Trig’s TX56 and TX57 Nav/Com units provide the ideal platform for upgrading your legacy avionics or equipping your new aircraft. Compact and highly efficient, both Nav/Com models are housed in a beautifully designed enclosure. At just 33mm tall, each unit saves valuable space while providing an impressive selection of practical features for any pilot.
Whether you are a VFR pilot looking for backup for VOR navigation, a flight school looking for 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 of these requirements. It will improve your navigation and communication throughout the different phases of flight.
TX56 and TX57 product features:
- Channel Spacing: Available in 8.33 kHz or conventional 25 kHz.
- Transmit power: choice of 10 Watts or 16 Watts.
- TX56A and TX57A versions: 760 channel radio versions (not 8.33 kHz, for use outside Europe).
These models are designed to provide a reliable and high-performance solution, whether updating an existing aircraft or equipping a new aircraft, while optimizing space and functionality.
Features of the TX56 and TX57 Nav/Com units:
Push Step
The Nav/Com display is clear and bright, showing both primary and secondary frequencies as well as airport/VOR identifiers. The ‘Push Step’ button allows for quick changes from 8.33kHz to 25kHz (TX56/TX57) or 25kHz to 50kHz (TX56A/TX57A), allowing you to quickly set up your Nav/Com without compromising your visual observation. The Dual Watch feature allows you to monitor two comm or navigation frequencies simultaneously, giving you the equivalent of two radios in one.
Say Again
The Nav/Com has a ‘Say Again’ function. With the push of a button, the last radio transmission is replayed. This feature is ideal for student pilots, but can be useful to all pilots, as it avoids the embarrassment of having to request a transmission from the control tower again.
VOR
The Nav receiver is optimized to provide stress-free operation. The TX56 and TX57 can decode Morse signals, allowing VORs or ILSs to be identified. The Nav receiver can also monitor a second VOR, greatly improving en-route navigation. This means that a backup VOR radial can be displayed in addition to the primary VOR, allowing the pilot to quickly calculate an accurate position.
Integrated CDI
The unit’s display features a graphical CDI (Course Deviation Indicator), allowing the pilot to navigate without the need for an external CDI. The TX56 also offers support for multiple display options, using a range of external cockpit instruments.
Once set, the Nav receiver can identify the station by decoding its Morse ID, allowing it to automatically identify the selected VOR. The CDI’s automatic needle centering displays a direct heading to the selected VOR for easy navigation, while the To/From button allows you to display either the incoming or outgoing radial.
Product design
The Nav/Com’s low-profile design does not require external cooling fans. Its compact size and features make it an excellent choice for forward or retrofit installations. Each Nav/Com is designed to integrate easily with legacy products. For example, the popular SL30 is the same height as a TX56, allowing customers replacing KX155 and KX165 models to easily fit a TX56 into their avionics stack. In all cases, a TX56 tray will need to be installed to ensure proper mounting.
