Mobile Radio Communications
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Transcript of Mobile Radio Communications
Mobile Radio CommunicationsA Brief Introduction
Who Am I
Lars R. Noldan
Callsign: W9ZEB
Website: http://w9zeb.org
Twitter: @Absenth
Please Ask Questions.
Covered Topics
Learn What Radio Services Exist
Strengths/Weaknesses For Each
Common Use Cases
Special Techniques
Radio Services
CB Radio
FRS/GMRS Radio
Business Band Radios
Ham Radio
CB Radio Strengths
Reasonably Inexpensive
Easy To Operate
Wide Spread Use
No License Required
With a Good Antenna Range Is ~12 Miles
CB Radio Weaknesses
11m Band Requires Large Antennas
Hand Held CBs Leave a Lot to be Desired
AM is Prone to Noise
Many of The Receivers Are Poorly Made
40 Channels
FRS/GMRS Radio StrengthsNo License Required (FRS)
License Easy to Acquire (GMRS)
Very Inexpensive (Hand Helds)
Light Weight, Portable, Use Standard Batteries (AA)
Easy To Operate (14 Channels)
FM Operation
FRS vs GMRSFRS = Low Power, Not Legal to Replace Antenna
GMRS = Requires an FCC License (fee and registration only)
GMRS Can Use Repeaters on GMRS Only Frequencies
GMRS Can Replace Antennas
GMRS Can Use More Power
FRS/GMRS Radio Weaknesses
Very Low Power
Very Poor Antennas
Results in Exceptionally Short Range
Not Well Suited For Use Inside a Vehicle (Signal Loss)
14 Channels Only (FRS) / 23 Channels (GMRS)
Business Band Radio Strengths
Very High Quality Hardware
Licensed Equipment, Not Users
Can Include Repeater System Use
Easy to Operate
Can Have Advanced Digital Features
Business Band Radio Weaknesses
Very Expensive Hardware (Of Leasing Fees)
Limited to Your “Group”
Batteries Are Usually Proprietary
May Require Repeaters to Function
Ham Radio StrengthsFrom Local to Global Communications
Power up to 1500w
Wide Range Of Equipment Options
Global Network of Operators
Generally Extremely High Quality Equipment
Sky is The Limit
Ham Radio Weaknesses
License Required (Includes a Test)
Equipment Can Be Very Expensive
Operation Requires Knowledge (Ease of Use)
Rules And Regulations Can Be Restrictive.
Common Use Cases
Caravan / Trip Communications
Tail / Lead Truck
Spotter / Driver
Within a Region (BigBend)
Calling For Help / Assistance
Repeater Systems
APRS - Amateur Position Reporting System
Digital Modes - HF
Satellite Communications
Questions?
The Answer is 42!