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Summary of Contents for MFJ ECONO KEYER II
- Page 1 MFJ-401D ECONO KEYER II MANUAL...
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Page 2: Control Functions
7. The Direct/Grid-Block Output keying circuit allows keying of grid-block and solid state transmit- ters. The MFJ-401D can only key one type of transmitter at a time. This is an internal jumper selected option. The unit is factory set to direct keying. To change to grid-block keying the power must be off, then remove the cover by removing the two screws (one on each side) that secure it. -
Page 3: Installation
9-volt battery. 2. A 12 VDC power supply may also be used to power the MFJ-401D. A 2.1 mm coaxial plug with a positive center and a negative sleeve should be used to power this unit. The MFJ-1312B, an optional 12 volts adapter, is available from MFJ Enterprises, Inc. -
Page 4: Jumper Settings
Keyer Operation 1. A 9-volt battery or an optional DC adapter may be used to supply power to the keyer. 2. The key paddle should be connected to the Key jack on the rear panel of the unit. A dual pad- dle squeeze key or a single lever key can be used. - Page 5 Morse Code Character Set A di-dah N dah-dit ·- -· B dah-di-di-dit O dah-dah-dah -··· C dah-di-dah-dit P di-dah-dah-dit -·-· ·--· D dah-di-dit Q dah-dah-di-dah -·· --·- E dit R di-dah-dit · ·-· F di-di-dah-dit S di-di-dit ··-· ··· G dah-dah-dit T dah --·...
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Page 6: Technical Assistance
MFJ Technical Service at 662-3230549 or the MFJ Factory at 662-323-5869. You will be best helped if you have your unit, manual and all information on your station handy so you can an- swer any questions the technicians may ask. - Page 7 SCHEMATIC...
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