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I found this interesting upgrade last week. I thought this site had B12 before but I didn't log it on Cellmapper if it did so not 100% sure, but the site is now mid-band only with B2, B41, B66, N41. T-Mo is very dense here so low-band is probably not needed.

Before:

zcnxPZ8.png

Now:

fq1edua.jpg

T-Mobile's network in this small area: (T-Mobile in red, Sprint keep sites in green)

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1 hour ago, mdob07 said:

I found this interesting upgrade last week. I thought this site had B12 before but I didn't log it on Cellmapper if it did so not 100% sure, but the site is now mid-band only with B2, B41, B66, N41. T-Mo is very dense here so low-band is probably not needed.

Before:

zcnxPZ8.png

Now:

 

T-Mobile's network in this small area: (T-Mobile in red, Sprint keep sites in green)

 

Not 100%, but fairly certain those antennas don't support B12, so likely never had low band.

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6 hours ago, mdob07 said:

I found this interesting upgrade last week. I thought this site had B12 before but I didn't log it on Cellmapper if it did so not 100% sure, but the site is now mid-band only with B2, B41, B66, N41. T-Mo is very dense here so low-band is probably not needed.

Before:

zcnxPZ8.png

Now:

fq1edua.jpg

5 hours ago, Dkoellerwx said:

Not 100%, but fairly certain those antennas don't support B12, so likely never had low band.

The old antennas are Nokia FASB RAS antennas which do support 2x2 L700. They also have two midband antenna arrays at 4x4 each. 

It looks like the site did indeed lose lowband for some reason. 

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Interestingly enough, today I came across a site in Seattle where they did the same thing. Previously, Commscope FFHH-65B-R3 panels were live with quadband; now there's only 1900/2100/2500.

My knee jerk reaction is that I don't like this deployment. It makes optimizing handoffs sloppy and complicated.

I  shot an email to the Seattle network team asking what the logic is - let's see what they say. 

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3 hours ago, RAvirani said:

Interestingly enough, today I came across a site in Seattle where they did the same thing. Previously, Commscope FFHH-65B-R3 panels were live with quadband; now there's only 1900/2100/2500.

My knee jerk reaction is that I don't like this deployment. It makes optimizing handoffs sloppy and complicated.

I  shot an email to the Seattle network team asking what the logic is - let's see what they say. 

So I wonder if this Sprint keep site conversion is the same setup just with different antenna. There's only 1 Nokia radio, so its either 600/700 only or 1900/2100 only + 2500. It wouldn't make sense to be 600/700 with 2500 without SA N41 because it would only be able to do B41 LTE without 1900/2100 to serve as anchor for NSA N41. The Sprint B25 radio was retained and is connected to the antenna and is currently the only technology broadcasting. This is also a very dense area for T-Mobile. 

0p50spS.png

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6 minutes ago, mdob07 said:

So I wonder if this Sprint keep site conversion is the same setup just with different antenna. There's only 1 Nokia radio, so its either 600/700 only or 1900/2100 only + 2500. It wouldn't make sense to be 600/700 with 2500 without SA N41 because it would only be able to do B41 LTE without 1900/2100 to serve as anchor for NSA N41. The Sprint B25 radio was retained and is connected to the antenna and is currently the only technology broadcasting. This is also a very dense area for T-Mobile. 

0p50spS.png

Are there ground mounted radios? There are 8 jumpers to the Commscope antenna, so 4xLowband/4xMidband should be deployed or coming soon...

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On 5/14/2021 at 7:31 PM, RAvirani said:

Are there ground mounted radios? There are 8 jumpers to the Commscope antenna, so 4xLowband/4xMidband should be deployed or coming soon...

I don't think so, I can see 4 jumpers coming from the Nokia radio and the other four are from the Sprint RRUS31. 

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On 5/14/2021 at 3:29 PM, RAvirani said:

I  shot an email to the Seattle network team asking what the logic is - let's see what they say. 

Have you gotten a response yet? I'm curious to see what they say as well. 

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