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Author Topic: T-Mobile 600MHz Testing Commencements by Market  (Read 11129 times)

Henry Cohen

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Re: Cheyenne & Portland ME 07/31/2017
« Reply #30 on: March 04, 2018, 01:05:26 pm »

Can someone confirm I'm understanding this correctly?

As long as I stay between 653-663, my Sennheiser wireless system will be fine?  (which is B-Band 626-662 I believe).

Yes, but no. The issue is more that the equipment you're using now will lose its FCC certification on July 13, 2020 because it will still be able to tune to frequencies within the auctioned spectrum, and operate at a power level greater than 20mW. So although you might operate only within the 653-663 MHz range if you have a Part 74 license, or 657-663 if you don't, and set your transmitter to 20mW or less, the equipment will not be in compliance with the new technical rules and thus you'll be operating illegally.
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Henry Cohen

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Jay Marr

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Re: Cheyenne & Portland ME 07/31/2017
« Reply #31 on: March 04, 2018, 01:21:02 pm »

Yes, but no. The issue is more that the equipment you're using now will lose its FCC certification on July 13, 2020 because it will still be able to tune to frequencies within the auctioned spectrum, and operate at a power level greater than 20mW. So although you might operate only within the 653-663 MHz range if you have a Part 74 license, or 657-663 if you don't, and set your transmitter to 20mW or less, the equipment will not be in compliance with the new technical rules and thus you'll be operating illegally.

Thanks Henry.  I guess my question should have also stated.  Maybe my device itself is not complaint, but I can operate with a frequency range that is considered legal, so I should not have interference with (for example) T-Mobile?

That's certainly a situation that would be fine for me.  If the FCC wants to swing by the bars I play at to investigate my wireless mic...then shame on me and I'll accept the consequences.  But otherwise, it seems like I can squeeze for life out of my Sennheiser unit.
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Henry Cohen

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Re: Cheyenne & Portland ME 07/31/2017
« Reply #32 on: March 04, 2018, 02:39:46 pm »

Maybe my device itself is not complaint, but I can operate with a frequency range that is considered legal, so I should not have interference with (for example) T-Mobile?

Operating within the prescribed band (653-657, 657-663 MHz) at or below the correct power level, virtually insures you will not cause interference to, or suffer interference from, the adjacent channel wireless carriers, which is mostly not T-Mobile. Except for about a half dozen markets where T-Mobile acquired 600MHz LTE blocks A or G, it will be other carriers adjacent to the duplex gap.


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That's certainly a situation that would be fine for me . . .  But otherwise, it seems like I can squeeze for life out of my Sennheiser unit.

It's likely not wise to state on a public forum your intent to flout federal regulations; low hanging fruit, steep fines and all that jazz. Neither action is condoned or recommended.
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Henry Cohen

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Henry Cohen

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Re: T-Mobile 600MHz Testing Commencements by Market
« Reply #33 on: April 03, 2018, 10:13:44 pm »

Latest T-Mobile spreadsheet of deployment activity, past and for 2018. As of Jan 28, 2018.

Updated as of March 28, 2018
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Henry Cohen

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Jason Glass

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Re: T-Mobile 600MHz Testing Commencements by Market
« Reply #34 on: April 11, 2018, 05:56:33 pm »

Updated as of March 28, 2018
FYI I updated the map on 4/5. Guys, it's important to keep checking on these. I see that they pushed back their Nashville deployments from Q1 to Q3. I doubt that it's the only instance of changes.

https://goo.gl/maps/d51MKdBxbRP2

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