Title: Radio Merit Badge Amateur Radio Option
1Radio Merit Badge(Amateur Radio Option)
2Purpose
- Make You a
- Radio Expert
- Basic
- Familiarity
- With Radio
- Emergency
- Preparedness
3Morning Schedule
- 800 850 Introduction To Radio
- Ten-Minute Break
- 900 950 Components Safety
- Ten-Minute Break
- 1000 1050 Amateur Radio Basics Ten-Minut
e Break - 1100 1200 Emergency Comm Procedures
- 1200 1245 Lunch Break
4Afternoon Schedule
- 1245 150 Radio Technology In Our Modern
World - Ten-Minute Break
- 200 300 Field Activity Block I
- 300 400 Field Activity Block II
- 400 500 Field Activity Block III
- 500 545 Group Forum and Merit Badge
Sign-off
5Radio Merit Badge
- Session I
- Introduction To Radio
6What Is Radio?
- Electronic communication from one location to
another without wires
1920s-era Radio Receiver
7Broadcast Radio
- Radio transmission which is one-way, and intended
for reception by the general public
8Two-Way Radio
- Radio which both transmits and receives (two-way)
- Police / fire
- Utilities
- Businesses
- Cellular
9Amateur Radio
- A volunteer non-commercial radio service devoted
to educational, recreational and emergency
purposes - Ham Radio
- Hobby Radio
10The Electromagnetic Spectrum
Long Radio Wavelengths
Short Radio Wavelengths
Sound
Microwaves
- Frequency - Measured in Hertz (kilohertz,
megahertz, gigahertz) - Wavelength Measured in meters (cm)
Electromagnetic Radiation Demonstration
11DRAW the Electromagnetic Spectrum
MF
Marine
AM Broadcast
Marine / Navigation
300 Khz
3 Mhz
HF
10m Ham
International Shortwave Broadcast
3 Mhz
30 Mhz
TV
VHF
VHF Ham
FM Broadcast
TV
Air
P/F
6m Ham
30 Mhz
300 Mhz
UHF
WiFi
UHF Ham
TV
Cellular
Police/Fire
300 Mhz
3 Ghz
12US Call Signs
- Every US station has a call sign issued by the
Federal Communications Commission (FCC) - Broadcast call signs begin with K or W
- KXAS WBAP
- Amateur call signs begin with A, K, N or W
- AA5TI K5EPH N5WBH W5EZA
13Amateur Radio Call Signs
14International Call Signs
- International call sign prefixes assigned by the
International Telecommunications Union (ITU) - Countries issue specific call signs
- Examples XE Mexico
- VE Canada
- VK Australia
- ZL New Zealand
15How Radio Waves Travel
Ionosphere (80 km)
Sky Waves
Skip Zone
Ground Wave
16Solar Activity
17How Radio Waves Are Created
Basic AM Transmitter
RF Oscillator
Carrier Signal
Feed Line
Pre Amp
Final Amp
Antenna
Audio Signal
Modulated RF Signal
Mixer
Mic
- Transmitter - Generates radio frequency (RF)
signal - Amplifier - Makes the signal stronger and drives
feed line - Antenna - Launches the electromagnetic wave into
the air
18Modulation
- Modulation Superimposing information (audio,
data, video) onto a radio signal
Un-modulated radio carrier
Carrier modulated with audio
19How radio signals carry information
- Continuous Wave (CW or Morse Code)
- Amplitude Modulation (AM)
- Frequency Shift-Keying (FSK Examples Radio
teletype) - Frequency Modulation (FM)
20Draw Block Diagram of Amateur Radio Station
Antenna
Transceiver XCVR
Antenna Switch
Amp
Key
Dummy Load
Mic
21Radio Propagation Characteristics
- HF Wavelengths (160 10 meters)
- Generally utilizes skywave propagation
- Affected by solar activity
- VHF Wavelengths (6 meters 2 meters)
- Generally utilize line-of-sight
- Affected very little by solar activity
- UHF Wavelengths (70cm and shorter)
- Generally utilize light-of-sight propagation
- Affected much by terrain, buildings
22Radio Station WWV
2.5, 5, 10, 15 and 20 Mhz
- Transmits on standard frequencies
- If you can hear WWV, the HF bands are open
Fort Collins, CO
23Broadband Over Power Lines (BPL)
- Sends internet signals down open power lines
- Pollutes radio frequencies between 1.7 and 80 Mhz
- Over 59,000 federal government radio systems in
affected frequency bands - Speeds of 300k to 1 Mbps (near DSL speed, but is
shared connection)
24WiMax The Superior Technology
Popular Mechanics, Dec 2004, p30
- Non-polluting because it has its own frequencies
(2500 to 2900 Mhz) - Currently being built on existing cell towers
- Fixed range (cell tower to home of office) up to
30 miles 70 Mbps - Mobile coverage same as ordinary cell coverage 1
to 4 Mbps - Can hand-over data stream as you travel at
highway speeds up to 60 MPH
25Radio Merit Badge 10 Minute Break
NextComponents Safety
26Radio Merit Badge
- Session II
- Components Safety
27Components
28Old Timey Components
29Basic Electrical Terms
- Conductor substance through which electricity
flows easily (copper, silver, gold) - Insulator substance through which electricity
does not flow easily (glass, rubber, plastic)
30Types of Electrical Current
- Direct Current (DC) flows only one direction
produced by battery - Alternating Current (AC) flows in first one
direction then another found in our home
electrical outlets
31Basic Electrical Terms
- Voltage electrical pressure (volts)
- Current the flow of electricity through a
circuit (amps) - Power the ability to do work (watts)
32Block Diagram vs. Schematic
Radio Transmitter
Block Diagram Outlines the various functions
within an electronic device
RF Oscillator
Carrier Signal
Pre Amp
Final Amp
Input
Output
Audio Signal
Modulated RF Signal
Mixer
Switch
120 ohm
Schematic Diagram Uses standard electrical
symbols to describe an electrical circuit in
detail
3V
LED flashlight
33Radio Block Diagram
RF Oscillator
Carrier Signal
Pre Amp
Final Amp
TX
Feed Line
Audio Signal
Modulated RF Signal
Antenna
Microphone
Mixer
RX
Transmitter
Receiver
RF/IF Oscillator
Reference Frequency
Pre Amp
Output Amp
Tuner
Audio Signal
Modulated RF Signal
Speaker
Detector
Transceiver
Volume Control
34Open Circuit
When S1 is open current can not flow. This is
an OPEN Circuit.
S1
120 ohm
3V
LED flashlight
35Closed Circuit
When S1 is closed current flows and the
LED Lights up. This is a CLOSED Circuit
S1
120 ohm
Current Flow
3V
LED flashlight
36Short Circuit
If S1 gets broken and the contacts touch the case
of the flashlight, the result could cause current
to flow out of control through an unintended
path. This is a SHORT circuit.
S1
120 ohm
Abnormally High Current Flow
3V
LED flashlight
37Circuit Experiment
Fuse
SPDT Switch
Battery
Bulb
- This Experiment Demonstrates
- Open Circuit
- Closed (complete) Circuit
- Short Circuit
38Schematic Symbols
SPDT Switch
N.O. Push button
SPST Switch
Light-Emitting Diode
Battery
Capacitor
Inductor
Transformer
Diode
NPN Bipolar Transistor (BJT)
PMOS Field Effect Transistor (FET)
Variable Capacitor
Variable Resistor (Potentiometer)
AC Voltage Source
OpAmp
Earth Ground
Circuit Ground
Incandescent Lamp
Speaker/Mic
39Properties
Resistor opposes or resists current
flow measured in ohmsCapacitor stores energy
in electric field measured in faradsInductor
stores energy in a magnetic field measured in
henries
40Safety With RF Energy
- Never operate radios with the cover off
- Exposure to high levels of RF can cause burns and
cancer - Human eyes especially sensitive to RF
- Hams required to conduct a routine station
evaluation to verify safe operation (usually
done by consulting a chart)
41Safety With Electricity
- Minimum fatal voltage 30 volts
- Minimum fatal current if passed through the human
heart 1/10th of an amp - Power lines are un-insulated and carry thousands
of volts never touch them!
42Electricity Through the Body
Through Heart !
Through Hand
43Electric Power
Power Generating Plant
44Electric Power
Transmission Lines (Millions of Volts)
45Electric Power
Substation (Millions of volts in 14,000 volts
out)
46Electric Power
Distribution Lines and Customer Transformer
14,000 volt primary distribution lines
Transformer (Converts 14,000 volts down to 240
and 120 volts)
240 / 120 volt lines to house
47The Future of Power Generation
- Plant uses plasma beam to vaporize trash into a
flammable gas, which is used to generate
electricity - Cleaner than natural gas power plant
- Powers 40,000 homes
- Excess steam powers machines in nearby juice
factory - Rock-like ash used for road paving material
- County is now mining its land fill will empty
in 18 years
www.Geoplasma.com
48Do CFLs Save Energy?
- Uses about ¼ of what an incandescent bulb draws
- A 25 watt CFL produces the same light as 100 watt
incandescent - Life Lasts up to 7 years
- Do they save energy?
- Yes they do, but we dont
49Trivia Question
- Who invented the florescent light?
- Thomas Edison
- Nikola Tesla
- George Westinghouse
- Alexander Graham Bell
50Trivia Question
- Who invented the florescent light?
- Nikola Tesla
51The Future Of Lighting - LEDs
- Use 1/10th the energy of an ordinary bulb
- Last up to 25 years
- Home versions can vary intensity and color
LED Traffic Signal
52The Power In Power Lines
- TXU Energy Show Winter Camp 2004
53Substation Video
54Boy Meets Power Lines
- Boys Arms Amputated After Shock From Cable
- GENOA, Ark. Doctors amputated both arms of a
13-year-old boy below the elbow after he
sustained a shock from an electrical distribution
cable. David Letterman, 13, of Genoa underwent
surgery at Arkansas Childrens Hospital, his
family said. David and his friend, Cody Sims,
11, were walking a power line right-of-way with
the idea of bow hunting before church when they
came upon a tree that had fallen on an electrical
cable. David wanted to remove the dead tree from
the line because he saw it smoking and was afraid
it would catch fire. - Dallas Morning News Thursday, October 9, 2003,
page 3A
55Electrical Burn Photos
What Electricity Can Do To a Human Body
Graphic Images
56Ground-Mounted Transformers
Sinking Transformer reported to power company
- Photo Courtesy of Standard Utilities Ft. Worth,
Texas
57Ground-Mounted Transformers
Neighborhood kids had tunneled under transformer
- Photo Courtesy of Standard Utilities Ft. Worth,
Texas
58Ground-Mounted Transformers
Input 14,000 volts Output 240 volts to
FOUR homes
- Photo Courtesy of Standard Utilities Ft. Worth,
Texas
59Ground-Mounted Transformers
Note playground ball inches from primary terminals
- Photo Courtesy of Standard Utilities Ft. Worth,
Texas
60If Power Lines Strike Your Car
- Stay inside and call for help
- Power lines can re-energize automatically. Never
assume they are dead. - If car catches fire, jump out on both feet and
scoot away.
Boom Truck In Power Lines Video Clip
61Antennas Towers
- Never place antennas or feed lines
- OVER or UNDER power lines
- Where they could fall on a power line in any
direction - Where a person could touch the antenna
62Lightning Protection
- Antenna pole connected to ground rod
- Disconnect radios if lightning is in the area
- Disconnect radios when not in use
- Connect antennas to ground when not in use
63Grounding Your Station
Common ground point Fuse or circuit breaker
Safety interlock on high voltage supplies
Everyone in your house should know how to shut
off the power
64Hybrid Cars
- Main batteries - 200 to 300 volts DC at hundreds
of amps - With car switched on, main power lines carry 300
to 600 volts AC, three phase
65Installing A Radio In A Hybrid
Get help from an adult !
Only connect to auxiliary battery
66Radio Merit Badge 10 Minute Break
NextAmateur Radio Basics
67Radio Merit Badge
- Session III
- Amateur Radio Basics
68What Is Amateur Radio?
- Voluntary, non-commercial radio service
established to - Increase the number of radio
- and electronics experts
- Improve international goodwill
- Assist with emergency
- communications
- Experiment with radio to improve technology
69Emergency Communications
- Americas backup communications system
- The eyes and ears of the National Weather
Service - The only truly fail-safe communications system
in the world
70Hurricane Katrina - 2005
- 2.8 Million Wireline Phones - 420,000 CATV /
Internet Connections - 1600 Cell Sites - New Orleans Police / Fire Radio System Off Air
For Four Days
71Licensing
- License required to transmit, but not to receive
- Tests given by
- volunteer examiners
- No age limit
- No distance limit
72Classes of License
- Technician Tenderfoot license, 35-question
written test, VHF and above - General Intermediate license, additional
35-question written test, all bands / all modes - Extra Highest class of license, additional
50-question written test, more frequencies on all
bands
73Technology In The Wilderness
From the BSA Field Book, page 436
Many SAR teams use ham radio technology,
especially the two-meter band and the FCC
Technician license, to facilitate communications.
74Mobile Operation
The ability to operate while in motion
75Portable Operation
Fixed operation at a location other than you
normal home station.
- Camp
- Field Day
- Emergency Drill
76Repeaters
- A relay station situated in a high location which
extends the range of mobiles and handhelds some
linked to internet
Repeater
City A
City B
77New Repeater at Camp Cherokee
- Medium power repeater for teaching purposes
- 441.725 Mhz (100 hz PL)
- Handheld coverage throughout camp and beyond (3
to 14 miles) - Future Echolink connection?
78Types of Radios - Handhelds
- Bands VHF / UHF
- Power Up to 5 watts
- Range 1 to 5 miles without repeater, much more
with repeater - Price 100 to 350
Single Band or Dual Band
79Types of Radios Mobiles
Single Band
- Bands VHF / UHF
- Power Up to 50 watts
- Range 5 to 10 miles without repeater, much more
with repeater - Price 150 to 500
Dual Band
80Types of Radios Base Station
- Bands HF (Sometimes VHF / UHF also)
- Power Usually 100 watts
- Range Worldwide
- Price 700 to 10,000
81Phonetic Alphabet
Alpha Bravo Charlie Delta Echo Foxtrot Golf Hotel
India
Joliet Kilo Lima Mike November Oscar Papa Quebec R
omeo
Sierra Tango Uniform Victor Whiskey X-Ray Yankee Z
ulu/Zed
Example My name is Tom tango, oscar, mic
Tom
82Q-Codes
- QSO An on-air conversation
- QTH Location
- QRM Man-made noise
- QRN Natural noise (static, lightning)
- QRZ Who is calling me?
- QRP Low-power operation
- QRT Signing off
83RST Reporting System
- Readability, Signal strength, Tone
1 5
1 9
1 9
No Longer Used
599 Or simply 59
84Sending Out An Emergency Call - Morse
Morse Distress Signal S O S ( . . . _ _
_ . . . )
Early wireless radios used very long wavelengths
requiring large components and long antennas
85Sending Out An Emergency Call - Voice
- You may use any radio at any time to get help
during an emergency - Break Break followed by your call sign to
interrupt a radio conversation in progress - Mayday Mayday Mayday followed by your call sign
to call on a clear frequency
86- Radio Merit Badge
- Ten-minute Break NextEmeregency
Communications Procedures
87Radio Merit Badge
- Session IV
- Emergency Communication Procedures
88Avalanche Beacons
- Transmits on 475 Khz
- Range up to 100 yards
- Requires some practice
- Cost - 300 and up
89Global Positioning System (GPS)
- 24 orbiting satellites transmit signals on the
1700 Mhz band - Satellites cannot track a person they only
send signals down
90Global Positioning System (GPS)
- Handheld GPS receiver shows Lat / Long reading
accurate to within a few yards - Could be shut down in extreme national emergency
- Cost - 100 and up
91Global Positioning System (GPS)
From the BSA Field Book, page 78
Global positioning system (GPS) receivers allow
travelers to pinpoint their locations, but they
are no substitute for mastering the use of maps
and compasses.
Your greatest emergency preparedness tool is
your mind. You still need to take the
Orienteering class
92Family Radio Service (FRS)
- FRS is a radio service in the UHF band for use by
the general public. - 14 channels ½ watt of output power
- Range limited to couple of miles line-of-sight
- No license required
- General Mobile Radio Service (GMRS)
- 22 channels higher output power
- Range up to 10 miles, line of sight
- License required
93FRS GPS Garmin Rino
- GPS receiver for determining your location
- FRS radio for voice communications
- Map showing your location and your buddys
location - Radio sends out periodic location data burst on
voice channel - Cost 250 to 400 depending on features
94Personal Locator Beacon (PLB)
PLB is the newest generation of emergency
beaconsDetected by geostationary satellites
instantlyRescue forces contacted in 2 15
minutesLocation fix within 2.5 miles without
GPS, or under 100 yards with GPS
Geostationary Sats
Polar Orbit Sats
95How Rescue Forces Are Notified
96Cell Phones In The Wilderness
From the BSA Field Book, page 78
Likewise, wireless telephones can be a
convenient means for groups to contact emergency
response personnel, but phones are useless if
they malfunction, the batteries are exhausted, or
distance and terrain prevent clear reception of
signals. Frivolous use of wireless phones
can seriously diminish solitude, independence,
and challenge in the outdoors. If you carry a
portable telephone, stow it deep in your pack and
bring it out only for emergency calls.
97Cell Phones In The Wilderness
BSA Field Book, p78
- Emergency preparedness tool
- Keep packed away and
- turned off
- Carry extra battery
- Respect serenity of outdoors
- Just because Scoutmaster has one doesnt mean
YOURE prepared!
98Cell Phones In The Wilderness
From the chapter entitled Avoiding the Outdoor
Emergency
Know how to increase your phones signal
strength by pointing the antenna up, moving into
a clearing, gaining elevation, and turning your
body (you might be obstructing the signal)cell
phones should never replace preparedness.
Wilderness Survival Merit Badge Book, p 15
99That Old Cell Phone
- Dont throw away your old cell phones
- Any Cell Phone Can Reach 911-even one thats not
activated - Weakness 911 operator may not be able to call
you back if you get disconnected during a call
100Cell Towers
101Cellular During a Disaster
- Weakness
- During widespread emergency, Such as 9-11 or the
2005 London train bombings, cell systems busy out
and become unusable.
102Cellular During a Disaster
Lighten The Load On The System
- PTT Call
- More efficient use of resources because it allows
you to talk with multiple people at once - Text Message
- Will get through when a voice call wont because
its a quick data burst
103Cellular During a Disaster
- Voice calls would not get through when cell
system jammed - Text messages got through
104Dialing 911 From a Cell Phone
- Your cell site gets a directional and distance
fix, then nearby sites do the same
- If your phone has GPS, your lat / long is reported
- Map of your location appears on 911 operators
screen
Your site
- Entire position fix process takes 15 to 30 seconds
105Location Services
- Cell system can locate a phone
- All share location info with police during
emergency - Sprint / Nextel and Verizon both offer family
locator plans
106No Cell Coverage and Lost !
- Family of 7 Snowbound in RV
- No Cell Phone Coverage
- No Radio Comm
107Wilderness Protocol
- A set of standard operating procedures for use in
the wilderness during emergencies - Frequencies
- 146.520 Mhz FRS ch 1, no privacy code
- Times
- First 5 minutes of every quarter hour
108Real-Life Scenarios
- Read scenario
- Discuss how to use radio to summon help
- Elect a radio operator
- Act out your scenario in front of class
109- Radio Merit Badge
- Lunch Break NextRadio Technology In Our
Modern World
110Radio Merit Badge
- Session V
- Radio Technology In Our Modern World
111Radio Direction-Finding (RDF)
- Used to locate
- Tagged wildlife
- Downed aircraft
- Life rafts
- Stolen cars
112NOAA Weather Radio
- Operated by the National Oceanic and Atmospheric
Administration - Hundreds of VHF radio transmitters (most 1000
watts) cover 95 of the US population - Seven frequencies from 162.400 Mhz to 162.550 Mhz
- Modern receivers have Specific Area Message
Encoding (SAME)
113Wireless Internet (WiFi)
- Many coffee shops and restaurants offer free
wireless internet access - 2400 Mhz band (2.4 Ghz)
- Short range (150 feet)
- Some cities (like Addison) offer city-wide
wireless internet access
Dunn Brothers Coffee Addison, TX
114Wireless Internet Phone
- Sends voice calls over the internet
- Can call another internet phone or conventional
phone - Works within WiFi coverage area
- Worldwide voice calls very cheap or FREE
160
www. Skype . com
115High Definition Television - HDTV
- Broadcast Standards
- 480 I (ordinary TV)
- 720 I
- 720 P
- 1080 I
- 1080 P
I means interlaced
P means progressive
116Mobil Trak
- Detects what radio station you are listening to
by picking up stray signals leaking out of your
car radio - Logs listener numbers
- Flashes audience specific ads on jumbotron
117On-Star
- Weaknesses
- Runs off cars battery (new units have reserve
batt.) - Privacy Policy
118Trivia Question
- Q. How many children are abducted in Texas each
DAY? - 1
- 3
- 12
- 164
119Trivia Question
- Q. How many children are abducted in Texas each
DAY? - 164
- (10,000 abductions per year in Texas)
120ABDUCTION !
- Predator tried to abduct boy
- Boy uses cell phone camera to snap photos of
predator and car license plate - Boy turns photos over to police
- Predator arrested the next day
Dallas Morning News Saturday, August 2, 2003,
page 15A
121ABDUCTION !
122ABDUCTION !
- FACTS OF THE CASE
- Abducted at gunpoint from bus stop before school
by illegal alien - Driven 20 miles away
- Tied up in the woods to be held for ransom
- Cut duct tape with safety pin to free himself
- Found a farm worker with a cell phone
- Called his step father
- Police tracked location of cell phone
- Abductor arrested
123ABDUCTION !
- FACTS OF THE CASE
- Abducted at gunpoint from Sonic
- Stuffed in trunk of car
- Used his own cell phone to call his father, who
then called police - Police tracked location of cell phone
124ABDUCTION !
- FACTS OF THE CASE
- Abducted girl waited until her captor went to
sleep - Quietly used his cell phone to send a text
message to her mother - Police tracked location of cell phone
125ABDUCTION !
- NO CELL PHONE
- UNTRACEABLE !
126ABDUCTION !
Police tracked location of last cell phone blip
127Cellular Locator Services
- Sprint Verizon
- Family Locator Chaperone
- 10 Extra 10 Extra
- See childs location See childs location
- on web or parents phone on web or parents
phone - Parents phone requires Optional Child
- data plan (15 extra) Zone service (20)
- Parent and child can More extensive
- locate each other wireless network
- if both subscribe to Family
- Locator service
-
Prices and services surveyed May 2007
128Wireless Devices In School
- Texas Education Code (Section 37.082) gives
schools blanket authority to ban all radio
frequency devices, or paging devices Law
originally enacted over 20 years ago to combat
campus drug trafficking - Schools can legally
- Ban possession on school property (any time, day
or night) - Ban possession at off campus locations during
nights and weekends if the student is doing
something school related - Seize device on sight
- Charge 15 for return of device
- Dispose of device if not claimed within 30 days
129Wireless Devices In School
What exactly is a paging device anyway?
In this section, "paging device" means a
telecommunications device that emits an audible
signal, vibrates, displays a message, or
otherwise summons or delivers a communication to
the possessor.
But there is good news
130Wireless Devices In School
Good News Senate Bill 11 takes away authority
of schools to ban Amateur Radio. (New law takes
effect Sept 1, 2007)
In this section, "paging device" means a
telecommunications device that emits an audible
signal, vibrates, displays a message, or
otherwise summons or delivers a communication to
the possessor. The term does not include an
Amateur Radio under the control of an operator
who holes an Amateur Radio Station License issued
by the Federal Communications Commission.
131GPS Shoes
- Targeted at children and elderly persons
- Available in several styles, but not brand names
- Cost 325 plus 20 monthly monitoring
www . IsaacDaniel . com
132Wireless Amber Alerts
- Sent via FREE text message to your wireless phone
- Specific to your area
- Unsubscribe any time
- Future Pictures
Date/time May 14, 2007 24337 PM Name Parker,
Dakota ID4083 Message AMBER ALERT Garland,
TX VEH 04 Silv Ford Foc TX X01-VXG C 7
W/M 4F 60L BROWN / BROWN C 5 W/F 3F 40L
BROWN / BLOND SUSP 36 W/M 5F7 220L BROWN / BROWN
CALL 972-272-8744
www . wirelessamberalerts . org
133Next Generation 911 (NG-911)
- Dispatchers will be able to receive from a
wireless phone - Text messages
- Photos
- Video clips
- Live streaming video
- Location map
- And forward them to patrol cars with a few
keystrokes
The nations NG-911 system is currently in
development stages 3 to 5 years in the future
134Radio Frequency Identification - RFID
- Wireless Barcodes
- Low Frequency Animal Tags (and Human Tags),
Marathon Events, Mobile SpeedPass - High Frequency Libraries, Clothing Stores
- UHF Consumer Products, TollTags
135How RFID Works
136RFID Chips In Retail Products
- Wireless Bar Code technology
- Cost 5 cents each
- Privacy concerns?
Protesters outside Wal Mart headquarters in
Dallas, October 2005
137RFID Chips In Retail Products
- Each item on the shelf has its own RFID chip
inside package and warning label on the outside - Kill command when item leaves the store
138RFID Cards / Student IDs
- Student ID Cards
- Read range up to 30 feet (much more with
directional antenna) - 2K of memory
- Susceptible to viruses
- HUGE privacy issues
139RFID License Plates
- Powered RFID devices have much longer range
- Texas attempted during 2005 Legislative session
to put RFID chips inside windshield stickers,
vehicle license plates and drivers licenses - California proposes ban
140RFID For Humans
- Wireless Medic Alert Bracelet
- Contains a 16-digit number
- Range only a couple of inches
- Medical personnel pull up patient information on
secure internet site
www. Verimedinfo. com
141- Radio Merit Badge
- Ten-minute Break NextAfternoon Field
Activities
142Special Thanks To
- Circle 10 Counsel Boy Scouts of America
- www.circle10.org
- Ham-Com
- www.hamcom.org
- National Association For Amateur Radio
- www.arrl.org
143Special Thanks To
- Communications Specialists
- (for the direction-finder)
- www.com-spec.com
- Back Country Access
- (For the avalanche beacons)
- www.bcaccess.com
- Buddipole, Inc.
- (For the portable antenna)
- www.buddipole.com
144Thank You !
- James Alderman, KF5WT
- 972-418-1472 (Home)
- 972-977-1114 (Wireless)
- kf5wt_at_verizon.net