Comet SB-4 duo-band mobile antenna VHF/UHF 0.92m
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Vai al moduloDual Band Fold-Over Mobile Antenna 144/430 MHz
The Comet SB-4 is a dual band fold-over mobile antenna designed for simultaneous operation on 144 MHz (2-meter band) and 430 MHz (70-centimeter band) — the most widely used bands in mobile amateur radio. The fold-over mechanism makes it ideal for everyday use in urban environments, low-clearance car parks, or covered storage, without the need to remove the antenna from the vehicle.
Technical Specifications
| Specification | Value |
|---|---|
| Frequency Range | 144 MHz / 430 MHz |
| Gain | 3.0 dBi (144 MHz) / 5.5 dBi (430 MHz) |
| Configuration | 1/2λ at 144 MHz / 2 × 5/8λ at 430 MHz |
| Length | 0.92 m |
| Weight | 135 g |
| Maximum Power | 60 W |
| Connector | PL-259 (MP) |
Performance and Radiating Configuration
The SB-4 uses a 1/2λ configuration at 144 MHz and 2 × 5/8λ at 430 MHz, optimising gain across both bands: 3.0 dBi at 144 MHz and 5.5 dBi at 430 MHz. The PL-259 connector ensures immediate compatibility with the majority of dual band mobile transceivers. Weighing just 135 g with a length of 92 cm, it delivers an excellent balance between performance and compact form factor.