NextG Yagi Antenna


Next G 850MHz Antenna

Need Broadband Internet?

Having moved to regional Queensland to discover poor internet (meaning no Cable or ADSL at the time), I tried Satellite with Reachnet and Telstra as a first attempt. but the speeds were terrible.
Townspeople had reasonable Wireless Internet speeds but being 25km from the transmission tower meant having to overcome the challenge of distance.
As an amateur radio operator I understand propagation and could see the possibilities of an external antenna and could build what I needed.


Next Step Research

If you zero in on the Wireless frequencies that you wish to capture, you can build the right antenna.
My focus was Telstra/Bigpond Next G only... If this isn't your desired band, then you need to adapt for your location and Telco.
Using a borrowed broadband modem, with an external antenna port, and using a generic VHF antenna I improved the receive signal. This gave me heart to continue on and build a better Yagi beam antenna resonant on 850MHz.

The Next G Yagi

Finished antenna

8 Element Yagi - a uni-directional antenna. Black plumbing pipe & 10mm dia. aluminium tube elements

Boom & elements

Elements fitted to boom
Hole drilled ready for Driven Element

Drill holes at precise measurements, insert elements, leaving space for the Driven Element

The Driven Element

Cut the boom and insert the Driven Element

The D.E. is basically a Dipole, equal lengths cut to resonant frequency.

Connecting Feedline

Use white PVC spacer to hold D.E.

White PVC was ideal diameter to fit over black poly beam and to hold the D.E.
Inserted the coax feedline & terminated ends of coax with ring terminals. Note very small holes in aluminium driven element. The ring terminals were screwed into the DE holes inside white pvc fitting.

Links to Next G Yagi resources

LINK to the Specifications

Link to the full DIY Step by Step instructions, with images, to build this antenna

LINK to FAQ and Gallery

Link to Questions and images from people all around the world who built this antenna.

Important Update 2020

Telstra Australia has published the following:

" Telstra will be switching off 3G in 2024. Before switch off, you can use handsets supporting 3G on 850MHz... After switch off you will still be able to access the Telstra Network on 700MHz." Find out more at: Telstra 3G is Closing"

  • 3G telecommunications is being retired in Australia in 2024 but I will leave this page live on the internet
  • The 3G mode [and 850MHz frequency] is still used in other parts of the world
  • As you see in the FAQ/Gallery Page people from several countries sent feedback regarding their build and how they use this antenna for their local conditions.
  • It is still a relevant resource

Additional modelling information

I found some some good modeling information at VK7JJ Next G Yagi and Phil's work assisted my Yagi project.
By the way, I know there are commercial antennas which cost at least $200 but I found they were "one-size-fits-all"and not exact enough for my frequency, besides, making your own is so much fun.
This DIY Yagi costs less than $20 so if you'd like to make one, now you know how. ENJOY
If you have any feedback or stories regarding this antenna please contact me.

Personal Projects

Never stop learning, sharing knowledge or travelling

Each of these images will link to a dedicated webage where I share my Amateur Radio projects or travel pages.

ENVIS Dipole


Emergency HF antenna for 40 & 80mtrs



Building portable emergency cases



Find specifications & technical data

Digital TV Antenna


Facts about improving Digital TV

To New Zealand


Driving both islands in search of beer

Time Travel in Wales


Enjoying Wales & remembering the past

Scotland & city of York


Coast and Highlands travelling in 2022

Then to the USA


In search of good craft beers

Learning to make Cheese


Yumbo, delicious homemade cheese

Next up......................


To be sure..

Contact Me

Please email me if I can assist with information about my projects (or if you notice a broken link).