Ameritec AM-48E Communications Test Set
Manufacturer:
Model:
AM-48E
Date:
1992
Category:
Group:
Description:
Personal Transmission Test Set

Information

Definition and Purpose. In one (1) hand-held unit, the AM-48 provides the field engineer with two (2) instruments: 1. a transmission Test Set, and 2. a telephone "butt-set". The transmission Test Set tests the integrity and quality of 2-wire or 4-wire voice and data transmission lines by sending selected analog signals and measuring standard parameters of the received signals. 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) Other features: • High impedance bridge, 600 or 900 Ohm termination • Display prompts help in set-up and testing sequences • On-board memory can store & recall up to 10 user-defined test set-ups • Dials: pulse, DTMF, and MF • Talk/Listen capability • Printer Interface for hard copy of set-up and test results • Battery life: Alkaline, 6 to 7 hours; NiCad, 3 to 4 hours • NiCad batteries can be recharged without removing them from the unit Testing Configurations: (For details, see ¶6.6) There are three (3) basic AM-48 configurations used to test 2-wire/4-wire telephone/data communication lines: 1. End-to-end -- requiring two (2) AM-48 units 2. Loopback 3. Testing with responders

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User Manual
Manual type:
User Manual
Pages:
179
Size:
4.32 Mbytes (4526082 Bytes)
Language:
english
Revision:
F
Manual ID:
18-0015
Date:
19 April 2004
Quality:
Electronic document, no scan, very well readable.
Upload date:
14 October 2017
MD5:
101f8fe6ff9d5d2b93291d75e2be41af
Downloads:
1032

Information

This instruction manual describes Ameritec Corporation’s AM-48 and AM-48E Personal Transmission Test Sets. Note: Throughout this manual, all references to the "AM-48" also apply to the "AM-48E", unless otherwise noted. See ¶1.4 for a summary of the differences between the AM-48 and the AM-48E, The other paragraphs in this Introduction section are: 1.2 General Description 1.3 AM-48 Technical Specifications 1.4 AM-48E Technical Specifications The balance of the manual is divided into the following sections: 2. Receiving and Unpacking 3. Physical and Functional Description 4. Power Considerations 5. Self-Test Instructions 6. Connection and Configuration 7. Operating Instructions 8. Explanation and Application of Measurements 9. Circuit Diagrams 10. Warranty, Service, and Calibration 11. Glossary Index Glossary. Refer to the Glossary to become familiar with the terminology used in this manual. Power. Be sure to read Section 4 and observe the WARNING in ¶4.3 before powering up the AM-48, Self Test . Perform the Self Test in Section 5 to: 1. confirm that all AM-48 circuits and basic functions are working properly, and 2. obtain "hands-on" experience with the AM-48 to learn how the controls operate. Transmission Measurements . Note that Section 7, Operating Instructions, gives procedures to perform transmission measurements. For explanation and application of the measurements, see Section 8.

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Service Manual
Manual type:
Service Manual
Pages:
183
Size:
5.10 Mbytes (5350848 Bytes)
Language:
italian
Revision:
Manual ID:
Date:
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
22 October 2020
MD5:
ffff3a9bdc5c59a3ba3e32f7addd3838
Downloads:
98

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