ETL Systems Alto ALT-G1S-S3-100A Extended L-Band Low Noise Amplifier 850–2450 MHz

ETL Systems Alto ALT-G1S-S3-100A Extended L-Band Low Noise Amplifier 850–2450 MHz

The ETL Systems Alto ALT-G1S-S3-100A is an extended L-band low noise amplifier module operating from 850–2450 MHz. Designed for a compatible GENUS 1U chassis, it combines variable gain, low noise, and high linearity for satellite communications and RF signal distribution.

Gain is adjustable across a nominal −4 to +45 dB range in 0.25 dB steps. Positive slope compensation provides 0–8 dB adjustment with a pivot point at 2450 MHz, supporting compensation for frequency-dependent cable loss.

At maximum gain, the module provides a noise figure of 2 dB typ., an output P1dB of +23 dBm typ., and an OIP3 of +35 dBm typ. Specified gain flatness is ±0.6 dB across the full frequency range and ±0.2 dB over any 36 MHz.

Each hot-swappable amplifier occupies one slot in a compatible GENUS 1U chassis. Local touchscreen and remote monitoring and control are provided through the selected chassis platform.

Model: ALT-G1S-S3-100A; ordering suffix depends on configuration
Product Type: Extended L-band low noise variable gain amplifier module
Frequency Range: 850–2450 MHz
Chassis Compatibility: GENUS 1U; one slot per module
RF Ports: 50Ω SMA
Gain Range: Nominal −4 to +45 dB; ±2 dB at minimum and maximum settings
Gain Step Size: 0.25 ±0.15 dB
Slope Control: 0–8 dB; pivot at 2450 MHz; steps of 1 ±0.25 dB
Gain Flatness: ±0.6 dB full band; ±0.2 dB over any 36 MHz
Noise Figure: 2 dB typ.; 3 dB maximum, at maximum gain
Output P1dB: +23 dBm typ.; minimum +20 dBm at 850–2150 MHz and +19 dBm above 2150 MHz, at maximum gain
OIP3: +35 dBm typ.; +32 dBm minimum, at maximum gain
OIP2: +45 dBm typ.; +41 dBm minimum
Input / Output Return Loss: 18 dB typ.; 14 dB minimum
Isolation: 60 dB typ.; 50 dB minimum, with amplifier modules set to equal gain
MTBF / Weight: Greater than 150,000 hours per module; less than 0.35 kg typ.

Key Features

• Extended L-band coverage from 850–2450 MHz.

• Nominal 49 dB gain adjustment range.

• Low noise figure at maximum gain for sensitive RF signal paths.

• Variable positive slope compensation for cable-loss correction.

• Hot-swappable, single-slot module for compatible GENUS 1U chassis.

• Chassis-based local and remote monitoring and control.

• Module operating rating: 0°C to +50°C with up to 8 modules, or 0°C to +45°C with up to 16 modules, subject to chassis limits.

This listing covers one amplifier module. The compatible GENUS chassis, RF cables, and other accessories are sold separately unless included in the quoted configuration. No LNB powering is provided. Indoor operation requires a compatible parent GENUS chassis. Confirm the complete ordering suffix and required operating configuration when requesting a quotation.