Yaesu FT DX 1200 Operation Manual

Also see for FT DX 1200: Operating manual Operating manual Operating manual

Page 59FT DX 1200 O PERATING M ANUALTOOLS FOR C OMFORTABLE AND E FFECTIVE R ECEPTION[VFO-B/CLAR] Knob[S/T] Button[SELECT] Button[MENU] Button [CLEAR] ButtonDSP IF FILTER TYPESUsing 'S3 arithmetic processing and the normal bandwidth characteristics of the 'S3 IF ¿lter, the sound Tuality can bemade close to a conventional analog ¿lter by rounding the shoulder of the ¿lter, or importance can be placed on the ¿ltercut-off by making the skirt characteristics Àat. In addition, an improved ¿lter composition can be enjoyed depending onthe mode by combining the passing bandwidth characteristics and attenuation band characteristics.1. 3ress the [MENU] button to engage the 0enu mode.. 5otate the [VFO-B/CLAR] knob or press the ST button) to select the desired mode. See the tablesbelow for details.3. 3ress the [SELECT] button.4. 5otate the [VFO-B/CLAR] knob or press the STbutton) to adjust the sound Tuality. When the [CLEAR] button is pressed, the valuescan be returned to their initial values.. When the [SELECT] button is pressed followed bythe [MENU] button, the new setting will be con-¿rmed and operation returns to normal.Passing Bandwidth CharacteristicsMODE B AND MENU ITEMCW HF 112 HF CW SHAPE50MHz 114 6M CW SHAPEPSK HF 116 HF PSK SHAPEFSK HF 118 HF FSK SHAPESSB HF 120 HF SSB SHAPE50MHz 122 6M SSB SHAPEThe following settings are available.SHARP Set the passing bandwidth of the IF ¿lteras amplitude characteristic. Using 'S3arithmetic processing, a sharp and idealshape factor will result.SOFT Set the characteristic of the IF filter as aphase characteristic. Using 'S3 arithmeticprocessing, the shoulder of the filter willbecome rounded and the sound Tualitywill become close to that of a conventionalanalog ¿lter.Attenuation Band CharacteristicsMODE B AND MENU ITEMCW HF 113 HF CW SLOPE50MHz 115 6M CW SLOPEPSK HF 117 HF PSK SLOPEFSK HF 119 HF FSK SLOPESSB HF 121 HF SSB SLOPE50MHz 123 6M SSB SLOPE“STEEP”, “MEDIUM”, and “GENTLE” are selectablefor the IF ¿lter slope.SHARP SOFTSTEEPMEDIUMGENTLE