Budget Transponders: Sandia Versus Garmin

With ADS-B, Mode A/C transponder performance is critical. Sandia’s STX 165 and Garmin’s GTX 325 both pack a modern punch.

Now that you’ve equipped for the ADS-B mandate, you’ll need to make sure the transponder remains in good working order. Ones that aren’t are on the FAA’s enforcement list. There are plenty of aircraft for sale that need transponder (and ADS-B) upgrades, and as we’ve advised for years, the age and health of the existing […]
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