Yaesu FT-450/D Technical Supplement

Also see for FT-450D: Operating manual Brochure & specs Operation manual Operation manual Manual

Contents

ALIGNMENT-6AlignmentFT-450 Series Technical SupplementSoftware AdjustmentPreparation Set the VFO frequency for each band as indicated: Set the following controls as indicated:[IPO] button: OFF[ATT] button: OFF[AGC] button: AUTO[SHIFT] knob: 12-o'clock position[AF GAIN] knob: 12-o'clock position[RF GAIN] knob: Fully clockwiseMODE: CWCONTOUR: OFFNOTCH: OFFDNR: OFFS-meter Adjustment Connect the RF Signal Generator to the "ANT"jack. Press and hold in the [ATT/IPO], [NB], and [AGC]buttons, while turning the radio on, to enter thealignment mode. Select the appropriate "Alignment Parameter"using the [DSP/SEL] knob per the chart below,then set the RF Signal Generator output to eachlevel, and adjust the [MAIN DIAL] knob for thecorresponding S-meter deflection.ALC Adjustment Connect the 50-Ohm Dummy Load and Wattme-ter to the "ANT" jack. Press and hold in the [ATT/IPO], [NB], and [AGC]buttons, while turning the radio on, to enter thealignment mode. Rotate the [DSP/SEL] knob to select the align-ment parameter "I-ALC1". Press the PTT switch, then rotate the [MAIN DIAL]knob for 140 W ± 10 W on the Wattmeter. Notethe alignment value which is displayed on thefrequency display area of the LCD. Release the PTT switch. Rotate the [DSP/SEL] knob to select the align-ment parameter "I-ALC2". Press the PTT switch, then rotate the [MAIN DIAL]for 110 W ± 5 W on the Wattmeter.Release the PTT switch. Rotate the [DSP/SEL] knob to select the align-ment parameter "I-ALC3". Rotate the [MAIN DIAL] knob to set an alignmentvalue to same value, which was noted in the pre-vious step ("I_ALC1"). Press and hold in the [F] button for 2 seconds tosave the new setting and exit from the alignmentmode.Power Adjustment (100 W) Connect the 50-Ohm Dummy Load and Wattme-ter to the "ANT" jack. Press and hold in the [ATT/IPO], [NB], and [AGC]buttons, while turning the radio on, to enter thealignment mode. Select the appropriate "Alignment Parameter"using the [DSP/SEL] knob per the chart below,and adjust the [MAIN DIAL] knob for the corre-sponding Wattmeter deflection while pressingthe PTT switch.O PERATING B ANDGeneral Band1.8 MHz Band3.5 MHz Band7 MHz Band14 MHz Band21 MHz Band28 MHz Band50 MHz BandF REQUENCY1.200 MHz1.900 MHz3.750 MHz7.150 MHz14.175 MHz21.255 MHz28.850 MHz52.000 MHz Press and hold in the [F] button for 2 seconds tosave the new settings and exit from the alignmentmode.S- METERS-1 (3 dots)S-1 (3 dots)S-1 (3 dots)S-1 (3 dots)S-1 (3 dots)S-1 (3 dots)S-1 (3 dots)S-1 (3 dots)A LIGNMENT P ARAMETERSMADJ0SMADJ1SMADJ2SMADJ3SMADJ4SMADJ5SMADJ6SMADJRF S IGNAL G ENERATOR1.200 MHz, 32 dBμ1.900 MHz, 12 dBμ3.750 MHz, 12 dBμ7.150 MHz, 12 dBμ14.175 MHz, 12 dBμ21.255 MHz, 12 dBμ28.850 MHz, 12 dBμ52.000 MHz, 12 dBμ ALIGNMENT P ARAMETER1PO1002PO1003PO1004PO1005PO1006PO1007PO100WATTMETER100 W ±2 W100 W ±2 W100 W ±2 W100 W ±2 W100 W ±2 W90 W ±2 W100 W ±2 W Press and hold in the [F] button for 2 seconds tosave the new settings and exit from the alignmentmode.