User Manual
Table Of Contents
- 1GENERAL
- 1.1Introduction
- 1.2Performance Specification
- 2THEORY OF OPERATION
- 2.1Amplifier Operation
- 2.2Power Requirements
- 2.3RF Circuitry
- 2.3.1UT-3/400 Lowpass Filter
- 2.4Power Control Circuitry
- 2.5Power Sensing Circuitry
- 2.5.1Output Power Sense
- 2.5.2VSWR Sense
- 2.5.3VSWR Overload
- 3UT-3/400 AMPLIFIER ALIGNMENT
- 3.1General
- 3.2Repair Note
- 3.3Recommended Test Equipment List
- 3.4Printed Circuitboard Numbering Convention
- 3.5Standard Factory Settings and Jumper Configuration
- 3.6UT-3/400 AmplifierAlignment
- 3.6.1General
- 3.6.2UT-3/400 Amplifier Adjustment
- 3.6.2.1General Set-Up
- 3.6.2.2Output Power Alarm (Forward Power)
- 3.6.2.3Output Power
- 3.6.2.4Antenna VSWR Alarm (Reverse Power)
- 3.6.2.5Antenna VSWR Overload
- 3.6.2.6Procedure Verification
- 4ILLUSTRATIONS AND SCHEMATIC DIAGRAMS
- 4.1UT-3/400 UHF Amplifier Component Layout
- 4.2UT-3/400 UHF Amplifier Schematic Diagram
- 4.3UT-3/400 UHF Lowpass Filter Component Layout
- 4.4UT-3/400 UHF Lowpass Filter Schematic Diagram
- 5PARTS LISTS
- 5.1UT-3 / UT4 UHF Amplifier Electrical Parts List
- 5.2UT-3/400 UHF Amplifier Mechanical Parts List
- 5.3UT-3/400 UHF Low Pass Filter Electrical Parts List
- 6REVISION HISTORY
DE
DANIELS
ELECTRONICS
5-2
UHF Amplifier Instruction Manual UT-3 406 - 512 MHz
Ref
Desig
Description
Part
No.
FB1* FERRITE BEAD, 64 MIX 3x3.5 mm OD 1210-64030350
FB2* FERRITE BEAD, 64 MIX 3x3.5 mm OD 1210-64030350
FIL1, 2
FILTER,
EMI
PI/5500pF,
8-32 UNC 1302-P552D10D
FIL3*
FILTER,
EMI
PI/5500pF,
8-32 UNC 1302-P552D10D
FIL4, 5
FILTER,
EMI
PI/5500pF,
8-32 UNC 1302-P552D10D
J1
CONN.,
SMB, JACK,2 HOLE FLANGE 5120-J2SC01BG
J2 CONNECTOR, N JACK PANEL MNT,
C/SNK
5184-10923011
L1-L4 INDUCTOR,
SM,
180nH 20%, 1812 1255-2GR1800M
L5 CHOKE
RF/MOLDED,
150nH 10%, 0.37 1251-2B00R15K
L6* INDUCTOR,
SM,
1.5µH
10%, 1812 1255-3G1R500K
L7* COIL, 0.75 TURN 16AWG, 4.0 mm ID $1220-0T751615
L8* CHOKE
RF/MOLDED,
150nH 10%, 0.25 1251-2A00R15K
L9*
COIL/RF,
5.0 TURN 18AWG, 0.18"ID $1220-5T001817
L10* COIL, 1 TURN 16AWG, 4.0 mm ID $1220-1T001617
L11, L12 INDUCTOR,
SM,
1.5µH
10%, 1812 1255-3G1R500K
Q1*
TRANSISTOR,
MRF641
470 MHz, 15W 2025-MRF64100
Q2 MOSFET, IRF9540 P-CHANNEL, TO-220 2044-IRF95400
Q3
MOSFET,
D5P06V P-CHANNEL, DPAK 2144-D5P06V00
Q4, Q5
TRANSISTOR,
BC817-25 NPN, SOT-23 2120-BC817025
Q6, Q7
TRANSISTOR,
PZT2222A NPN, SOT-223 2120-PZT2222A
R1
RES.,
SM,
12R1 1206, 1%, 100ppm 1150-1B12R1FP (UT-3 406-470 MHz)
R1
RES.,
SM,
ZERO OHM
JUMPER,1206
1150-0B0R0000 (UT-4 406-470 MHz)
R2,
R3
RES.,
SM,
422R 1206, 1%, 100ppm 1150-2B4220FP (UT-3 406-470 MHz)
R2,
R3 NOT INSTALLED NOT INSTALLED (UT-3 406-470 MHz)
R4
RES.,
SM,
49k9 1206, 1%, 100ppm 1150-4B4992FP
R5,
R6
RES.,
SM,
4k53 1206, 1%, 100ppm 1150-3B4531FP
R7
POT.,
SM,
50k 12 TURN, SIDE ADJUST 1172-M30503X5
R8
RES.,
SM,
27k4 1206, 1%, 100ppm 1150-4B2742FP
R9-R11
RES.,
SM,
10k0 1206, 1%, 100ppm 1150-4B1002FP
R12*
RES.,
SM,
49k9 1206, 1%, 100ppm 1150-4B4992FP
R13*
RES.,
SM,
22k6 1206, 1%, 100ppm 1150-4B2262FP
R14*
RES.,
SM,
49R9 1206, 1%, 100ppm 1150-1B49R9FP
R15*
RES.,
100R METAL
FILM,
5%, 2W 1105-2A0101JI
R16 UNUSED
REFERENCE
DESIGNATION
R17
RES.,
SM,
49R9 1206, 1%, 100ppm 1150-1B49R9FP
R18
RES.,
SM,
39k2 1206, 1%, 100ppm 1150-4B3922FP (0.5 - 2.0 Watts)
R18
RES.,
SM,
49k9 1206, 1%, 100ppm 1150-4B4992FP (2.0 - 8.0 Watts)
R19
RES.,
SM,
49k9 1206, 1%, 100ppm 1150-4B4992FP (0.5 - 2.0 Watts)
R19
RES.,
SM,
22k6 1206, 1%, 100ppm 1150-4B2262FP (2.0 - 8.0 Watts)
R20
RES.,
SM,
10k0 1206, 1%, 100ppm 1150-4B1002FP
R21
POT.,
SM,
50k 12 TURN, SIDE ADJUST 1172-M30503X5
R22,R23
RES.,
SM,
49k9 1206, 1%, 100ppm 1150-4B4992FP
R24,R25
RES.,
SM,
1k00 1206, 1%, 100ppm 1150-3B1001FP
R26
RES.,
SM,
49k9 1206, 1%, 100ppm 1150-4B4992FP
R27
RES.,
SM,
100k 1206, 1%, 100ppm 1150-5B1003FP
R28
RES.,
SM,
27k4 1206, 1%, 100ppm 1150-4B2742FP
R29
RES.,
SM,
10k0 1206, 1%, 100ppm 1150-4B1002FP