Equipment information

Bird Electronic Corporation 4391 Other
Manufacturer:
Model:
4391
Date:
1985
Category:
Group:
Description:
Multi Purpose Thruline Wattmeter RF Power Analys

Information

The Model 4391 is a multi-purpose Radio Freouency wattmeter designed around a microcomputer. A fairly extensive program stored in permanent memory controls the operation of the instrument at all times, permitting the detection and correction of various error sources and the refinement of the raw data produced by the directional detectors. Thus, the instrument can compute VSWR, amplitude modulation, and various decibel variables reducing the odds of error and making such measurements consistent or repeatable regardless of who is making the measurement. Other benefits include extended range using standard elements in some modes of operation, continuous monitoring monitoring of maximum and minimum readings, a peaking aid, and error messages. Because of its complexity, the proper use of the 4391 is not always obvious. For this reason it is strongly advised that this manual be read in its entirety before using the device.

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Service and User Manual
Manual Type:
Service and User Manual
Pages:
36
Size:
5.48 Mbytes (5748496 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
2013 03 29
MD5:
c8e4eaaa973b2f7873d6c7e3eb3895f1
Downloads:
1107

Information

INTRODUCTION ... 1 SAFETY PRECAUTIONS ... 4 SECTION 1 INSTALLATION ... 5 1-1, General ... 5 1-3. Connections ... 5 SECTION 2 THEORY OF OPERATION ... 7 2-1. Description of Operation 7 SECTION 3 OPERATING INSTRUCTIONS ... 11 3-1. Operating Modes ... 11 SECTION 4 MAINTENANCE INSTRUCTIONS ... .20 4-1. General ... 20 4-3. Line Section Problems ... 20 4-9. Battery Problems ... 21 4-12. Power Supply Problems ... 21 4-14. Keyboard Problems ... 21 4-17. Display Problems ... 21 4-23. Other Disorders ... ... ... .22 4-25. Disassembly ... .22 4-31. Calibration ... 23 SECTION 5 PARTS LIST ... 24 5-1. General ... 24

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