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  2. SWR meter - Wikipedia

    en.wikipedia.org/wiki/SWR_meter

    An SWR meter does not measure the actual impedance of a load (the resistance and reactance), but only the mismatch ratio. To measure the actual impedance requires an antenna analyzer or other similar RF measuring device. For accurate readings, the SWR meter itself must also match the line's impedance (typically 50 or 75 Ohms).

  3. Standing wave ratio - Wikipedia

    en.wikipedia.org/wiki/Standing_wave_ratio

    Checking the SWR is a standard procedure in a radio station. Although the same information could be obtained by measuring the load's impedance with an impedance analyzer (or "impedance bridge"), the SWR meter is simpler and more robust for this purpose. By measuring the magnitude of the impedance mismatch at the transmitter output it reveals ...

  4. Antenna analyzer - Wikipedia

    en.wikipedia.org/wiki/Antenna_analyzer

    An antenna analyzer measuring SWR and complex impedance of a dummy load. MFJ-269, MFJ Enterprises Inc. An antenna analyzer or in British aerial analyser (also known as a noise bridge, RX bridge, SWR analyzer, or RF analyzer) is a device used for measuring the input impedance of antenna systems in radio electronics applications.

  5. Radio transmitter design - Wikipedia

    en.wikipedia.org/wiki/Radio_transmitter_design

    Commonly an SWR meter and/or directional wattmeter are used to check the extent of the match between the aerial system and the transmitter via the transmission line (feeder). A directional wattmeter indicates forward power, reflected power, and often SWR as well.

  6. List of amateur radio transceivers - Wikipedia

    en.wikipedia.org/wiki/List_of_amateur_radio...

    As an "all-band" transceiver, the TS-2000 offers a maximum power output of 100 watts on the HF, 6 meters, and 2 meters bands, 50 watts on 70 centimeters, and, with the TS-2000X or the optional UT-20, 10 watts on the 1.2 GHz or 23 centimeters band. The (American version) radio's main receiver covers 30 kHz through 60 MHz, 142 MHz through 152 MHz ...

  7. Malfunctioning security bollards were removed from Bourbon ...

    www.aol.com/malfunctioning-security-bollards...

    Security barriers in New Orleans that were intended to protect pedestrians from vehicles but at times malfunctioned were removed for replacement before an attacker drove a pickup truck into a ...

  8. Antenna tuner - Wikipedia

    en.wikipedia.org/wiki/Antenna_tuner

    Cross-needle SWR meter on antenna tuner. It is a common misconception that a high standing wave ratio (SWR) per se causes loss. [3] A well-adjusted ATU feeding an antenna through a low-loss line may have only a small percentage of additional loss compared with an intrinsically matched antenna, even with a high SWR (4:1, for example). [21]

  9. Here's Why American Cheese Can't Legally Be Called Cheese - AOL

    www.aol.com/lifestyle/heres-why-american-cheese...

    A fixture at any fast food restaurant or backyard barbecue is American cheese. These orange, plastic-wrapped slices are unparalleled in terms of meltability. For many, when it comes to making a ...

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