Aviation's Panel Mount Avionics Installation Leader

The Easy Choice

The IFD540 & IFD440 represent the next generation in FMS/GPS/ NAV/COM systems. Each provides VHF communication and SBAS/ LPV precision navigation and are designed to meet the accuracy and integrity requirements for ADS-B as part of the NextGen airspace initiative. As plug-and play replacements for legacy systems, the IFD540 & IFD440 each share the same basic functionality in large and compact display formats respectively.

When it comes to panel-mounted avionics, you now have a choice and the choice is easy. Avidyne.

Hybrid Touch: Knobs & Buttons or Touch-Screen

Avidyne's award-winning Page & Tab user interface allows you to go to any page in the system with only one or two clicks. In addition to the dedicated knobs and buttons that many pilots prefer for frequent pilot actions, the IFD540 & IFD440’s Hybrid Touch capability allows pilots to perform virtually all of those same functions via the touch-screen interface, as well as providing additional MultiTouch functionality like pinch-zoom, map panning, and graphical flight plan editing, allowing the pilot to decide to use the MultiTouch screen, or knobs and buttons depending on the pilot’s phase of flight.

Avidyne’s unique Hybrid Touch user interface eliminates nested menus and allows pilots to view any page with only one or two clicks.

IFD-Series Buttons and Tabs

IFD540 replace Garmin 530

Plug & Play Replacements

The IFD540 & IFD440 are physical plug & play replacements for the Garmin GNS530 and GNS430 respectively, using the existing tray and connectors, and they are compatible with all the popular interface configurations, which can greatly minimize installation costs.

Made by Pilots for Pilots

The IFD540 & IFD440 were designed for ease of use, especially during single-pilot IFR operations. As avid and enthusiastic pilots, we at Avidyne understand the importance of workload reduction and simplicity of operation.

TheIFD540 & IFD440 provide an easy page & tab user interface, plus advanced radio management including automated NAV frequency tuning and COM frequency nomination, automatic frequency identification, easy-to-modify graphical flight planning, and Avidyne’s exclusive GeoFill™ waypoint nomination.

Flight Planning Has Never Been Easier

Entering an IFR flight plan is easier than ever with the IFD540 & IFD440. Extensive testing and customer experience have proven that the IFD540 & IFD440 user interface reduces button pushes and knob twists required with previous navigators by 50%-75% or more. Drop-down menus are logically placed to provide easy data entry of airways, exit waypoints, destinations, and approach procedures.

IFD540 Flight Planning

IFD540 Rubberbanding

Graphical Flight Plan Editing

With the IFD540 & IFD440’s graphical flight planning capability, you can easily edit your flight plan with the touch of the screen. The ‘rubber banding’ feature allows you to stretch any leg in the flight plan to make a deviation for weather or to accommodate an amendment from ATC.

FMS Preview

Avidyne’s exclusive FMS Preview™ is a powerful flight planning feature that makes it even more intuitive to load flight plans by showing you a real-time graphical depiction of each proposed modification in cyan prior to selection. FMS Preview makes it easy to visualize before selecting a desired waypoint, airway, hold or hold geometry, Direct-To, approach, approach transition and any other terminal procedures.

IFD540 FMS Preview

Easy Loading of Approaches

The dedicated PROC (Procedure) button allows you to quickly load approaches at your destination airport by selecting from the intuitive pop-up list on the map. FMS Preview allows you to view each of the available approaches graphically prior to selection. Unlike previous-generation navigators, the IFD540 & IFD440 allow you to quickly load any number of destination airports and multiple approaches into your flight plan.

IFD540 Loading and Approach

Entering a Hold is Easy

You can easily enter and fly a Hold at any waypoint, including VORs, intersections, user-defined waypoints, airports, etc. The FMS will default to a standard hold pattern at current Heading, and all parameters are easily editable.

Avidyne IFD540 entering a hold

Avidyne IFD540 entering a hold

“Next Leg” Depiction

On the map, the current leg you are flying is always depicted as a solid magenta line. To give you a clear indication of your next leg, the IFD540 & IFD440 will display a magenta & white “candy cane” line, which is especially handy during entries into a holding pattern.

Quick Access to Info You Need

The IFDs feature a convenient Side Tab, so you can quickly view your Data page, Flightplan, or Nearest Airports while viewing the Map.

While in FMS mode, you can access your MAP any time simply by clicking or dragging the side tab.


Managing your radios is easy with the IFD540 & IFD440. Frequencies can easily be entered either by rotating the dual knobs on the left, or by using the touch-screen numeric keypad. COM frequencies can also be tuned directly by touching the displayed frequencies on Info, Nearest, and Frequency List pages. You can also simultaneously tune both the active and standby frequencies, both of which can be easily monitored when coupled with Avidyne’s AMX240 Audio Panel. The IFD540 & IFD440’s powerful FMS automatically nominates, auto-tunes, identifies, and monitors the NAV radio frequencies, so you may never have to tune another VOR or ILS frequency again! Should you choose to do so, manual tuning is easily completed with the pop-up numeric key pad or by simply typing the identifier for the VOR.

Easy Radio Tuning

Touching any frequency in the Info list, Freq page, or Nearest page automatically transfers it into the Standby window.

Avidyne IFD540 Touch Screen GPS

Multiple Frequency Formats and Station Readout

Communications are greatly improved with the IFDs. You can configure your unit(s) to have multiple standby frequencies, decoded agency identifiers, and Rx/Tx Indicators.

IFD540 frequencies

The IFD540 & IFD440 decode the active and standby frequencies based on proximity in the database and display the names of the stations in plain English, providing a handy reminder of the agency to which you will be transmitting when pressing the push-to-talk button.

IFD540 fuel range ring

Low-Fuel Protection

When the IFD is connected to a compatible Fuel Totalizer System, the IFD will display a green Fuel Range Ring, indicating a fuel reserve of 45 minutes. A dashed green circle indicates a maximum range without reserve.

IFD540 Charts and Airport diagrams

Electronic Approach Charts and Airport Diagrams

The IFD540 includes CMax™ Approach Charts & Airport Diagrams. Utilizing Jeppesen’s Jeppview® charts subscription services, CMax provides Worldwide approach charts and a database of over 6,000 airport diagrams, most of which are geo-referenced, allowing for the display of your ownship and flight plan position right on the chart or airport diagram.

Terrain Awareness

The IFD540 & IFD440 include Terrain Awareness which can be displayed over the color-contoured terrain base map for easy pilot recognition of an imminent encounter with nearby terrain. Caution Alerts are provided when a collision with terrain is projected within approximately 60 seconds, and Warning Alerts are provided for terrain projected within approximately 30 seconds. FLTA provides aural alert messaging as well.

IFD540 Terrain Awareness

The Forward Looking Terrain Alerting (FLTA) capability provides a solid yellow or red impact point based on flight path projection.

TAWS-B Option

In addition to its standard Terrain Awareness capability, the IFD540 also offers an option for TAWS-B, which is mandated for business jets and turboprops with six or more passenger seats. TAWS-B will be available as a software upgrade in a future release.

Working Well Together

The IDF540 & IFD440, when paired in any combination, leverage Avidyne’s Entegra Release 9 Byteflight databus architecture. A Keyboard Convenience feature allows for data entry on a QWERTY keyboard that automatically appears when an alpha-numeric data field is highlighted, making data entry as familiar to you as your computer or smart phone. With GeoFill, the IFD540 & IFD440 will virtually always guess accurately your next waypoint after only entering one or two letters.

In dual installations, the dual-databus architecture allows pilots to enter the flightplan on the QWERTY keyboard of one unit, while viewing the Map on the other.

IFD540 Charts and Airport diagrams

avi stack

Made for Each Other

Built on a dual databus architecture, the IFD540 & IFD440 are key components in Avidyne’s new panel-mounted plug & play avionics suite, which also includes the AMX240 Audio Panel, AXP340 ADS-B Extended Squitter Mode S Transponder, and DFC90 Digital Autopilot.

  • Touch Screen
  • High-density AMLCD w/super bright LED backlighting
  • Easy-to-use FMS
  • Exceptional color-contoured terrain & water base map


  • 5.7" Diagonal w/Touch Screen
  • Full VGA - 640 x 480 pixels
  • 65,535 colors
  • Ultrabright sunlight readable w/LED Backlighting


  • Width: 6.30" (16.0cm)
  • Height: 4.60“ (11.7cm)
  • Depth: 11.00“(27.5cm) behind panel including connectors


  • 8.50 lbs (3.79kg) including rack & connector

Power Requirements

  • Max 2.5A @ 28VDC


  • DO 160E
  • To 50,000 ft.
  • -20C to +55C Operating
  • +70C Short Term


  • External forced air cooling not required


  • 2 Years parts & labor included
  • FlexCare™ extended warranty service available

Applicable TSO

  • TSO-C34e ILS Glide Slope Receiving Equipment
  • TSO-C36e Airborne ILS Localizer Receiving Equipment
  • TSO-C40c VOR Receiving Equipment
  • TSO-C110a Airborne Passive Thunderstorm Detection
  • TSO-C113 Airborne Multipurpose Electronic Display
  • TSO-C118 Traffic Alert & Collision Avoidance (TCAS)
  • TSO-C146c Stand-Alone Airborne Navigation Equipment Using GPS, Class 1, 2, 3 (LPV)
  • TSO-C147 Traffic Advisory System (TAS)
  • TSO-C151b Class B TAWS (Optional)
  • TSO-C157 Flight Information System -Broadcast (FIS-B)
  • TSO-C165 Electronic Map Display
  • TSO-C169a VHF Radio Transceiver Equipment

Multi-channel VHF Voice/Data Transceiver

  • 10 Watt transmitter (Class 3, 5) -16 Watts (Optional)
  • Capable of simultaneous reception of up to four channels, voice or data
  • 8.33KHZ or 25KHZ Operation (Class C, E)including offset carrier
  • 118.000 MHZ to 136.975 MHZ operation


  • 16-Channel GPS/SBAS Receivers
  • 1,000 user-defined Waypoints
  • 99 Flight plans, Up to 128 waypoints each
  • RTCA DO-178B and DO-254 Level B
  • RTCA DO-160E
  • Meets DO-229D, Beta Class 3
  • Accuracy:
    -Autonomous Position
    3 meters (CEP 50%)    
    5 meters (95%)
    -SBAS Differential Position
    1 meter (CEP)
    3 meters (95%)
    -Velocity Accuracy 0.1 knots (95%)
  • Dynamics:
    Acceleration - 10g max.
    Speed - 1,000 knots
    Altitude - 50,000 ft

VOR Receiver

  • Flag sensitivity Set to –103dBm (Actual sensitivity exceeds –107dBm)
  • 108.0 MHZ to 117.95 MHZ operation
  • Meets RTCA DO-196 requirements
  • CDI output: ±150 mV full scale
  • DME channeling: 2x5, BCD, Slip Code Narco 890/891, King Serial
  • Audio sensitivity: –103.5 dBm for 6 dB S/N with 1 kHz 30% mod.
  • Audio output: 100 mW minimum into 500 ohm load; external amplifier required

VHF Localizer Receiver

  • Flag sensitivity set to –101dBm (Actual sensitivity exceeds –107dBm)
  • 108.1 MHZ to 111.95 MHZ operation
  • Meets RTCA DO-195 requirements
  • CDI output: ±150 mV full scale
  • Centering accuracy: < 4.5 mV
  • Flag sensitivity: –103.5 dBm
  • Audio sensitivity: –103.5 dBm for 6 dB S/N with 1 kHz 30% mod.
  • Audio output: 100 mW minimum into 500 ohm load; external amplifier required to drive cockpit speaker

UHF Glideslope Receiver

  • Flag Sensitivity Set to –86dBm (Actual Sensitivity Exceeds –107dBm)
  • 329.15 MHZ to 335.00 MHZ operation
  • Meets RTCA DO-192 requirements
  • CDI output: ±150 mV full scale
  • Centering accuracy: 0 ddm ± .0091 ddm

Basic System includes:

  • IFD540 GPS/NAV/COM (10W, Black bezel)*
  • Synthetic Vision Enablement
  • MK10 Keyboard
  • WiFi/Bluetooth Activation
  • FLTA/500' Activation
  • Install kit, tray, backplate, and product information kit

*GPS antenna, if needed, is not included in price.

Additional Enablements & Options:

  • RS170 video input, capable of displaying video from aircraft-mounted IR/EVS or other compatible sources.
  • 16W VHF Activation
  • Radar Enablement Activation

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