Acom Owner's Manual page 7

User's Manual | ACOM 04AT | Remote Automatic Antenna Tuner and Switch
6.3. Overview of TUNING SETTINGS and Resources Used ................................................................... 50
6.4. Measurements in the Tuner - ATU MEASURE Menu .................................................................... 51
6.4.1. Voltage and Current at the Antenna Output ................................................................... 52
6.4.2. Reflected Power, Forward Power and SWR at Antenna Output ..................................... 52
6.4.3. Power Supply Voltage and Temperature in the Tuner Unit ............................................ 52
6.4.4. Tuner Working Hours....................................................................................................... 52
7. MAINTENANCE ........................................................................................................................................ 53
7.1. Cleaning ......................................................................................................................................... 53
7.2. Fuse Replacement ......................................................................................................................... 53
7.3. Block Diagram and Principle of Operation .................................................................................... 55
7.4. Troubleshooting - Monitoring the Antenna-feeder Path Status ................................................... 59
8. SPECIFICATIONS ....................................................................................................................................... 61
8.1. Parameters .................................................................................................................................... 61
8.1.1. Operating Frequency Range ............................................................................................ 61
8.1.2. Minimum Range of the Matched Impedances (at Each of the Four Antenna Outputs) . 61
8.1.3. Maximum Allowed Input Power ...................................................................................... 61
8.1.4. RF Input Characteristics ................................................................................................... 61
8.1.5. Antenna Outputs Characteristics, Antenna 1 to Antenna 4 ............................................ 62
8.1.6. Full Tuning Duration (Basic Cycle) ................................................................................... 62
8.1.7. Input Signal Needed to Prepare User Tuning Settings .................................................... 62
8.1.8. Power Supply ................................................................................................................... 62
8.1.9. Remote Control ............................................................................................................... 62
8.1.10. Maximum Length of the Input Coaxial Cable .................................................................. 62
8.1.11. Size & Weight (operating, excluding fastening elements and connected cables) .......... 62
8.1.12. Operating Environment ................................................................................................... 63
8.2. Functions ....................................................................................................................................... 63
8.2.1. Process of Matching of Antenna Impedance ................................................................... 63
8.2.2. Modes of Tuning .............................................................................................................. 63
8.2.3. Memory for the User Tune Settings ................................................................................ 63
8.2.4. Types of Antenna Selectivity / Bandwidth ....................................................................... 63
8.2.5. Bypass and Use ATU Modes ............................................................................................ 63
8.2.6. Overview of Tuning Settings ............................................................................................ 64
8.2.7. Evaluation of the Resource Used ..................................................................................... 64
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