Technician: Monitoring SWR

Where should an in-line SWR meter be connected to monitor the standing wave ratio of the station antenna system? [T4A05] A. In series with the feed line, between the transmitter and antenna B. In series with the station’s ground C. In parallel with the push-to-talk line and the antenna D. In series with the power …

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Technician: Switch Components

Amplifier Components

Which of these components can be used as an electronic switch or amplifier? [T6B03] A. Oscillator B. Potentiometer C. Transistor D. Voltmeter Piece of cake this one is….  Lets go through the false answers first, just to make sure. A. Oscillator.  By definition, an oscillator simply takes a signal and, well, oscillates it.  on/off, high/low, …

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Technician: Spin Fading

What causes spin fading when referring to satellite signals? [T8B09] A. Circular polarized noise interference radiated from the sun B. Rotation of the satellite and its antennas C. Doppler shift of the received signal D. Interfering signals within the satellite uplink band Well, to start with, I suppose we should define “spin fading.”  Spin fading …

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Technician: Parallel Dipole

Which of the following describes a simple dipole mounted so the conductor is parallel to the Earth’s surface? [T9A03] A. A ground wave antenna B. A horizontally polarized antenna C. A rhombic antenna D. A vertically polarized antenna Lets recall what we mean when we talk about an electromagnetic field being “polarized.”  The direction of …

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Technician: Mega vs. Giga

If a frequency readout shows a reading of 2425 MHz, what frequency is that in GHz? [T5B13] A. 0.002425 GHZ B. 24.25 GHz C. 2.425 GHz D. 2425 GHz The best way to figure this out is to review our metric prefixes.  If you’re into computers at all, you already use “Mega” and “Giga” and …

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