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External Antenna


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I just got T-Mobile home Internet and the service is slow, I'm only getting 2-10 mbs download and 1-4 mbs upload. My house is around 1.5 miles from the tower and the Gateway only shows 4G, will an external antenna help me? I don't mind trying it but I don't want to want to waste my time and money on something that won't work. I do have the newest Gateway with external antenna ports. Thanks 

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Best answer by nc1037 17 March 2024, 13:40

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Userlevel 5
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I would experiment with other locations for the gateway in your home.  It should on your highest floor, near a window.  You can try rotating the unit.

For the best information on the external antennas, seek out Nater Tater on YouTube.  He tested several antennas and positions just yesterday.   I have watched quite a few of his videos.  My impression is that the gateway that supports external antennas isn’t all that good.  I have one of the older models (Sagemcom FAST 5688W) and my service has been excellent - there is no need for me to try anything else.  Good luck. 🍀

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I placed the Gateway in the attic beside a vent pointing towards the tower, nothing but screen and some vinyl between it and outside not much change in speed. I can't get any higher. I don't mind spending time and money on an antenna if it works. I've been watching a lot of NaterTater videos but he has a decent signal to start with. This is what I'm working with.

 

Second time hoping to use T-Mobile for cell service AND now as ISP. Seeing that T-Mobile advertises my area just outside Bozeman, MT as having EXCELLENT 5G service, I obtained the newer generation Gateway (white case, option for attachable antenna) took it home and ran a few tests, after the sales manager in my store did an OOKLA Speedtest (Wi-Fi to the demo gateway in the store, T-Mobile 5G internet access), receiving a download rate of about 790 mbits/sec.

At home, I used the VERY nice T-Mobile app to find the best available location (3-bars 5G at a window) for the gateway, then compared my results with my current ISP’s cable-based 1 gbit/sec service. Unfortunately, I could not exceed 40 gbits/sec, and UL rates were abysmal. I still like the concept and the pricing (especially when one includes the zero-cost streaming services. I returned my device, but I still have a few questions:

  1. What’s the purpose of the 4 coax inputs
  2. Ditto for the 2 RJ-45 inputs
  3. Is there a public source to learn about future network expansion plans (so that I can time my next visit to a T-Mobile store, and perhaps replacement iPhones
  4. Can an external antenna make a dramatic difference?
Userlevel 5
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(1) for a separate antenna to improve 5G reception.  It does not need to be obtained from T-Mobile.

(2) The Ethernet ports are for directly connecting a computer, or a Wi-Fi router (perhaps your old router.)

(3) Network expansion:  Not that I have seen!

(1) (4) See Nater Tater on YouTube  

Userlevel 1
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Are you not connected by 5G? Do you have your 5G Advanced Cellular Metrics numbers to look at?

I DID connect by  5G, although I did not record the Advanced Cellular Metrics.

One other thing about the new white Gateway device. Its very simple screen resembles a mirror when not powered up, and when the device is placed next to a window as recommended, it’s virtually impossible to read the screen against a sunny outdoor background.

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I DID connect by  5G, although I did not record the Advanced Cellular Metrics.

One other thing about the new white Gateway device. Its very simple screen resembles a mirror when not powered up, and when the device is placed next to a window as recommended, it’s virtually impossible to read the screen against a sunny outdoor background.

Post the numbers otherwise no one has any idea what's going on to help.

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Are you not connected by 5G? Do you have your 5G Advanced Cellular Metrics numbers to look at?

I don't know who you directed the question to but I can't get a 5G connection even though the coverage map shows my address in 5G extended. 

Userlevel 1
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Are you not connected by 5G? Do you have your 5G Advanced Cellular Metrics numbers to look at?

I don't know who you directed the question to but I can't get a 5G connection even though the coverage map shows my address in 5G extended. 

Oh sorry I was directing to you. So you're not getting 5G connection at all. Only LTE?

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Are you not connected by 5G? Do you have your 5G Advanced Cellular Metrics numbers to look at?

I don't know who you directed the question to but I can't get a 5G connection even though the coverage map shows my address in 5G extended. 

Oh sorry I was directing to you. So you're not getting 5G connection at all. Only LTE?

Yes. 

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I don't understand I'm showing very good signal but my speeds are terrible with the gateway outside, at one location outside I was able to get a 5G signal but not much change in speed. 

 

 

Userlevel 1
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I don't understand I'm showing very good signal but my speeds are terrible with the gateway outside, at one location outside I was able to get a 5G signal but not much change in speed. 

 

 

The RSRP shows “Fair” getting close to the range “Poor” S/B around -89 or more to be excellent. Like - 81 or -80. Your SINR is 8.1 where as mine is 27. RSQR is “good” range. I got these numbers here. https://powerfulsignal.com/support/knowledgebase/awareness/whats-the-difference-between-cell-signal-strength-and-cell-signal-quality/

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I don't understand I'm showing very good signal but my speeds are terrible with the gateway outside, at one location outside I was able to get a 5G signal but not much change in speed. 

 

 

The RSRP shows “Fair” getting close to the range “Poor” S/B around -89 or more to be excellent. Like - 81 or -80. Your SINR is 8.1 where as mine is 27. RSQR is “good” range. I got these numbers here. https://powerfulsignal.com/support/knowledgebase/awareness/whats-the-difference-between-cell-signal-strength-and-cell-signal-quality/

Thanks for the link. I'm at a loss on to keep trying or give up. 

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