SD-438VU 144/430MHz Dual Band Mobile Antenna | 3.0/5.5dBi VHF UHF Car Antenna with PL259 Connector
SD-438VU is a dual band VHF/UHF mobile antenna operating at 144/430MHz, designed for vehicle-mounted radio systems. With 3.0dBi (VHF) and 5.5dBi (UHF) gain, ≤1.5 VSWR, and 50Ω impedance, it delivers stable omni-directional communication performance.
Constructed from durable stainless steel and equipped with a PL259 connector, this 800mm vertical antenna is ideal for ham radio operators, mobile communication fleets, and outdoor applications.
- Model No.
- 438VU
- Type
- Multiband Antenna
- Place of Origin
- China
- Frequency Range
- 144/430MHz
- Gain
- 3.0/5.5dBi
- Connector
- PL259
- V.S.W.R
- Less than 1.5
- Impedance
- 50ohm
- Accept OEM
- yes
- Length
- 800mm
- Material
- Stainless Steel
Dual Band Performance (144/430MHz)
The SD-438VU is engineered for reliable communication across both:
-
144MHz (VHF band) – Extended coverage and stable ground communication
-
430MHz (UHF band) – Clear signal transmission in urban or dense environments
Its optimized dual-band structure ensures balanced radiation efficiency across both frequency ranges.
Electrical Specifications
-
Frequency: 144/430MHz
-
Gain: 3.0dBi (VHF) / 5.5dBi (UHF)
-
VSWR: Less than 1.5
-
Impedance: 50 Ohm
-
Radiation Pattern: Omni-directional
-
Polarization: Vertical
-
Connector: PL259
Low VSWR helps reduce signal reflection and improves transmission efficiency, ensuring clearer and more stable communication.
Mechanical Design
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Length: 800mm
-
Material: Stainless Steel
-
Color: Black
The stainless steel whip structure provides excellent flexibility, corrosion resistance, and long-term durability, suitable for outdoor vehicle installation.
- part of antenna is individual packed in PE/PVC Bag.
- Each antenna will be tuned to best performance before delivery.
- We will provide customized packaging services based on the size of your antenna products (such as length, diameter, interface type, etc.) to ensure zero damage during transportation.
- All packages have passed the 1.2m drop test
During the installation process, avoid any collisions.
It is strictly prohibited to disassemble the antenna components; otherwise, it may lead to poor antenna performance.
The installation position of the antenna should be free of any obstructions.
When used outdoors, it is necessary to equip with lightning protection facilities.
may contain electronic components. Do not discard them randomly.
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