Yaesu FT-450 Technical Supplement

Also see for FT-450: Brochure & specs Reference Manual Operation manual User manual

ALIGNMENT-6AlignmentSoftware 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.OPERATING BANDGeneral Band1.8 MHz Band3.5 MHz Band7 MHz Band14 MHz Band21 MHz Band28 MHz Band50 MHz BandFREQUENCY1.200 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)ALIGNMENT PARAMETERSMADJ0SMADJ1SMADJ2SMADJ3SMADJ4SMADJ5SMADJ6SMADJRF SIGNAL GENERATOR1.200 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 PARAMETER1PO1002PO1003PO1004PO1005PO1006PO1007PO100WATTMETER100 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.