ADS-B 978 MHz vs 1090 MHz Antennas: Selection Guide

ONELINKMORE engineering guide: Use this reference to narrow the connector or cable configuration before ordering. Always confirm the interface, center contact, impedance, frequency range, mounting style and cable requirements for the specific system.

Identify the ADS-B frequency you need

1090 MHz is used by 1090ES traffic and is the primary ADS-B frequency in many aviation environments. In the United States, 978 MHz UAT is also used by eligible general-aviation traffic. A receiver setup may target 1090 MHz only or monitor both 978 MHz and 1090 MHz with suitable receiver channels and antennas.

Single-band or dual-band?

A frequency-specific 1090 MHz antenna is appropriate when the receiver monitors only 1090ES. A wideband or dual-band antenna can simplify a setup intended to receive both 978 MHz and 1090 MHz, although receiver architecture, filtering, feed-line loss and local interference remain important.

Connector and installation checks

  • Confirm SMA, RP-SMA, TNC, N or other connector types on the receiver and feed line.
  • Verify male/female gender and center contact before ordering.
  • Keep feed-line loss low, especially when the antenna is far from the receiver.
  • Place the antenna with the clearest practical view of the horizon.
  • For outdoor installations, evaluate weather exposure, grounding and lightning-protection requirements.

Related ADS-B products

What to send for a compatibility review

Include the receiver or SDR model, target frequency, current connector, cable length, indoor or outdoor installation, mounting preference and estimated quantity. A photograph of the receiver port helps prevent SMA/RP-SMA mistakes.

Need help selecting a configuration?

Browse our RF Connectivity Best Sellers & Engineering Picks, or send the connector, cable, frequency and quantity requirements for review.