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FT-897 Alignment
Vertex Standard Co., Ltd.
6
RX Gain Adjustment
a.
Select the CW mode. Tune the transceiver to 1.8MHz band. Select "HF1RXG" in the menu by
rotating VFO/M-CH knob. Inject a RF signal from a signal generator at 2dBu output.
b.
Set the parameter "HF1RXG" at the value of lighting the first dot of the S-meter (S1) on the LCD by
rotating the main dial.
c.
Other RX gain adjustment should be performed as this routine. Output levels of the signal
generator at each frequency are shown as follows.
Frequency
Output Level of SG
1.8MHz Band
12 dBu
7MHz Band
12 dBu
21MHz Band
9 dBu
50MHz Band
0 dBu
144MHz Band
0 dBu
430MHz Band
0 dBu
SSB S-Meter Adjustment
a.
Tune the transceiver to 21MHz band on CW mode. Inject a RF signal from a signal gen erator at
36dBu output.
b.
Set the parameter "SSB-S9" at the value of lighting the 6 dots of the S-meter (S9) on the LCD by
rotating the main dial.
c.
Tune the transceiver to 21MHz band on CW mode. Inject a RF signal from the signal generator at
86dBu output.
d.
Set the parameter "SSB-FS" at the value of lighting all the dots of the S-meter on the LCD by
rotating the main dial.
FM S-Meter Adjustment
a.
Tune the transceiver to 144MHz band on FM mode. Inject a RF signal from a signal generator at
-3dBu output, 3.5KHz deviation FM Modulation of 1KHz AF.
b.
Select the menu item "FM-S9" and press [A] key to set the parameter.
c.
Increase the output level of the signal generator up to 22dBu. Select the menu item "FM-FS" and
press [A] key to set the parameter.
FM Center Meter Adjustment
a.
Tune the transceiver to 144MHz band on FM mode. Inject a RF signal from a signal generator at
10dBu output, 3.5KHz deviation FM Modulation of 1 KHz AF.
b.
Set the frequency of the signal generator 3KHz below the receiving frequency of the transceiver.
Select the menu item "DISC-L" and press [A] to set the parameter.
c.
Set the frequency of the signal generator 3KHz above the receiving frequency of the transceiver.
Select the menu item "DISC- H" and press [A] to set the parameter.
