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This control is turned clockwise to raise the pitch and counter- clockwise to lower the pitch. 7. The Key Output circuit supports both positive and negative keyed radios. The MFJ-422D 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 (most solid state radios).
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5. Remove the plastic cable clamp from the bottom center of the paddle. 6. Slide the MFJ-422DX on the back of the paddle. Thread the cable through the slot on the bot- tom of the MFJ-422DX. Secure the case with the rubber foot and new screws. The MFJ-564 Iambic Paddle has four additional holes to better secure the case of the paddle.
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2. A 12 VDC power supply may also be used to power the MFJ-422D. 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 power adapter, is available from MFJ Enterprises, Inc.
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MFJ-422D/422DX Instruction Manual Electronic Keyer Paddle 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 ··-·...
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MFJ-422D/422DX Instruction Manual Electronic Keyer Paddle Signals used in other Radio Services Interrogatory di-di-dah-di-dah ··-·- Emergency Silence di-di-di-di-dah-dah ····-- Executive Follows di-di-dah-di-di-dah ··-··- Break-in Signal dah-dah-dah-dah-dah TTTTT ----- Emergency Signal di-di-di-dah-dah-dah-di-di-dit ···---··· Relay of Distress dah-di-di-dah-di-di-dah-di-dit -··-··-·· Jumper Settings JMP1...
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