Update (29/09/2026): We have plenty of stock of all our products, find us also in and    How to get a quotation

Lightweight Helical Tripleband GNSS Antenna

SKU: AS-ANT3B-HEL-L1256-SMA-00

High performance and lightweight all band helical antenna. Ideal for RTK rovers where weight is critical but performance can’t be compromised.

146,00€
Availability: In stock
payment methods
2 years worldwide warranty
We ship from Spain. Expected delivery to
:
This product has quantity discounts available:
<50 units 146,00€
>=50 units 98,00€ Click here for bulk orders
>500 units Contact us for special pricing
Got any questions? Contact us! - a real human (not AI) will answer in <24 hours!
ground plate for GNSS antenna
Ground Plate for GNSS antenna
Improve performance, directivity, noise immunity of your GPS antenna
8,20€
Magnetic Stand for SMA Antenna Top
Magnetic Stand for SMA Antenna
Useful if you want to install SMA antenna on a metallic surface
23,00€
Cable extender 5m
SMA antenna RF cable extender - 5 meter
In case you need a longer cable than the one included with the antenna
25,00€
Description

External tripleband L1/L2/L5 + L-band helical GNSS antenna, with a weight below 35 grams, ideal for lightweight applications like drones or portable devices.

Good to know:
– Compatible with all simpleRTK3B boards as well as any other multiband GNSS receiver in the market
– Helical antennas are ideal for GNSS reception in strange attitudes (not always facing the sky)
– Integrates a SMA-male termination, no cable is needed although you can use our cable extenders
– Be aware that if you plan to use the Pixhawk connector in the simpleRTK3B board, the helical antenna will block it, so you will need a cable extender.
– This product is an alternative to Holybro HANT-X622A antenna

Includes:
– RTK tripleband + L-band external helical GNSS antenna with SMA connector

AS-ANT3B-HEL-L1256-SMA-00 ASB-ANT3B-HEL-L1256-SMA-00
Specifications
3B Helical antenna
Antenna element
  • Supported positioning signal bands:
    • GPS: L1, L2, L5
    • GLONASS: G1, G2, G3
    • BeiDou: B1, B2, B3
    • Galileo: E1, E5, E6
    • QZSS: L1, L2, L5, L6
    • Navic: L5
    • L-band: L6
    • SBAS: WAAS, EGNOS, MSAS and GAGAN
  • Polarization: RHCP
  • Peak gain: 2dBi
  • Axial Ratio @ zenith: <3dB
  • Azimuth Coverage: 360 degrees
  • Impedance: 50 ohm
Electrical
  • Supply voltage: 3-16V
  • Typical supply current @ 3V: 45mA
  • Average LNA gain: 33dB
  • Maximum Noise Figure: 1.5dB
  • Maximum VSWR: 2
Mechanical
  • Maximum length: 83mm
  • Weight: 25g
  • Mounting style: direct on SMA connector + 3x M2.5*6
  • Connector: SMA male
Environmental
  • Operating Temperature: -40 to +85°C
  • Storage Temperature: -40 to +85°C
  • IP Rating: IP67
  • RoHS: Yes
Documentation
Start here:
    Certifications:Accessories:

    Got any questions or requests?
    Contact us! We'll answer <24 hours!

    Contact ArduSimple
    Close

    Access your Account and orders

    Or

    New customer? Create your account
    ArduSimple – high precision RTK survey equipment and solutions made simple

    Want to learn more about GPS and RTK?

    If you are busy right now, our engineers can send you 3 short e-mails, explaining all you need to know to start your project.