2021 Crash Course Part 3 – Hardware

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Do you want to get started with scanning or brush up on basics in the new year?

In this episode, Phil goes through a rapid-fire rundown of trunking and trunked systems.

This is part 3 of this 2021 crash course.



What You Will Learn in This Week’s Podcast:

  • Antennas need to be matched, or resonant on the frequency or frequencies you need to monitor.
  • The lower the frequency, the larger the wavelength, which requires a longer antenna.   The higher the frequency, the shorter the wavelength, and thus the shorter the antenna.
  • Some antennas can cover a wide bandwidth or even multiple bandwidths.
  • A discone antenna works reasonably well across just about every frequency we might want to listen to, but there is no gain.
  • Discone antennas are omnidirectional and vertically polarized.
  • Yagi antennas are directional antennas with high gain over a small bandwidth, consisting of a boom, a reflector, and a driven element.
  • After your antenna, you need good quality coax cable to deliver the frequencies your antenna is picking up into your radio.
  • As your frequency increases, the amount of loss in coax cable also increases.
  • The best way to combine multiple scanner to a single antenna is with an active multicoupler because it uses isolated ports.
  • You can use filters if you have nearby interference that is preventing you from hearing what you want to listen to.

More info:

Are you looking for your first scanner radio?

Download our new e-guide, “5 Thinks You Need to Know Before Buying Your First Scanner”.   This free PDF is about 30 pages long and has 5 things you should look for, plus a few extra bonus items to make sure you make an educated purchase.

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