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During an event Cell Towers get overloaded
Basic Phone Service may not work.
Internet connectivity may no longer be available.
These technologies rely on Infrastructure that might not exist
Reasons For This Class
CB Radio cont.
Cons
Help may be questionable
Signals don’t go very far
11m band requires large antennas
Hand Held CBs leave a lot to be desired
Only 40 channels
FRS Radios
Pros
No license required
Very Inexpensive
Light weight & Portable
Run on standard batteries
Easy to Operate
FRS Radios Cont.
Cons
Only 0.5w
Poor antenna quality
Only 14 channels
Terrible range
Questionable help
GMRS Radios
Pros
High Quality Equipment
Overlap with Unlicensed FRS frequencies
Higher power (Up to 50w)
Can run repeater systems
Easy to Operate
GMRS Radios Cont.
Cons
$80 License Required
23 Channels available
Expensive Equipment
Limited Group of licensees
Licensed Business Radios
Pros
Extremely High Quality Hardware
No License Required
Repeater Systems Included
Easy to Operate
Licensed Business Radios
Cons
Monthly Equipment Rental fee
Limited to your “group”
Batteries are usually propriatary
May Require Repeaters to work
Amateur Radio (Aka Ham)
Pros
From Local to Global Communications
Power up to 1500w
Wide range of equipment options
Global network of operators
Ham Radio Cont.
Cons
Test Required for licensing
Expensive equipment
Difficult to Operate
Not everyone is licensed
Rules & Regs. can be restrictive.
So What’s It All Mean?
Bands? Like Metallica?
Quality Antenna? Whiskey Tango Foxtrot?
What Is a Repeater or Simplex?
You Said Something About a Test?
Bands? Like Metallica?
CB - 11 Meter Band (27mhz)
FRS / GMRS - 70cm Band (465mhz)
Business Band Radios - Runs the gambit.
Ham Radio - HF / VHF / UHF (1.8mhz to 10ghz)
Quality Antenna? WTF Man?
Generally a quality antenna starts as a quarter wave.
This means on the 11m band, you need 102” (8ft) of antenna.
On the 2m band, you need about 19”
on 70cm you need only 7”
What is a Repeater?
A Repeater is an awful lot like a cell phone tower.
It is a radio, with a very high antenna that retransmits signals it receives.
Repeaters generally increase the range available due to significantly improved line of sight.
You Said Something About a Test?
Please see the handout “How to become a Ham”
License Tests are usually $14
Your License needs to be renewed, for free, every 10 years
The test is not difficult.
Links
http://w9zeb.org
http://www.arrl.org
http://ingunowners.com
http://qrz.com
Image Credits
http://www.flickr.com/photos/kayfox/410147504
http://www.flickr.com/photos/brighton/2153602543/
http://www.flickr.com/photos/midnightcomm/1429984238
http://www.flickr.com/photos/pjmurphy/373863765/
http://www.flickr.com/photos/rescuedog/481592862/
http://www.flickr.com/photos/badwsky/78406047/
http://ham-shack.com/images/repeater_diagram.jpg
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