F21 400-520MHz Two Way Radio Antenna | 2.15dBi UHF 16cm Flexible Handheld Antenna 50W
The F21 is a compact UHF two way radio antenna designed for 400–520MHz communication systems. With 2.15dBi gain, low VSWR (≤1.5), and 50W power handling, it delivers stable and efficient signal transmission for handheld radios.
Constructed from durable TPE and copper materials, this 16cm antenna provides flexibility, durability, and reliable omni-directional coverage for professional and amateur radio applications.
- Model No.
- F21
- Type
- Two way radio antenna
- Place of Origin
- China
- Frequency Range
- 400-520 MHz
- Gain
- 2.15dBi
- V.S.W.R
- Less than 1.5
- Impedance
- 50ohm
- Accept OEM
- yes
- Length
- 160mm
- Material
- TPE,Copper
Product Overview
The F21 is engineered for UHF frequency operation within 400–520MHz, making it suitable for a wide range of handheld two way radios. Its 16cm compact design ensures portability while maintaining effective communication performance.
Built with high-quality copper radiating elements and a flexible TPE outer layer, the F21 combines durability with optimized signal transmission.

Electrical Specifications
-
Frequency Range: 400–520 MHz
-
Gain: 2.15 dBi
-
Low VSWR ensures efficient power transfer and reduced signal reflection, contributing to stable communication performance.
-
VSWR: ≤ 1.5
-
Impedance: 50 Ohm
-
Maximum Input Power: 50W
-
Polarization: Vertical

Performance Characteristics
-
Height: 16 cm
-
Material: TPE (outer layer) + Copper (radiator)
The flexible structure helps resist bending damage during daily use, making it suitable for field and professional environments.
-
Radiation Pattern: Omni-directional


- 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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