MT-81A
The MT-81A programmable digital attenuator is a completely shielded, high performance, digitally controlled, 1-channel RF attenuator system. It is intended for any automated RF testing where high accuracy signal power control is needed. The MT-81A offers very good attenuation accuracy, high dynamic range and speed. The high performance of the attenuator is obtained through a high precision attenuator design and calibration
Key Features
Frequency range: 200MMHz to 8000MHz
Dynamic Range: 95 dB
Step: 0.25 dB
Insertion loss: 6dB at 2.4 GHz, 7dB at 5 GHz, 8.5dB at 7 GHz
0.1 dB compression: 34 dBm
IP3: 58 dBm
PoE Powered and Ethernet or USB Interface
Programmable via Browser or APIs
Completely shielded and very good accuracy
Supports Windows, Linux and Mac OS
| Model Number | MT-81A |
| Supported Channel | 1 |
| Frequency (MHz) | 200-8000 |
| Attenuation Range (dB) | 0-95 |
| Step Size (dB) | 0.25 |
| RF Connector Type | SMA |
| Control Interface | USB & Ethernet |
| Accuracy | 0.5 |
| Custom APIs as per user requirements | Yes |
MT-81A Applications
- Wi-Fi up to 802.11be and cellular technologies (GSM, UMPS, LTE-FDD, LTE-TDD, 5G-FR1) testing
- Throughput vs Range measurements
- Wi-Fi or Cellular Roaming measurements
- Mesh, Band-steering
- Receiver Sensitivity Measurements
- System design or device verification testbeds
| Parameter | Min | Typ | Max | |
| Impedance (Ω) | 50 | |||
| Shielding (dB) | 90 | |||
| Isolation between Channels (dB) | 85 | |||
| Insertion Loss (dB) | < 2.5 GHz | 6 | 6.5 | |
| < 6 GHz | 7 | 8 | ||
| < 8 GHz | 9.5 | 11 | ||
| Attenuation Accuracy (dB) | 0.25 | 1.5 | ||
| Switching Speed (µs) | 2 | |||
| Maximum Input Level (dBm) | +28 (operating) +33 (absolute max) | |||
| Input IP3 (dBm) | 58 | |||
| Operating modes | Uni/Bi-Directional GUI control or APIs | |||
| Power | Power over ethernet(PoE) | |||
| Operating Temperature | -30 °C to +70 °C | |||
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