Description
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.








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