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narrow band date?

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RohnsRadio

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if this is the worng forum i will say i am sorry in advance.

what is the date that "ALL" part 90 users are to change to narrow band?
i have searched and keep finding 01 jan 2013 but i seem to remember a waiver was granted.

i understand users about 150 MHz are to comply and not low band.

like i said if this is the wrong forum please move to the proper one.
thank you
 

n5ims

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1/1/ 2013 was indeed the date when all were to have migrated to narrowband. There were a few waivers granted, but mostly because those agencies were migrating from the frequencies being narrowbanded to 700 or 800 MHz systems and needed extra time to make this migration. As part of the waiver, they agreed to give up their old frequencies once the migration was completed. The waivers each have their own dates as to when they expire so there is no single date when they all most be completed. There's also that chance that some may be renewed, but I wouldn't count on that happening if I were one of those working under a waiver.
 

RohnsRadio

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thank you
thats what i thought. LOTS of public safety agencies in my area are still useing the "wide band" channels.
guess the FCC will have to make sure they have plenty of ink for the violation notices... lol
 

n5ims

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thank you
thats what i thought. LOTS of public safety agencies in my area are still useing the "wide band" channels.
guess the FCC will have to make sure they have plenty of ink for the violation notices... lol
You are aware that when an agency narrowbands their radios they nearly never change frequencies, they just start using a mode that transmits using a narrower signal width. A user that used a wide band frequency of 155.500 using a bandwidth of up to 25 kHz would remain on 155.500 but only use a bandwidth of up to 12 kHz after narrowbanding. That would free up two narrow band channels on either side of it for future users.

Think of it this way. When you trade out your car to a motorcycle, do you have to stop using the roads designed for a car and move to one designed for a bike? No, you simply ride on the same road, but take less space on the lane. When you ride with a buddy, you can ride side by side on that lane so two vehicles now take up the space originally designed for one.
 

ElroyJetson

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The FCC doesn't have the manpower to do more than minimal enforcement.

If given a choice between enforcing simple narrowband violations or enforcing rules regarding harmful
interference, they will be enforcing the harmful interference cases.

I believe that people will be operating on wideband channels despite the narrowbanding mandate for the next 20 years. Whether out of ignorance of the rule change, or not caring, it'll happen.

People who have radios and are not concerned with pursuing a license for them while continuing to
use them for hunting out in the woods are unlikely to be concerned about the narrowbanding requirement anyway. Nor will they be inclined to buy new radios that are narrowband compliant
in order to replace their ancient but trusty SP-50s which still work.
 

rescuecomm

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UHF T-band (470-520) users were granted a last minute wide band waiver since Congress voted spectrum in the 700mhz band for public safety broadband. Supposedly they will be giving up those frequencies for something else in the near future. Look up the frequencies your county is using on the FCC ULS site and see if the licenses show 11K2F3E or something 11 or less for the first number.
 
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