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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