Not everyone wants another antenna on their car so we offer various types and mounting options. Getting the antenna out from under the steel roof of your car or truck will provide a huge improvement. For mobile scanners we urge you to mount a mobile antenna somewhere on your vehicle. Or region that uses a common band (such as 800 MHz trunking or 460 MHz UHF) will pull in signals you never dreamed of. Aiming a yagi (beam) antenna at a station

If you want to really improve performance on a single radio band, check out our professional base station antennas, either omnidirectional or directional for most receiver gain. For home or office scanners we recommend a base station antenna, such as the Discone for all-band monitoring. What are PL and DPL (private line & digital private line) or CTCSS and DCS sub-audible tone codes?Īntennas- There is no better way to improve reception, whether for base or mobile scanning, then by adding an outside antenna. Many agencies also used MDT's (mobile data terminals), the computers in the patrol cars as well as cellular and NEXTEL phones for private communications. There are also a few non-standard digital radio systems that are not monitorable at this time such as EDACS ProVoice, M/A-COM OpenSky and European Tetra. A few agencies operate in encryption full time. You must buy a digital scanner (such as the Bearcat 296 or 796) or a digital-ready scanner (theīearcat 250 or 785 which accept a digital card) in order to monitor digital communications.ĭigital scanners decode APCO-25 non-encrypted transmissions automatically (encrypted communications cannot be decrypted). There is no way to upgrade an older or non-digital scanner. Older public safety radio systems are often being replaced with the new digital systems.

Just like your cell phone, a digital two-way radio system converts voice into ones and zeros and transmits this data to another radio which decodes the information so the voice communication (sometime sounding a bit robotic) is heard on the other end.

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