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  2. J-pole antenna - Wikipedia

    en.wikipedia.org/wiki/J-pole_antenna

    The J-pole antenna is an end-fed omnidirectional half-wave antenna that is matched to the feedline by a shorted quarter-wave parallel transmission line stub. [5] [1] [6] For a transmitting antenna to operate efficiently, absorbing all the power provided by its feedline, the antenna must be impedance matched to the line; it must have a resistance equal to the feedline's characteristic impedance.

  3. Whip antenna - Wikipedia

    en.wikipedia.org/wiki/Whip_antenna

    If it was infinitely thin the antenna would have an infinite input impedance, but the finite width gives typical, practical half wave whips an impedance of 800–1,500 ohms. These are usually fed through an impedance matching transformer or a quarter wave stub matching section (e.g. the J-pole antenna). An advantage is that because it acts as a ...

  4. Inverted vee antenna - Wikipedia

    en.wikipedia.org/wiki/Inverted_vee_antenna

    This simplified arrangement has several advantages, including a shorter ground distance between the ends. For example, a dipole antenna for the 80 meter band requires a ground length of about 140 feet (43 m) from end to end. An inverted vee with a 40-foot (12 m) apex elevation requires only 115 feet (35 m).

  5. Folded unipole antenna - Wikipedia

    en.wikipedia.org/wiki/Folded_unipole_antenna

    The folded unipole antenna was first devised for broadcast use by John H. Mullaney, an American radio broadcast pioneer, and consulting engineer. [2] It was designed to solve some difficult problems with existing medium wave (MW), frequency modulation (FM), and amplitude modulation (AM) broadcast antenna installations.

  6. Umbrella antenna - Wikipedia

    en.wikipedia.org/wiki/Umbrella_antenna

    The outer end of each radial wire, sloping down from the top of the antenna, is connected by an insulator to a supporting rope or cable anchored to the ground; the radial wires can also support the mast as guy wires. The radial wires make the antenna look like the wire frame of a giant umbrella (without the cloth) hence the name.

  7. Paid biweekly? Here's when you could get an 'extra' paycheck ...

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    If your first paycheck is Jan. 10, here's what to expect. If your first paycheck of 2025 falls on Friday, Jan. 10, you will receive three paychecks in May: May 2, May 16 and May 30 − and October ...

  8. People's Panic Meter + top waiver wire players for Week 4 - AOL

    www.aol.com/sports/peoples-panic-meter-top...

    Behrens also provides his top five waiver wire pickups for Week 4. The 'People's Panic Meter' is back and boy there is quite a bit of panic after Week 3. Matt Harmon and Andy Behrens do their best ...

  9. Utility pole - Wikipedia

    en.wikipedia.org/wiki/Utility_pole

    Telegraph pole with spars, insulators and open wires on a now decommissioned Railway Pole Route, Eccles Road, Norfolk, United Kingdom. A pole route (or pole line in the US) is a telephone link or electrical power line between two or more locations by way of multiple uninsulated wires suspended between wooden utility poles. This method of link ...

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