161 - Crash Course 2021 Pt 2 - Trunking

Free SDR Training! Check out our new course, "The Ultimate Beginner's Guide to Software Defined Radios: Everything you need to know to get started with SDR in an afternoon."   You can enroll for free at https://courses.scannerschool.com --------------------------------------------------------------- Get started with Scanning in 2021 Our "2021 Scanner Radio Crash Course" Webinar will be January 26, 2021 at 8pm Eastern US time.  Register for the live webinar or catch the replay at www.scannerschool.com/2021 This webinar will get you started or up to speed on Scanning for 2021.  --------------------------------------------------------------- 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 Trunk Systems. This is part 2 of this 2021 crash course. What You Will Take Away from This Week's Podcast: Trunking means that multiple users share pooled frequencies, allocated on an as-needed basis. Each talk group is assigned a frequency to use, which is more efficient than conventional systems. These systems can be linked together into networks. The control channel can be considered air traffic control or the traffic cop at an intersection; when a user keys in they request a voice channel, and when it's no longer in use, everyone moves back to the control channel. Types of trunking include EDACS, Motorola Type II, P25, DMR, LTR, NXDN, and more. Rebanding came about because NexTel purchased ESMR frequencies, which resulted in cell phone band frequencies moving up 15MHz and public safety bands moving down 15MHz. Simulcast is when you have multiple transmitter locations keying up at the same time and broadcasting the same information over the same frequencies.  All session notes with links to the items we talked about an be found on our website at www.scannerschool.com/session161 --------------------------------------------------------------- Would you like 1 on 1 help? If you need help with your scanner and are looking for some one on one tutoring, I'd love to help you out.  Visit www.scannerschool.com/consulting to book your one hour appointment today! Help support Scanner School You can help support Scanner School by visiting our support page at www.scannerschool.com/support