The Bruker AQS BLA2BB Amplifier 200‑400 MHz operating and service manual provides safety instructions, operation steps, and full specifications.
This manual describes the AQS BLA2BB double‑broadband linear pulse amplifier designed for NMR applications. It includes general information, safety warnings, front‑ and rear‑panel descriptions, and detailed technical data such as frequency range, gain, and output power.
The document also covers the initial turn‑on procedure, programmable attenuation via I²C, thermal protection mechanisms, and provides tables of RF specifications, connector pin‑assignments, and router combinations for service personnel.
| Frequency range | Channel X: 14‑162 MHz, Channel H: 180‑400 MHz |
|---|---|
| Linear gain at input (-30 dBm) | Channel X: 57 dB @ 100 MHz, Channel H: 51 dB @ 300 MHz |
| CW output power | 5 W typical (both channels) |
| Programmable attenuation | 0‑10 dB |
| Blanking delay | < 1.5 µs typical |
| RF rise/fall time | < 100 ns |
| Input noise figure | 7 dB max. |
| Output noise power (unblanked) | < ‑110 dBm @ 1 Hz (Channel X), < ‑116 dBm @ 1 Hz (Channel H) |
| Isolation | > 90 dB (both channels) |
Channel X operates from 14 MHz to 162 MHz, while Channel H covers 180 MHz to 400 MHz.
It is powered by an external switched power‑supply assembly that provides 28 VDC to the power amplifiers.
A high‑voltage warning is displayed, indicating that the unit contains dangerous voltages.
The amplifier has four inputs; three of them can be mixed and switched to each amplifier channel.