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fcc p25 liscensing?

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mainetrunk

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Hi guys, I dont remember what area this was mentioned, so I'll go this route.. When an entity signs for a digital - convetional liscense, The emmission numbers are different from analog numbers?
Example
Analog entity--------------- --- emmision designator ----repeater freq, conventional
----------------------------------------------11k2f3E--
---------------------------------------------20k0f3E
input---------------- -----------------------11k2F1E

Then ,a p25 entity repeater -------11K2F3E conventional
--------------------------------------------- 20k0F3E
input---------------------------------- --11K2F1D
----------------------------------------------20K0F3E

Then, a mixed conventional system--repeater
----------------------------------------------------11K2F3E
----------------------------------------------------112KF1D
input--------------------------------------------112F1D
----------------------------------------------------11K2F3E

My question is---how do tell the difference between analog and p25 users by looking at the ownership filing?
Please use simple terms, I'm still learning// lol
 
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mainetrunk

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Thank you sir!,But this doesnt say p25----11K2F3E 2.5 kHz deviation FM "narrowband 12.5 kHz" analog voice (FMN mode in RRDB - may also be 11K0 and 11K3 bandwidth ) or is just not pronounced,but digital ...?
 
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MattSR

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Emission Designators are more of an art than a science. Theres no hard and fast rule that says that EmDes X equals mode Y....
 
K6CDO

K6CDO

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P25 emissions are the 8K##F#x (or 9K##F#x) format designators.
8K10F1E = P25 Phase I voice
8K70F1E = P25 Phase II voice
etc.

A P25 signal may be operated within an 11K#F#x envelope, but that would also allow analog operations.
 
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Also you should remember that the emission designators on the license only show what the licensee is allowed to use, not which one(s) they actually use. There may be several on a license while they actually only use one or two of them in reality. This may be due to them adding several for evaluation and not removing any when they finally picked the winner and built out their system.
 
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nd5y

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There are too many possible combinations to conveniently list them all.
Emission designators have three parts. You have to analyze each part.
See these pages for what the parts mean.
FCC: Wireless Services: Industrial/Business: Licensing: Emission Designators
FCC: Wireless Services: Industrial/Business: Licensing: Emission Designators
FCC: Wireless Services: Industrial/Business: Licensing: Emission Designators

Types of radio emissions - Wikipedia, the free encyclopedia

http://www.itu.int/dms_pubrec/itu-r/rec/sm/R-REC-SM.1138-2-200810-I!!PDF-A.pdf
 
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