User Manual
Table Of Contents
- 1GENERAL
- 1.1Introduction
- 1.2Performance Specification
- 2THEORY OF OPERATION
- 2.1Amplifier Operation
- 2.2Power Requirements
- 2.3RF Circuitry
- 2.3.1VT-3/150 Lowpass Filter
- 2.4Power Control Circuitry
- 2.5Power Sensing Circuitry
- 2.5.1Output Power Sense
- 2.5.2VSWR Sense
- 2.5.3VSWR Overload
- 3VT-3/150 AMPLIFIER ALIGNMENT
- 3.1General
- 3.2Repair Note
- 3.3Recommended Test Equipment List
- 3.4Printed Circuitboard Numbering Convention
- 3.5Standard Factory Settings and Jumper Configuration
- 3.6VT-3/150 AmplifierAlignment
- 3.6.1General
- 3.6.2VT-3/150 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
- 4.1VT-3/150 VHF Amplifier Component Layout
- 4.2VT-3/150 VHF Amplifier Schematic Diagram
- 4.3VT-3/150 VHF Lowpass Filter Component Layout
- 4.4VT-3/150 VHF Lowpass Filter Schematic Diagram
- 5PARTS LISTS
- 5.1VT-3/150 Amplifier Electrical Parts List
- 5.2VT-3/150 Low Pass Filter Electrical Parts List
- 5.3VT-3/150 Amplifier Mechanical Parts List
- 6REVISION HISTORY
DE
DANIELS
ELECTRONICS
5-4
VHF Amplifier Instruction Manual VT-3 132 - 174 MHz
4
Description Part No. Qty.
SCREW,
M3 X 8,
CAP
SOCK-M2.5,
S/S
5812-3M0SA08S 3
SCREW,
M3 X 8,
CAP
SOCK-M2.5,
S/S
5812-3M0SA08S 2
SET
SCREW,
M3 X 3, HEX
SOCKET,
A2 5817-3M0AC03S 1
SHOULDER WASHER, M3 0.24" OD, NYLON 5674-120N2440 1
TUBING,
TFE-260C,
22AWG,Thin 5mm 7610-260C22TW 1
TURRET TERMINAL, 4-40
0.188L,
Tn 5053-144M188T 1
WIRE, PVC/STRANDED 16AWG, RED, 70 mm 7110-16S26302 1