136-174MHz 3dBi N Female connector VHF Ceiling Antenna

Product Introduction

1.Optimized for VHF band, ensuring stable and reliable communication. The antenna precisely covers the 136-174MHz VHF band with a bandwidth of 3MHz, designed specifically for professional walkie-talkies and dispatch communications, ensuring stable signal transmission.

2.Ceiling mount, space-saving and aesthetically pleasing. Featuring a ceiling mount design, measuring only Φ160×90mm and weighing 0.25kg, it saves floor space and is suitable for various indoor environments.

3.Low VSWR, high transmission efficiency. VSWR≤1.5 and impedance 50Ω ensure low signal transmission loss and high communication efficiency, suitable for demanding communication systems.

4.High power handling capacity, robust and durable structure. Supports a maximum power of 50W and wind resistance up to 60m/s. The nut-fixing method ensures stable installation and is suitable for long-term operation.

5.Customizable interfaces, flexible system adaptation. Standard N-Female interface, while also supporting customization of other interface types to meet the connection needs of different devices.

Application Scenarios

* Intercom signal coverage in office buildings, shopping malls, and hotels

* Internal dispatching and security communication systems in factories and warehouses

* Emergency communication and broadcasting systems in hospitals, schools, and stadiums

* Voice communication support in security monitoring systems

* Wireless communication coverage for temporary event sites

Product Installation Instructions and Maintenance Manual

1. Installation Instructions: First, drill a round hole ② with a diameter of Φ33mm to Φ 35mm on Then, insert antenna ① into the hole, and using nut ③ tighten antenna to the  ceiling ② Where: ① Antenna; ② Ceiling; ③ Nut. 

2. Storage and Transportation: A. Store in a dry environment at normal temperature.  B. Handle with care during transportation, and protect from rain and moisture. 

3. Note: Keep the antenna away from fire and other heat sources.

FAQ

Q: What frequency range does this antenna support?

A: It supports 136-174MHz, which is commonly used for VHF two-way radio communication.

Q: Is this antenna suitable for outdoor use?

A: It is designed for indoor ceiling mounting. For outdoor use, additional environmental protection is required.

Q: What is the gain of the antenna?

A: The antenna has a gain of 3dBi, suitable for medium-range indoor coverage.

Q: Does it include mounting hardware?

A: Yes, it is designed for fixed installation with nuts. Mounting accessories may be included based on order configuration.

Q: Can the connector be customized?

A: Yes, the standard connector is N Female, but other connector types can be customized upon request.

Q: What is the VSWR performance?

A:VSWR is ≤1.5 across the operating frequency range, ensuring efficient signal transmission.