Frequency combiner is widely used in general communication network relay stations as well as various specialized and public mobile communication networks. This device can combine 2 to 16 base station transmitters into a single transmitting antenna, which not only saves the engineering costs of antennas, feeders, and tower setup but more importantly, this product uses high Q value cavities, ring isolators, and other components to effectively suppress the out-of-band noise and high-order harmonics of transmitters, improving the purity of the transmitted spectrum and fundamentally solving the intermodulation interference problems that are difficult to address in multi-antenna installation scenarios.

The device supports various customized frequencies and features low temperature drift, low insertion loss, low intermodulation, and high isolation.

Product Advantages:

Main frequency bands: 136–174MHz / 330–520MHz / 851–869MHz

Temperature and power drift: <20kHz

Insertion loss under four-channel full-temperature environment: <3.0dB

Input standing wave ratio: <1.3

Passive intermodulation index: PIM <-140dBc@2×43dBm

Supports high-power operation of 200W and above

Tuning range: 2MHz for VHF band / 5MHz for UHF band

Products can be customized to any number of channels and any frequency according to customer requirements

Terminology:

high Q cavity: high Q value cavity (original text O is a typo for Q)

PIM: Passive Intermodulation

VHF/UHF: Very High Frequency / Ultra High Frequency

standing wave: Voltage Standing Wave Ratio (VSWR)