No, the Garmin echoMAP devices do not require an external antenna for GPS capabilities. They have a built-in GPS receiver that can acquire satellite signals without any additional antennas needed.

Frequency Range: VHF 136-174MHz Direction: Omni-directional Antenna Connector: SMA Male Connector Compatible with Track and Train Handheld GPS Garmin Alpha 100 200 200i Astro 220 320 430 Package ...

Your dog can run, but it can't hide from Garmin's latest dog tracking collar. The DC 50 ups the game for the GPS company's satellite-friendly canine wearables, offering a more rugged, waterproof ...

GPS-based navigation tool with multi-band GNSS provides reliable, accurate heading and position information Garmin International Inc . has launched the MSC 10 marine satellite compass with multi-band ...

Garmin has just unveiled a trio of new Garmin Drive standalone GPS navigators for automotive at CES 2019. Meet the Garmin Drive 52, SmartDrive 55 and SmartDrive 65.

Garmin has received Brazilian National Civil Aviation Agency (ANAC) validation for its GTN 650 and GTN 750 series touchscreen avionics and GPS antennas. The approval enables the installation of ...