Codan Radio Communications VT-3A130-S-FSH Transmitter User Manual VT3A130 Amplifier Instruction Manual

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Document Description	VT3A130 Amplifier Instruction Manual
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Document Type	User Manual
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Date Submitted	2000-04-10 00:00:00
Date Available	2000-05-09 00:00:00
Creation Date	2000-04-06 11:21:09
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Document Lastmod	2000-04-06 12:03:45
Document Title	VT3A130 Amplifier Instruction Manual

DANIELS
TM
ELECTRONICS LTD.
MT-3 RADIO SYSTEMS
VT-3A130 AMPLIFIER
INSTRUCTION MANUAL
118 - 138 MHz
Covers the following:
Amplifier portion of VT-3A130-SYD410
Copyright © 2000 Daniels Electronics Ltd. All rights reserved. No part of this publication may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,
mechanical, photocopying, recording or otherwise, without the prior written consent of Daniels
Electronics Ltd.
DE™ is a registered trademark of Daniels Electronics Ltd. registered in the United States Patent and
Trademark Office.
Issue:
Issue Date:
Printing Date:
Part No.:
Previous Issue:
March 2000
Previous Issue Date: March 98
March 2000
IM22-VT3A130AMP
Daniels Electronics Ltd.
Victoria, BC.
PRINTED IN CANADA
Reviewed By:
Quality Assurance:
Claudia Boorman
Name
Signature
_________________
Date
NOTE:
The user's authority to operate this equipment could be revoked through any
changes or modifications not expressly approved by Daniels Electronics Ltd.
The design of this equipment is subject to change due to continuous
development. This equipment may incorporate minor changes in detail from the
information contained in this manual.
DANIELS
DE ELECTRONICS
ii
VT-3A130 Amplifier Instruction Manual
TABLE OF CONTENTS
Page
GENERAL................................................................................. 1-1
1.1 Introduction .......................................................................... 1-1
1.2 Performance Specification.......................................................... 1-1
THEORY OF OPERATION............................................................. 2-1
2.1 General ............................................................................... 2-1
2.2 Power Requirements................................................................ 2-1
2.3 RF Circuitry.......................................................................... 2-1
2.3.1 VT-3/150 Lowpass Filter ....................................................... 2-2
2.4 Power Supply Circuitry. ........................................................... 2-2
VT-3A130 AMPLIFIER ALIGNMENT ............................................... 3-1
3.1 General ............................................................................... 3-1
3.2 Repair Note .......................................................................... 3-1
3.3 Printed Circuitboard Numbering Convention.................................... 3-1
3.4 Recommended Test Equipment List............................................... 3-2
3.5 VT-3A130 Amplifier Alignment................................................... 3-2
3.5.1 General ............................................................................ 3-2
3.5.2 VT-3A130 Amplifier Adjustment .............................................. 3-2
3.5.3 Changing Power Output......................................................... 3-3
ILLUSTRATIONS AND SCHEMATIC DIAGRAMS .............................. 4-1
4.1 VT-3A130 Amplifier................................................................ 4-1
4.1.1 VT-3A130 Amplifier Component Layout ..................................... 4-2
4.1.2 VT-3A130 Amplifier Schematic Diagram ..................................... 4-3
4.2 VT-3A130 Lowpass Filter ......................................................... 4-5
4.2.1 VT-3A130 Lowpass Filter Component Layout............................... 4-5
4.2.2 VT-3A130 Lowpass Filter Schematic Diagram............................... 4-5
PARTS LISTS ............................................................................ 5-1
5.1 VT-3A130 Amplifier Electrical Parts List ........................................ 5-1
5.2 VT-3A130 Lowpass Filter Electrical Parts List.................................. 5-4
5.3 VT-3A130 Amplifier Mechanical Parts List...................................... 5-4
REVISION HISTORY ................................................................... 6-1
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VT-3A130 Amplifier Instruction Manual
1
GENERAL
1.1
Introduction
The VT-3A130 Amplifier provides the final stage of RF amplification and filtering for the VT-3A
Transmitters. The output power is 1.0 - 4.0 Watt adjustable (carrier only). The amplifier operates
over 118MHz - 138 MHz frequency range without tuning.
Output filtering for the VT-3A130 Amplifier is provided by an Output Lowpass Filter Board. The
Output Lowpass Filter Board is mounted in a separate compartment of the amplifier case in order to
provided maximum attenuation of harmonic and other spurious signals.
Refer to section 4.1.2 "VT-3A130 Amplifier Schematic Diagram" for the Amplifier schematic
diagram and section 4.1.3 for the Output Lowpass Filter component layout and schematic diagram.
1.2
Performance Specification
Type:
VT-3 series VHF Amplifier module
Family:
VT-3A130
Frequency Range:
118.0 MHz to 138.0 MHz
RF Power Output:
1.0 - 4.0 Watts adjustable (carrier only)
RF Power Input
Nominal level from -5 dBm to +5 dBm
System Impedance:
50 Ω
Spurious and Harmonics Emissions:
More than 90 dB below carrier
Modulation:
6K00A3 (Amplitude Modulation)
Transmitted Noise
More than 45 dBc below carrier
Audio Response:
Flat audio; +1/-3 dB: 300 Hz - 3 kHz
Audio Distortion:
Less than 3% -40˚C to +60˚C at 30% modulation
Less than 5% -40˚C to +60˚C at 90% modulation
Load VSWR tolerance:
Z load = 20:1:
Operating Voltage:
+13.8 Vdc Nominal (range +10 to +17 Vdc),
+9.5 Vdc Regulated.
Active Current:
+13.8 Vdc supply less than 1.5 A at Pout=4
Standby Current:
Typically less than 4 mA
DE
DANIELS
ELECTRONICS
VT-3A130 Amplifier Instruction Manual
1-1
Amplifier Enable:
Active to ground.
Output Power Rise Time (10-90% of
steady state value)
Less than 20 ms
Output Power Fall Time (90-10% of
Steady state value)
Less than 10ms
Key-On/Key-off Spectral Mask
Transients are at least 80 dBc for frequencies
± 400 kHz from carrier.
Operating Temperature Range:
-30˚C to +60˚C, optional - 40˚C temperature test.
Operating Humidity:
95% Relative Humidity (Non-condensing) at
+25°C
DANIELS
DE ELECTRONICS
1-2
VT-3A130 Amplifier Instruction Manual
2
2.1
THEORY OF OPERATION
General
VT-3A130 Amplifier is a Class A linear amplifier with a low level AM modulator. A built in
regulated power supply provides approximately 15.0Vdc output voltage with the input voltage
range of 10.0 Vdc to 17 Vdc. This amplifier utilizes a 10 Watt hybrid power amplifier module
manufactured by Mitsubishi. The module is mounted directly to the heatsink with its leads soldered
to a circuit board where DC supply voltage and RF input and output connections are made.
Power for the VT-3A130 Amplifier is provided from +13.8 Vdc and 9.5Vdc supplies. The
supplies can be continuously connected to the amplifier. The VT-3A130 Amplifier will draw only
about 4 mA of current from +13.8 Vdc and about 0.1 mA from 9.5Vdc until the AMPLIFIER
ENABLE pin is grounded.
The VT-3A130 Amplifier is housed in a machined aluminum case that ensures optimum RF
shielding, provides a good ground, and also acts as a heatsink.
2.2
Power Requirements
The current drawn from the +9.5 Vdc supply should not exceed 10 mA. Current consumption of
the +13.8 Vdc line is dependent on transmitter frequency, output power, temperature, and supply
voltage and can range from 800 mA to 1500 mA. The current drawn from the +13.8 Vdc supply
should not exceed 1500 mA under normal circumstances and should never be allowed to exceed
1700 mA.
2.3
RF Circuitry
Refer to Section 4.1.2 "VT-3A130 Amplifier Schematic Diagram". The RF input signal with a
level of -5 dBm to +5 dBm is fed to the VT-3A130 Amplifier Board and then is modulated by a
balanced AM Modulator which consists of Q1, Q3, Q4, and a wide band RF transformer XFMR1.
Q1, Q3 collectors are supplied by 15.0 Vdc in order to increase the modulation linearity. On the
contrary, the base circuitry of Q1, Q3 and Q4 are biased by 9.5 Vdc. The typical output power
from the Modulator is about 3dBm to 5 dBm. The signal is then amplified further by a Hybrid
Power Amplifier Module U1, which is the class A, 10 watt linear amplifier. The U1 is supplied
from a 15.0Vdc internal regulated power supply. Maximum carrier power output is 4 - 5 watt for
the input voltage range from 10 Vdc to 17 Vdc. Output filtering for the VT-3A130 Amplifier is
provided by a Low Pass Filter Board. The Low Pass filter assembly is mounted in a separate
compartment of the amplifier case in order to provided maximum attenuation of harmonic and other
spurious signals. Refer to Section 4.1.1 "VT-3A130 Amplifier Component Layout"
DANIELS
DE ELECTRONICS
VT-3A130 Amplifier Instruction Manual
2-1
The part of the output RF energy is coupled by a directional detector circuit TL1 which provides a
means of linearization of the audio and leveling of the output power over the frequency range 118
MHz to 138 MHz.
The AC coupled audio signal is applied to the inverting input of U4a in order to provide
predistortions to the input modulation audio signal, which is supplied from the audio amplifier U2
to the non-inverting input of U4a.
On the contrary the DC coupled part of the detected audio is passed through the 50Hz low pass
filter U6a, U6b, and than compared with a certain DC level which is set by R19. The difference of
the signals is amplified by U4b and applied to pin 2 of the Power Amplifier Module in order to
keep the output power relatively constant over the frequency range of 118MHz to 138MHz.
2.3.1 VT-3/150 Lowpass Filter
The VT-3/150 Output Lowpass Filter is a 50 ohm, 6 pole, reciprocal filter with a 3 dB cutoff
frequency of approximately 150 MHz. The low pass filter assembly attenuates the desired signal's
harmonics as well as any other out-of-band emissions so that a 'clean' RF signal is output to the
antenna connector.
2.4
Power Supply Circuitry.
The VT-3A130 Amplifier has shutdown circuitry based on Q2 that allows decrease power
consumption, less than 0.1 mA from 9.5Vdc, in standby mode. The voltage level on the amplifier
enable line of less than +2.0 Vdc turns on the transistor Q2. Q2 supplies the base circuitry of Q1,
Q3, Q4, and operational amplifiers U2, U4, and U6.
The U3 LM2588 used as a step-up (boost) regulator. This is a switching regulator that produces an
output voltage greater than the input supply voltage. The following is the LM1084ADJ, a low
dropout voltage (LDO) positive adjustable regulators with a maximum dropout of 1.5V at 5A of
load current. The LM1084 used as a postregulator that reduces the ripple current and also prevents
the output voltage level from overshooting the maximum of 16Vdc.
DANIELS
DE ELECTRONICS
2-2
VT-3A130 Amplifier Instruction Manual
3
3.1
VT-3A130 AMPLIFIER ALIGNMENT
General
Connections to the power supply, audio input and transmit enable line are clearly marked on the
amplifier case. The amplifier is enabled when the enable line (AMPLIFIER ENABLE pin) is
grounded.
If the amplifier is installed in the transmitter, alignment is simplified by using the SR-3 Subrack,
SM-3 System Monitor, and RF extender cable to provide transmitter power and signal
interconnection (see the Transmitter Main Board Manual for details). For complete transmitter
alignment, the Transmitter Main Board, Synthesizer, Amplifier, and Audio Processor should be
tuned in the aforementioned order. Please refer the corresponding manuals for each module.
3.2
Repair Note
The VT-3A130 Amplifier is mainly made up of surface mount devices which should not be
removed or replaced using an ordinary soldering iron. Removal and replacement of surface mount
components should be performed only with specifically designed surface mount rework and repair
stations complete with ElectroStatic Dissipative (ESD) protection.
When removing Surface Mount Solder Jumpers, it is recommended to use solder braid in place of
manual vacuum type desoldering tools when removing jumpers. This will help prevent damage to
the circuit boards.
3.3
Printed Circuitboard Numbering Convention
To ease troubleshooting and maintenance procedures, Daniels Electronics Limited has adopted a
printed circuitboard (PCB) numbering convention in which the last two digits of the circuitboard
number represent the circuitboard version. For example:
• PCB number 43-912010 indicates circuitboard version 1.0;
• PCB number 50002-02 indicates circuitboard version 2.0.
All PCB's manufactured by Daniels Electronics are identified by one of the above conventions.
DANIELS
DE ELECTRONICS
VT-3A130 Amplifier Instruction Manual
3-1
3.4
Recommended Test Equipment List
Alignment of the transmitter requires the following test equipment or its equivalent.
Dual Power Supply:
Oscilloscope / Multimeter:
Current Meter:
Radio communications test set:
VSWR 3:1 mismatch load:
Alignment Tool:
3.5
Regulated +9.5 Vdc at 0.1 A.
Regulated +13.8 Vdc at 2 A - Topward TPS-4000
Fluke 97 Scopemeter
Fluke 75 multimeter
Marconi Instruments 2955R
JFW 50T-035-3.0:1
Johanson 8766
VT-3A130 Amplifier Alignment
3.5.1 General
The VT-3A130 Amplifier is a module that is factory assembled to operate in the frequency band:
118MHz to 138MHz. The amplifier requires -5 dBm to 5 dBm of input power and is continuously
adjustable over its power range of 1.0 to 4.0 Watts.
3.5.2 VT-3A130 Amplifier Adjustment
1.
Apply power to the amplifier's +13.8 Vdc and +9.5Vdc pins. The +9.5 Vdc power
supply must be well regulated.
2.
Connect the amplifier's antenna output connector to the type N input of the radio
communications test set through a short section of low loss 50 Ω coaxial cable.
3.
Turn the two of the adjustment potentiometers POWER ADJUST pot R19 and
AUDIO ADJUST pot R35 fully counterclockwise.
4.
Turn DISTORTION ADJUST pot R14 and POWER CONTROL ADJUST pot R24
to its center position
6.
Apply a non-modulated 118 MHz RF signal of - 5 dBm / +5 dBm to the RF INPUT
connector.
7.
Turn on the amplifier by applying a ground to the amplifier ENABLE INPUT pin.
8.
Adjust POWER ADJUST pot R19 so that the output power is about 4Watt by turning
it clockwise. Do not let the current through the transistor U1 exceed 1.5 A on the
+13.8 Vdc line.
DANIELS
DE ELECTRONICS
3-2
VT-3A130 Amplifier Instruction Manual
9.
Apply a 1000 Hz signal with 0.200 Vrms level to the amplifier's
MODULATION INPUT and adjust AUDIO ADJUST pot R35 to obtain 90% of AM
modulation.
10. Adjust the DISTORTION ADJUST pot R14 to the lowest distortion (less than 5%)
11. Change the RF signal frequency to 128 MHz, 138 MHz and control the Modulation
Level and Output Power (with no modulation).
12. Re-adjust the AUDIO ADJUST pot R35 (if it necessarily) so that the modulation level
do not exceed 90% at 128 MHz and 138 MHz frequencies.
13. Re-adjust the POWER ADJUST pot R19 (if it necessarily) to achieve a minimum
tolerance of the output power (4 Watt +/- 1dB).
3.5.3 Changing Power Output
The power amplifier's carrier output level can be adjusted from 1.0 to 4.0 watts.
change the RF output level, follow the procedures described below.
To
1.
Apply power to the amplifier's +13.8 Vdc and +9.5Vdc pins. The +9.5 Vdc power
supply must be well regulated.
2.
Connect the amplifier's antenna output connector to the type N input of the radio
communications test set through a short section of low loss 50 Ω coaxial cable.
3.
The amplifier requires -5 dBm to 5 dBm of RF power
4.
Turn on the amplifier by applying a ground to the AMPLIFIER ENABLE pin.
5.
Adjust the POWER ADJUST pot R19 to achieve the desired RF carrier power output
between 1.0 Watt and 4.0 Watt.
6.
Apply a 1000 Hz signal with 0.200Vrms level to the power amplifier's
MODULATION INPUT and adjust AUDIO ADJUST pot R35 to obtain 90% of modulation.
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VT-3A130 Amplifier Instruction Manual
4
4.1
ILLUSTRATIONS AND SCHEMATIC DIAGRAMS
VT-3A130 Amplifier
This Page Intentionally Left Blank
DANIELS
DE ELECTRONICS
VT-3A130 Amplifier Instruction Manual
4-1
4.1.1
VT-3A130 Amplifier Component Layout
TP3
C35
220µH
U1
M68721
C41
220µH
C39
100nF
R46
332R
R45
3k74
TP1
C12
100nF
C2
D2
100nF
C1
R39
SR502
C33
220µH
R7
R10
47R5
100nF
R8
22R1 C11
1k82
100nF 332R
C3
C13
Q1
100nF
R37 R38
100nF
L1
D1
22R1 22R1 NE02139
R9
1.5µH
MMBD701
Q3
3k01
NE02139
R1
C6
R5
1k82
R31
3k01 150pF
TP2
R2
100R
Q4
R29
3k01 NE02139 R34
R30
10k
L3
C25
56k2
10k0
C34
TL1
R33
1.5µH
100nF
1µF
2k21
C19
R26
C18 4.7µF
100k
C38
R32
1nF
C22 R16 100nF
C14
1k0
U4
Q2
100nF
470k
10nF
MC33172
VP0610T
C29
R12
C9
100nF
75k R28
47µF
R14
R4
75k
50k0
C23
100R
C20
R13
C10
R3
100nF
R11
10k
47µF
C37
47µF
75k
27k4
100nF
R25
C5
4k75
100nF C32
C31
R18
R27
330pF
R15
100nF 100k
30k9
383R
C24
R23
R24
27k4 100nF
50k0
C17
220µH
U6
R17
100k
C26 MC33172
C27
1nF
R20
4.7µF
221k
C30
10µF
C21
100nF
C28
100nF C16
C15
18nF
100nF
U2
LM386
R36
10R0
R21
R22
1k0
274k
U5
LM1084
C36
220µH
R42
4k75
R41
27k4
R47
3k92
L2
33µH
C40
N\I
R40
1k82
C8
100nF
R43
22k6
R44
221k
C7
100nF
D3
BAS16
R6
N\I
U3
LM2588
R19
50k0
PCB 50083-04
C5
R35
5k0
C1
C2
C4 10nF
XFMR1
TTWB
PCB 50086-01
VT-3A130 Lowpass Filter Assembly
DANIELS
ELECTRONICS
VT3A130AMPM1B
VICTORIA B.C .
TITLE: AM WIDEBAND
WIDEBAND TX
TX AMP
AMP SURFACE
THROUGHMOUNT
HOLE LAYOUT
LAYOUT & DESIG
DANIELS
TM
ELECTRONICS LTD.
4-2
DATE: 04 MAY 99
DWG No: 50083AS1
50083AS2
50083AT1
DRAWN BY:
SHANE A
VT-3A130 Amplifier Instruction Manual
DWG REV DATE: 22 FEB 2000
4.1.2
VT-3A130 Amplifier Schematic Diagram
TO ALL 9.5V SUPPLY POINTS
FIL1
LOW PASS FILTER
Q2
VP0610T
RFC1
5500PF
U1
M68721
TL1
0.5" COAX
9.5Vdc
C10
47uF
C20
47uF
C9
47uF
C14
10nF
RF
IN
118-138 MHz
RF
OUT
AMPLIFIER ENABLE
D1
MMBD701
XFMR1
TTWB-4-B
RFC2
5500PF
R32
1K00
J2
SMA
R4
100R0
R2
3K01
C11
100nF
R7
22R1
R8
332R0
15V
8dB Att.
J1
SMB
R9
3K01
Q1
NE02139
R37
22R1
C4
10nF
R38
22R1
C32
330pF
R10
1K82
Appr. 15.5 Vdc
Appr. 16.5 Vdc
U5
LM1084
TP1
L2
33uH
1 IN
C8
100nF
D2
SR502
U3
LM2588
Distortion adjust
R40
1K82
R14
50K0
D3
BAS16
R47
3K92
C25
100nF
R11
27K4
R33
2K21
R31
100R0
R42
4K75
C41
220uF
C5
100nF
U6a
MC33172
C38
100nF
C39
100nF
R45
3K74
C31
100nF
C29
100nF
U4a
MC33172
U6 b
MC33172
Power adjust
9.5V
R22
274K0
C34
1.0uF
R19
50K0
R21
1K0
2.5Vdc - 3.5Vdc
R20
221K0
TP2
R29
10K0
U4 b
MC33172
Power control adjust
AUDIO IN
C28
100nF
R25
4K75
C30
10uF
R23
27K4
R26
100K0
9.5V
R35
5K0
R24
50K0
R27
30K9
R30
56K2
RFC4
5500PF
C24
100nF
R18
100K0
C23
100nF
C36
220uF
50Hz Low Pass Filter
R17
100K0
R44
221K0
C7
100nF
R28
75K0
R6
N/I
C40
N/I
C27
4.7uF
C26
1.0nF
C19
4.7uF
C18
1.0nF
R46
332R0
GND
9.5V
R16
470K0
R13
10K0
R12
75K0
R34
10K0
FEED 3
BACK
ON/OFF
R43
22K6
Q4
NE02139
C35
220uF
C22
100nF
9.5V
ADJ
SWITCH
COMP
R5
3K01
TO ALL 15V
R41
27K4
IN
C17
220uF
OUT
C6
150pF
L3
1.5uH
9.5V
TP3
C33
100nF
C13
100nF
R3
75K0
RFC3
10 - 17 Vdc 5500PF
C3
100nF
C1
220uF
15V
R1
1K82
R39
47R5
L1
150nH
C12
100nF
Q3
NE02139
C2
100nF
U2
LM386
C21
100nF
R15
383R0
C16
18nF
C15
100nF
R36
10R0
C37
100nF
HIGHEST REFERENCE DESIGNATORS
C42
D3
L3
Q4
RFC4
TL1, TP3
J2
DANIELS
R47
U6, XFMR1
UNUSED REFERENCE DESIGNATORS
-----
-----
-----
-----
-----
-----
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VICTORIA B.C.
ELECTRONICS LTD.
TITLE:
VT-3A-130 AMPLIFIER SCHEMATIC DIAGRAM
DATE:
23 JUNE 1999
DWG No:
VT3A130AMPM2B
BOARD No:
50083-04
DWN BY: STAN POLYAKOV
APRVD:
DWG REV DATE: 9 MARCH 2000
BOARD REV:
04
DANIELS
ELECTRONICS LTD.
VT-3A130 Amplifier Instruction Manual
4-3
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4-4
VT-3A130 Amplifier Instruction Manual
4.2
VT-3A130 Lowpass Filter
4.2.1 VT-3A130 Lowpass Filter Component Layout
C4
30pF
L2
C2
7.5pF
L1
C6
24pF
L3
C1
15pF
C5
4.7pF
C3
30pF
PCB 50086-01
VT3A130AMPM3A
4.2.2 VT-3A130 Lowpass Filter Schematic Diagram
L1
3.0 TURNS
RF INPUT
L3
3.0 TURNS
RF OUTPUT
L2
4.0 TURNS
C5
4.7pF
C1
15pF
C2
7.5pF
C3
30pF
C4
30pF
C6
24pF
HIGHEST REFERENCE DESIGNATORS
C6
L3
-----
-----
-----
-----
-----
-----
-----
UNUSED REFERENCE DESIGNATORS
DANIELS
VICTORIA B.C.
ELECTRONICS LTD.
TITLE: VT-3A130 LOW PASS FILTER
-----
-----
-----
DATE:
-----
-----
-----
DWG No: VT3A130AMPM4A
02 JUNE 1999
DWG REV DATE:
-----
-----
-----
BOARD No: 50086-01
BOARD REV: 01
DWN BY: STAN POLYAKOV
APRVD:
DANIELS
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VT-3A130 Amplifier Instruction Manual
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DANIELS
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4-6
VT-3A130 Amplifier Instruction Manual
5
PARTS LISTS
5.1
VT-3A130 Amplifier Electrical Parts List
Ref
Design
Description
Part No.
C1
C2, C3
C4
C5
C6
C7, C8
C9, C10
C11 – C13
C14
C15
C16
C17
C18
C19
C20
C21 – C25
C26
C27
C28, C29
C30
C31
C32
C33
C34
C35
C36
C37 – C39
C40
C41
CAP., 220uF ELECTRO.,AXIAL,25V
CAP., SM, 100nF CER., 0805, X7R, 50V
CAP., SM, 10nF CER,0805,X7R,50V
CAP., SM, 100nF CER., 0805, X7R, 50V
CAP., SM, 150pF CER., 0805,C0G
CAP., SM, 100nF CER., 0805, X7R, 50V
CAP., SM, 47uF TANT., 20%, 16V
CAP., SM, 100nF CER., 0805, X7R, 50V
CAP., SM, 10nF CER,0805,X7R,50V
CAP., SM, 100nF CER., 0805, X7R, 50V
CAP., SM, 18nF CER., 1206, X7R
CAP., 220uF ELECTRO,RADIAL,25V
CAP., SM, 1.0nF CER., 0805, X7R, 50V
CAP., SM, 4.7uF TANT., 10%, 16V
CAP., SM, 47uF TANT., 20%, 16V
CAP., SM, 100nF CER., 0805, X7R, 50V
CAP., SM, 1.0nF CER., 0805, X7R, 50V
CAP., SM, 4.7uF TANT., 10%, 16V
CAP., SM, 100nF CER., 0805, X7R, 50V
CAP., SM, 10uF TANT., 20%, 16V
CAP., SM, 100nF CER., 0805, X7R, 50V
CAP., SM, 330pF CER., 0805,C0G
CAP., SM, 100nF CER., 0805, X7R, 50V
CAP., SM, 1.0uF TANT., 20%,16V
CAP., 220uF ELECTRO,RADIAL,25V
CAP., 220uF ELECTRO,RADIAL,25V
CAP., SM, 100nF CER., 0805, X7R, 50V
NOT INSTALLED
CAP., 220uF ELECTRO,RADIAL,25V
1064-1GE221TL
1008-5A104K5R
1008-4A103K5R
1008-5A104K5R
1008-2A151J1G
1008-5A104K5R
1055-6D476M16
1008-5A104K5R
1008-4A103K5R
1008-5A104K5R
1008-4B183K5R
1065-1FD221ML
1008-3A102K5R
1055-5B475K16
1055-6D476M16
1008-5A104K5R
1008-3A102K5R
1055-5B475K16
1008-5A104K5R
1055-6C106M16
1008-5A104K5R
1008-2A331J1G
1008-5A104K5R
1055-5A105M16
1065-1FD221ML
1065-1FD221ML
1008-5A104K5R
NOT INSTALLED
1065-1FD221ML
D1
D2
D3
DIODE, MMBD701 HOT CARR.,SOT23
DIODE, SR502,5A SCHOT,D0201-AD
DIODE, BAS16 SWITCHING, SOT23
2105-MMBD7010
2004-SR502000
2100-BAS16000
J1
J2
CONN., SMB, JACK,2 HOLE FLANGE
CONN., N JACK, PANEL MNT,C/SNK
5120-J2SC01BG
5184-10923011
L1
L2
L3
CHOKE, RF/MOULD.,150nH,20%,.37
INDUCTOR, SM, 33uH, POWER, 2A
INDUCTOR, SM, 1.5uH 10%, 1812
1251-2B00R15K
1247-4D330000
1255-3G1R500K
PCB
PCB, AMPLIFIER, AM VT-3A130-10
4322-15500834
Q1
Q2
Q3, Q4
TRANSISTOR, NE02139 HIGH FREQ.
MOSFET, VP0610T,P CHAN.,SOT-23
TRANSISTOR, NE02139 HIGH FREQ.
2124-NE021390
2142-VP0610T0
2124-NE021390
DANIELS
DE ELECTRONICS
VT-3A130 Amplifier Instruction Manual
5-1
Ref
Design
Description
RFC1
RFC2
RFC3
RFC4
FILTER,
FILTER,
FILTER,
FILTER,
R1
R2
R3
R4
R5
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17, R18
R19
R20
R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32
R33
R34
R35
R36
R37, R38
R39
R40
R41
R42
R43
R44
R45
R46
R47
RES., SM, 1K82 0805, 1%,100ppm
RES., SM, 3K01 0805, 1%,100ppm
RES., SM, 75K0 0805, 1%,100ppm
RES., SM, 100R0 0805, 1%,100ppm
RES., SM, 3K01 0805, 1%,100ppm
RES., SM, 22R1 1206, 1%,100ppm
RES., SM, 332R0 0805, 1%,100ppm
RES., SM, 3K01 0805, 1%,100ppm
RES., SM, 1K82 0805, 1%,100ppm
RES., SM, 27K4 0805, 1%,100ppm
RES., SM, 75K0 0805, 1%,100ppm
RES., SM, 10K0 0805, 1%,100ppm
POT., SM, 50K0 12T, TOP ADJUST
RES., SM, 383R0 0805, 1%,100ppm
RES., SM, 470K0 0805, 1%,100ppm
RES., SM, 100K0 0805, 1%,100ppm
POT., SM, 50K0 12T, SIDE ADJ.
RES., SM, 221K0 0805, 1%,100ppm
RES., SM, 1K0 0805, 1%,100ppm
RES., SM, 274K0 0805, 1%,100ppm
RES., SM, 27K4 0805, 1%,100ppm
POT., SM, 50K0 12T, TOP ADJUST
RES., SM, 4K75 0805, 1%,100ppm
RES., SM, 100K0 0805, 1%,100ppm
RES., SM, 30K9 0805, 1%,100ppm
RES., SM, 75K0 0805, 1%,100ppm
RES., SM, 10K0 0805, 1%,100ppm
RES., SM, 56K2 0805, 1%,100ppm
RES., SM, 100R0 0805, 1%,100ppm
RES., SM, 1K0 0805, 1%,100ppm
RES., SM, 2K21 0805, 1%,100ppm
RES., SM, 10K0 0805, 1%,100ppm
POT., SM, 5K0 12T, SIDE ADJ.
RES., SM, 10R0 0805, 1%,100ppm
RES., SM, 22R1 1206, 1%,100ppm
RES., SM, 47R5 1206, 1%,100ppm
RES., SM, 1K82 0805, 1%,100ppm
RES., SM, 27K4 0805, 1%,100ppm
RES., SM, 4K75 0805, 1%,100ppm
RES., SM, 22K6 0805, 1%,100ppm
RES., SM, 221K0 0805, 1%,100ppm
RES., SM, 3K74 0805, 1%,100ppm
RES., SM, 332R0 0805, 1%,100ppm
RES., SM, 3K92 0805, 1%,100ppm
1150-3A1821FP
1150-3A3011FP
1150-4A7502FP
1150-2A1000FP
1150-3A3011FP
1150-1B22R1FP
1150-2A3320FP
1150-3A3011FP
1150-3A1821FP
1150-4A2742FP
1150-4A7502FP
1150-4A1002FP
1172-M30503W5
1150-2A3830FP
1150-5A4703FP
1150-5A1003FP
1172-M30503X5
1150-5A2213FP
1150-3A1001FP
1150-5A2743FP
1150-4A2742FP
1172-M30503W5
1150-3A4751FP
1150-5A1003FP
1150-4A3092FP
1150-4A7502FP
1150-4A1002FP
1150-4A5622FP
1150-2A1000FP
1150-3A1001FP
1150-3A2211FP
1150-4A1002FP
1172-M20502X5
1150-1A10R0FP
1150-1B22R1FP
1150-1B47R5FP
1150-3A1821FP
1150-4A2742FP
1150-3A4751FP
1150-4A2262FP
1150-5A2213FP
1150-3A3741FP
1150-2A3320FP
1150-3A3921FP
TL1
COUPLER, DIRECT., 5 TURN,1.00"
1227-C5T10484
EMI,
EMI,
EMI,
EMI,
Part No.
Pi/5500PF,8-32UNC
Pi/5500PF,8-32UNC
Pi/5500PF,8-32UNC
Pi/5500PF,8-32UNC
1302-P552D10D
1302-P552D10D
1302-P552D10D
1302-P552D10D
DANIELS
DE ELECTRONICS
5-2
VT-3A130 Amplifier Instruction Manual
Ref
Design
Description
Part No.
U1
U2
U3
U4
U5
U6
AMP, RF,M68721,10W,118-137 MHz
IC, LM386 LV AUDIO AMP.,SO-8
IC, LM2588,REG./ADJ,FLBK,T0263
IC, MC33172 DUAL OP AMP, SO-8
IC, LM1084IT,REG./ADJ,5A,T0220
IC, MC33172 DUAL OP AMP, SO-8
2256-M6872100
2323-386M1N08
2305-25880263
2302-33172N08
2205-10842203
2302-33172N08
XFMR1
TRANSFMR,RF/WB,.075-90MHz,1:16
1288-50B160D0
DANIELS
DE ELECTRONICS
VT-3A130 Amplifier Instruction Manual
5-3
5.2
VT-3A130 Lowpass Filter Electrical Parts List
Ref
Desig
Description
C1
C2
C3, C4
C5
C6
CAP.,
CAP.,
CAP.,
CAP.,
CAP.,
15pF PORCEL.,+-5%500V
7.5pF PORCEL.,+-.25pF
30pF PORCEL., 5%,500V
4.7pF PORCEL.,+-.25pF
24pF PORCEL., 5%,500V
1036-1B2150J5
1036-0B2759C5
1036-1B2300J5
1036-0B2479C5
1036-1B2240J5
PCB
PCB, LPF,TX AMP,AM VT-3A130-10
4322-16500861
L1
L2
L3
COIL, 3 TURNS,18AWG,6.35 mm ID
COIL, 4 TURNS,18ANG,6.35 mm ID
COIL, 3 TURNS,18AWG,6.35 mm ID
1220-3T001622
1220-4T001622
1220-3T001622
5.3
SM,
SM,
SM,
SM,
SM,
Part No.
VT-3A130 Amplifier Mechanical Parts List
Ref
Description
Part No.
Qty.
CABLE, COAX, RG316, TFE, WHITE, 6.1cm
7405-RG316000
CASE, MT-3 VHF/UHF AMPLIFIER
3702-66102130
CAP SCREW,8-32x1/4,HX BUT-9/64
CAP SCREW, M3x8 HEX SOCK-M2.5
5806-832BH04S
5816-3M0SH08S
for U1
INSULATOR, THERM. COND.,TO-220
5622-1T220701
for U5
LID, CASE, MT-3 AMPLIFIER,ALUM
3702-66102151
SCREW,
SCREW,
SCREW,
SCREW,
5812-2M0PP06S
5812-2M5PP06S
5812-3M0FP06S
5812-3M0PP08S
SET SCREW, M3x3, HEX SOCKET,A2
5817-3M0AC03S
SHOULDER WASHER, M3,.24"OD,NYL
5674-120N2440
TURRET TERMINAL, 4-40,.188L,Tn
5053-144M188T
WIRE, PVC/STRAND., 22AWG,BLACK, 11.5cm
WIRE, PVC/STRAND., 22AWG, RED, 10cm
WIRE, PVC/STRAND., 22AWG, ORG., 10cm
WIRE, PVC/STRAND.,22AWG,YELLOW, 10.5cm
WIRE, PVC/STRAND., 22AWG, BLUE, 10.5cm
7110-22S07300
7110-22S07300
7110-22S07303
7110-22S07304
7110-22S07306
M2 X 6, PAN/PHILLIPS,A2
M2.5 X 6, PAN/PHIL., A2
M3 X 6, FLAT/PHIL., A2
M3 x 8, PAN/PHIL, A2
LPF I/P to PA O/P
LPF to case
connector to case
PCB to case,
for U5
ground
13.8V power
9.5V power
modulation I/P
enable
DANIELS
DE ELECTRONICS
5-4
VT-3A130 Amplifier Instruction Manual
6
REVISION HISTORY
ISSUE DATE
DESCRIPTION AND (REASON)
May 97
• First Issue.
Mar 98
• To improve the performance at -40˚C. ECO #546.
C35 was 2.2µF now not installed.
R19 was 274R now not installed.
R20 was 274R now not installed.
R21 was 18R2 now 0R00.
PCB was 50048-01 now 50048-02.
Mar 98
• Updated the PCB to make it easier to assemble. ECO #551.
PCB was 50048-02 now 50048-03.
Mar 00
• Corrected the instruction manual part number on the title page.
Part number was IM20-VT3A130AMP now IM22-VT3A130AMP
• The Amplifier is now capable of working over the whole AM Frequency
band (118 – 138 MHz) without being re-tuned.
DANIELS
DE ELECTRONICS
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This Page Intentionally Left Blank
DANIELS
DE ELECTRONICS
6-2
VT-3A130 VHF Amplifier Instruction Manual

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Modify Date                     : 2000:04:06 12:03:45-07:00
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