Transceivers, power supplies, and basic station setup and grounding concepts for amateur radio operators.
34 cards · basic cards · AI-written, checked twice. Edit anything.
- What is a transceiver?
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A radio device that both transmits and receives signals, combining a transmitter and receiver in one unit.- Define simplex communication.
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Radio communication where one station transmits and another receives, taking turns, using the same frequency.- Define duplex communication.
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Two-way simultaneous communication between two stations using different frequencies, one to transmit and one to receive.- What does RF output power measure?
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The amount of radio frequency energy, measured in watts, that a transceiver produces on transmission.- What does frequency stability mean in a transceiver?
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The ability of a transceiver to maintain its transmitted and received frequency without drifting.- What is the primary purpose of a power supply in a ham radio station?
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To convert AC line voltage into stable DC voltage at the correct amperage to power the transceiver.- What is ripple in a DC power supply?
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A small AC voltage variation that remains in the DC output, measured in millivolts peak-to-peak.- Why must a power supply have adequate current capacity?
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To prevent voltage sag and overheating when the transceiver draws peak current during transmission.- What is a fused power supply?
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A power supply with a built-in fuse or circuit breaker to protect against overcurrent and equipment damage.- What is a ground rod?
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A metal rod driven into the earth to establish a low-resistance connection to the ground for electrical safety.- How deep should a ground rod typically be driven?
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At least 8 feet deep, or deeper in dry soil, to ensure good contact with moist earth.- What is bonding in ham radio grounding?
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Connecting all metal parts and equipment frames together with heavy wire or straps to ensure they are at the same electrical potential.- What gauge wire is typically used for station grounding?
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Number 6 AWG or larger copper wire, chosen for low resistance and durability.- What is a coaxial cable and why is it used?
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A two-conductor cable with the inner conductor surrounded by a shield, used for feedlines to reduce RF loss and interference.- What does characteristic impedance mean for a feedline?
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The ratio of voltage to current along a transmission line, typically 50 ohms for ham radio coax.
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