The Heli-22 Wifi (Bi-directional)

Circular Polarised, Bi Directional Mine/Tunnel Antenna

The Heli-22 Wifi offers medium to high gain, which makes these antennas ideal for mining tunnels where IoT/M2M connectivity is deployed and can also be used for coverage into the stopes.

The Heli-22 Wifi is a dual-band 2.4 GHz and 5 GHz Wi-Fi antenna, radiating in  both directions (i.e. bi-directional). This makes them ideal for the coverage of both Wi-Fi bands in mining and other type of tunnels.

These antennas are typically used for the deployment of IoT within the tunnel to provide telemetry and mine automation. These antennas are available in both Left-hand Circular (LHC) & Right-Hand Circular (RHC) polarised antenna elements to provide optimal decorrelation within a MIMO deployment when using the BRKT-45, resulting in optimum performance. The decorrelation is due to the polarisation difference and spatial diversity, between the two antenna elements, which enhances MIMO performance and RF reliability within a mining tunnel.

The dual-band Wi-Fi connection propagates around tunnel bends in a Non-Line of Sight scenario and provides immunity to many Wi-Fi signal disrupting objects such as trains and drilling machinery which appear to obscure the tunnel.

The Heli-22 WiFi Antenna Frequencies & Gains

2400 - 2500 MHz	12 dBi
5000 - 6000 MHz	13 dBi

Impedance	50 Ohm
Polarization	Circular (LHC and RHC)
VSWR	<1.5:1 over 90% of the band
Connectors	N-Male
Input Power MAX	30 watt
Water Resistance	IP 65
Radome Material	ABS & PVC
Dimensions	526 mm x 415 mm x 266 mm
Weight	3.9 kg

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Return & Refund Policy

Thanks for shopping at Bolton Technical. If you are not entirely satisfied with your purchase, we're here to help.

Anytime during your 1-year manufacturer's warranty, should your unit not perform to its usual standards, contact us, and we'll take care of it. We're not here for the one-time sale. We're here for the lifetime support.

The warranty covers material and workmanship defects on all signal booster or cellular amplifiers.

• Cell Phone Signal Booster Products  carry a 30-day money back guarantee.

Important Terms For Exchange:

1. Customer returned products should not have changed from their original state and must be unmodified. They must be returned packaged in their original packaging with proof of purchase enclosed.

2. A Handling Fee will be charged on items not returned in its original condition and packaging.

3. Amplifiers must be returned along with all accessories that were originally shipped with the amplifier for testing, repair or replacement of the entire kit.

4. If the product is deemed to have been damaged or altered, affecting its electronic or physical attributes by mishandling, neglect or misuse then the warranty won’t apply.

5. The product can be replaced or repaired as deemed fit by the manufacturer. For products returned, the buyer must pay shipping fees to the destination address. It will be shipped back after repair/replacement at no cost.
6. All products purchased on any special or promotion, can be returned within 5 days of receiving the product.

Cell phone signal boosters are valuable and high-end investments. So we understand any reasons or doubts you might have. That’s why we provide a money back guarantee. Simply contact us (011-749-3085) or email sales@boltontechnical.co.za and we’ll provide you with an RMA (return merchandise authorization). No run-arounds. No delaying tactics. Just good old fashion honest business.

We only ask that you:

• Pay for return delivery.

• Include all the original items and packaging in good condition. All weBoost/Wilson products have a 1 year warranty. Just contact us about any issue, and we’ll be glad to help.

• We do not compensate for any express delivery paid for with the original order

Returns Disclaimer : Handling Fee will be charged on items not returned in its original condition and packaging.

Cell phone signal boosters are valuable and high-end investments. So we understand any reasons or doubts you might have. That’s why we provide a 30 day return guarantee. Simply contact us (011-749-3085) or email sales@boltontechnical.co.za and we’ll provide you with an RMA (return merchandise authorization). No run-arounds. No delaying tactics. Just good old fashion honest business.

We only ask that you:

• Pay for return delivery.

• Include all the original items and packaging in good condition. All weBoost/Wilson products have a 1 year warranty. Just contact us about any issue, and we’ll be glad to help.

• We do not compensate for any express delivery paid for with the original order

Returns Disclaimer : Handling Fee will be charged on items not returned in its original condition and packaging.

Free Delivery to all Major Cities

Free Delivery on orders over R 750 applies to the following local and main centres. No hidden costs or fees.

Local 

(Johannesburg and Surrounding Areas)

Main Centre

(Johannesburg, Durban, Pretoria, Cape Town, Bloemfontein, Port Elizabeth, East London)

Regional

For Remote area delivery costs, please contact sales@boltontechnical.co.za for exact pricing.

Our preferred couriers are The Courier Guy, Courier IT, and Dawn Wing.

For all provinces, Economy Delivery takes 3-5 business days. Please contact us directly should you require express shipping.

**Express orders need to be made before 10am for same day dispatch.

We reserve the right to amend delivery costs. All changes will be disclosed here.