Antenna Preamplifier Telkom-Telmor PAR-820 — model ANT0723

Telkom-Telmor PAR-820 (model ANT0723) is an antenna preamplifier engineered to increase weak RF signals at the antenna feed before they travel down the coaxial cable to the receiver. Designed for terrestrial TV and radio antenna systems, the unit is intended to be mounted close to the antenna to compensate for cable loss and preserve signal-to-noise ratio. It supports integration into standard coaxial antenna installations and is suitable for improving reception in areas with marginal signal strength.

Advantages

The preamplifier provides low-noise amplification to raise signal levels without significantly increasing noise, helping restore usable signal where line attenuation otherwise reduces quality. Its compact design allows mounting at the antenna mast, reducing the length of unamplified coaxial run and improving overall reception stability. The device is compatible with common terrestrial broadcast bands and is built for straightforward integration with existing coaxial systems.

Suitable for

• Terrestrial DVB-T/T2 TV reception in areas with weak signal
• FM and DAB radio antenna systems requiring improved sensitivity
• Long coaxial cable runs where cable loss degrades signal
• Outdoor antenna installations on roof or mast where mast-mounted amplification is preferred

Key specifications

• Function: mast-mounted antenna preamplifier for terrestrial broadcast signals
• Application: VHF/UHF terrestrial TV and radio frequency bands
• Mounting: designed for installation near the antenna on mast or bracket
• Connection: compatible with standard coaxial cable systems
• Performance focus: low-noise amplification to improve signal-to-noise ratio and compensate for cable loss

How to use

Install the preamplifier as close to the antenna feed point as practical, securing it to the mast or antenna support. Connect the antenna feed to the preamplifier input and run a single coaxial cable from the preamplifier output to the receiver or distribution amplifier. Power the unit according to the system’s power-injection method (e.g., via a line power supply or through the receiver/distribution amplifier if supported). Verify connectors are weatherproofed if installed outdoors to prevent moisture ingress.

Usage recommendations

Use the preamplifier when signal levels at the receiver are low due to distance or cable attenuation; avoid using excessive gain in scenarios where the antenna receives strong local signals, as overloading can cause distortion. For outdoor installations, apply appropriate sealing to coaxial connections and ensure the mounting position provides stable mechanical support and adequate exposure to the antenna’s line-of-sight.