The Arete COBRA is a rugged, miniature, 1:1 Balanced-to-Unbalanced (BALUN) transformer for HF radio antennas. It is the perfect foundation for any portable HF dipole antenna.
The COBRA is unique product on the amateur radio market. Unlike its competitors, the COBRA has been designed as a no compromises product. Every design choice has been made to maximize ruggedness, stealthiness, flexibility and RF performance while minimizing weight. You can trust the COBRA to give you many years of service through sun, wind, rain, heat, cold, and wherever your adventures take you.
Features
- UV & shock resistant polycarbonate enclosure
- IP65 rated enclosure & vent*
- Federal Standard Coyote Brown Cerakote finish
- Stainless Steel Hardware
- Built-in Shock Cord for stabilization on portable masts or supports of opportunity
- Made in the United States of America
* An IP65 rating provides complete protection from particle ingress and is resistant to water jets sprayed from any direction. The COBRA is assembled from components that meet or exceed this rating but has not been independently tested and certified. The COBRA is not submersible.
Specifications
- Frequency Coverage: 3-30Mhz
- Power Rating: 125W @ 50% duty cycle
- Weight: 5.5 ounces / 155 grams
- Dimensions: 3.9″ W x 3.9″ H x 1.7″ D
- Characteristic Impedance: 50 ohms unbalanced to 50 ohms balanced
- Choking Impedance: Greater than 20dB from 3-30Mhz
- Insertion VSWR: Less than 1.2:1 @ 30Mhz
- Insertion Loss: 0.1dB nominal @ 30Mhz
- Screw Down Terminals: #10-32
The Arete COBRA includes the BALUN and 6x #10 uninsulated fork terminals. Wire and coax sold separately.
For more information and product documentation, please visit https://www.aretewireless.com.
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