ETL Systems Alto ALT-G1S-S6-110 S-Band Low Noise Variable Gain Amplifier 850–3150 MHz

ETL Systems Alto ALT-G1S-S6-110 S-Band Low Noise Variable Gain Amplifier 850–3150 MHz

The ETL Systems Alto ALT-G1S-S6-110 is an S-band smart low noise amplifier module operating from 850–3150 MHz. Designed for a compatible GENUS 1U chassis, it combines variable gain, positive slope compensation, and high linearity for satellite communications and RF distribution systems.

Gain is adjustable across a nominal 0–42 dB range in 0.25 dB steps. Slope control provides 0–10 dB compensation with a pivot point at 3150 MHz, supporting correction of frequency-dependent cable loss.

At maximum gain, the module provides a noise figure of 2.5 dB typ., an output P1dB of +23 dBm typ., and an OIP3 of +35 dBm typ. Specified gain flatness is ±2 dB across the full frequency range and ±0.2 dB over any 36 MHz in manual gain mode at zero slope.

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-S6-110; ordering suffix depends on configuration
Product Type: S-band low noise variable gain amplifier module
Frequency Range: 850–3150 MHz
Chassis Compatibility: GENUS 1U; one slot per module
RF Ports: 50Ω SMA
Gain Range: Nominal 0–42 dB; ±2 dB at minimum and maximum settings
Gain Step Size: 0.25 ±0.15 dB in manual gain mode
Slope Control: 0–10 dB; pivot at 3150 MHz; steps of 1 ±0.25 dB
Gain Flatness: ±2 dB full band; ±0.2 dB over any 36 MHz; manual gain mode at zero slope
Noise Figure: 2.5 dB typ.; 3 dB maximum, at maximum gain
Output P1dB: +23 dBm typ.; +20 dBm minimum, at maximum gain
OIP3 / OIP2: OIP3 +35 dBm typ., +32 dBm minimum at maximum gain; OIP2 +45 dBm typ., +41 dBm minimum
Input / Output Return Loss: Input 16 dB typ., 14 dB minimum; output 16 dB typ., 12 dB minimum
Isolation: 60 dB typ.; 50 dB minimum, with amplifier modules set to equal gain
Control / LNB Power: Local and remote through compatible chassis; no LNB powering
MTBF / Weight: Greater than 150,000 hours per module; less than 0.35 kg typ.

Key Features

• Wide RF coverage from 850–3150 MHz.

• Nominal 42 dB gain adjustment range with fine 0.25 dB steps.

• Up to 10 dB positive slope compensation for cable-loss correction.

• Low noise figure and high linearity at maximum gain.

• Hot-swappable, single-slot module with 50Ω SMA RF ports.

• Local and remote monitoring and control through the compatible GENUS chassis.

• 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. Published RF performance is for standalone amplifier operation; confirm performance in the selected chassis configuration when requesting a quotation. Indoor operation requires a compatible parent GENUS chassis. Specify the complete ordering suffix when requesting a quotation.