SuperMount MP1 Spike System for Enhanced Ham Radio

The UM3SP SuperMount is a ground spike mount designed for portable vertical antennas. It is part of the MP1 series and is suitable for field deployment, backpacking, DXpeditions, EmComm operations, and base installations. The mount features a strong aircraft-grade aluminum frame and measures approximately 12 inches by 1.6 inches by 3.0 inches, making it compact and easy to carry in a go bag. It provides coaxial and radial connections, with two quarter-inch male push-on quick disconnect tabs for radials. The mount has a 3/8-16 threaded hole for attachment to the Sp3 SuperSpike, Tm4 SuperPod, or some pro studio tripods.

The durable aircraft aluminum ground spike also has a 3/8-16 thread on top to connect with the mount. It is compatible with all equipment using a 3/8-24 female thread, including ham radios, HF mobile antennas, and CB mobile antennas.

The connector is a So-239 (PL-259) with a 50-ohm impedance. The package includes the UM3SP SuperMount and the Sp3 SuperSpike, finished in natural metallic silver. Ground spike mount for portable vertical antennas. Enables rapid deployment in any environment. Ground spike mount for portable antennas. So-239 (PL-259) connector with 50 ohm impedance.

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