--- product_id: 194298955 title: "THUNDER" brand: "sirio antenne" price: "RM525" currency: MYR in_stock: true reviews_count: 9 url: https://www.desertcart.com.my/products/194298955-thunder store_origin: MY region: Malaysia --- # 300W Max Power (Short Burst) 1/4 Ξ» Helical Loaded Dipole 25-29 MHz Frequency Band THUNDER **Brand:** sirio antenne **Price:** RM525 **Availability:** βœ… In Stock ## Summary > πŸ“‘ Stay Connected, Stay Ahead – The THUNDER 27 Means Business! ## Quick Answers - **What is this?** THUNDER by sirio antenne - **How much does it cost?** RM525 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/194298955-thunder) ## Best For - sirio antenne enthusiasts ## Why This Product - Trusted sirio antenne brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Power to Connect:** Handles up to 300 watts short-time power for robust, clear communication. - β€’ **Plug & Play Ready:** Standard UHF Female (PL259) connector for seamless integration with your setup. - β€’ **Wide Frequency Range:** Optimized for 25-29 MHz, covering all essential CB channels with β‰₯5 MHz bandwidth. - β€’ **Compact & Lightweight:** At just 0.7 kg, easy to install and perfect for mobile or fixed use. - β€’ **Effortless Signal Mastery:** Helical loaded design ensures superior reception without needing a ground plane. ## Overview The THUNDER 27 is a fixed 1/4 wavelength helical loaded dipole CB antenna designed for 25-29 MHz frequency range. It delivers a gain of 2.15 dBi and supports up to 300 watts short-time power, independent of ground plane requirements. Lightweight and easy to install with a UHF female connector, it’s ideal for reliable mobile and fixed communication in challenging signal areas. ## Description From the manufacturer Sirio Antennas THUNDER 27 Electrical Data Type: 1/4 Ξ» Loaded with helical winding Radiation: Omnidirectional Polarization: Linear Vertical Fequence Band: 25-29MHz No calibration required Systems: 10m-ham Gain: 0 dBd - 2.15 dBi Bandwidth: β‰₯ 5MHz @ ROS ≀ 2 Maximum power: 100 Watts (CW) continuous 300 Watts (CW) for short time Size Height (approx): 960 mm / 3.15 m Weight (approx): 700 g / 1.54 lbs Cb Antenna ΒΌ Ξ» loaded with helical winding, stainless steel stylus/black The THUNDER 27 antenna perfectly solves all installation problems where space is limited and for all your temporary installation needs. All accessories are included for installation Materials Aluminium, Copper, Galvanized Steel, Nylon Review: Antenna - Good quality and quick delivery Review: Signal strength - Mobile comunication between family cars. Cheaper than mobile phones. We live in a very bad signal area. ## Features - Configuration: 1/4 Ξ» elical loaded - Frequency band: 25 - 29mhz - Bandwidth: β‰₯ 5mhz swr ≀ 2 - Maximum power: 100 watts (cw) continuous, 300 watts (cw) short time - Connector: UHF Female (PL259) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JW14HWN | | Antenna | Radio | | AntennaDescription | Radio | | Best Sellers Rank | 81,061 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 282 in Radio Antennas | | Brand | SIRIO antenne | | Brand Name | SIRIO antenne | | Colour | Black/Aluminium | | Customer Reviews | 3.9 out of 5 stars 225 Reviews | | Global Trade Identification Number | 08056182110176 | | Impedance | 50 Ohms | | Item Type Name | Fixed Cb Antenna | | Item Weight | 0.7 Kilograms | | Manufacturer | Sirio Antenne | | Manufacturer Part Number | THUNDER 27 | | Maximum Range | 0.32 Metres | | Maximum range | 0.32 Metres | | Model Number | 2107902.00 | | Number of Channels | 1 | | Number of Items | 1 | | Number of channels | 1 | | Unit Count | 1.0 count | ## Product Details - **Antenna:** Radio - **Brand:** SIRIO antenne - **Colour:** Black/Aluminium - **Global Trade Identification Number:** 08056182110176 - **Impedance:** 50 Ohms - **Manufacturer:** Sirio Antenne - **Maximum range:** 0.32 Metres - **Number of channels:** 1 - **Number of items:** 1 ## Images ![THUNDER - Image 1](https://m.media-amazon.com/images/I/41PJJhvmfCL.jpg) ## Questions & Answers **Q: Is this item easy to swr in?** A: No swr needed however it can be high if near certain objects , mines just under 2 works canny **Q: How do you SWR this antenna ?** A: You don’t it works against precise coax length **Q: What is the range** A: On a good day I managed to get to Spain Germany and Poland but conditions have to be right **Q: I'm new to this so apologies if this is obvious, does this antenna require ground plane?** A: I've never had ground plane on mine and there hasn't been any problems ## Customer Reviews ### ⭐⭐⭐⭐⭐ Antenna *by S***S on 16 January 2025* Good quality and quick delivery ### ⭐⭐⭐⭐⭐ Signal strength *by T***K on 11 February 2022* Mobile comunication between family cars. Cheaper than mobile phones. We live in a very bad signal area. ### ⭐⭐ Not a very good antenna at all *by R***K on 1 January 2024* I should have read the reviews before I bought this am ten floors up and the reception is very poor indeed ## Frequently Bought Together - SIRIO antenne THUNDER 27, Fixed CB Antenna 1/4 Ξ» Helical Loaded Dipole, Frequency 25-29MHz Pretarated, Independent of Ground Plane, Gain 2.15 dBi, Maximum Power 300 Watts (CW) Short Time, A - Mcbazel Surecom SW-114 SWR/RF/Field Strength Power Test Meter - PL259 Cable RG58 CB Radio Cable PL259 Jumper 32.8ft (10M) SO239 UHF Male to Male Extension Cable Low Loss RF Black Coaxial Cable PL259 Coax Cable for Two Way RadioWireless LAN Devices --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.my/products/194298955-thunder](https://www.desertcart.com.my/products/194298955-thunder) --- *Product available on Desertcart Malaysia* *Store origin: MY* *Last updated: 2026-07-01*