Additional Features:
- Digital LED display of level and frequency of received signals or the calibrated test signal
- Automatic resolution, time constants, and sample rate for tone and noise level measurements and frequency measurements
- Dial and hold facilities
- Choice of four weighting filters: C message, 3 kHz flat, 15 kHz flat, Program
- AC power operation or rechargeable battery pack
- Receiver: Frequency range: 40 Hz to 60 kHz
- Frequency resolution: 1 Hz, 10 H
- Dynamic range: 15 dBm to -70 dBm
- Level resolution: 0.1 dB
- Message circuit noise: 0 dBm to +85 dBm
- Noise-with-tone: 10 dBm to +85 dBm
- Noise-to-ground: +40 dBm to +125 dBm
- Transmitter: Frequency range: 40 Hz to 60 kHz
- Frequency resolution: 1 Hz, 10 Hz
- Level range: +10 dBm to -60 dBm
- Level resolution: 0.1 dB
- Balanced impedances of 135, 600, and 900 ohms.
- Measures 2-wire and 4-wire balanced circuits
The Agilent HP 3551A is ideally suited for measurements on voice, program, and data circuits up to 50 kbps. Designed for use with North American Bell standards and is capable of measuring attenuation distortion, loss, message circuit noise, noise-with-tone, noise-to- ground, and single frequency interference.
| Manufacturer | Agilent, HP, Keysight |
|---|---|
| Condition | Used |
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