TPL Communications 3-2BH-AIR RF Power Amplifier User Manual Manual

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Document ID	660915
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Document Description	Users Manual 1
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Document Type	User Manual
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Date Submitted	2006-05-22 00:00:00
Date Available	2006-05-18 00:00:00
Creation Date	2006-04-10 10:57:35
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Document Title	Manual.pdf
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Document Author:	choque

7171
COMMUNICATIONS
Employee Owned Company
USER
MANUAL
AIR BAND SERIES
RADIO FREQUENCY
LINEAR POWER AMPLIFIERS
3370 SAN FERNANDO RD., #206
LOS ANGELES, CA 90065
TEL: (323) 256-3000 FAX: (323) 254-3210
www.tp|com.com
TABLE OF CONTENTS
PRODUCT DESCRIPTION ................................................................................................ 2
GENERAL SPECIFICATIONS ............................................................................................ 3
OPERATING PRECAUTIONS ............................................................................................ 4
INSTALLATION .................................................................................................................. 4
SYSTEM DESCRIPTION ................................................................................................... 5
MAINTENANCE ................................................................................................................. 5
METERING AND TEST POINT ........................................................................................... 8
REMOTE MONITORING ..................................................................................................... 9
OPERATORADJUSTMENTS ............................................................................................ 11
WARRANTY ....................................................................................................................... 13
Page 1
PRODUCT DESCRIPTION
The HMS series of TPL power amplifiers are intended for use in base station or repeater applications,
They are all high power units and in various configurations will cover the frequency range extending form
Low Band VHF to 960 MHz.
This manual covers a special version which uses two HMS amplifiers and a controller assembly for use
in an aircraft ground to air control system. It is characterized by very high power capability and very high
linearity for use with AM exciters. It is packaged in a 60" rack with additional space for customer supplied
exciter and control assemblies. The amplifier portion of the transmitter consists of three 10.5 inch high
asemblies. Two of these (when so specified) are power amplifiers producing 250 watts of carrier power
each. They are coupled together to provide carrier power of 500 watts, which is equivalent to 2000 watts
of peak power at 100% modulationAn alternative version may be specified, with a single amplifier
assembly to provide a system with 1000 watts peak power capability Other versions may be used in PM
applications at various power levels.
The third assembly is called the Amplifier Controller. It provides for combining, metering, and monitoring
of the RF power amplifier. It's major components are the transmiUreceive relays, low voltage power
supply, splitter and combiner modules, and metering and monitoring circuits. All three assemblies are
designed to be installed in a nineteen inch rack with associated interconnect cables.
Page 2
GENERAL SPECIFICATIONS
FREQUENCY RANGE: 118-136 MHZ.
OPERATING MODE: AM. Linear
MODEL POWER NOMINAL
IN PUT POWER
OUTPUT
PAS-QBG-AIR 10-20 W Carrier 250 W Carrier,1000 W. PEP
PA32BH-AIR 10-20 W Carrier 500 W Carrier, 2000 W. PEP
Distortion: 5% max at 60% modulation. 10% max at 90% modulation
TIR Relay: Controlled by PTT
OPERATING TEMPERATURE RANGE: 0° + 40° Celsius.
OPERATING VOLTAGE: 220 VAC
DUTY CYCLE: 50%
RECEIVER INSERTION L055: .3 dB maximum
HARMONIC ATTENUATION: Meets FCC Type Acceptance requirements.
FUSING: 15 amperes Circuit Breaker. Separate fusing in each sub-assembly.
SWR: Full rated power output at 1.5:1; 50% output min. At 2:1 or more Proportional power reduction at
VSWR above 3:1.
REMOTE MONITORING: PTT, Forward Power analog, Reverse power analog. System Fault. and
several other signals are available in the Monitor Connector.
Options: TPL power amplifiers are available in several options and configurations, when specified at the
time of order.
NOTE: This amplifier has been factory-tuned to the frequency specified at the time of order and will
operate within 1 2MHz of that frequency. For operation at any other frequency, see the Tune Up instruc—
tions section.
BASE STATION CONFIGURATION: Supplied with a COR.
REMOTE MONITOR CONNECTOR OPTION: A monitor and control connector for access to the
transmit control signal (PTT). test points and alarms is provided with the system,
Page 3
CAUTION!
Check the amplifier upon receipt for visible damage. lfany damage is noticed, please call TPL at (800)
HI - POWER to request a RMA number (Return Material Authorization). If purchased through a dealer,
ask them to follow this procedure for best results,
EXPENSIVE COMPONENTS MAY BE DESTROYED IF THE AMPLIFIER IS TURNED ON IN A
DAMAGE CONDITION.
OPERATING PRECAUTIONS
CAUTION: This amplifier produces RF voltage that can cause painful and dangerous RF burns. Use
caution! Connect and disconnect all RF connections with the DC power and drive power off.
DRIVE POWER: RF power transistors, although quite rugged in most respects, are easily damaged by
overdrive. Be carful not to overdrive this amplifier, even for an instant, Higher than rated drive power may
destroy the transistors and VOID ANY WARRANTY.
TERMINATIONS: The efficiency of this amplifier will degrade if it is operated into anything but a 50 Ohm
load. Lowered efficiency may mean any, or all. of the following; lower power output. increased current
drain, higher operating temperature, and reduced life.
INSTALLATION
This unit is mounted in a standard 19" rack cabinet. When picking a location for the rack, consideration
must be given to RF power output cable lengths, as well as cooling considerations.
Mount the unit where dust and other derbis are not likely to clog the cooling fins. Avoid mounting the
amplifier in a hot area that could artificially rais the amplifier‘s temperature.
Connect the radio transmitter to the “EXCITER” terminal and the antenna to the “ANTENNA" terminal on
the amplifier, with 50 Ohm coaxial cable and TYPE N plugs, Connect the receiver to the “RECEIVER"
terminal. The installer must assure that the transmit coaxial cable used is adequate to handle 500 Watts
avarage and 2000 Watts peak power.
Plug the AC line cord into the system AC power receptacle and extend the AC cable to a high capacity
220 VAC receptacle.
For safety. make sure the rack and all equipment connecting to the amplifier have properAC grounds.
Do not rely on coaxial cable shields for AC grounding.
Assure that the installation has proper lightning protection.
Page 4
SYSTEM DESCRIPTION
Refer to wiring Diagram 102154 for an overall functional view of the system The diagram shows the
four blocks which make up the system. These are AC Distribution, Controller, and two amplifiers,
Power Amp.A,, and PowerAmp. B.
The AC Distribution block provides three receptacles for the three main system assemblies. and one
for cabinet fans. Two additional ones are available for user installed equipment.
The major block labeled Controller shows the major parts of this assembly and their interconnections. A
detailed wiring diagram and schematic of this unit is shown on diagram 102150. The unit sends and
receives RF and control signals to and from the two amplifier units.
The two amplifiers are PA “A" and PA “B". For system purposes. the top unit is identified as “A" and the
lower one “B". although they are identical. An internal wiring diagram of the amplifiers is shown on
diagram 102152.
A rear side diagram of the system is shown on Figure 1. This may be referenced for correct cable
placement. and added RF cable locations.
MAINTENANCE
The amplifier requires no schedule maintenance. Maintenance should only be required in case ofa
major component failure. Block diagrams and schematics later in this manual will assist in identifiying
replaceable subassemblies.
Control Unit Maintenance: The Amplifier Controller has several replaceable modules which may be
identified by reference to Block Diagrams 102154 and 102150 later in the manual, Should any fault
occur, replacement parts may be obtained from the manufacturer.
Page 5
JCZA
W1AP1
AC IN
W1AP2
MONITOR
W1EP3
AC IN
JOE B
W1BPI
AC IN
AMPLIFIER "A"
CONTROLLER 0
Jcs
EXCITER
JCZ
AMPLIFIER " B"
FIGURE 1
REAR SIDE WITH CABLES
Page 6
JC4
O)
JC1A
Jcs
JO 9
JcaO
Jcso
ANTENNA
RECEIVER

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