Need help finding tower locations for Mifi 8000 (Sprint)

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Didneywhorl
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Re: Need help finding tower locations for Mifi 8000 (Sprint)

Post by Didneywhorl » Sun Jul 26, 2020 3:54 am

The mifi8000s external antenna ports disable the internal 4x4 antennas when used. I dont think there is a way to enable 4x4 when using the externals.

I simple cabling setup is just buying your big LMR cables with sma male on one end and type N male on the other. Then use a short TS9 to SMA female pigtail/jumper between the LMR cable and the MIFI.

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Re: Need help finding tower locations for Mifi 8000 (Sprint)

Post by Viper67857 » Sun Jul 26, 2020 9:11 am

There's also the option of putting the mifi in an enclosure on the roof and running a high-quality active usb cable to it... Would be cheaper than antennas and you don't lose the 4x4 mimo that it has internal. Generally, if you see 5 bars with good SNR on a fast band on the device by itself, then adding antennas probably won't do much. Dropping from 4x4 to 2x2 may actually slow you down.

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Re: Need help finding tower locations for Mifi 8000 (Sprint)

Post by Viper67857 » Sun Jul 26, 2020 9:18 am

Diebog wrote:
Sat Jul 25, 2020 7:49 pm
Vipers post above was talking about taking it apart and looking for standard connectors for pigtails (like mhf4), and if so get 4 SMA bulkhead pigtails so you can run 2 mimo antennas with proper connections for 4x4 instead of getting 2x2 with those problematic ts9s. I don't quite understand the 2x2 and 4x4 lingo (more research again needed) Or was he talking about taking the Mifi apart? I don't understand how using antennas on the router itself boosts the signal for the Mifi. There are 3 moveable antennas on the top of the Asus router but I thought they were to broadcast the wifi signal in the home and not to pickup the Mifi signal?

Thanks again!
Yes, I was referring to taking the mifi apart, sorry for any confusion. That Asus router is great as-is (I use the same one behind my wg1608).

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Re: Need help finding tower locations for Mifi 8000 (Sprint)

Post by Diebog » Sun Jul 26, 2020 11:52 am

Never thought of putting the Mifi on the roof. What type of water tight enclosures are available that wont block the signal? Where would you look for one of these? And not sure what active usb cable is. Is it exterior rated? Meaning will sun and rain hurt it?

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Re: Need help finding tower locations for Mifi 8000 (Sprint)

Post by Diebog » Mon Jul 27, 2020 2:51 pm

Was thinking about putting it on the roof, and was thinking about a few concerns. Its pretty hot outside and the Mifi with the battery installed (wont work without a battery installed) what will the heat do being on top of the roof? There isnt much shade if any. I guess Id need a weather tight box with a fan to keep things cool? Has anyone done this before? What setup do you have?

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Re: Need help finding tower locations for Mifi 8000 (Sprint)

Post by Diebog » Mon Jul 27, 2020 5:16 pm

I took it apart and here is what I found. Looks like the antennas are in the actuall
Cover. How do I know if it's 4x4 or 2x2?
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Re: Need help finding tower locations for Mifi 8000 (Sprint)

Post by Viper67857 » Mon Jul 27, 2020 7:01 pm

Looks like 5 antennas... I'd guess 4 are for 4x4 mimo LTE and the 5th is the wifi. And am I seeing things or are those mhf4/u.fl connectors near each of the antenna connections? If that were mine I'd probably fry it with my tinkering nature.

What you should do depends on your level of comfort with tinkering and possibly losing the device... The safe bet is a flat panel mimo antenna on the roof, some good cable and ts9 adapters...

The more fun route is trying to make it run without the battery and seeing if it's possible to connect 4 decent paddle antennas to those antenna connections and building it all into a nice enclosure... I say paddles because your signal seems good enough up there to not really need to invest in high-gain directionals. And running with the case open without the battery reduces heat and there's no battery to explode...

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Re: Need help finding tower locations for Mifi 8000 (Sprint)

Post by shoulin333 » Tue Jul 28, 2020 12:03 pm

They look like the female connectors, just like those on a CoolPad. I have been looking at ebay/amazon to try to find a connector that would plug in there and then convert to SMA of some sort but it seems hard to find. Thinking about buying a few different cables, they are cheap, and just see what happens.


This one seems like it could work but would probably need some hot glue to secure.

https://www.ebay.com/itm/Adaptor-MHF4-t ... SwFzZbuh5m
sdf.png
sdf.png (173.69 KiB) Viewed 2786 times

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Re: Need help finding tower locations for Mifi 8000 (Sprint)

Post by shoulin333 » Tue Jul 28, 2020 1:24 pm

looking further this may be a ms-156 connector.

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Re: Need help finding tower locations for Mifi 8000 (Sprint)

Post by Diebog » Tue Jul 28, 2020 7:02 pm

I'm totally comfortable tinkering with it. It seen these same connetors in iphones. They connect the wifi and cellular antennas. How can you tell one connector from another? Measurements? Which 4 are for MIMO Vs wifi? Also How is it possible to get this to work with no bat? I've thought about it and you would have to fool the pins that read the battery charge level and at the same time provide the voltage to the other pins to power the unit.

Also if I were to get some padel antennas do they sell wire with those small connectors like iPhones have? And what 4 paddel antennas would be best?

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