The Strong SRT F1 is an indoor LTE (4G) rejection filter designed to be placed in-line between coaxial cables in a DVB-T antenna distribution system. It attenuates LTE (4G) signals in the 790–862 MHz range (UHF channels C61–69) by 30–50 dB, eliminating interference from nearby 4G transmitters that can disrupt digital terrestrial television reception.

The SRT F1 passes DC voltage (up to 300 mA), making it compatible with active DVB-T antennas that are powered through the coaxial cable. Its compact F-F female connectors allow it to be placed directly between two F-type coaxial cable ends without any additional mounting hardware.

Key Features

• LTE (4G) rejection of 30–50 dB in the 790–862 MHz band (UHF C61–69)
• Frequency pass range: 5–790 MHz — covers the full DVB-T UHF spectrum
• Insertion loss: 4 dB across the pass band
• Two F female connectors for in-line coaxial cable placement
• DC power pass: 300 mA at 5 V — compatible with active DVB-T antennas
• Compact inline form factor — no mounting bracket required
• Includes IEC/F connector cable and adaptor accessory

Product Benefits

• 30–50 dB LTE rejection reliably eliminates 4G interference from the television signal path
• DC pass at 300 mA means active antennas continue to receive power through the same coaxial cable — no rewiring needed
• F-F female connectors allow direct in-line installation between existing coaxial cable segments
• Coverage from 5 to 790 MHz leaves the entire analogue and digital terrestrial TV spectrum intact
• Compact dimensions make it easy to tuck behind a TV or antenna distribution point

Technical Specifications

• Model: Strong SRT F1
• Filter Type: LTE (4G) rejection filter
• Frequency Pass Range: 5–790 MHz
• Insertion Loss: 4 dB
• LTE Rejection (790–862 MHz, UHF C61–69): 30–50 dB
• GSM Rejection (880–960 MHz): —
• Connectors: 2 × F female
• DC Power Pass: 300 mA
• Mounting: Indoor use
• Dimensions: 80 × 25 × 15 mm
• Accessory Included: IEC/F connector cable and adaptor

Why You'll Love It

• Straightforward inline installation — no tools needed, just connect it between two F-type cable ends
• Solves LTE interference problems without replacing the existing antenna or cabling
• DC pass means it works transparently with powered (active) antennas already in place
• Included IEC/F adaptor provides extra installation flexibility when connecting to different connector types
• Compact and unobtrusive — fits in confined spaces behind equipment or inside distribution boxes