AM-48 Test Set (18-0015) Introduction
0015-S01
1-
The telephone "butt set" enables the field engineer to dial up and
speak back-and-forth with a field engineer at the far end of the
system. The compact and light-weight AM-48 eliminates the need to
carry multiple, bulky test sets.
Functional Overview
AM-48 can send:
• any frequency from 200 Hz to 20 kHz @ -50 to +10 dBm
• continuous 3-tone slope (404, 1004, 2804 Hz)
• continuous, user-defined, sweep tones
• fixed 1004 Hz
• P/AR waveform
• momentary 2713 Hz for WECO 829 loopback
AM-48 can measure:
• level, -65 to +10.9 dBm (absolute or relative)
• frequency, 0 to 19,999 Hz
• idle channel noise
• noise with tone
• three-level impulse noise
• phase jitter
• gain jitter
• transients (dropouts, phase and gain hits, impulse noise)
• signal-to-noise (S/N) ratio
• peak-to-average ratio (P/AR)
Noise filters provided (each with optional 1010 Hz notch)::
• C-Message (Psophometric for AM-48E)
• 3 kHz
• 15 kHz
• Program (Sound-weighted for AM-48E)
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