Two-Way Radio Basics 101. I Got My License, Now What?! How the pieces fit together. How to communicate effectively. How to program your radio. Presented by the Saratoga Amateur Radio Association. Presentation Topics. Why amateur radio Radio equipment choices Repeaters
I Got My License, Now What?!
Presented by the
Saratoga Amateur Radio Association
How to sound like a professional.
Shorthand for “De-sensitize”.
Your radio, in the presence of a strong signal on a nearby frequency, may seem to go deaf.
Even though you don’t hear the other signal, it overloads some of the circuitry in your radio, such that it can’t properly process the desired signal.
The solution is to move away (physically) from the other signal source.
What are all the knobs and buttons are for?
How do you program it?
Frequency or Channel Selector
Push-To-Talk (PTT) Switch
Speaker & Microphone
Unlike most FRS radios, the speaker and microphone on the HT are two separate units.
with better performing units
It’s NOT a handle!!
ALWAYS carry spare batteries!
Only step 1 is required to just listen.
That’s as complicated as it gets!
CTCSS – Continuous Tone Coded Squelch System
Superimposes a very low frequency audio tone on the transmitted signal. This audio tone is frequently referred to as the PL Tone or the PL. There are 39 CTCSS tone frequencies.
DCS – Digital Code Squelch
Superimposes a stream of digital data on the transmitted signal. There are 104 DCS codes.
CTCSS and DCS are two different methods of accomplishing the same thing. They make it possible for the receiver to remain muted until the “right” audio tone (for CTCSS) or digital data (for DCS) is present on the received signal.
Think of it like a password to get into the system.
DTMF – Dual Tone Multi-Frequency
A system that uses eight different audio tones to create 16 tone-pairs representing the characters 0 thru 9, A thru D , * and #. Used for touchtone telephone dialing and other control functions.
PL – Private Line
PL is a Motorola trademark. CTCSS is a generic name for the same (or similar) implementation.
PTT – Push to talk or Press to talk.
The name of a switch on the HT that that changes the mode from receive to transmit.
VFO – Variable Frequency Oscillator
The circuitry that controls the frequency on which the radio receives and transmits (e.g., 146.655 MHz).
Duplex – An operating mode where a station receives and transmits simultaneously.
Simplex – An operating mode where only one station transmits at a time.
Doubling – A term used to describe the abnormal situation where two or more stations are transmitting at the same time. Usually, none are heard clearly.
146.655 MHz, - offset, PL 114.8 Hz
146.985 MHz, - offset, PL 114.8 Hz
145.230 MHz, - offset, PL 100.0 Hz
146.115 MHz, + offset, PL100.0 Hz