• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:
    https://forums.radioreference.com/rants/224104-official-thread-live-audio-feeds-scanners-wait-encryption.html

Am of FM

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Gilligan

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Without going into too much detail, there are two major bands on scanner that are in AM mode: the VHF aircraft band and the UHF military aircraft band (found on fewer scanners). Both are AM mode. The VHF band is 108 - 136 MHz and the mil band is 225 - 380 MHz. Some high-end scanners pick up shortwave as well, which is AM mode from 0 - 28 MHz. And of course the CB radio band is from 26.965 - 27.405 MHz and is AM for the most part. Just about everything else is FM, either regular FM, wideband FM (tv broadcast), or narrowband FM (newer systems). Hope that helps.
 

nexus

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DeS, the MODE is not always frequency dependent.

Mode is AM, FM, NFM, WFM, SSB, CW, FSK, RTTY and so on...
 
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