MFJ MFJ-415B Скачать руководство пользователя страница 8 | Manualshive

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MFJ MFJ-415B Скачать руководство пользователя страница 8

MFJ-415B CW Adapter

Instruction Manual

6

Schematic

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Содержание MFJ-415B

Страница 1: ...d Installation 2 Shorting Plugs 2 Adjustment and Calibration 2 Transceiver Recalibration of VFO 2 Module Calibration for CW Band 3 Module Adjustment for CW Offset 4 Module Adjustment for QSK Hold 4 In...

Страница 2: ......

Страница 3: ...to the transceiver s VFO circuit to shift frequency coverage into the CW portion of the band The specific components required to make the VFO shift are selected by the jumper plug on header J105 You...

Страница 4: ...no sidetone remove it For MFJ 9440 place a shorting plug on center and rear pins of J105 For MFJ 9420 place a shorting plug on center and front pins of J105 Adjustment and Calibration Your MFJ 415B C...

Страница 5: ...O dial are set to 14 000 MHz MFJ 9440 Signal source and VFO dial are set to 7 000 MHz If your MFJ radio lacks a CW band dial scale on its faceplate set the VFO dial to the low end of the phone band Th...

Страница 6: ...personal preference by adjusting trimpot R102 To approximate the factory default position set the arrow on the trimpot to the 2 in the R102 silkscreen marking on the pc board Important VFO setting Not...

Страница 7: ...e at least 40 dBc or 40 dB down from full CW output Technical Assistance If you have any problem with this unit first check the appropriate section of this manual If the manual does not reference your...

Страница 8: ...MFJ 415B CW Adapter Instruction Manual 6 Schematic...

Страница 9: ...5 Jack Stereo PCB 3 5 mm J104 612 0102 Header Pin Straight 375 1 2 Position J105 612 0103 Header Pin Straight 375 1 3 Position K101 408 1011 Relay Reed Type 12 V SPST L101 402 2710 Inductor Coilcraft...

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