Telkom-Telmor 5G FAR 48 LTE SAW LPF 686MHz antenna filter ANT0720.1

Telkom-Telmor 5G FAR 48 LTE SAW LPF 686MHz antenna filter ANT0720.1 is a low-pass SAW (Surface Acoustic Wave) filter designed for 5G and LTE radio systems. The filter is tuned to provide attenuation above 686 MHz, helping to suppress out-of-band signals and reduce interference in antenna feeds and base station front-ends. It is intended for use in telecom installations where improved adjacent-band rejection and stable frequency response are required.

Advantages

The SAW-based low-pass design delivers consistent filtering performance with good temperature stability and compact size, enabling installation in constrained rack or mast spaces. By attenuating frequencies above the 686 MHz cutoff, the filter reduces intermodulation and spurious reception from adjacent transmitters and unwanted broadcast signals. Its form factor and connector compatibility facilitate integration with existing antenna systems and cabling without major modifications.

Suitable for

• 5G and LTE base station antenna lines requiring suppression of higher-frequency interference
• Outdoor and indoor telecom antenna deployments where improved signal selectivity is needed
• Radio installations and repeater systems that benefit from reduced out-of-band noise
• Maintenance or upgrade projects to enhance receiver sensitivity in congested RF environments

Key specifications

• Filter type: Low-pass (SAW)
• Nominal cutoff frequency: 686 MHz
• Intended application: 5G and LTE signal paths
• Function: Attenuation of out-of-band and higher-frequency signals
• Typical use: Inline installation between antenna and radio or distribution hardware

How to use

Install the low-pass filter inline in the RF feed between the antenna and the radio, repeater, or base station transceiver. Ensure proper connector type and torque for weatherproof or indoor connections and maintain correct polarity where applicable. Verify that the filter orientation and mounting do not introduce excessive cable stress or bend radius violations. After installation, test the system for expected passband insertion loss and improved adjacent-channel suppression using a spectrum analyzer or service tool.

Usage recommendations

Use this SAW LPF where suppression of signals above 686 MHz is required to improve receiver selectivity and reduce interference. Combine with proper grounding, surge protection, and antenna alignment for best system performance. Avoid exposing the filter to conditions outside its specified environmental ratings and consult installation guidelines for connector sealing and mounting.