DEV 225x Redundant L-Band Combining Amplifiers, 800-2450 MHz

DEV 225x Redundant L-Band Combining Amplifiers, 800-2450 MHz 

The DEV 225x Series Redundant L-Band Combining Amplifiers provide high-availability 8:1, dual 8:1 or 16:1 active signal combining for satellite ground stations, teleports, broadcast facilities and mission-critical L-band networks. Available models include the DEV 2252, DEV 2253 and DEV 2255.

Each model combines redundant amplifiers and redundant power supplies in a compact 19-inch, 1 RU chassis. Operating across the extended 800-2450 MHz frequency range, the series also provides variable gain, variable slope, RF sensing and dedicated monitoring outputs.

Input and output ports can be configured independently for 50 Ohm, 75 Ohm or mixed-impedance operation using SMA, BNC or precision F female connectors. Ethernet connectivity enables remote control and monitoring through SNMP and the DEV Web Interface, with optional signal recording for performance analysis and external data storage.

Product Type: Redundant L-band combining amplifiers
Frequency Range: 800-2450 MHz
Available Configurations: 8:1, dual 8:1 and 16:1
Impedance: 50 Ohm, 75 Ohm or mixed impedance
Available Connectors: SMA female, BNC female or precision F female
Nominal Input Level: -10 dBm aggregated power
Damage Level: +10 dBm
Return Loss: Greater than 14 dB
Insertion Loss: 0 ±1.5 dB
Variable Slope: 0-5 dB
Full-Band Flatness: ±1.0 dB
36 MHz Flatness: ±0.25 dB
Input Port Isolation: Greater than 25 dB
Intermodulation Distortion: Less than -40 dBc
Group Delay Distortion: Less than 0.5 ns within any 36 MHz
Monitoring Outputs: 50 Ohm SMA female
RF Sensing Threshold: Adjustable from below 0 dBm to above -50 dBm
Remote Management: Ethernet, SNMP and DEV Web Interface
Input DC Blocking: Yes
Amplifier Redundancy: Included
Power Supply: Redundant 100-240 VAC inputs
Power Consumption: Less than 35 VA
Chassis: 19-inch, 1 RU
Dimensions: 483 mm W x 44 mm H x approximately 260 mm D
Weight: Approximately 2 kg
Environmental Conditions: ETS 300019 Part 1-3 Class 3.1E

Available Models

DEV 2252: 8:1 redundant L-band combining amplifier with eight inputs and one output

DEV 2253: Dual 8:1 redundant L-band combining amplifier with 16 inputs and two independent outputs

DEV 2255: 16:1 redundant L-band combining amplifier with 16 inputs and one output

Model-Specific Performance

DEV 2252

Gain Adjustment: -15 to +5 dB, ±0.5 dB
Noise Figure: Less than 25 dB
Monitoring Level: Combined output level minus 32 dB, ±3 dB

DEV 2253

Gain Adjustment: -15 to +5 dB, ±0.5 dB
Noise Figure: Less than 25 dB
Monitoring Level: Combined output level minus 32 dB, ±3 dB

DEV 2255

Gain Adjustment: -15 to +2 dB, ±0.5 dB
Noise Figure: Less than 29 dB
Monitoring Level: Combined output level minus 36 dB, ±3 dB

Connector and Impedance Options

vCin50: Eight 50 Ohm SMA female combiner inputs

vCin50B: Eight 50 Ohm BNC female combiner inputs

vCin75: Eight 75 Ohm precision F female combiner inputs

vCin75B: Eight 75 Ohm BNC female combiner inputs

vCout50: One 50 Ohm SMA female combiner output

vCout50B: One 50 Ohm BNC female combiner output

vCout75: One 75 Ohm precision F female combiner output

vCout75B: One 75 Ohm BNC female combiner output

Available Option

Option 77 - Signal Recording: Adds signal-data visualization and external storage through the DEV Web Interface

Key Features

• Redundant amplifier architecture

• Redundant AC power supplies

• 8:1, dual 8:1 and 16:1 configurations

• Extended 800-2450 MHz frequency coverage

• Adjustable amplifier gain

• Variable slope adjustment

• 50 Ohm, 75 Ohm and mixed-impedance configurations

• SMA, BNC and precision F connector options

• DC-blocked RF input ports

• High isolation between input ports

• Dedicated monitoring output for each combiner

• RF sensing with adjustable threshold

• Ethernet connectivity with SNMP support

• Remote control through the DEV Web Interface

• Optional signal recording and external data storage

• Compact 19-inch, 1 RU rack-mount chassis