ETL Systems Alto ALT-G1S-S3-102 S-Band Low Noise Variable Gain Amplifier 850–2450 MHz

ETL Systems Alto ALT-G1S-S3-102 S-Band Low Noise Variable Gain Amplifier 850–2450 MHz

The ETL Systems Alto ALT-G1S-S3-102 is a low noise variable gain amplifier module operating from 850–2450 MHz. Designed for a compatible GENUS 1U chassis, it provides adjustable amplification 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. Specified gain flatness is ±0.6 dB across the full frequency range and ±0.2 dB over any 36 MHz in manual gain mode at zero slope.

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. Its RF input and output use 50Ω SMA connectors.

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

Model: ALT-G1S-S3-102
Product Type: 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 in manual gain mode
Gain Flatness: ±0.6 dB full band; ±0.2 dB over any 36 MHz; manual gain mode at zero slope
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
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 850–2450 MHz.

• Nominal 49 dB gain adjustment range.

• Fine 0.25 dB gain steps for signal-level balancing.

• Low noise figure and high linearity at maximum gain.

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

• Chassis-based local touchscreen 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. 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.