Local Tower Upgrades (Verizon)

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xdavidx
Posts: 267
Joined: Tue May 28, 2019 4:04 pm

Re: Local Tower Upgrades (Verizon)

Post by xdavidx » Wed Jul 17, 2019 9:53 pm

swwifty wrote:
Wed Jul 17, 2019 9:13 pm
an amplifier? a lot of the ones I've seen for LTE are $$$$
Yep. $250 for the one that @tgoodwin is using with his grid antenna.

swwifty
Posts: 494
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Local Tower Upgrades (Verizon)

Post by swwifty » Thu Jul 18, 2019 7:18 am

xdavidx wrote:
Wed Jul 17, 2019 9:53 pm
Yep. $250 for the one that @tgoodwin is using with his grid antenna.
ouch

tgoodwin
Posts: 19
Joined: Thu Jun 06, 2019 8:49 am

Re: Local Tower Upgrades (Verizon)

Post by tgoodwin » Thu Jul 18, 2019 8:12 am

I've been watching eBay for another amp. They pop up from time to time. I just missed a new in box one for $179. Made a low ball offer and it sold the next day at listing price. I was thinking it was someone from here :)

swwifty
Posts: 494
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Local Tower Upgrades (Verizon)

Post by swwifty » Thu Jul 18, 2019 8:32 am

do these amplifiers work in both directions or just in receive ? I can't imagine they would amplify on transmit as UE limits in LTE are already +23dbm which the UE can easily do.

tgoodwin
Posts: 19
Joined: Thu Jun 06, 2019 8:49 am

Re: Local Tower Upgrades (Verizon)

Post by tgoodwin » Thu Jul 18, 2019 10:42 am

The spec sheet says it is bi-directional

xdavidx
Posts: 267
Joined: Tue May 28, 2019 4:04 pm

Re: Local Tower Upgrades (Verizon)

Post by xdavidx » Thu Jul 18, 2019 4:11 pm

You saw much better upload speeds with the amp than without, didn't you?

Another amp?! Is that secondary antenna getting jealous of the one that the primary has? :lol:

swwifty
Posts: 494
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Local Tower Upgrades (Verizon)

Post by swwifty » Fri Jul 19, 2019 8:39 am

tgoodwin wrote:
Thu Jul 18, 2019 10:42 am
The spec sheet says it is bi-directional
huh, I wonder if that just takes cable losses into effect and transmits at the max 23dbm.

swwifty
Posts: 494
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Local Tower Upgrades (Verizon)

Post by swwifty » Fri Jul 19, 2019 8:40 am

xdavidx wrote:
Thu Jul 18, 2019 4:11 pm
You saw much better upload speeds with the amp than without, didn't you?

Another amp?! Is that secondary antenna getting jealous of the one that the primary has? :lol:
I wonder if you could just run all your cabling through this thing and then split it back to the modem, or if that would mess up the spatial multiplexing cause then it would be effectively the same signal?

xdavidx
Posts: 267
Joined: Tue May 28, 2019 4:04 pm

Re: Local Tower Upgrades (Verizon)

Post by xdavidx » Fri Jul 19, 2019 1:42 pm

swwifty wrote:
Fri Jul 19, 2019 8:40 am
I wonder if you could just run all your cabling through this thing and then split it back to the modem, or if that would mess up the spatial multiplexing cause then it would be effectively the same signal?
Nope, doesn't work that way. You'd need one for each antenna.

swwifty
Posts: 494
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Local Tower Upgrades (Verizon)

Post by swwifty » Fri Jul 19, 2019 2:18 pm

xdavidx wrote:
Fri Jul 19, 2019 1:42 pm
Nope, doesn't work that way. You'd need one for each antenna.
Yeah, was just thinking out loud here, but most spatial multiplexing processing is done digitally. That being said orthogonal signal polarizations (Vertical and Horizontal, or +/- 45 degrees) probably help reduce the digital processing with all the overhead of spatial multiplexing.

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