Download The Ameritron ALS-1300 is a solid state FET no

Ameritron ALS-1300
1200-watt NO TUNE
TMOS-FET AMPLIFIER
The Ameritron ALS-1300 is 160 through 15-meter amateur radio band 1200-watt output solid-state amplifier. It
uses eight 50-volt conservatively rated linear RF MOSFETS. 50-volt linear FET’s designed for transmitting
service produce an exceptionally clean signal compared to other solid-state amplifiers. Fan speed is regulated by
temperature sensors; assuring conservative cooling with minimum noise.
Nominal driving power is 90 watts for 1200-watts output (approximately 11 dB gain) on most bands. The
compact 10” wide by 6-1/2” high amplifier package (depth only 18”) fits nearly any station configuration. The
attractive desk-top amplifier unit weighs only 22 pounds.
An external 50-volt 50-ampere regulated power supply powers the ALS-1300. The supply is wired for 230
VAC (200-260 VAC, 50-60 Hz, 15 amperes), but can be rewired for 120 VAC operation for lighter duty
operation.
1
Table of Contents
TABLE OF CONTENTS .......................................................................................................................2
AMPLIFIER FEATURES ......................................................................................................................3
POWER SUPPLY .................................................................................................................................4
Power Line Requirements ..................................................................................................................................................................... 4
Power Supply Features.......................................................................................................................................................................... 4
Power Supply Location .........................................................................................................................................................................4
GENERAL INFORMATION ..................................................................................................................5
Amplifier............................................................................................................................................................................................... 5
Power Supply ........................................................................................................................................................................................ 5
INSTALLATION.................................................................................................................................... 5
Airflow .................................................................................................................................................................................................. 6
INTERCONNECTION WIRING.............................................................................................................7
AMPLIFIER REAR PANEL ..................................................................................................................8
FRONT PANEL .................................................................................................................................... 9
OPERATION.......................................................................................................................................10
MARS OR CAP OPERATION ............................................................................................................10
INITIAL OPERATION ......................................................................................................................... 11
CIRCUIT BOARDS.............................................................................................................................12
CB-1.................................................................................................................................................................................................... 12
2
Amplifier Features
This amplifier provides the following standard features:

Eight conservatively rated, very linear, 50-volt MOSFET transistors

Operational in a few seconds, no long filament warm-up time

Clean layout with easy-to-service modular construction

Front panel indicators including wrong band and other fault errors

Quiet variable-speed forced air cooling system

Power module balance metering

Power module current and voltage metering with LED illumination

PEP forward output power and PEP reflected output power metering

Reflected power protection

Bandswitch error protection

Standard negative going ALC output with front panel adjustment control

ALC metering and an ALC LED indicator

Fully regulated external power supply

Compact size 17.5” deep x 7” high x 10.5” wide

Weight amplifier section 23 pounds
3
Power Supply
The power supply for the ALS-1300 is a voltage regulated current limited supply. It contains 14-volt positive
and negative supplies as well as dual 50-volt 25-ampere continuous (30-ampere peak) fully current limited
supplies. Each PA (power amplifier) module in the ALS-1300 operates from the separate 50-volt sources,
giving a total dc input power rating of 2500 watts to the power amplifier modules.
Power supply to amplifier interconnections are through a heavy-duty cable using a large Cinch Jones connector.
Power Line Requirements
This amplifier ships wired for 200-260 Vac. The maximum average power line current is 12 amperes at 240
volts. Two 250-volt 15-ampere fuses fuse the power line.
Note: 120-volt power mains operation is possible with a reduction in CW or RTTY power. Because average
power is very low, SSB operation is unaffected by 120 volt operation. Fuse size would be 25 amperes
maximum.
Power Supply Features

Efficient operation from 200-260 volts ac (12 amperes minimum) and 100-135 volts (20 amperes
minimum)

Wide range of power line frequencies, 40-400 Hz

Fully regulated current-limited outputs

Step-start to limit stress on power supply components

Exceptional filtering and RFI suppression

Compact light-weight design
Power Supply Location
Locate the power supply in a convenient ventilated area near the amplifier location. Do not place the power
supply next to sensitive equipment like audio processors, transceivers, or microphones. For safety ground the
wing nut stud on the supply rear to the station ground buss. The station ground buss should comply with
national electrical codes. These codes dictate that station grounds must be bonded to the power mains entrance
ground. A station ground that is not bonded to the mains ground does not offer lightning protection!
4
General Information
Amplifier
The Ameritron ALS-1300 is a solid-state 1200-watt nominal RF output power 1.8-22 MHz amplifier. This
power is peak envelope power, which is the same as actual carrier power on CW. It uses eight exceptionally
very low distortion push-pull parallel MRF-150 or equivalent RF power TMOS transistors. The ALS-1300
meets or exceeds all FCC rules governing amateur radio external power amplifiers.
Two temperature sensors on each PA (power amplifier) module, with bias tracking FET temperature and fan
speed tracking heatsink temperature, control bias and fan speed.
Harmonic suppression comes from push-pull operation of linear devices, and a series of high quality 5-pole
low-pass filters. This amplifier exceeds all FCC mandated harmonic restrictions.
Antenna switching is through a sequenced pair of miniature relays on a plug in board. Relay switching time is
approximately five milliseconds. This amplifier’s “relay” jack sources 12 volts when open circuit, and the relay
jack current upon closure is less than 20 mA.
This amplifier includes two dual-movement cross-needle meters. This is the equivalent of having four panel
meters. The left hand meter is a dual power amplifier current meter. The right hand meter continuously displays
forward RF peak envelope power on one dedicated scale, while the second movement in the right hand meter
switches between reflected power, combiner mismatch voltage, ALC, and each power amplifier’s voltages.
While this amplifier will run more than 1200 watts PEP output, linearity will suffer. Ameritron recommends
running 1200 watts peak power for maximum linearity, at which point this amplifier will have comparable IM
performance to the best vacuum tube linear amplifiers. The characteristics of linear high-voltage FET’s are very
much like those of triode vacuum tubes.
Power Supply
The ALS-1300 has an external power supply. This power supply normally operates from 200-260 volts at 50400 Hz. It connects to the amplifier through a single cable. The power supply should be located in a cool spot
away from sensitive audio systems or cables.
Installation
Please look your amplifier and power supply over carefully. Observe the air inlet and outlet ventilation holes.
Locate the air inlet and outlet areas of the amplifier. Facing the amplifier front panel, the cooling air inlet is on
the right side. The warm air outlet is on the left side of the amplifier as viewed from the normal operating
position (front view). While the outlet air won’t be particularly warm, it is never a good idea to have it blow
into heat sensitive equipment such as transceivers or other power amplifiers. Have the same consideration for
your new amplifier and power supply. Be sure the air inlet temperature isn’t substantially above normal room
temperature. Ideally the air inlet should be kept below 32° C or 90° F, although temperatures up to 41° C or
106° F are permissible. If ambient temperatures exceed these limits it might become necessary to reduce duty
cycle or power.
Warning: Do not block cooling air inlets and outlets!
Never expose the amplifier to water or mist.
5
Airflow
The amplifier must have a clear area to the sides and top for proper airflow, and to the rear for interconnection
wiring. It is especially important to avoid obstructions that block the air inlet on the top left and both lower
sides. Two inches clearance is normally adequate for full ventilation. Keep any papers or loose objects that
might impede airflow away from the air inlets and outlets.
Locate the amplifier and power supply away from sensitive equipment such as microphones, audio processing
equipment, or low level audio or radio frequency amplifiers. Generally the best location for the power supply is
below the operating desk and away from antenna feedlines. This will keep fan noise and any RF coupling to a
minimum.
The power supply is factory wired for 200-260 Vac. It uses a standard NEMA-6-15P 15-ampere 240-volt plug.
The round center pin is the safety ground. Do not remove the safety ground.
CAUTION! Before connecting the power supply to an electrical outlet, always be sure you have completed the
following four steps:
1. Insert the 15-ampere 250V fuses into the two black fuse caps.
2. Insert the fuse and cap assemblies into the power supply’s fuse holders. The fuses lock in place
with a slight turn.
3. Connect the power supply to the amplifier.
4. Be sure the amplifier power switch is turned off.
Caution! Fuses have both voltage and current ratings. Use only 250V rated
fuses in this device. The voltage rating generally is marked on fuses. DO NOT
use automotive-type low voltage fuses in any power line application. For 240volt operation 15-ampere fast blow fuses are required.
Warning: Never insert the power supply cord into the outlet unless the above
four steps have been completed!!
Position the amplifier at the desired location on your operating desk, position it so you have access to the rear
panel, and connect the rear panel cables. Do not connect the power mains at this time!
6
Interconnection Wiring
POWER SUPPLY
FUSE
ANTENNA,
ANTENNA
TUNERS,
SWITCHES,
FILTERS
FUSE
ALS - 1300
OUT IN
REMOTE
A
B
RLY
ALC
TRANSMITTER / TRANSCEIVER
ALC
RLY
ANT
Figure 1 Interconnections
INTERCONNECTIONS
7
Amplifier Rear Panel
PWR SUPPLY To prevent connecting the power plug wrong, the large black multi-pin connector is
indexed by the offset in two round pins. One round index hole is closer to the outer connector edge. Mate
the round pins and holes and seat the male plug fully onto the amplifier rear panel pins.
ALC
Optional connection. Connects to radio ALC input. Mandatory if using a radio over 100 watts.
RLY
Connect to radio amplifier keying line. Radio must pull this line below 2 volts to transmit.
GND
Connect to station ground buss. This connection is for safety.
IN
Connect through good 50-ohm coaxial cable to radio’s antenna output connector. This can be a smaller
cable like RG-58/U.
OUT
To 50-ohm antenna, antenna tuner, power meter. This is the high power output. 50-ohm coaxial cable must
safely handle 1200-watts.
1.) Connect the station electrical safety ground to the rear panel wing nuts. National safety codes require the
station ground be bonded to the power mains safety ground at the building entrance.
2.) Connect the power supply to the amplifier.
3.) Connect the RLY line to the transceiver’s accessory RELAY or XMT port. This port must pull low for
transmit, and be open circuit when receiving. Relay control voltage from the ALS-1300 is 12 volts
positive with only 15 mA current. You should always check your transceiver’s manual, but almost any
standard transceiver directly interfaces to this amplifier.
4.) Connect the OUT (output) port to the appropriate point in your station. This is the high power RF output
cable. This connection would go to your 1500-watt rated Power/SWR meter, antenna, or antenna
matching device. Good quality Mini-8 or RG-8X cables are acceptable for anything but RTTY use,
although larger RG-8 style cables are normally preferred. Your antenna matching system must connect
to this port.
5.) Connect the IN connector to your transceiver. Do not install any active antenna matching devices on this
port. In general the shortest and most direct cable connection is best, although high quality cables can be
very long without adverse effect on performance. RG-58/U or Mini-8 (RG-8X) style cables are
acceptable. You should never use a tuner of any type on the amplifier input, nor should you drive this
amplifier with over 100 watts peak envelope power. Never use a non-FCC accepted device with this
amplifier.
6.) The ALC line is optional. In general the internal ALC in the transceiver is all that is needed. The ALC
monitors the RF output power and reflected power supplied by the ALS-1300 to the load.
7.) Operate the bandswitch manually during initial testing. Do not connect band decoders or computer
interfaces until initial tests are completed.
8
Front Panel
Figure 2 Amplifier Front
9
Operation
This amplifier is very simple to operate. Once you have established proper connections please set the amplifier
(Fig. 2, ref 3) to one of the following bands:
Band
160
80
40
30
20
17
15
12
10
Frequency Range
1.8 - 2.1 MHz
3.2 - 4.2 MHz
6.0 - 7.5 MHz
7.5 - 14.0 MHz
13.5 – 14.5 MHz
14.5 – 19.0 MHz
19.0 – 22.0 MHz
22.0 – 25.0 MHz
28.0 – 30.0 MHz
Notes
Operation locked out in domestic model. Export Only.
Operation locked out in domestic model. Export Only.
Operation locked out in domestic model. Export Only.
Caution: This amplifier is not suitable for 27 MHz. Damage to expensive components such as power amplifier
transistors will occur if attempts are made to use this amplifier in the 25-28 MHz frequency range.
MARS or CAP Operation
For licensed amateur radio operators participating in Military Affiliate Radio Systems, this amplifier is suitable
for MARS and CAP operation on all frequencies between 1.8 and 22 MHz with some precautions. The upper
frequency limits are in bold type in the table above. Do not operate above the bold-type frequency limits in the
table above or PA (power amplifier) damage may occur. It is permissible to operate below those limits if you
provide additional external harmonic suppression for authorized services such as MARS and CAP.
When operated outside the frequency limits above, harmonic suppression might not meet acceptable limits. You
may have to use additional external 2nd harmonic filtering. Ameritron guarantees to exceed FCC part 97.307
harmonic suppression standards only inside the frequency ranges listed above. Contact Ameritron with your
specific requirements. Ameritron requires proof of a valid MARS or CAP license as well as your own amateur
radio license for technical assistance.
10
Initial Operation
Double check all wiring and connections (fig. 1) before turning power on. It always pays to be safe. If you are
sure you have connected your amplifier correctly, follow the procedures below. The following steps only need
to be done on an initial checkout:
1. Place the MULTIMETER switch (fig.2 ref 7) in the HV2 position. Place the ALC SET control (fig2.
ref 5) full clockwise (10 on scale).
2. With the STANDBY/OPERATE switch (fig.2 ref 8) on STANDBY, turn the power switch (ref 9) ON.
3. There will be a slightly delayed click from the power supply. HV2 (fig.2, ref 2) should immediately rise
to nearly full scale, and after a slight delay you should hear another click. The meters and BAND LEDS
(fig.2, ref 4) will light up.
4. The HV meter (fig.2, ref 2) should read between 45 and 55 volts.
5. Change the meter switch (fig.2 ref 7) to HV1. The voltage should be the same as in step 4.
6. Rotate the BAND switch (fig.2 ref 3) through all positions. For any model purchased in the USA, only
the 160, 80, 40, 20, 17, and 15-meter bands will actually operate.
7. Change the meter switch (ref 7) to REF. This will read reflected power.
8. With no modulation in the FM, AM, RTTY, or CW mode adjust your exciter power to low power,
around ten watts. This is to have a steady unmodulated carrier. Verify you have very low power, ideally
around 10 watts carrier (not critical), and that VSWR of the antenna system is low. You should see
almost no deflection on the reflected power scale (fig.1 ref 2). If you see reflected power deflection,
check your RF cables. Note: You cannot use a tuner in your radio or between your radio and this
amplifier to match the antenna system. Any antenna matching must be between the amplifier and
the antenna, and the antenna tuner must be safely able to handle at least 1200 watts of carrier or
peak envelope power.
9. Place the amplifier in OPERATE position (fig.2 ref 8). Be sure the BAND on the amplifier matches the
band selected on the transceiver.
10. Place the transmitter or transceiver into transmit in FM, AM, RTTY, or CW modes. The green TX LED
(fig.2 ref 6) should light. The forward power (fig.2 ref 2) should increase to approximately ten times the
initial reading, the reflected power should remain low, and the PA current should increase slightly on
both scales of the current meter (fig.2 ref 1). No other lights should illuminate.
11. Briefly increase power to 1200 watts output.
12. After you have verified all of this, the amplifier is ready to operate.
11
Circuit Boards
There are 10 basic circuit boards plus two power amplifier modules in the ALS-1300. The text below gives a
brief description of each board’s function.
2KWF
The 2KWF is a high power low pass filter. It is the very large board with large toroid and a few air wound
inductors. This board contains filter SWR fault detection, power amplifier unbalance detection, and multiple
high power low pass 5-pole filters. Additionally two smaller boards, the antenna relay board RLY and the PA
combiner board CMB, attach directly to the low pass filter board.
BS1
The BS1 is located behind the BAND switch. It provides all band selection functions as well as band indicators.
CB1
The CB1 is located near the front of the amplifier just behind the meters. The CB1 control board provides most
control functions. This includes bias, fan speed, overload protection, and transmit-receive relay sequencing. It is
the hub for nearly all functions, including interfaces.
CMB
This board combines the outputs of two 600-watt PA modules. It is a traditional 50-ohm “magic T” combiner
with an output-matching transformer.
FL10
The FL10 is optional and only appears in export models. It enables ten meter and twelve-meter operation.
MB-1
The MB-1 is located behind the front panel below the meters. It contains peak-envelope-power detection
circuits, multi-meter switching, fault indicators, and ALC circuits. There are four power meter adjustments on
this board, two for calibration of forward and reflected power and two for forward and reflected peak hold time.
Shunts on a header located on the board’s upper edge adjust panel meter brightness.
PA Boards
PA boards are located on top of the heatsinks under the filter board shield panel. There are no user adjustments
on these boards.
PD8
The PD8 is located on the right side of the amplifier just above the panel containing the cooling fans. It contains
a power splitter and two 5 dB attenuator pads. The splitter and attenuator pads isolate the two power amplifiers
from each other, and terminate the PA inputs in 50 ohms over a wide range of frequencies. This is necessary to
stabilize the PA modules. Do not remove or bypass the attenuators.
12
RJ45
The RJ45 board mounts on the rear panel. It contains two RJ-45 jacks for remote control interface.
RLY
The RLY board contains two transmit and receive relays, one for RF output switching and the other for RF
input switching. T/R relays activate with a low on terminals K (key) J1-3 and RJ1-7. The CB1 board contains
the relay timing controls.
SWR
The SWR board is on the rear panel in front of the RF output connector. It is a traditional 50-ohm directional
coupler. The null adjustment is accessible through a rear panel hole.
Schematics
Filter 2KWF
2KWF-1R1
081210
PA Comb Out
PA A
PA B
Gimmik
T2
T1
C99
RLY1
C1
1500
D1
1N916
C28
270
R4
10k
C98
10pf
D2
1N916
RLY5
R3
1k
J2
L7
8T
C13
270
RLY9
J4
C10
360
C6
680
C11
C15
C14
270
C19
180
L6
12T
360
270
C17
FL 10
Rly
L9
6.5T
C7
680
180
RLY11
Ant
L5
12T
360
C29
.01
L3
11T
C2
C3
1500 1500L4
11T
C9
50
RLY7
R1
1k
L2
16T
C5
680
R2
C21
.001uf
RLY3
L1
16T
L8
8T
L10
6.5T
C18
180
12VDC
RLY2
C4
RLY11
1500
RLY2
RLY4
C8
680
RLY6
C12
360
RLY3
RLY4
C23
.1
RLY6
C24
.1
RLY8
C25
.1
RLY10
C26
.1
RLY12
C27
.1
RLY5
RLY8
C16
270
RLY7
RLY10
C20
180
RLY9
RLY12
FL10
FL 10
RLY11
C22
.1
J3
J1
Gnd
160
80
40
20
15
10
Gnd
PA Out Rly
PA IN
RADIO
rev 03 Mar 2009
Figure 3
13
Bandswitch BS1
BS - 1
LED1
160
LED2
80
D1
1N4001
D2
1N4001
D3
1N4001
J1
G
160
80
40
20
15
10
12V
D4
1N4001
J2
D5
1N4001
+12V
Remote
J3
G
160
80
40
20
15
10
12V
D6
1N4001
R1
1k
80
2
40
30
/
3
4
20
1
LED3
40
160
+12V
LED4
30
LED5
20
5
17
SW 1
rear
view
9
6
7
15
12
8
10
LED6
17
LED7
15
LED8
12
LED9
10
+12V
7 July 2008
Figure 4
14
Control Board CB1
CB1 rev2.1 090227
R1
1k
ZD1
R59
10k
5.1v
J1
G
+
K
F
R
REAR
PANEL
A
F1
1A
TO MB
J1
FILTER
U4pin8 U4pin4
DC12V
VR10
25k 40%
R8
1k
.01
5
6
3
2
R2
100
1A
G
+
F
R
T
P
S
A
CL
C1
.1/50v
F2
DC12V
C2
.1/50v
R11
100
R5
100
J2
U1pin4 U1pin11
S
R4
100
J5
R10
100
R3
100
C4
10k
R58
R17
1k
C3
.1
12
8
U1B
U1A
1
7
10
13
11
D3
14
1
D2
CLK 5
U1D
13
R29
27k
R16
4.7k
D4
D6
16
C16
.1
Q1
3906
R26
4.7K
LM358
U4A
3
D9
R28
100
D7
D5
DC12V
DC12V
R57
1k
4042
U3
7
2
R9
10k
R7
1k
G
CL
S
G
2
1
X
X
C6
.1
C9
.1
R12
10k
C8
.1
R6
100k
6
C14
.01/50v
R21
6.8k
Q4
3904
DC12V
R22
1k
R15
10k
R18
10
RL2 ANT
R20
6.8k
R14
10
RS
T
P
S
S
S
R13
1k
Q5
2955
RL1 INP
4.7k
C22
.47
Q2
2955
Q3
3904
C7
.01/50V
R19
10
R23
1k
LM358
U4B
7 R24
5
C10
.01
R25
4.7k
C15
.47
R27
4.7K
D8
1
C5
.01
RJ1
J4
GND
160
BAND
FILTER
F
K
10
GND
C13
.1
RL2 ANT
FAN
J7
RL1 INP
DC12V
R33
4.7k
G
S
S
X
X
C27
.1
C26
.1
C25
.1
C24
.1
C23
.1
14
13
DC12V
Switched
R32
10k
U2pin4 U2pin11
R31
4.7k
C35
.1
R40
4.7k
R41
10k
3
2
U2A
1
FB
R37
2.2k
Q7
3055
R35
1k
C21
+.47
R38
10k
R34
10k
FAN
C19
.1
160
BAND SWITCH
FAN
R30
1k
R36
2.2k
C18
.1
9
U2C
IN
R42
5
6
U2B
7
R45
1k
R51
4.7k
Q8
3906
Bias B R50
10K
C31
.47
+
1k 40% 1k 40%
VR1
VR2
R53
100
J8A J8B
HS
FET
1k 40%
VR4
DC12V
Q12
Bias SW
Bias B
R49
4.7k
R48
10K
C30
R54
100
C33
47/50v
VR5
1k 40%
VR6
1k 40%
HS
FET
Bias A
Q10
3904
.47
R55
100
C28
.1
1k 40%
VR3
C17
.1
Q11
3904
Bias B
47/50v
C32
R52
1k
3055
Bias A
C29
.1
916
D10
OUT
Bias A
R44
1k
C34
.1
U5
LM7809
DC12V
Q9
3906
1k
R47
1k
4.7k
+
Q6
3055
R46
8
DC12V
R43
10k
10
C20
+ .47
10
J3
DC12V
+
STBY
MISC
U2D
12
+
J6
FA
+
C11
.01
R39
10k
+
C12
.01
VR7
1k 40%
VR8
1k 40%
C36
.1
R56
100
C37
.1
Figure 5
15
Combiner 2000 watt CMB
CMB 081217 rev0a
T5
T6
50 OHMS
IN
PA A
100
50 OHMS
IN
50 OHMS
OUT
PA B
Figure 6
Filter FL10
FL10 081210
L1
1
In
C1
130pF
C2
130pF
L2
1
C3
130pF
Out
C4
130pF
Figure 7
16
Metering Board MB1
FWD SPEED
-12V
REF SPEED
R15
1m 40%
R5
10k
LM324
8V
U1A
3
2
4
11
R18
4.7k
D3
1N916
D1
1N916
1
C8
R6
1m
.01
CTRL
J1
D2
1N916
U1B
5
C3
7
6
R9
10k
CAL
8V
R2
2.5k 40%
+
R20
4.7k
R16 1m 40%
2.2
PIN 1...GND
2...12 3...12 +
4...FW D PW R
5...RFLCTD PW R
6...TRANSMIT LED
7...COMBINER LED
8...SW R LED
9...ALC VOLTAGE OUT
10...COMBINER LVL
R3
5.6k
C2
.1
D6
1N916
D9
1N916
D5
1N916
-12V
D8
1N916
R37
1k
8V
R17
4.7k
R35
100k
C9
12
D4
U1D 1N916
13
10
14
R8
1M
.01
C4
8
R1
2.5k 40%
C1
.1
2.2uF
+12
R28
10k
3
C10
R26
560
.1
U2A
2
R33
220k
ALC
R39
-12V
CTRL
10k 10%
R12
10
J1
U2B LM358
8
5
R27
7
6
1k
4
D4
LED4
R31
1m
D7
1N916
C11
.1
R30
6.8k
R32
1k
C7
.1
3
5
R10
68K
10
R
R11
68K
C13
.1
9
C
V2
6
A
CURRENT
J3
CURRENT
J3
V1
+
SW 1
METER BRIGHTNESS
8
7
PIN 1...V2
2...V2
3...V1
4...V1
J4
.1
R25
1k
Gn d
+
Fwd
Ref
T
C
S
A
CL
Gn d
F
+
L
G
R7
10
C5
C6
.1
J2
11
-
A
V1
R4
5.6k
V2
C
4
R21
100
R19
10
12
R
2
PIN 1...GND
2...FW D
3...MM 4...MM +
5...LMP
6...GND
MULTI METER
C12
.1
1
R29
1k
1
MULTI METER
J2
REF CAL
U1C
9
+
R36
1k
R34
220K
+12V
R13
1k
R14
1k
+12V
METER BRIGHTNESS
J4
1,2 low
2,3 high
R38
4.7K
C16
.1
R22
1k
R23
47k
R24
47k
Q2
C15
2N3904
.1
R41
1k
D1
LED3
Q1
C14
.1
2N3904
R40
1k
D2
LED2
D3
LED1
C17
.1
MB1 Rev3 090227
PEAK METER / ALC
Figure 8
17
PA Boards
PAM-600
Yel
C4
.1uF
C1
00
R2
NTC
Org
R8
18
18R10
PA In
R13
P1
T1
C10
470pF
CONN
Red
C6
.33uF
C7
.33uF
R7
1k
R9
1k
Q2
1 R11
C8
.1uF
C11
330pF
18 R19
C3
470pF
Q1
R6
18
C5
.1uF
R1
NTC
C2
.001uF
1 R4
18 R3
.1uF
R5
470
PA Out
081217 Revision 0a
22
R14
22
R15
22
R16
22
R17
22
R18
22
R12
C9
470
.001uF
T3
X1
T2
R21
C13
470
.001uF
T4
C23
.33uF
Q3
1 R20
C24
.33uF
FB2
V1 Red
C12
.1uF
C14
.1uF
R22
18
C17
.33uF
C15
R24
18
.1uF
Brn
C16
.33uF
18 R26
R23
1k
C21
.33uF
Q4
R28
C22
.33uF
50VDC
C25
.47uF
C26
100uF
R25
1k
1 R27
C18
.1uF
FB1
C20
470pF
C19
470 .001uF
Figure 9
Power Divider PD8
100 R7
T2
R2
27
Out
R1
200
R3
200
R5
27
R4
200
T1
Out
R6
200
PD8 rev0
-8db splitter
In
081126
Figure 10
18
Interface Connections RJ45
RJ45 Rev0 090217
Pin8
J1
Pin6
Pin7
-
-
Pin4
Pin5
Pin8
Pin2
Pin3
Pin6
Pin7
Pin1
J2
Pin4
Pin5
Pin2
Pin3 Pin1
R2
560
1/2W
D1 D2
R1
1k
C1
0.1uF
J3
CONN
Figure 11
19
Relay Board
HD1
RLA 081210
HD4
PA IN
RADIO
RL4
ANTENNA
PA OUT
RL1
MAY 21, 2008
Figure 12
Reference figures and drawings
Figure 1 Interconnections ....................................................................................................................................... 7
Figure 2 Amplifier Front......................................................................................................................................... 9
Figure 3 ................................................................................................................................................................. 13
Figure 4 ................................................................................................................................................................. 14
Figure 5 ................................................................................................................................................................. 15
Figure 6 ................................................................................................................................................................. 16
Figure 7 ................................................................................................................................................................. 16
Figure 8 ................................................................................................................................................................. 17
Figure 9 ................................................................................................................................................................. 18
Figure 10 ............................................................................................................................................................... 18
Figure 11 ............................................................................................................................................................... 19
Figure 12 ............................................................................................................................................................... 20
20