PRESIDENT Mc KINLEY US 12/24 Manual de usuario
Mc KINLEY US
12/24
SERVICE MANUAL
-TECNNICAL CHARACTERITICS
Mc Kinley US 12/24
1-GENERAL:
-40 channels
(from 26,965Mhz to 27,405Mhz)
-7 Weather channels
CH1 162,550Mhz/CH2 162,400Mhz/CH3 162,475Mhz/CH4 162,425Mhz
CH5 162,450Mhz/CH6 162,500Mhz/CH7 162,525Mhz
-Channel step
-10Khz
-Class of emission
-AM(A3E)/USB LSB(J3E)
-Power supply
-13,8V/27,6V/ From10,8V to 31,2V
-Antenna impedance
-50
-Dimensions (in mm)
-172(W) x 150(D) x 52(H)
-Weight
-1Kg
2-TRANSMISSION:
-Frequency allowance
-±200Hz
-Carrier Power
-4W RMS AM / 12W PEP SSB
-Modulation
± 90%
-Transmission interference
-Inferior to -60dBc
-Audio frequency response
-From 300Hz to 3Khz
-Emitted power in the adjacent channel
-Inferior to 20µW
-Microphone sensitivity
-Inferior to 3mV
-Current drain
-2,2A (in transmission mode with modulation)
-Modulated signal distortion
-Inferior to 2%
3-RECEPTION:
-Maximum sensitivity at 20dB sinad
-0,7µV(-110dBm) AM / 0,28µV(-118dBm)USB LSB
-Audio frequency response
-From 300Hz to 3Khz
-Adjacent channel selectivity
-Superior to 60dB
-Frequency image rejection
-Superior to 60dB
-Intermodulation response
-Superior to 54dB
-Maximum audio power
-3W
-Squelch sensitivity
-Threshold 0,2µV(-120dBm) / Tight 1mV(-47dBm)
-Current drain
-300mA nominal / 1000mA maximu
ALIGNMENT PROCEDURE
(Mc KINLEY US 12/24)
* VCO/PLL PORTION
- Alignment procedure
- Test points
- Frequencies chart
* TRANSMITTER
- Alignment procedure
- Test points
* RECEIVER
- Alignment procedure
- Test points
Test equipement required
Frequency counter 200 Mhz HF Generator
D
CVolmeter B
FVolmeter
D
istortiometer H
FVolmeter
Wattmeter - Dummy load Osilloscope
FM linear detector Load 8 Ω
AF generator Sinad meter
Conditions of Measurements on HF Generator
Reception
AM mode: Level - 107 dBm Frequency 1 Khz with 60% of modulation.
USB/LSB mode: Level - 107 dBm
FM mode: Level - 107 dBm Frequency 1 Khz with 3Khz of deviation.
Transmission
Frequency1 Khz 30mV.
ALIGNMENT VCO/PLL
- Alignment procedure (13,8V/27,6V)
STEP CONDITION ADJUSTMENT REMARKS OF ADJUSTMENT
1 AM
RX mode
Channel 20
L308 Fine + coarse center position
Connect a frequency counter to TP304,
adjust L308 to reach 37,900MHz ± 20Hz
2 USB
RX mode
Channel 20
Fine + coarse center position
Connect a frequency counter to TP304,
And check 37,9025MHz ± 20Hz
3 LSB
RX mode
Channel 20
Fine + coarse center position
Connect a frequency counter to TP304,
And check 37,8975MHz ± 20Hz
4 USB
TX mode
Channel 20
RT302 Fine + coarse center position
Connect a frequency counter to TP304,
adjust RT302 to reach 37,9025MHz ±
20Hz
5 AM
RX mode
Channel 40
Fine + coarse center position
Connect a voltmeter to TP 303,
and check 2,8V±0,2V.
6 AM
RX mode
Channel 1
Fine + coarse center position
Connect a voltmeter to TP 303,
and check 2,6V±0,2V.
7 USB
RX mode
Channel 20
L307 Fine + coarse center position
Connect a frequency counter to TP305,
adjust L307 to reach 10,6975MHz ± 20Hz
8 LSB
RX mode
Channel 20
L305 Fine + coarse center position
Connect a frequency counter to TP305,
adjust L305 to reach 10,6925MHz ± 20Hz
9 AM
TX mode
Channel 20
L306 Fine + coarse center position
Connect a frequency counter to TP305,
adjust L306 to reach 10,695MHz ± 20Hz
10 AM
RX mode
Channel 20
RT301 Fine + coarse center position
Connect a frequency counter to TP600,
adjust RT301 to reach 10,100MHz ±
20Hz
- FREQUENCY LIST
CH Channels
Freq
(MHz)
VCO(TP304)
AM Freq
(MHz)
1 26,965 37,660
2 26,975 37,670
3 26,985 37,680
4 27,005 37,700
5 27,015 37,710
6 27,025 37,720
7 27,035 37,730
8 27,055 37,750
9 27,065 37,760
10 27,075 37,770
11 27,085 37,780
12 27,105 37,800
13 27,115 37,810
14 27,125 37,820
15 27,135 37,830
16 27,155 37,850
17 27,165 37,860
18 27,175 37,870
19 27,185 37,880
20 27,205 37,900
21 27,215 37,910
22 27,225 37,930
23 27,255 37,950
24 27,235 37,930
25 27,245 37,940
26 27,265 37,960
27 27,275 37,970
28 27,285 37,980
29 27,295 37,990
30 27,305 38,000
31 27,315 38,010
32 27,325 38,020
33 27,335 38,030
34 27,345 38,040
35 27,355 38,050
36 27,365 38,060
37 27,375 38,070
38 27,385 38,080
39 27,395 38,090
40 27,405 38,100
ALIGNMENT VCO/PLL
TP 303
TP 304
TR 302
TP 305
TP 600
Q417
RT 301
ALIGNMENT TRANSMITTER
- Alignment procedure (13,8V/27,6V)
-Connect a DC amperemeter between the power supply and the transceiver.
STEP CONDITION ADJUSTMENT REMARKS OF ADJUSTMENT
1 USB
Channel 20
TX mode
without
modulation
RT204 CCW
RT205 CCW
Check 0,65A±10mA on the amperemeter
2 USB
Channel 20
TX mode
without
modulation
RT205 Adjust RT205 to add
0,1A±10mA=0,75A±10mA
3 USB
Channel 20
TX mode
without
modulation
RT204 Adjust RT204 to add
0,1A±10mA=0,85A±10mA
4 USB
Channel 20
TX mode
with modulation
0,4KHz&2,5KHz
(adjust audio
frequency level to
become 0,5WPEP)
L213
L214
L215
Adjust L213, L214, L215 to reach the
maximum power on the RF power meter.
5 AM
Channel 20
TX mode
without
modulation
L207
RT202
1-Set RT 202 to center position
2-Adjust L207 to maximum reading on
the RF power meter
6 USB
Channel 20
TX mode
with modulation
0,4KHz&2,5KHz
(30mV RMS)
RT202 Adjust RT202 to reach
11Wpep ± 0,5W on the RF power
meter.
7 USB
Channel 20
TX mode
without modulation
RT207 Connect RF probe to TP 201.
Adjust RT 207 to minimum reading
on oscilloscope.
8 AM
Channel 20
TX mode
without modulation
RT203 Adjust RT203 to reach 3,8W ±
0,1W on the RF power meter.
9 AM
Channel 20
TX mode
1,25Khz 30mV
RT206 Adjust RT206
to 90% ± 3% modulation
10 AM
Channel 20
TX mode
without modulation
RT201 Adjust RT201
to reach SRF 9 displayed
on the SRF meter.
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