Everhardt ST-3

The Everhardt ST-series antennas, including the ST-3, are perfectly tuned to the standard 40 27MC channels and offer excellent performance for high-power communications. These rugged antennas from Marvel Communications, made in Texas, USA, are top-loaded and helically wound around a 3/8 inch fiberglass rod, specifically designed for high-power transceivers.

Features of the Everhardt ST-3 antenna:

• Frequency Range : Tunable between 26 - 29 MHz, allowing you to tailor the antenna to your specific needs.
• Full-Wave Antenna : Provides improved signal transmission and performance.
• Maximum Power : Supports an impressive 1500 Watts of 'Talking Power' for powerful communications.
• Trim-to-Tune functionality : Easily tune within the frequency range for optimum performance.
• Durable Design : Features the exclusive 'VibraSorb' anti-breakage design, which extends the life of the antenna.
• Electrical type : Top loaded / full-wave antenna, designed for maximum efficiency.
• VSWR : Excellent VSWR of <1.5:1 over 40 channels, ensuring optimal signal transfer.
• Impedance and polarization : An impedance of 50 Ohms with linear vertical polarization for better reception.
• Material : Made of high quality fiberglass for durability.
• Dimensions : At 900mm high and weighing 275g, the ST series is both strong and lightweight.
• Color Options : Available in black or white to match your installation.
• Mounting Type : Suitable for 3/8 female (stud) mounting, which makes installation easier

Trim-to-Tune: Adjusting the SWR of the Everhardt ST-3 Antenna:

1. Remove the cover from the antenna.
2. Remove the foil until your antenna wire coil is visible.
3. Carefully pull the thread out and cut a small piece off. Don't cut too much of the thread at once.
4. Push the thread back into the thread spool.
5. Put the cover cap back on the antenna.
6. Measure the SWR. If necessary, repeat steps 1 through 5 until you have a good SWR.