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Fun With Handie - Talkies. Repeaters, Radio Waves, and Using your Handie - Talkie. Radio Waves. Radio Waves: Length or Frequency 2 meters (6 feet 7 inches) or 150 million cycles per second 2 meter band goes from 144 MHz to 148 MHz 440 MHz or 0.682 meters (2 feet 3 inches)
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Fun With Handie-Talkies Repeaters, Radio Waves, and Using your Handie-Talkie
Radio Waves Radio Waves: Length or Frequency 2 meters (6 feet 7 inches) or 150 million cycles per second 2 meter band goes from 144 MHz to 148 MHz 440 MHz or 0.682 meters (2 feet 3 inches) 440 band goes from 420 MHz to 450 MHz
Local Two Way Radio ReceivingTransmitting Radio Waves Radio Waves Sound Sound
Simplex and Duplex Simplex Radio Waves Go Directly Between Two Radios Both Radios Are on the Same Frequency Duplex Radio Waves Go Through a Repeater Radio Transmits at one Frequency and Receives at Another The Frequency of the Repeater is theTransmit Frequency
Repeater Offsets • The Difference between the Receive Frequency and the • Transmit Frequency is Called the Offset • For 2 meters the offset is usually 0.6 MHz • For 440 MHz the offset is usually 5.0 MHz • 442 – 445 MHz + (California repeaters start at 440 MHz) • 447 – 450 MHz -
Repeaters and Radio Waves146.85 MHz 146.25 MHz Boone Repeater Handie-Talkie
Repeater Tones Used to Block Signals to the Repeater You Set on Your Radio Sub-Audible (you cannot hear them but the repeater can) Getting More Common in Iowa Boone Club Repeater no - Ames Club Repeater no Des Moines Repeaters yes 114.8 Hz for 2 meters 151.4 Hz for 440 MHz
Repeater Etiquette • Putting out call – KBØMPL, KBØMPL monitoring, here is KBØMPL • Calling someone, the other person’s call comes first - WØFS KBØMPL • Interrupting a QSO – MPL, Break With an emergency - Break Break • Leave a moment or two before replying when in a QSO – for breakers
Thank You for ComingI Hope You Will Get on the AirAnd Take Over the Repeater