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Author Topic: HF propagation on Mars  (Read 11488 times)
AA7LX
Member

Posts: 7




Ignore
« Reply #15 on: June 02, 2016, 12:43:59 AM »

I think this Topic of Mars Radio Propagation and the interest it can generate into related topics as evidenced here within this Blog already is extremely fascinating--whether or not extended Space travel outside near Earth orbital plane becomes an everyday event. Just look at the Research and Projects that were ongoing during the 1950's even before President Kennedy in 1961 stated a future goal of landing on the Moon. As, it turned out; NASA was ready and Congress provided the funding.  Thank You for this fascinating Topic and for the information on NASA's published report. Sincerely, AA7LX.   
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KC2QYM
Member

Posts: 689




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« Reply #16 on: June 02, 2016, 07:44:19 AM »

The trip to Mars..ah yes what a paradise.  The proponents of martian excursions are people who are engaged in the aerospace industry as well as academics in the scientific community who see government pork barrels rolling into their dreams. What practical end result of colonizing mars comes out of this expenditure?  Even if mars was laden with the rarest minerals what practical way could you bring them back to earth in any sufficient quantities?  I think that some of the eyes wide shut space freaks have transitioned to the Sci-Fi side of thinking.  OK, so the government prints endless bales of money to fund the careers of the self interested Space industry but what does the rest of humanity get.  If monies were expended on advanced satellites that provided environmental information back to us to help us make decisions on how to reverse adverse trends then I'm all for it.  But to try to convince humanity 'AKA' the taxpayers to fund martian adventures...then some have their heads up their you know wheres.  There are practical and valid reasons to spend money on space; going to mars or sending humans 'out there' isn't one of them.  Now someone will attack me for being anti-space, a Luddite, etc.  go ahead....
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DRBEN
Member

Posts: 261




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« Reply #17 on: June 02, 2016, 11:18:36 AM »

The trip to Mars..ah yes what a paradise.  The proponents of martian excursions are people who are engaged in the aerospace industry as well as academics in the scientific community who see government pork barrels rolling into their dreams. What practical end result of colonizing mars comes out of this expenditure?  Even if mars was laden with the rarest minerals what practical way could you bring them back to earth in any sufficient quantities?  I think that some of the eyes wide shut space freaks have transitioned to the Sci-Fi side of thinking.  OK, so the government prints endless bales of money to fund the careers of the self interested Space industry but what does the rest of humanity get.  If monies were expended on advanced satellites that provided environmental information back to us to help us make decisions on how to reverse adverse trends then I'm all for it.  But to try to convince humanity 'AKA' the taxpayers to fund martian adventures...then some have their heads up their you know wheres.  There are practical and valid reasons to spend money on space; going to mars or sending humans 'out there' isn't one of them.  Now someone will attack me for being anti-space, a Luddite, etc.  go ahead....

No, I won't attack you for being anti-space just for being uninformed.

Here's a list of documents related to actual commercial spinoffs resulting from space exploration. Links to all the documents listed are available at http://spinoff.nasa.gov/spinoff/database/

The list contains 1,282 articles on specific Earth-related spinoffs from space research. They cover spinoffs in almost every imaginable field, including agriculture, food, energy, environment, health, oceanography, aviation, water quality, acoustics, forestry, robotics, medical imaging, cartography, optics and vision, building materials, computing, etc., etc., etc.

eHam limits posts to a maximum of 20,000 characters, so I can only give you a preview of the full list:

Title
Publisher


Electrospray Thrusters Boost Efficiency, Precision
Jet Propulsion Laboratory

Temperature Sensors Cement Integrity of Bridges
Glenn Research Center

Space-Ready Spectrometer Offers Terresterial Advantages
Jet Propulsion Laboratory

Software Helps Restore Fire-Ravaged Habitats
Goddard Space Flight Center

Hydrogen Detection Tape Saves Time and Lives
Kennedy Space Center

Tiny Capsules Enable a World of Possiblities
Marshall Space Flight Center

DigitalClone Software Predicts, Extends Machine Life
Glenn Research Center

Rodent Research Contributes to Osteoporosis Treatments
Ames Research Center

Precision Coffeemaker Adapts Brews to Beans, Taste
Ames Research Center

System-Health Monitor Predicts Failures before They Happen
Ames Research Center

Recycling Technology Converts Plastice Waste to Energy
Glenn Research Center

Unmanned Research Aircraft Test Cutting-Edge Innovations
Armstrong Flight Research Center

Temperature-Resistant Materials Enable Space-Like Cold on Earth
Jet Propulsion Laboratory

Artificial Intelligence Targets Advertising by Understanding User
Jet Propulsion Laboratory

Multispectral Satellite Imagery Shows Farmers' Fields in New Light
Goddard Space Flight Center

Cost-Saving Method Yields Solar Cells for Exploration, Gadgets
Glenn Research Center

Space-Ready Durometers Measure Hardness on Earth
Johnson Space Center

Space Blanket-Inspired Cases Protect Expensive Devices
Marshall Space Flight Center

Flock of Nanosatellites Provides a Daily Picture of Earth
Ames Research Center

Single-Photon Lidar Maps Ground Features Quickly, Efficiently
Goddard Space Flight Center

High-Temperature Superconductors Deliver Power without Heat
Goddard Space Flight Center

NASA Climate Analytics Support Biological Research
Goddard Space Flight Center

GPS Sensor Web Helps Forecasters Warn of Monsoon Flash Floods
Jet Propulsion Laboratory

Lightweight, Ultra-Strong Nanotubes to Transform Industry
Langley Research Center

Photocatalytic Water Splitter Stores Energy as Hydrogen
Ames Research Center

NODE+ Platform Integrates Sensors with Smartphones
Ames Research Center

Algorithm Predicts and Evaluates Storm Surges
Stennis Space Center

Multidisciplinary Software to Help Take Aircraft to the Next Level
Glenn Research Center

Orbital Trajectory Analyzer Takes Mission Planning to New Heights
Goddard Space Flight Center

CO2 Recovery System Saves Brewers Money, Puts Bubbles into Beer
Johnson Space Center

Mars Rover Work Spawns  Collaboration Software
Jet Propulsion Laboratory

Electro-Optic Ceramic Creates High-Speed Fiber-Optic Networks
Langley Research Center

Laser Vision Helps Hubble, Packaging Shippers See Clearly
Goddard Space Flight Center

Rice Crop Models Stabilize Global Markets, Enable Efficient Irrigation
Stennis Space Center

Data Visualizer Enhances Modeling for Cars, Consumer Products
Langley Research Center

Pressure Garments Save New Mothers' Lives
Ames Research Center

Modeling Software Helps Rocket Scientists Go with the Flow
Marshall Space Flight Center

Primer Stops Corrosion without Requiring Rust Removal
Kennedy Space Center

Modified Monitor Provides Glasses-Free 3D for Pilots, Gamers
Langley Research Center

Wide Area Thermal Imaging System Brings the Landscape into Focus
Ames Research Center

Cryocoolers Fuel Exploration in Space and on Earth
Goddard Space Flight Center

Software Optimizes Designs from Spaceships to Wind Turbines
Langley Research Center

Tool Kit Simplifies Development of High-Affinity Molecules
Johnson Space Center

Mars Methane Detector Identifies Harmful Gas Leaks
Jet Propulsion Laboratory

Open Source Tools Popularize Infrastructure for Cloud Computing
Ames Research Center

Buildings for Manipulating Magnetism Revolutionize Magnetometers
Ames Research Center

Helium Recapture System Reclaims Hydrogen for Industry Use
Stennis Space Center

Open Source Aircraft Design Software Helps Industry, Hobbyists
Langley Research Center

Heat-Reflecting Material Regulates Body Temperature
Ames Research Center

Antimicrobial Agent Updates Ancient Industry of Prayer Mats
Johnson Space Center

Analytic Tool Simplifies Metal Fracture Assessments
Marshall Space Flight Center

Probes Measure Gases for Environmental Research
Goddard Space Flight Center

Audio App Brings a Better Night_s Sleep
Johnson Space Center

Algae-Derived Dietary Ingredients Nourish Animals
Ames Research Center

Bioreactor Yields Extracts for Skin Cream
Johnson Space Center

3D Endoscope to Boost Safety, Cut Cost of Surgery
Jet Propulsion Laboratory

Schedule Analysis Software Saves Time for Project Planners
Marshall Space Flight Center

Charged Particles Kill Pathogens and Round up Dust
Marshall Space Flight Center

Portable Planetariums Teach Science
NASA Headquarters

Cabin Pressure Monitors Notify Pilots to Save Lives
Kennedy Space Center

Remote Sensing Technologies Mitigate Drought
Ames Research Center

Ruggedized Spectrometers Are Built for Tough Jobs
Jet Propulsion Laboratory

Laser Imaging Video Camera Sees through Fire, Fog, Smoke
Langley Research Center

Landsat Imagery Enables Global Studies of Surface Trends
Goddard Space Flight Center

Low-Cost Sensors Deliver Nanometer-Accurate Measurements
Kennedy Space Center

Improved Calibration Shows Images_ True Colors
Stennis Space Center

Private Astronaut Training Prepares Commercial Crews of Tomorrow
Johnson Space Center

Water Mapping Technology Rebuilds Lives in Arid Regions
Goddard Space Flight Center

Underwater Adhesives Retrofit Pipelines with Advanced Sensors
Johnson Space Center

Satellite Data Inform Forecasts of Crop Growth
Stennis Space Center

Shock Absorbers Save Structures and Lives during Earthquakes
Marshall Space Flight Center

Gas Conversion Systems Reclaim Fuel for Industry
Johnson Space Center

Software Facilitates Sharing of Water Quality Data Worldwide
Johnson Space Center

Space Grant Research Launches Rehabilitation Chair
Glenn Research Center

Ionospheric Mapping Software Ensures Accuracy of Pilots_ GPS
Jet Propulsion Laboratory

Air Revitalization System Enables Excursions to the Stratosphere
Johnson Space Center

LEDs Illuminate Bulbs for Better Sleep, Wake Cycles
Kennedy Space Center

Magnetic Fluids Deliver Better Speaker Sound Quality
Glenn Research Center

Vision Trainer Teaches Focusing Techniques at Home
Ames Research Center

Liquid Cooling Technology Increases Exercise Efficiency
Ames Research Center

Micromachined Parts Advance Medicine, Astrophysics, and More
Marshall Space Flight Center

Sound Modeling Simplifies Vehicle Noise Management
Langley Research Center

Flight Controller Software Protects Lightweight Flexible Aircraft
Armstrong Flight Research Center

Ubiquitous Supercritical Wing Design Cuts Billions in Fuel Costs
Langley Research Center

Activity Monitors Help Users Get Optimum Sun Exposure
Goddard Space Flight Center

Aircraft Geared Architecture Reduces Fuel Cost and Noise
Ames Research Center

3D Lasers Increase Efficiency, Safety of Moving Machines
Johnson Space Center

Electrical Monitoring Devices Save on Time and Cost
Goddard Space Flight Center

Compact Vapor Chamber Cools Critical Components
Glenn Research Center

Dry Lubricant Smooths the Way for Space Travel, Industry
Jet Propulsion Laboratory

Software Cuts Homebuilding Costs, Increases Energy Efficiency
NASA Headquarters

Cloud Computing Technologies Facilitate Earth Research
Ames Research Center

Custom 3D Printers Revolutionize Space Supply Chain
Marshall Space Flight Center

Balance Devices Train Golfers for a Consistent Swing
NASA Headquarters

Cloud-Based Data Sharing Connects Emergency Managers
Stennis Space Center

Software Simplifies the Sharing of Numerical Models
Goddard Space Flight Center

Cameras Monitor Spacecraft Integrity to Prevent Failures
Jet Propulsion Laboratory

Patient Simulators Train Emergency Caregivers
Johnson Space Center

Processor Units Reduce Satellite Construction Costs
Marshall Space Flight Center

Data Mining Tools Make Flights Safer, More Efficient
Ames Research Center

Solar Refrigerators Store Life-Saving Vaccines
Johnson Space Center

Procedure-Authoring Tool Improves Safety on Oil Rigs
Ames Research Center

Home Air Purifiers Eradicate Harmful Pathogens
Marshall Space Flight Center

Programs Visualize Earth and Space for Interactive Education
Jet Propulsion Laboratory

Radiant Barriers Save Energy in Buildings
Langley Research Center

Robots Spur Software That Lends a Hand
Johnson Space Center

Smart Sensors Gather Information for Machine Diagnostics
Stennis Space Center

Thermal Materials Protect Priceless, Personal Keepsakes
Johnson Space Center

NASA Standards Inform Comfortable Car Seats
Johnson Space Center

Testing Devices Garner Data on Insulation Performance
Kennedy Space Center

Software Accelerates Computing Time for Complex Math
Ames Research Center

Handheld Diagnostic Device Delivers Quick Medical Readings
Glenn Research Center

NASA-Enhanced Water Bottles Filter Water on the Go
Johnson Space Center

Air Systems Provide Life Support to Miners
Johnson Space Center

Heat Shield Paves the Way for Commercial Space
Ames Research Center

Catalytic Converters Maintain Air Quality in Mines
Langley Research Center

Vision Algorithms Catch Defects in Screen Displays
Ames Research Center

Virtual Machine Language Controls Remote Devices
Kennedy Space Center

Thermal Materials Drive Professional Apparel Line
Johnson Space Center

Interfaces Visualize Data for Airline Safety, Efficiency
Langley Research Center

Brainwave Monitoring Software Improves Distracted Minds
Langley Research Center

Reactors Save Energy, Costs for Hydrogen Production
Glenn Research Center

Shuttle Engine Designs Revolutionize Solar Power
Marshall Space Flight Center

Experiments Result in Safer, Spin-Resistant Aircraft
Langley Research Center

Coatings Preserve Metal, Stone, Tile, and Concrete
Goddard Space Flight Center

Monitors Enable Medication Management in Patients’†Homes
Glenn Research Center

Micro-Accelerometers Monitor Equipment Health
Glenn Research Center

Oxygen Sensors Monitor Bioreactors and Ensure Health and Safety
Kennedy Space Center

Innovative Software Tools Measure Behavioral Alertness
Johnson Space Center

Miniaturized, Portable Sensors Monitor Metabolic Health
Glenn Research Center

Simulation Tools Prevent Signal Interference on Spacecraft
Kennedy Space Center

Mars Technologies Spawn Durable Wind Turbines
Ames Research Center

Satellite Data Aid Monitoring of Nation’≥ Forests
Stennis Space Center

Deformable Mirrors Capture Exoplanet Data, Reflect Lasers
Goddard Space Flight Center

Collaborative Platforms Aid Emergency Decision Making
NASA Headquarters

Dietary Formulas Fortify Antioxidant Supplements
Johnson Space Center

Gigapixel Images Connect Sports Teams with Fans
Ames Research Center

Photocatalytic Solutions Create Self- Cleaning Surfaces
Stennis Space Center

Wireless Sensors Pinpoint Rotorcraft Troubles
Glenn Research Center

Superconductors Enable Lower Cost MRI Systems
Glenn Research Center

Detectors Ensure Function, Safety of Aircraft Wiring
Kennedy Space Center

Dry Electrodes Facilitate Remote Health Monitoring
Johnson Space Center

Web Solutions Inspire Cloud Computing Software
Ames Research Center

Behavior Prediction Tools Strengthen Nanoelectronics
Marshall Space Flight Center

Vision Systems Illuminate Industrial Processes
Marshall Space Flight Center

Shuttle Topography Data Inform Solar Power Analysis
Jet Propulsion Laboratory

Oxygen Assessments Ensure Safer Medical Devices
Johnson Space Center

Ultrasonic Detectors Safely Identify Dangerous, Costly Leaks
Kennedy Space Center

Simulation Packages Expand Aircraft Design Options
Langley Research Center

Pressure-Sensitive Paints Advance Rotorcraft Design Testing
Langley Research Center

Fiber Optics Deliver Real-Time Structural Monitoring
Armstrong Flight Research Center

Terahertz Lasers Reveal Information for 3D Images
Kennedy Space Center

Efficient Cells Cut the Cost of Solar Power
Glenn Research Center

Camera Systems Rapidly Scan Large Structures
Langley Research Center

Diagnostics Tools Identify Faults Prior to Failure
Goddard Space Flight Center

Concentrators Enhance Solar Power Systems
Glenn Research Center

Power Converters Secure Electronics in Harsh Environments
Johnson Space Center

Microradiometers Reveal Ocean Health, Climate Change
Goddard Space Flight Center

Commercial Platforms Allow Affordable Space Research
NASA Headquarters

Spacesuit Materials Add Comfort to Undergarments
Johnson Space Center

Water Treatment Technologies Inspire Healthy Beverages
Johnson Space Center

Shuttle Repair Tools Automate Vehicle Maintenance
Kennedy Space Center

Innovative Coatings Potentially Lower Facility Maintenance Costs
Stennis Space Center

Space-Inspired Trailers Encourage Exploration on Earth
Johnson Space Center

Meter Designs Reduce Operation Costs for Industry
Marshall Space Flight Center

Speech Recognition Interfaces Improve Flight Safety
Langley Research Center

Archiving Innovations Preserve Essential Historical Records
NASA Headquarters

Rovers Pave the Way for Hospital Robots
Jet Propulsion Laboratory

Interferometers Sharpen Measurements for Better Telescopes
Goddard Space Flight Center

Ultra-Thin Coatings Beautify Art
Johnson Space Center

Polymers Advance Heat Management Materials for Vehicles
Marshall Space Flight Center

Elemental Scanning Devices Authenticate Works of Art
Marshall Space Flight Center

Anti-Icing Formulas Prevent Train Delays
Ames Research Center

Thin Films Protect Electronics from Heat and Radiation
Langley Research Center

Telescope Innovations Improve Speed, Accuracy of Eye Surgery
Goddard Space Flight Center

Emergency Systems Save Tens of Thousands of Lives
Goddard Space Flight Center

Satellite Maps Deliver More Realistic Gaming
Jet Propulsion Laboratory

Sensors Enable Plants to Text Message Farmers
Marshall Space Flight Center

NASA Missions Inspire Online Video Games
Goddard Space Flight Center

Nanotube Production Devices Expand Research Capabilities
Glenn Research Center

Software Innovations Speed Scientific Computing
Goddard Space Flight Center

Custom Machines Advance Composite Manufacturing
Langley Research Center

Materials Advance Chemical Propulsion Technology
Glenn Research Center

Content Platforms Meet Data Storage, Retrieval Needs
Goddard Space Flight Center

Tooling Techniques Enhance Medical Imaging
Goddard Space Flight Center

Frameworks Coordinate Scientific Data Management
Jet Propulsion Laboratory

Coating Processes Boost Performance of Solar Cells
Glenn Research Center

Cameras Improve Navigation for Pilots, Drivers
Jet Propulsion Laboratory

Controller Chips Preserve Microprocessor Function
Marshall Space Flight Center

High-Temperature Coatings Offer Energy Savings
Ames Research Center

Electronic Handbooks Simplify Process Management
Goddard Space Flight Center

Catalyst Substrates Remove Contaminants, Produce Fuel
Glenn Research Center

Polyimide Foams Offer Superior Insulation
Langley Research Center

Advisory Systems Save Time, Fuel for Airlines
Ames Research Center

Models Support Energy-Saving Microwave Technologies
Kennedy Space Center

Software Programs Derive Measurements from Photographs
Kennedy Space Center

Thermal Components Boost Performance of HVAC Systems
Kennedy Space Center

Bioreactors Drive Advances in Tissue Engineering
Johnson Space Center

Ventilator Technologies Sustain Critically Injured Patients
Johnson Space Center

Analyzers Provide Water Security in Space and on Earth
Johnson Space Center

Modeling Programs Increase Aircraft Design Safety
Armstrong Flight Research Center

Integrated Design Tools Reduce Risk, Cost
Langley Research Center

Monitors Track Vital Signs for Fitness and Safety
Ames Research Center

Alloy-Enhanced Fans Maintain Fresh Air in Tunnels
Marshall Space Flight Center

Beam Steering Devices Reduce Payload Weight
Johnson Space Center

Simulation Tools Model Icing for Aircraft Design
Glenn Research Center

High-Pressure Systems Suppress Fires in Seconds
Marshall Space Flight Center

Remediation Technologies Eliminate Contaminants
Kennedy Space Center

Control Algorithms Charge Batteries Faster
Glenn Research Center

World Wind Tools Reveal Environmental Change
Ames Research Center

Modified Fittings Enhance Industrial Safety
Kennedy Space Center

Mass Analyzers Facilitate Research on Addiction
Kennedy Space Center

Technologies Render Views of Earth for Virtual Navigation
Stennis Space Center

Tools Ensure Reliability of Critical Software
Jet Propulsion Laboratory

Analyzers Measure Greenhouse Gasses, Airborne Pollutants
Ames Research Center

Rocket Engine Innovations Advance Clean Energy
Marshall Space Flight Center

Fly-by-Wire Systems Enable Safer, More Efficient Flight
Armstrong Flight Research Center

Protein Innovations Advance Drug Treatments, Skin Care
Marshall Space Flight Center

Retrofits Convert Gas Vehicles into Hybrids
Glenn Research Center

Information Systems Coordinate Emergency Management
Stennis Space Center

Imaging Systems Provide Maps for U.S. Soldiers
Goddard Space Flight Center

Burnishing Techniques Strengthen Hip Implants
Glenn Research Center










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KD1I
Member

Posts: 304




Ignore
« Reply #18 on: June 09, 2016, 04:18:22 PM »

DRBEN, thank you for the rational and well researched reply. It saddens me that the naysayers and small minded thinkers are so uninformed yet they criticize pure research because there is no immediate return.   My favorite was a commentator who decried we went to the moon and all we got back was worthless rocks and Tang.     and, Oh Yes, those ICs we use came from space aliens and not research.       73, Jim      KD1I
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KA2FIR
Member

Posts: 46




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« Reply #19 on: August 09, 2016, 08:11:49 PM »

Let Warren buffet pay for it.
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W3RSW
Member

Posts: 416




Ignore
« Reply #20 on: August 22, 2016, 12:43:07 PM »

Quote
JPL Publication 02-5 
Radio Wave Propagation Handbook for Communication on and Around Mars
Christian Ho Nasser Golshan Arvydas Kliore   

Yes, it Helps to read at least the title page.
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Rick, W3RSW
KD0ZGW
Member

Posts: 479




Ignore
« Reply #21 on: Yesterday at 11:23:51 AM »

DRBEN, alan Shepard's flight was sub-orbital.  John Glenn was the 1st American to orbit the earth.

Kudo's for the defense of the manned space program.  Opponents are invariably uninformed of the paybacks.
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