MFJ MFJ-815D Instruction Manual Download | Manualshive

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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.

C

VERSION 1A

D

Model MFJ-815D

1.8-60MHz

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Summary of Contents for MFJ-815D

Page 1: ... 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 C VERSION 1A D Model MFJ 815D 1 8 60MHz ...

Page 2: ...o 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 sleeve negative The negative lead is grounded inside the meter There is no need to disconnect the battery when using external power 3 An internal lamp backlights the meter scale The lamp circuit requires 12 VDC and will not illuminate with the...

Page 3: ...s the PEP reading is three to five times higher than the average voice power reading The most accurate PEP readings are obtained only with sustained carrier voice or two tone test modulation During normal voice modulation the wattmeter will typically indicate only 70 of the true Peak Envelope Power 4 Forward power is displayed on the left hand FORWARD meter scale This scale is calibrated from 0 to...

Page 4: ...f the MFJ 815D 3 Connect the Test Setup equipment as shown in Figure 1 Use a 50 ohm dummy load for the antenna Set the Transmitter to the 14 MHz in the 20 meter band 4 With the 3000 300 Watts button pushed out for the 300 Watt scale Transmit 100 Watts as indicated on the reference meter Adjust the LO FWD trim pot to set the forward power scale to 100 Watts 5 With the 3000 300 Watts button pushed i...

Page 5: ...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 9 SWR requires no calibration Figure 1 Test Setup Figure 2 PCB Layout and Trim Pot Location Transmitter Transceiver Standard Reference Wattmeter MFJ 815D SWR Wattmeter 50 Ohm Dummy Load HI FWD LO REF HI REF LO FWD ...

Page 6: ...d all information on your station handy so you can answer any questions the technicians may ask 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 Send a complete description of your problem an explanation of exactly how you are using your unit and a complete description...

Page 7: ...0 C101 001 U103 LM324 3 2 OUT 6 D101 IN34A 12V SW 102A C102 10 R106 IM U104 LM324 3 2 OUT 6 C103 01 R107 10k RM R119 25k 2 1 RG REFLECTED METER FWD REF Q103 MPS A13 Q102 2N3904 J101 Q104 2N3906 1 3 2 SW 101B SW 103A R116 1M R117 470 R118 33k C110 220 C111 47 R115 100k 9V BATTERY C109 100 C108 01 D103 IN4007 12V SW 103B LP METER LAMP LP R109 150k R108 500k 2 1 R110 N L 2 1 R111 68k R112 470 C104 00...

Page 8: ...rvice Department at 662 323 0549 or the MFJ Factory at 662 323 5869 4 This warranty does not apply to kits sold by or manufactured by MFJ Enterprises Inc 5 Wired and tested PC board products are covered by this warranty provided only the wired and tested PC board product is returned Wired and tested PC boards installed in the owner s cabinet or connected to switches jacks or cables etc sent to MFJ...

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