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April 23, 2024 14 mins

Digital modes, like P25, NXDN, DMR and others will use FDMA, TDMA, or both allow multiple transmissions to share a single frequency at the same time.

FDMA or Frequency Division Multiple Access divides a current carrier frequency into multiple parts, allowing for multiple users to operate on the same time on the same frequency.

TDMA or Time Division Multiple Access divides a current transmission over time, allowing for 2 or more users to share a the same frequency at the same time, depending on the digital protocol that is used.

The ability for these digital transmissions to place multiple users on the same frequency allows for better management of the limited radio spectrum resource.

Not only does this allow for more frequencies to be distributed, but allows for end licenses to do more with a single radio license.

Learn the differences between FDMA and TDMA in this week's podcast.

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🛒  Check out our new Merch!

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Squelchy opened his own store selling Scanner School merchandise!

Show your love for the Scanner Radio Hobby and Scanner School.

Pick up a hat, shirt, bag, or mug and help support Scanner School.

🔗 https://scannerschool.myspreadshop.com/

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🎙 Join our new Scanner Radio Community

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Join our FREE Discord server and connect with other Scanner Radio Users!

By using Discord, a free, multi-platform community portal, you can now be part of the Scanner Radio Discussion!

Chat real time, share photos, ask questions, and give feedback to other's in chat.

🔗 https://www.scannerschool.com/discord

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🎓 Check out our online courses

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Our free Software Defined Radio course will have you up and running with a SDR in a weekend.

Upgrade to our Advanced Course, and learn how to setup SDR Software like a pro.

🔗 https://www.courses.scannerschool.com

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⚠️ I want to answer your questions

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I am always looking to answer your scanner radio question.

If you have a question you'd like answered, please leave me a voicemail with your question:

📞 516-308-2885

🔗 https://www.scannerschool.com/ask

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🔗 Join our Patreon program at https://www.scannerschool.com/patreon

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