Yaesu FT DX 1200 Operation Manual

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Page 82 FT DX 1200 O PERATING M ANUALCW C ONVENIENCE FEATURESU SING CW REVERSEIf you experience a dif¿cult interference situation, where an interfering station cannot readily be eliminated, you maywish to try receiving using the opposite sideband. This may move the interfering station’s freTuency in a direction thatmay lend itself more readily to rejection.1. To start, let’s use a typical example where you haveset the CW mode using the default “USB” injec-tion).. 1ow be sure your mode selection is still set for VF2-$, and then press and hold in the [MODE] button forone second. The “LSB” and “CW” will appear in thedisplay, indicating that the “LSB” injection side hasnow been selected.3. To return to the normal USB) injection side andcancel CW 5everse operation, press and hold in the[MODE] button for one second. the “USB” and“CW” will appear in the display).N OTES: When CW 5everse is engaged, the action of the Tun-ing 2ffset Indicator will also be reversed When the incoming signal pitch tone is properlyaligned, the central red marker lights up whether ornot CW 5everse is engaged.In the illustration, Figure “A” demonstrates thenormal CW injection setup, using the USB side.In Figure “B”, CW 5everse has been engaged toreceive using LSB-side injection and eliminateinterference.The bene¿cial effect of switching sidebands canbe clearly seen in this example.[MODE] ButtonABNormal CW(USB) CarrierCarrierQRMQRMSignalRX PassbandRX PassbandSignalCW Reverse(LSB)Retune: Shift to Lower FrequencyRetune: Shift to Higher FrequencyZero-In