RFI - VHF Unity Gain S/S Whip 136-175MHz SW2
$43.29
GST Inclusive. Discounts and Shipping calculated at checkout.
Quantity
Pickup available from the Mobile Systems Showroom: 1/14 Portside Drive, Mount Maunganui. We will notify you when your order is ready for collection.
In stock, ready to be shipped
RFI SW2 VHF Unity Gain Stainless Steel Whip Antenna, 136–175MHz
The RFI SW2 VHF Unity Gain Stainless Steel Whip Antenna is a durable, high-performance antenna designed for professional mobile radio systems operating across the 136–175MHz VHF frequency range. Whip only, cable and connector sold separately.
Overview
Built for commercial, industrial, and government applications, the SW2 provides reliable, consistent communications where maximum durability and dependable coverage are essential.
Featuring a unity gain design, the SW2 delivers an even omnidirectional radiation pattern, making it ideal for use in varied terrain where maintaining signal coverage in all directions is more important than maximising distance. Constructed from parallel stainless steel with a chrome-plated ferrule, this whip is engineered to withstand the harsh conditions experienced by commercial vehicles operating throughout New Zealand.
Key Features
- Covers the full 136–175MHz VHF range means one whip handles a wide span of licensed VHF channels.
- Unity gain, omnidirectional performance means consistent coverage in all directions, for vehicles working across hilly, urban, or uneven terrain.
- Heavy-duty parallel stainless steel whip means excellent flexibility, vibration resistance, and corrosion resistance for demanding fleet use.
- Chrome-plated ferrule means a durable, corrosion-resistant fitting point that stands up to daily use.
- Field-tuneable to minimum VSWR means you can dial in the best performance for your exact operating frequency within the band.
- Rated to 100W input power means it handles serious mobile radio transmit power without drama.
Applications
- Transport and logistics
- Utilities and civil construction
- Forestry and agriculture
- Mining operations
- Local government and emergency services
- Security and industrial communications
What's in the Box
- 1 x RFI SW2 stainless steel whip, chrome-plated ferrule
- Not included: mounting base, coaxial cable, and connector, sold separately
Compatible Mounting Brackets
This whip mounts via a roof-mount base. MSL stocks:
You'll also need a coaxial cable and connector to suit your specific install. Talk to us and we'll help you choose the right length and connector type.
Key Specifications
| Brand | RFI |
| Model | SW2 |
| Frequency range | 136–175MHz |
| Gain | Unity, over a 1/4 wave whip |
| Tuned bandwidth / VSWR | 6% at <1.5:1 (typically at 150MHz), field-tuneable |
| Power handling | 100W |
| Whip length | 633mm |
| Whip material | Parallel stainless steel, chrome-plated ferrule |
| Cable and connector | Not included, sold separately |
Download the RFI SW2 installation sheet (PDF)
Related Whip Options
Looking for a different whip style or length in a similar VHF band? See RFI TSW125 (1.25m tapered stainless steel unity gain whip).
Video
No product video currently available for this model.
Why Buy From Mobile Systems Limited?
Mobile Systems Limited supplies professional radio communication solutions throughout New Zealand. Our experienced team provides:
- Mobile radio system design
- Vehicle antenna selection
- Professional installations
- Fleet communication solutions
- Antenna tuning and testing
- Radio programming
- Ongoing servicing and technical support
Whether you're installing a single mobile radio or managing an entire fleet, we'll help you choose the right antenna for reliable communication.
Frequently Asked Questions
What frequencies does the SW2 cover?
The SW2 is designed to operate across the 136–175MHz VHF frequency range, making it suitable for many licensed land mobile radio systems.
What is a unity gain antenna?
A unity gain antenna provides an even radiation pattern, making it ideal for maintaining reliable communications in hilly, urban, or uneven terrain where signal coverage in all directions is important.
Is the SW2 suitable for commercial vehicles?
Yes. The SW2 is designed for commercial fleets, utilities, agriculture, forestry, transport, emergency services, and industrial applications.
Is the whip made from stainless steel?
Yes. The parallel stainless steel radiator with a chrome-plated ferrule provides excellent durability, corrosion resistance, and long service life.
Does the antenna include a base, cable, and connector?
No. This is a whip-only listing, a mounting base, cable, and connector are sold separately to suit your specific installation.
Can Mobile Systems Limited install this antenna?
Yes. We supply, install, tune, and test RFI antennas and complete two-way radio systems for businesses and organisations across New Zealand.
Specifications
RFI - VHF Unity Gain S/S Whip 136-175MHz SW2
$43.29