• 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

Universal Scanner?

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KeepaX

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Looking for somthing that does everything...picks up new police/fire freq and local Buisness radios like taco bell, walmart ect. is there a such thing? if so what.?
 

Rt169Radio

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CoolCat

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Almost every scanner can pick up anything from 25-500 mhz ,25-800mhz or 25-1300 mhz and digital transmissons.
Not true. All scanners sold in the US (except government versions) have cellular frequencies blocked out, and very few scanners on the market have "continuous band coverage" in general. Almost every scanner on the market has several frequency ranges/bands within their overall "range" that cannot be received. Only the higher-end scanners can receive "digital transmissions", most scanner models are analog-only.

There are a couple "wide-range receivers" by Icom and AOR that have true continuous band coverage. While these models do "scan" (slowly), they are generally not considered to be "scanners" as we know them. Also, these models cannot follow a trunked system or decode P25 digital.

The only thing that scanners can not pick up are encrypted transmissons.
Also not true, there are several non-encrypted system types that cannot be received by any scanner currently on the market. Systems such as MotoTRBO, ProVoice, and TETRA cannot be monitored by any scanner itself. Motorola's X2-TDMA can be monitored by only 1 scanner model, (the GRE PSR800).

Scanners can not automatically detect new freqs,you have to enter them yourself into the scanner.
Again, not true. With the exception of vintage crystal scanners and very early digital models, all "modern" scanners have a search feature which can detect "new" local [active] frequencies.

Beyond the simple search feature, Uniden DMA scanners have a proximity-based feature called "close call" which will detect strong signals nearby (and if enabled, it can auto-store the frequencies it finds). GRE models have a similar proximity feature called "Signal Stalker".
 
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krokus

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Wirelessly posted (BlackBerry8530/5.0.0.973 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/105)

Basically, there isn't anything available to the public that does everything. There are a few options for radios that will listen to most systems in use.

You have to figure out what you want to listen to, and what type(s) of system(s) they use.
 

Rt169Radio

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Not true. All scanners sold in the US (except government versions) have cellular frequencies blocked out, and very few scanners on the market have "continuous band coverage" in general. Almost every scanner on the market has several frequency ranges/bands within their overall "range" that cannot be received. Only the higher-end scanners can receive "digital transmissions", most scanner models are analog-only.

There are a couple "wide-range receivers" by Icom and AOR that have true continuous band coverage. While these models do "scan" (slowly), they are generally not considered to be "scanners" as we know them. Also, these models cannot follow a trunked system or decode P25 digital.


Also not true, there are several non-encrypted system types that cannot be received by any scanner currently on the market. Systems such as MotoTRBO, ProVoice, and TETRA cannot be monitored by any scanner itself. Motorola's X2-TDMA can be monitored by only 1 scanner model, (the GRE PSR800).


Again, not true. With the exception of vintage crystal scanners and very early digital models, all "modern" scanners have a search feature which can detect "new" local [active] frequencies.

Beyond the simple search feature, Uniden DMA scanners have a proximity-based feature called "close call" which will detect strong signals nearby (and if enabled, it can auto-store the frequencies it finds). GRE models have a similar proximity feature called "Signal Stalker".
Okay,thanks for correcting that info.I didn't know that there were some non-encrypted systems that scanners couldn't listen too.And I forgot that Uniden and GRE scanners have that close call,signal stalker feature.
 
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