Yaesu FT-2DR - A-Band 430 MHz Band Adjustment; Receiver Sensitivity Adjustment (TUNE DEV); Squelch Hysteresis Confirmation (HIS SQL); Squelch Threshold Adjustment (THLD SQL)

FT2DR/DE Technical Supplement
Alignment
ALIGNMENT-3
A-Band 430 MHz Band Adjustment
Receiver Sensitivity Adjustment (TUNE DEV)

Connect the test equipment as shown in Figure 2:
RX Alignment Setup.

Rotate the
DIAL
knob to select the Alignment
Menu "TUNE DEV".

Set the RF Signal Generator output to 435.100
MHz, at a level of -10.0 dBμ, ±3.5 kHz deviation
with a 1 kHz audio tone.

Press the
[
V/M
]
button (the "Data" will appear
on the display).

Rotate the
DIAL
knob for maximum deection
on the SINAD meter.

Press the
[
V/M
]
button (the "Data" will disap-
pear on the display).
Figure 2: RX Alignment Setup
Squelch Hysteresis Conrmation (HIS SQL)

Rotate the
DIAL
knob to select the Alignment
Menu "HIS SQL".

Conrm that the alignment value is "0".
Squelch Threshold Adjustment (THLD SQL)

Connect the test equipment as shown in Figure 2:
RX Alignment Setup.

Rotate the
DIAL
knob to select the Alignment
Menu "THLD SQL".

Set the RF Signal Generator output to 435.100
MHz, at a level of -12 dBμ, ±3.5 kHz deviation
with a 1 kHz audio tone.

Press the
[
V/M
]
button (the "Data" will appear
on the display).

Press the
[
X
]
key two times to store the Squelch
Threshold level

Press the
[
V/M
]
button (the "Data" will disap-
pear on the display).
Tight Squelch Adjustment (TIGH SQL)

Connect the test equipment as shown in Figure 2:
RX Alignment Setup.

Rotate the
DIAL
knob to select the Alignment
Menu "TIGH SQL".

Set the RF Signal Generator output to 435.100
MHz, at a level of -4 dBμ, ±3.5 kHz deviation
with a 1 kHz audio tone.

Press the
[
V/M
]
button (the "Data" will appear
on the display).

Press the
[
X
]
key two times to store the Squelch
Tight level.

Press the
[
V/M
]
button (the "Data" will disap-
pear on the display).
FM S-Meter S-1 Adjustment (S1 LEVEL)

Connect the test equipment as shown in Figure 2:
RX Alignment Setup.

Rotate the
DIAL
knob to select the Alignment
Menu "S1 LEVEL".

Set the RF Signal Generator output to 435.100
MHz, at a level of -7 dBμ, ±3.5 kHz deviation
with a 1 kHz audio tone.

Press the
[
V/M
]
button (the "Data" will appear
on the display).

Press the
[
X
]
key two times to store the FM
S-Meter S-1 level.

Press the
[
V/M
]
button (the "Data" will disap-
pear on the display).
FM S-Meter Full-Scale Adjustment (S9 LEVEL)

Connect the test equipment as shown in Figure 2:
RX Alignment Setup.

Rotate the
DIAL
knob to select the Alignment
Menu "S9 LEVEL".

Set the RF Signal Generator output to 435.100
MHz, at a level of +20 dBμ, ±3.5 kHz deviation
with a 1 kHz audio tone.

Press the
[
V/M
]
button (the "Data" will appear
on the display).

Press the
[
X
]
key two times to store the FM
S-Meter Full Scale level.

Press the
[
V/M
]
button (the "Data" will disap-
pear on the display).
Regulated
9.4 VDC P.S.
SINAD
Meter
8-ohm
AF Load
RF Signal
Generator
AF Generator