Entering The Alignment Mode; Rf Front-End Tuning - Yaesu FT-60R Technical Supplement

Alignment
Test Setup
Set up the test equipment as shown below for transceiver
alignment, and apply 9.9 V DC power to the transceiver.
Refer to the drawings for Alignment Points.
RF Signal
Generator
In-Line
Wattmeter
50-ohm RF
Dummy Load
Deviation
Meter
Frequency
Counter
FT-60R A

Entering the Alignment Mode

Alignment of the FT-60R is performed using a front pan-
el software-based procedure. To perform alignment of the
transceiver, it must first be placed in the "Alignment
Mode," in which the adjustments will be made and then
stored into memory.
To enter the Alignment mode:
1. Press and hold in the MONI and LAMP switches turn-
ing the radio on. Once the radio is on, release these
two switches.
2. Press the keypad in the following sequence:
[ ( MHz )] [ 0 ( ) SET ]
[ 1 ( SQ TYP )]
3. Press the [ F/W ] key to cause "A0 REF.xxx" to appear on
the display for five seconds, this signifies that the trans-
ceiver is now in the "Alignment Mode."
TP1015
10
8-ohm AF
Dummy Load
SINAD Meter
AF Signal
Generator
AF Signal Input
AF Signal Output
Regulated
9.9 VDC P.S.
S
[ 7 ( P1 )] [ V/M ( PRI )]
MAIN U
PLL Reference Frequency
1. Tune the frequency to 435.050 MHz, then set the trans-
mit power level to "LOW."
2. Press the [ F/W ] key, then press the [ BAND ( BAND DN )]
key to set the alignment parameter to "A0 REF.xxx," if
needed.
3. With in five second of appearing the "A0 REF.xxx" on
the display, press the PTT switch to activate the trans-
mitter, adjust the DIAL knob so that the counter fre-
quency reading is 435.050 MHz (±100 Hz).

RF Front-end Tuning

1. Connect the DC voltmeter to TP1015 on the MAIN
unit, then inject a 439.050 MHz signal at a level of +10
dBµ (with 1 kHz modulation @±3.5 kHz deviation)
from the RF signal generator.
2. Tune the frequency to 439.050 MHz.
3. Press the [ F/W ] key, then press the [ BAND ( BAND DN )]
key to set the alignment parameter to "A1 TUN.xxx."
4. With in five second of appearing the "A1 TUN.xxx" on
the display, adjust the DIAL knob so that the DC volt-
meter reaches maximum deflection. The FT-60R's RF
Front-end has a broad bandwidth. Therefore, prior to
adjustment you must adjust the DIAL knob to set the
frequency to the middle of the band, in step 2, so you
can set peak in the DC voltmeter's deflection in the
center of the RF passband.
5. Tune the frequency to 145.050 MHz.
6. Inject a 145.050 MHz signal at a level of +10 dBµ (with
1 kHz modulation @±3.5 kHz deviation) from the RF
signal generator.
7. Press the [ F/W ] key to recall the alignment parameter
to "A1 TUN.xxx."
8. With in five second of appearing the "A1 TUN.xxx" on
the display, adjust the DIAL knob so that the DC volt-
meter reaches maximum deflection. As in the previ-
ous section, be sure to set the DIAL knob for the center
of the band prior to making this adjustment.
T P