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- Page 1 Model MFJ-815D 1.8-60MHz INSTRUCTION MANUAL CAUTION: Read All Instructions Before Operating Equipment MFJ ENTERPRISES, INC. 300 Industrial Park Road Starkville, MS 39759 USA Tel: 662-323-5869 Fax: 662-323-6551 COPYRIGHT 2013 MFJ ENTERPRISES, INC. VERSION 1A...
- Page 2 2. The MFJ-815D has a TrueActive peak reading circuit that requires a DC power supply such as the MFJ-1312D in order to function. A 9 VDC may also be installed inside the meter with a battery clip that is included. The rear panel accepts a 2.1 mm coaxial plug with the center conductor positive (+) and the...
- Page 3 MFJ-815D Deluxe HF True Peak Reading SWR/Wattmeter Instruction Manual Operation 1. With the DC power supply or 9 VDC battery installed, push the ON/OFF button in to turn the unit ON. If 12 VDC is used, the lamp will also be turned ON.
- Page 4 MFJ-815D Deluxe HF True Peak Reading SWR/Wattmeter Instruction Manual Calibration The MFJ-815D has been calibrated at the factory. If it should ever need to be recalibrated, then follow this procedure: Equipment Needed 1. Transmitter capable of supplying enough power to obtain ½ to full-scale reading at 14 or 21 MHz.
- Page 5 MFJ-815D Deluxe HF True Peak Reading SWR/Wattmeter Instruction Manual Meter Calibration (cont.) 8. With the 3000/300 Watts button pushed in for the 600 Watt reflected scale, Transmit 100 Watts as indicated on the reference meter. Adjust the HI REF trim pot to set the reflected power scale to 100 Watts.
- Page 6 You can also send questions by mail to MFJ Enterprises, Inc., 300 Industrial Park Road, Starkville, MS 39759; by Facsimile (FAX) to 662-323-6551; or by email to techinfo@mfjenterprises.com.
- Page 7 MFJ-815D Deluxe HF True Peak Reading SWR/Wattmeter Instruction Manual Meter Board +12V SW 103A 9V BATTERY Q104 D103 2N3906 IN4007 J101 R116 R118 C109 C108 Q103 MPS-A13 R117 C111 METER LAMP C110 R115 100k SW 103B R109 R108 SW 101B...
- Page 8 ONTH ARRANTY MFJ Enterprises, Inc. warrants to the original owner of this product, if manufactured by MFJ Enterprises, Inc. and purchased from an authorized dealer or directly from MFJ Enterprises, Inc. to be free from defects in material and workmanship for a period of 12 months from date of purchase provided the following terms of this warranty are satisfied.
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