My Thoughts on Technology and Jamaica: How to boost Speed, Connectivity on a Digicel EX-250 or DX-250 Greenpacket Modem

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Sunday, December 11, 2016

How to boost Speed, Connectivity on a Digicel EX-250 or DX-250 Greenpacket Modem

If have one of these EX-250 or DX-250 Greenpacket Modem from Digicel, chances are you're not going to pick up anything indoors if you live in Westmoreland.

After all, it’s designed for Road warriors on the go who need Broadband Internet on the road or for people who live near to the larger towns; country people still get no love from Digicel as I ranted in my blog article entitled “No Exchange for @Digicel_Jamaica Greenpacket Dx-250 Modem as Data Prices unchanged since 2013”.

But with Caricel Jamaica launching their 4G LTE Modem that designed for Roadwarriors and Students as detailed in my Geezam blog article entitled “Caricel’s Unlimited Modems implies FLOW and Digicel going Unlimited in 2017”, there has been a renewed interest in Digicel Broadband Modems, as Digicel and FLOW are bound to be under pressure to go Unlimited as well.

I predicted that would happen.

Ever since Digicel rolled out their Digicel LTE with no unlimited Data, I did an article on how to get back on the Digicel 4G Broadband trail as detailed in my blog article entitled “Restart your EX-250 or DX-250 Greenpacket Modem as we await Digicel LTE Modems”.

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I also did an article on how to boost your Wi-Fi Signal levels for the Digicel Greenpacket DX-250 Modem as detailed in my blog article entitled “How to Increase Digicel Greenpacket DX-250 Modem Wi-Fi Signal and Range”.

So now that Caricel is coming to make 2017 bright, how do you boost signal to the EX-250 or DX-250 Greenpacket Modem?

EX-250 or DX-250 Greenpacket Modem – How to attach an External WiMaX Antenna

The best way is to boost signal via an external antenna. You'll need the following components:

1.      External WiMaX Antenna
2.      U.FL to Reverse Polarity SMA connectors
3.      3/4" Drill Bit
4.      Drill
5.      Sealant
6.      Mounting Brackets
7.      Screws

The follow the instructions in the RecarroJames video below:


Here’s a video where he focuses primarily on the EX-250 Greenpacket Modem.


It’s really a very simple installation:

1.      Open up the EX-250 or DX-250 Greenpacket Modem
2.      Remove one of the internal antennas
3.      Bore a hole in the back of your EX-250 or DX-250 Greenpacket Modem
4.      Connect the U.FL to Reverse Polarity SMA connectors
5.      Seal the hole with the self-locking screw on the Coaxial end of the U.FL to Reverse Polarity SMA connector
6.      Install the External WiMaX Antenna
7.      Connect the External WiMaX Antenna coaxial cable to the Coaxial end in the modem

Please not you'll need to play around with the External WiMaX Antenna to find the best CINR and RSSI values to get the best reception, which you can access by logging into the Modem as described in my blog article entitled “How to configure the Wi-Fi on your Digicel 4G Broadband Modem”. 

Make sure to give the External WiMaX Antenna as much elevation as possible using a wooden pole. If you use a metallic structure or if you install it connected to your house, make sure it's properly grounded. You should not only see improved connectivity but also an increase in the speed of your Digicel 4G Broadband if you were already getting a weak signal.

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This modification can even be used in a moving vehicle, provided that you have an inverter to power the Digicel EX-250 or DX-250 Greenpacket Modem and the External WiMaX Antenna mounted on the outside of your vehicle.

Sharing is caring so share this with your friends looking to finally use their Digicel EX-250 or DX-250 Greenpacket Modem indoors.

Here’s the link


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