
        • Lossy Dielectric Model
      • Amateur Radio
        • 20M SSB transceiver
        • 10&6M SSB transceiver
        • power distribution panel
        • Transceiving with the R390A
        • Portable amateur radio station
        • Mil Surplus & Vinitage Amateur Radio
          • S-76
    • Vacuum Tubes
      • Vacuum Tube Audio
        • Frankenstein
        • Quad-40
        • Mono-Block
        • Battery Powered Tube Pre-Amp
      • Antique Radio
        • Radiola18
        • Colin B. Kennedy 20B
        • Silvertone 4686
        • Olympic 606
        • Zenith K725
        • Emerson Model 888 Transistor
    • Vintage Test Equipment
    • Horology
      • Digital
      • Clocks
      • Watchhes
    • Vintage Computational Devices
      • NCR Class 1500 Cash Register
    • As-Seen on TV
    • Origin Story

Amateur Radio

Getting Serious About Crystal Radios. Hackaday, April 7, 2016.

Design & Build Part 2: Multi-Band, Phasing SSB, And SDR. Hackaday, March 4, 2015.

20 M SSB transceiver designed and built from scratch

Get Serious With Amateur Radio; Design & Build A Single-Sideband Transceiver From Scratch Part 1. Hackaday, Feb 2, 2015.

10 M & 6M SSB/CW transceiver

developed for the ARRL ‘Homebrew’ Challenge III

Two Guys, A Hotel Room And A Radio Fire

Two Guys, A Hotel Room And A Radio Fire - Hacakday, May 13, 2016.

Transceiving with the R390A

How to use the best receiver of the tube era in the modern era

Power Distribution & Filtering Panel

we all have to plug in alot of stuff

Military Surplus & Vintage Amateur Radio

Portable Amateur Radio Station

bring HF along on holiday

Vintage Test Equipment

Keeping a fleet of 1950's - 1990's test gear alive and fully operational.

Disclaimer:  Information presented on this website is for reference only.  There are high voltages present in many of these designs that can be fatal.  With some designs shown there is a danger of RF burn that is capable of causing harm to you and others.  Do not attempt to build any of these projects unless you have the proper training and experience.
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