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In-Line Amplifier, L1L2, 21dB (LA-21-L1L2)

Item# LA-21-L1L2

Typically, when antenna cable runs exceed 50 feet, signal loss can become excessive. The Forsberg StarLink in-line amplifiers eliminate this problem by amplifying the GNSS signal. This includes GPS, GLONASS, Galileo, BEIDOU, SBAS and L-Band. With the proper amplifier, you can extend your antenna cable runs to hundreds of feet. View Full Description

Category: Amplifiers
Manufacturer: Forsberg Services Ltd.
Manufacturer Number: LA-21-L1L2
Forsberg Services Ltd.
Price: $299.00 - $325.00

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Forsberg StarLink In-Line Amplifiers (Formerly Raven)

Formerly Raven part number LA-21-L1L2, now owned by Forsberg, this L1L2, 21dB in-line amplifier can help prevent degradation in GPS receiver performance from using antenna cables that are too long (greater than 50 feet), or from exposure to electromagnetic interference (EMI).
These in-line amplifiers are a convenient way to boost and filter GPS signals before they reach the receiver. They are easy to install and are designed to be rugged and waterproof, for effective use anywhere that's safe for a GPS antenna or cable.

These inline amplifiers are capable of amplifying all GNSS frequencies and will improve performance on receivers with cable lengths of over 50 ft. They’re available with SMA, TNC, BNC, or N connectors and no special wiring is required, making installation a breeze.

Made with gold plated brass with rugged and watertight packaging, all you need to do is plug the amplifier directly inline with your antenna cable. Power to the GPS amplifier is already available from your GPS receiver. The amplifier uses the same power as the antenna so no extra wiring is required. These Forsberg StarLink inline amplifiers come with a full one year parts and labor warranty from the manufacturer.


In-line amplifiers with TNC connectors are 3.770” in length. Length will vary slightly with “N” and “SMA” connectors installed. ?

  • Power consumption 8mA.
  • Typical Noise figure for L1 Inline Amplifiers is < 3 dB.
  • Typical Noise figure for L1L2 Inline Amplifiers is < 4 dB.
  • Input voltage for all models is from 3 to 28 VDC. Current draw is < 10 ma.
  • Operating temperature is -55°C (-67°F) to 85°C (185°F)
  • Relative humidity 0 - 100% condensing