11
9. Inject a 146.050 MHz signal at a level of –5 dB
μ
(with
1 kHz modulation @ ±3.5 kHz deviation) from the
RF Signal Generator.
10. Press the [
REV
] or [
D/MR
] key for maximum
def4lection of the DC voltmeter and maximum de-
flection of the SINAD meter.
11. Press and hold the [
LOW
] key for one second to save
the new setting, then press and hold the [
MHz
] key
for one second to exit to the normal operation.
12. Tune the transceiver to 160.050 MHz.
13. Set the transceiver to Alignment mode, then rotate the
DIAL
knob to set the Alignment parameter to
“
TUN160
.”
14. Inject a 160.050 MHz signal at a level of –5 dB
μ
(with
1 kHz modulation @ ±3.5 kHz deviation) from the
RF Signal Generator.
15. Press the [
REV
] or [
D/MR
] key for maximum deflec-
tion of the DC voltmeter voltmeter at the higher side
of the bandpass filter peaks.
16. Press and hold the [
LOW
] key for one second to save
the new setting, then press and hold the [
MHz
] key
for one second to exit to the normal operation.
17. Tune the transceiver to 173.050 MHz.
18. Set the transceiver to Alignment mode, then rotate the
DIAL
knob to set the Alignment parameter to
“
TUN173
.”
19. Inject a 173.050 MHz signal at a level of –5 dB
μ
(with
1 kHz modulation @ ±3.5 kHz deviation) from the
RF Signal Generator.
20. Press the [
REV
] or [
D/MR
] key for maximum deflec-
tion of the DC voltmeter at the higher side of the
bandpass filter peaks.
21. Press and hold the [
LOW
] key for one second to save
the new setting, then press and hold the [
MHz
] key
for one second to exit to the normal operation.
S-Meter Sensitivity (SMTL 10/SMTL 2)
1. Set the transceiver to Alignment mode, then rotate the
DIAL
knob to set the Alignment parameter to “
SMTL
10
.”
2. Inject a 146.050 MHz signal at a level of +25 dB
μ
(with 1 kHz modulation @ ±3.5 kHz deviation) from
the RF Signal Generator.
3. Press and hold the [
LOW
] key for one second to save
the new setting.
4. Rotate the
DIAL
knob one click to clockwise to set
the Alignment parameter to “
SMTL 2
.”
5. Reduce the RF Signal Generator output level to –5
dB
μ
.
6. Press and hold the [
LOW
] key for one second to save
the new setting.
7. Press and hold the [
MHz
] key for one second to exit
to the normal operation.
TX Power Output
(TXPW H/TXPW M/TXPW L2/TXPW L1)
1. Tune the transceiver to 146.000 MHz, and set the
Transmitter Power Level to “HIGH.”
2. Set the transceiver to Alignment mode, then rotate the
DIAL
knob to set the Alignment parameter to “
TXPW
H
.”
3. Press the
PTT
switch to activate the transmitter, and
press the [
REV
] or [
D/MR
] key for 65 Watts on the
wattmeter, and confirm that supply current remains
below 12.5 A.
4. Press and hold the [
LOW
] key for one second to save
the new setting, then rotate the
DIAL
knob one click
to clockwise to set the Alignment parameter to
“
TXPW M
.”
5. Press the
PTT
switch to activate the transmitter, and
press the [
REV
] or [
D/MR
] key for 25 Watts on the
wattmeter, and confirm that supply current remains
below 7.5 A.
6. Press and hold the [
LOW
] key for one second to save
the new setting, then rotate the
DIAL
knob one click
to clockwise to set the Alignment parameter to
“
TXPWL2
.”
7. Press the
PTT
switch to activate the transmitter, and
press the [
REV
] or [
D/MR
] key for 10 Watts on the
wattmeter, and confirm that supply current remains
below 5 A.
8. Press and hold the [
LOW
] key for one second to save
the new setting, then rotate the
DIAL
knob one click
to clockwise to set the Alignment parameter to
“
TXPWL1
.”
9. Press the
PTT
switch to activate the transmitter, and
press the [
REV
] or [
D/MR
] key for 5 Watts on the
wattmeter, and confirm that supply current remains
below 4 A.
10. Press and hold the [
LOW
] key for one second to save
the new setting, then press and hold the [
MHz
] key
for one second to exit to the normal operation.
Alignment
Содержание FT-2800M
Страница 4: ...4 Exploded View Miscellaneous Parts Note...
Страница 5: ...Block Diagram...
Страница 6: ...Block Diagram Note...
Страница 13: ...COM Unit RF Unit Circuit Diagram...
Страница 14: ...COM Unit RF Unit Circuit Diagram Note...
Страница 18: ...18 Note...
Страница 24: ...24 a b c d e f g 1 2 3 4 5 Side B 1SS312 D302 311 RF Unit Parts Layout Lot 1 15...
Страница 28: ...28 a b c d e f g 1 2 3 4 5 Side B 1SS312 D302 311 RF Unit Parts Layout Lot 57...
Страница 38: ...38 REF DESCRIPTION VALUE V W TOL MFR S DESIG VXSTD P N VERS LOT SIDE LAY ADR Note...
Страница 39: ...13...