Aviation's Panel Mount Avionics Installation Leader

Trig's TX56A and TX57A Nav/Com units provide the ideal platform to update legacy avionics or equip your new aircraft. Slimline and highly efficient both Nav/Com models are housed within a superbly engineered case. At only 1.3” high each unit saves valuable space yet contains an impressive selection of practical features for any pilot.

You might be a VFR pilot wanting VOR navigational back up, a flight school seeking an easy to use training platform or a serious VFR/IFR operator looking for reliable digital capabilities. Trig's "better by design" approach has created a Nav/Com that meets all these requirements - it will enhance your navigation and communication throughout all phases of flight.

Ease of installation

The TX56A and TX57A’s low profile design requires no external cooling fans. Each unit is designed to easily replace legacy equipment, which includes popular; KX155A and SL 30 models.

Features that matter

The TX56A has a 10 watt Com radio, suited for most general aviation use. The TX57A has a more powerful 16 watt Com radio, where a higher transmission output is required.

Each unit has an easy to read display showing both navigation and communication frequencies and identifiers. Maximum clarity is achieved by giving prominence to the active Nav or Com mode. The unique ‘Push Step’ knob allows the fastest tuning across voice channels, ensuring you can focus on flying whilst communicating. The Dual Watch feature allows you to monitor two Com or Nav frequencies at the same time - it’s like having a second radio. The Com functions include the ability to select most recently memorised database frequencies or those displayed on a compatible active GPS track. The radio also features Trig’s ‘Say Again’ technology - a single button press replays the last radio transmission. The Com also features a built in two place intercom with inputs for stereo music and auxiliary audio warnings.

The Nav receiver is optimised to provide stress free operation. Both the TX56A and TX57A will decode Morse, identifying VORs or ILS. The Nav receiver can monitor a second VOR which significantly enhances route navigation. This means that a standby VOR radial can be displayed in addition to the primary VOR - allowing the pilot to quickly calculate an accurate position fix.

The unit display features a graphical CDI (course deviation indicator). This allows the pilot to navigate without an external CDI. The TX56A also provides support for various display options, using a range of external cockpit instruments.

Automatic centring of the CDI needle displays a direct bearing to a selected VOR for ease of navigation whilst the to/from button allows you to display the inbound or outbound radial.

Integration benefits

Trig Nav/Com’s benefit from having a built in VOR/LOC converter and can also support a composite output. This ensures the widest compatibility with installed indicators. The TX56A and TX57A can also tune a remote DME in addition to supporting digital EFIS and PFD indicators. The ability to integrate the Nav/Com with a suitable GPS (Garmin protocol) allows the automatic display of frequencies along a flight route. Finally, a customizable database can be loaded via the handy USB port, this can contain over 200 of your Com and over 200 Nav frequencies and identifiers.

  • Slimline – only 33mm high
  • Bright, clear display / simple user interface
  • Unique ‘Push Step’ for faster tuning
  • Dual Watch – monitor two com or two nav frequencies at the same time
  • ETSO and TSO approval (pending)
  • Stereo music / two place intercom
  • ‘Say Again’ feature – allows playback of last transmission
  • USB port on facia – upload over 200 com and nav frequency database (CSV file)
  • VOR/ILS receiver – monitor a 2nd VOR
  • Built in VOR/LOC converter
  • Highly efficient – no cooling fans or external cooling required
  • Ideal retro-fit for legacy radios – same height as an SL30 and KX155A
  • Unbeatable quality – designed and manufactured in the U.K.
  • Two year worldwide warranty

  • Weight: 2.42 lbs
  • Front Panel Dimensions: 1.3"H x 6.26"W
  • Product Dimensions (in tray): 1.3"H x 6.26"W x 10.63"L
  • Supply Voltage (DC) 11 – 33 V

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Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.