Yaesu FT-270R, Technical Supplement

Page: 12 / 34

12
FT-270R/E Technical Supplement
Alignment
CTCSS TX Deviation
1. Rotate the DIAL knob to select the display to “B0206,”
then activate the CTCSS encoder with a “100 Hz” tone,
and set the transmit power level to “LOW.”
2. Press the [ F/W
] key, then press the [
MR/MW
(
SKIP
)]
key to set the alignment parameter to “
A5 CTC.xxx A5 CTC.xxx
A5 CTC.xxx A5 CTC.xxx
A5 CTC.xxx
.”
3. With in five second of appearing the “
A5 CTC.xxx A5 CTC.xxx A5 CTC.xxx A5 CTC.xxx A5 CTC.xxx
” on
the display, press the PTT switch to activate the trans-
mitter (with no microphone input), adjust the DIAL
knob so that the deviation meter reading is 0.7 kHz
(±0.05 kHz).
S-meter Sensitivity
1. Rotate the DIAL knob to select the display to “B0206.”
2. Inject a 146.050 MHz signal at a level of –5 dB μ V (with
1 kHz modulation @±3.5 kHz deviation) from the RF
signal generator.
3. Press the [ F/W
] key, then press the [
MR/MW
(
SKIP
)]
key to set the alignment parameter to “
A6 SM U A6 SM U A6 SM U A6 SM U A6 SM U
/
D D D D D
.”
4. With in five second of appearing the “
A6 SM U A6 SM U
A6 SM U A6 SM U
A6 SM U
/
D D
D D
D
” on
the display, press the [

(
MHz
)] key.
5. Increase the RF signal generator output level to +23
dB μ V.
6. Press the [ F/W
] key to recall the alignment parameter
to “
A6 SM U A6 SM U A6 SM U A6 SM U A6 SM U
/
D D D D D
.”
7. With in five second of appearing the “
A6 SM U A6 SM U
A6 SM U A6 SM U
A6 SM U
/
D D
D D
D
” on
the display, press the [

(
MHz
)] key.
Squelch Sensitivity
1. Rotate the DIAL knob to select the display to “B0206.”
2. Inject a 146.050 MHz signal at a level of –12 dB μ V (with
1 kHz modulation @±3.5 kHz deviation) from the RF
signal generator.
3. Press the [ F/W
] key, then press the [
MR/MW
(
SKIP
)]
key to set the alignment parameter to “
A7 SQL U A7 SQL U A7 SQL U A7 SQL U A7 SQL U
/
D D D D D
.”
4. With in five second of appearing the “
A7 SQL U A7 SQL U
A7 SQL U A7 SQL U
A7 SQL U
/
D D
D D
D
” on
the display, press the [

(
MHz
)] key.
5. Increase the RF signal generator output level to –3
dB μ V.
6. Press the [ F/W
] key to recall the alignment parameter
to “
A7 SQL U A7 SQL U A7 SQL U A7 SQL U A7 SQL U
/
D D D D D
.”
7. With in five second of appearing the “
A7 SQL U A7 SQL U
A7 SQL U A7 SQL U
A7 SQL U
/
D D
D D
D
” on
the display, press the [

(
MHz
)] key.
DC Voltmeter
1. Set the power supply voltage to 9.9 V.
2. Press the [
F/W
] key, then press the [
MR/MW
(
SKIP
)]
key to set the alignment parameter to “
A8 BAT RV A8 BAT RV
A8 BAT RV A8 BAT RV
A8 BAT RV
.”
3. With in five second of appearing the “
A8 BAT RV A8 BAT RV A8 BAT RV A8 BAT RV A8 BAT RV
” on
the display, press the [ REV
(
HOME
)] key.
To close the alignment mode
1. Turn the power off by rotating the [ VOL/PWR ] knob
fully counter clockwise.
2. The next time the transceiver is turned on, press and
hold in the [ VFO
(
PRI
)] key turning the radio on. Once
the radio is on, release the key.
normal operation may resume.