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SD-669CR 136-174MHz VHF Handheld Antenna | 2.0dBi SMA-Female 200mm Two Way Radio Antenna
The SHENGDA SD-669CR is a VHF handheld antenna designed for 136–174MHz communication systems. With 2.0dBi gain, low VSWR (<1.5), and 50 Ohm impedance, it provides stable and efficient signal transmission for two way radios.
Featuring a 200mm length, SMA-Female connector, and durable ABS rubber construction, this omni-directional antenna is ideal for professional and amateur handheld radio applications.
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Product Details
Model No.:SD-669CR
Type:Two way radio antenna
Place of Origin:China
Frequency Range:136-174MHz
Gain:2.0dBi
Connector:SMA-Female
V.S.W.R:Less than 1.5
Impedance:50ohm
Accept OEM:yes
Length:200mm
Material:ABS Rubber
Product Overview
The SD-669CR is engineered for VHF frequency operation within 136–174MHz, making it suitable for a wide range of handheld radios used in security, industrial, marine, and field communication environments.
Its 200mm length offers improved signal performance compared to shorter stock antennas, while maintaining portability and ease of use.
Electrical Specifications
Frequency Range: 136–174 MHz
Gain: 2.0 dBi
Low VSWR ensures efficient power transfer with minimal signal reflection, supporting clear and reliable communication.
VSWR: Less than 1.5
Impedance: 50 Ohm
Polarization: Vertical
Radiation Pattern: Omni-directional
Performance Characteristics
Length: 200 mm
Connector: SMA-Female
The ABS rubber construction provides flexibility, durability, and resistance to bending or cracking during daily use.
Material: ABS Rubber
Color: Black
NOTICE
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.




