The MAAS Elektronik YELLOWSTAR-27 is a premium 5/8 wave CB base antenna engineered in Germany for serious 27 MHz operators who want performance, durability and portability in one package.

Constructed from high-quality aluminium, this antenna is lightweight yet extremely robust, making it ideal for permanent home installation or portable expedition setups. The threaded section design allows for quick assembly and disassembly — packing down to just 1.1 metres for easy transport.

If you’re looking for a high-gain, high-power CB base antenna that performs as well on a field trip as it does on a rooftop mast, the YELLOWSTAR-27 is hard to beat.

Why Choose the YELLOWSTAR-27?

✔ 5/8 Wave design for improved ground wave performance
✔ Covers full CB Band: 26.2 – 27.8 MHz
✔ 5.5 dBi gain for extended range
✔ Handles up to 500 Watts
✔ Breaks down to 1.1m for portability
✔ Strong aluminium construction
✔ Ideal for home base or expedition use

Perfect For:

• Home base CB stations

• 4×4 expeditions

• Temporary field setups

• Events and portable operating

• High-power AM/FM/SSB CB setups

Technical Specifications

• Model: YELLOWSTAR-27

• Brand: MAAS

• Type: 5/8 Wave Base Antenna

• Frequency Range: 26.2 – 27.8 MHz

• Gain: 5.5 dBi

• Polarisation: Vertical

• Impedance: 50 Ohms

• VSWR: < 1.5

• Maximum Power: 500 Watts

• Total Length: 6 metres

• Radials: 3 × 90 cm

• Connector: PL Female (SO-239)

• Mast Compatibility: 30 – 55 mm diameter

• Material: Aluminium

Performance Advantage of 5/8 Wave Design

The 5/8 wave configuration provides a lower radiation angle compared to 1/4 wave antennas, giving you better ground-wave propagation and improved local range — ideal for UK CB conditions.

Installation Notes

• Mount to a suitable mast (30–55mm diameter).

• Use quality 50 Ohm coax (RG213 recommended for base use).

• Check SWR before full power operation.

• Ensure correct grounding for optimal performance.