4 Channel
Digital Attenuator
The MT-84A is a fully shielded, digitally controlled 4-channel RF attenuator covering 200 – 8000 MHz. PoE/USB-powered with browser and API control — built for high-accuracy automated test environments.
Frequency Range
200 – 8000 MHz
Channels
4 ch
Dynamic Range
95 dB
Step Size
0.25 dB
Connector
SMA Female
Power
PoE/USB
Key Features
Built for precision
and automation
Every specification is engineered for repeatable, accurate RF control in demanding test environments — 4 channels, 95 dB range, 0.25 dB steps.
Broad Frequency Coverage
Precision attenuation from 200 MHz to 8 GHz — covering 5G FR1, Wi-Fi 6/6E/7, LTE, and all major cellular bands.
95 dB Dynamic Range
Wide 0–95 dB attenuation range with 0.25 dB resolution for accurate, repeatable signal power control in every scenario.
PoE/USB Powered
Power and control over a single Ethernet cable or USB — no external PSU, minimal cabling, plug-and-play in any lab rack.
Browser & API Control
Built-in web GUI plus REST and USB APIs allow manual control or seamless integration with any automation framework.
Complete RF Shielding
110 dB enclosure shielding and 90 dB channel isolation ensure interference-free measurements on all active paths.
4-Channel Architecture
4 fully independent RF paths with 2 µs switching for concurrent multi-device or multi-band test setups.
24/7 Automated Operation
Designed for continuous unattended use in engineering characterisation and high-volume production test lines.
Cross-Platform Software
Control GUI and APIs run natively on Windows, Linux, and Mac OS — no proprietary drivers or licence fees.
Target Applications
Automated RF test
environments
From R&D characterisation to high-volume production testing — wherever programmable, accurate RF attenuation is needed.
Wi-Fi & 5G Device Characterisation
Throughput vs. Range Mapping
Roaming & Handover Validation
Mesh & Band-Steering Tests
Receiver Sensitivity Testing
Device Verification Testbeds
Automated Manufacturing Test
MIMO & Multi-Antenna Testing
Specifications
Technical Data
Complete performance data for the MT-84A.
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Impedance | — | — | 50 | — | Ω |
| Channels | — | — | 4 | — | — |
| Attenuation Range | — | 0 | — | 95 | dB |
| Shielding | — | — | 110 | — | dB |
| Isolation between Channels | — | — | 90 | — | dB |
| Step Size | — | — | 0.25 | — | dB |
| Insertion Loss | < 2.5 GHz | — | 4.5 | 6 | dB |
| Insertion Loss | < 6 GHz | — | 6 | 7 | dB |
| Insertion Loss | < 8 GHz | — | 8 | 10 | dB |
| Attenuation Accuracy | — | — | ±0.25 | ±1.5 | dB |
| Switching Speed | — | — | 2 | — | µs |
| Maximum Input Level | Operating | — | +28 | — | dBm |
| Maximum Input Level | Absolute | — | +33 | — | dBm |
| Input IP3 | — | — | 58 | — | dBm |
| Operating Modes | — | — | Uni / Bi-Directional | — | — |
| Control | — | — | Application / REST APIs | — | — |
| Power | — | — | PoE/USB | — | — |
| Operating Temperature | — | −30 | — | +70 | °C |
Need a different channel count?
Available in 1, 2, 4, and 8-channel configurations across three frequency bands.
Contact engineering