Z3-48HD+
T.M. No. 888-2621-001
© Copyright Harris Corporation 2007
All rights reserved
TECHNICAL MANUAL
888-2621-001
Z3-48HD+
Rev. A1: Dec., 2007
ii 888-2621-001 12/5/07
WARNING: Disconnect primary power prior to servicing.
Returns And Exchanges
Damaged or undamaged equipment should not be returned unless written approval
and a Return Authorization is received from HARRIS Broadcast Communications
Division. Special shipping instructions and coding will be provided to assure proper
handling. Complete details regarding circumstances and reasons for return are to be
included in the request for return. Custom equipment or special order equipment is
not returnable. In those instances where return or exchange of equipment is at the
request of the customer, or convenience of the customer, a restocking fee will be
charged. All returns will be sent freight prepaid and properly insured by the
customer. When communicating with HARRIS Broadcast Communications
Division, specify the HARRIS Order Number or Invoice Number.
Unpacking
Carefully unpack the equipment and preform a visual inspection to determine that
no apparent damage was incurred during shipment. Retain the shipping materials
until it has been determined that all received equipment is not damaged. Locate and
retain all PACKING CHECK LISTs. Use the PACKING CHECK LIST to help
locate and identify any components or assemblies which are removed for shipping
and must be reinstalled. Also remove any shipping supports, straps, and packing
materials prior to initial turn on.
Technical Assistance
HARRIS Technical and Troubleshooting assistance is available from HARRIS
Field Service during normal business hours (8:00 AM - 5:00 PM Central Time).
Emergency service is available 24 hours a day. Telephone 217/222-8200 to contact
the Field Service Department or address correspondence to Field Service
Department, HARRIS Broadcast Communications Division, P.O. Box 4290,
Quincy, Illinois 62305-4290, USA. Technical Support by e-mail:
[email protected]m. The HARRIS factory may also be contacted through a FAX
facility (217/221-7096).
Replaceable Parts Service
Replacement parts are available 24 hours a day, seven days a week from the
HARRIS Service Parts Department. Telephone 217/222-8200 to contact the service
parts department or address correspondence to Service Parts Department, HARRIS
CORPORATION, Broadcast Systems Division, P.O. Box 4290, Quincy, Illinois
62305-4290, USA. The HARRIS factory may also be contacted through a FAX
facility (217/221-7096).
NOTE:
The # symbol used in the parts list means used with (e.g. #C001 = used with C001).
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Manual Revision History
Z3-48HD+ Technical Manual
REV. DATE ECN Pages Affected
A Nov., 2007 Entire Manual
A1 Dec., 2007 Minor changes in Manual
MRH-2 888-2621-001 12/5/07
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12/5/07 888-2621-001 v
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Guide to Using Harris Parts List Information
The Harris Replaceable Parts List Index portrays a tree structure with the major items being leftmost in the index. The
example below shows the Transmitter as the highest item in the tree structure. If you were to look at the bill of materials
table for the Transmitter you would find the Control Cabinet, the PA Cabinet, and the Output Cabinet. In the Replaceable
Parts List Index the Control Cabinet, PA Cabinet, and Output Cabinet show up one indentation level below the Transmitter
and implies that they are used in the Transmitter. The Controller Board is indented one level below the Control Cabinet so
it will show up in the bill of material for the Control Cabinet. The tree structure of this same index is shown to the right of
the table and shows indentation level versus tree structure level.
Example of Replaceable Parts List Index and equivalent tree structure:
Replaceable Parts List Index Part Number Page
Table 7-1. Transmitter 994 9283 001 7-2
Table 7-2. Control Cabinet 992 9244 002 7-3
Table 7-3. Controller Board 992 8344 002 7-6
Table 7-4. PA Cabinet 992 9400 002 7-7
Table 7-5. PA Amplifier 994 7894 002 7-9
Table 7-6. PA Amplifier Board 992 7904 002 7-10
Table 7-7. Output Cabinet 992 9450 001 7-12
The part number of the item is shown to the right of the description as is the page in the manual where the bill for that part
number starts. Inside the actual tables, four main headings are used:
• Table #-#. ITEM NAME - HARRIS PART NUMBER - this line gives the information that corresponds to the
• Replaceable Parts List Index entry;
• HARRIS P/N column gives the ten DIGIT Harris part number (usually in ascending order);
• DESCRIPTION column gives a 25 character or less description of the part number;
• REF. SYMBOLS/EXPLANATIONS column 1) gives the reference designators for the item (i.e., C001, R102,
etc.) that corresponds to the number found in the schematics (C001 in a bill of material is equivalent to C1 on the
schematic) or 2) gives added information or further explanation (i.e., “Used for 208V operation only,” or “Used
for HT 10LS only,” etc.).
Inside the individual tables some standard conventions are used:
• A # symbol in front of a component such as #C001 under the REF. SYMBOLS/EXPLANATIONS column
means that this item is used on or with C001 and is not the actual part number for C001.
• In the ten digit part numbers, if the last three numbers are 000, the item is a part that Harris has purchased and has
not manufactured or modified. If the last three numbers are other than 000, the item is either manufactured by
Harris or is purchased from a vendor and modified for use in the Harris product.
• The first three digits of the ten DIGIT part number tell which family the part number belongs to - for example, all
electrolytic (can) capacitors will be in the same family (524 xxxx 000). If an electrolytic (can) capacitor is found
to have a 9xx xxxx xxx part number (a number outside of the normal family of numbers), it has probably been
modified in some manner at the Harris factory and will therefore show up farther down into the individual parts
list (because each table is normally sorted in ascending order). Most Harris made or modified assemblies will
have 9xx xxxx xxx numbers associated with them.
The term “SEE HIGHER LEVEL BILL” in the description column implies that the reference designated part number will
show up in a bill that is higher in the tree structure. This is often the case for components that may be
frequency determinant or voltage determinant and are called out in a higher level bill structure that is more
customer dependent than the bill at a lower level.
Transmitter
994 9283 001
Control Cabinet
992 9244 002
Controller Board
992 8344 002
PA Cabinet
992 9400 002
PA Amplifier
992 7894 002
PA Amplifier Board
992 7904 002
Output Cabine
t
992 9450 001
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12/5/07 888-2621-001 vii
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viii 888-2621-001 12/5/07
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!
WARNING:
THE CURRENTS AND VOLTAGES IN THIS EQUIPMENT ARE DANGEROUS. PERSON-
NEL MUST AT ALL TIMES OBSERVE SAFETY WARNINGS, INSTRUCTIONS AND REG-
ULATIONS.
This manual is intended as a general guide for trained and qualified personnel who are aware of the
dangers inherent in handling potentially hazardous electrical/electronic circuits. It is not intended to
contain a complete statement of all safety precautions which should be observed by personnel in
using this or other electronic equipment.
The installation, operation, maintenance and service of this equipment involves risks both to
personnel and equipment, and must be performed only by qualified personnel exercising due care.
HARRIS CORPORATION shall not be responsible for injury or damage resulting from improper
procedures or from the use of improperly trained or inexperienced personnel performing such tasks.
During installation and operation of this equipment, local building codes and fire protection
standards must be observed.
The following National Fire Protection Association (NFPA) standards are recommended as reference:
- Automatic Fire Detectors, No. 72E
- Installation, Maintenance, and Use of Portable Fire Extinguishers, No. 10
- Halogenated Fire Extinguishing Agent Systems, No. 12A
!
WARNING:
ALWAYS DISCONNECT POWER BEFORE OPENING COVERS, DOORS, ENCLO-
SURES, GATES, PANELS OR SHIELDS. ALWAYS USE GROUNDING STICKS AND
SHORT OUT HIGH VOLTAGE POINTS BEFORE SERVICING. NEVER MAKE INTERNAL
ADJUSTMENTS, PERFORM MAINTENANCE OR SERVICE WHEN ALONE OR WHEN
FATIGUED.
Do not remove, short-circuit or tamper with interlock switches on access covers, doors, enclosures,
gates, panels or shields. Keep away from live circuits, know your equipment and don’t take chances.
!
WARNING:
IN CASE OF EMERGENCY ENSURE THAT POWER HAS BEEN DISCONNECTED.
!
WARNING:
IF OIL FILLED OR ELECTROLYTIC CAPACITORS ARE UTILIZED IN YOUR EQUIP-
MENT, AND IF A LEAK OR BULGE IS APPARENT ON THE CAPACITOR CASE WHEN
THE UNIT IS OPENED FOR SERVICE OR MAINTENANCE, ALLOW THE UNIT TO COOL
DOWN BEFORE ATTEMPTING TO REMOVE THE DEFECTIVE CAPACITOR. DO NOT
ATTEMPT TO SERVICE A DEFECTIVE CAPACITOR WHILE IT IS HOT DUE TO THE
POSSIBILITY OF A CASE RUPTURE AND SUBSEQUENT INJURY.
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FIRST-AID
Personnel engaged in the installation, operation, maintenance or servicing of this equipment
are urged to become familiar with first-aid theory and practices. The following information is
not intended to be complete first-aid procedures, it is a brief and is only to be used as a
reference. It is the duty of all personnel using the equipment to be prepared to give adequate
Emergency First Aid and there by prevent avoidable loss of life.
Treatment of Electrical Burns
1. Extensive burned and broken skin
a. Cover area with clean sheet or cloth. (Cleanest available cloth
article.)
b. Do not break blisters, remove tissue, remove adhered particles of
clothing, or apply any salve or ointment.
c. Treat victim for shock as required.
d. Arrange transportation to a hospital as quickly as possible.
e. If arms or legs are affected keep them elevated.
NOTE:
If medical help will not be available within an hour and the victim is conscious and
not vomiting, give him a weak solution of salt and soda: 1 level teaspoonful of salt
and 1/2 level teaspoonful of baking soda to each quart of water (neither hot or
cold). Allow victim to sip slowly about 4 ounces (a half of glass) over a period of
15 minutes. Discontinue fluid if vomiting occurs. (Do not give alcohol.)
2. Less severe burns - (1st & 2nd degree)
a. Apply cool (not ice cold) compresses using the cleanest available
cloth article.
b. Do not break blisters, remove tissue, remove adhered particles of
clothing, or apply salve or ointment.
c. Apply clean dry dressing if necessary.
d. Treat victim for shock as required.
e. Arrange transportation to a hospital as quickly as possible.
f. If arms or legs are affected keep them elevated.
REFERENCE:
ILLINOIS HEART ASSOCIATION
AMERICAN RED CROSS STANDARD FIRST AID AND PERSONAL SAFETY
MANUAL (SECOND EDITION)
888-2621-001 1
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Table of Contents
Section I
Operator Guide
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Installation Instruction. . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Returns And Exchanges . . . . . . . . . . . . . . . . . . . . . .1-3
Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Transmitter Operation . . . . . . . . . . . . . . . . . . . . . . . . .1-5
RF Metering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Control Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Remote Control. . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
Interlock Considerations. . . . . . . . . . . . . . . . . . . . .1-10
Drive Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
HDx-FM Exciter/BoostPro Control . . . . . . . . . . . . 1-12
Alignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13
Section II
Parts List
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
2 888-2508-001
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Table of Contents
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Section I
Operator Guide
1
1.1 Introduction
This manual is to provide information regarding the Z3-48HD+ Transmitter System’s
operation. In addition to the System Controllers, other System-specific functions are
discussed. Any further site-specific functionallity will be discussed in the site-specific
data packages provided with the Z3-48HD+ Transmitter System, including the
individual Z16HD+ transmitter manuals.
The Z3-48HD+ System is made of a ZD32HD+ dual transmitter and one additional
Z16HD+ transmitter cabinet. The ZD32HD+ is made of two Z16HD+ transmitter
cabinets. Most everything in the ZD32HD+ remains as the instruction book and
drawings describe except for the Drive. There are two System Controllers in the Z3-48
system. One System Controller controls and monitors only the ZD32 (transmitters A
and B). The second System Controller controls and monitors the Z3-48 which includes
the Z16 and the ZD32.
NOTE:
It is important to have and study all documentation of all units involved in a Z3-
48HD+ system prior to begining installation of this complex system.
The ZD32 consists of the two cabinets on the right hand side of the system. These are
known as transmitters A and B to keep the ZD32 documentation consistent with that of
the Z3-48 system. The extra cabinet required to make up the Z3-48 system will be on
the left and be known as transmitter C. This arrangement also keeps the RF line and
combiner arrangement to a minimum for those sites that may require equipment to go in
a small space. Both of the System Controllers will be located in a separate rack next to
the system if dual exciters and Boost amps are required. Space for the System
Controllers is not available in the transmitter for this configuration.
Operation of the Z3-48HD+ in any of several modulation format modes can be
accomplished from the FlexStar HDx-FM exciter GUI panel. See exciter manual for
further details. HD modes are only available with the FMHD22 version of the
FlexStar
TM
Exciter.
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Section I Operator Guide
Z3-48HD+
There are several methods of combining the analog (FM) and digital (HD) RF to create
an IBOC signal - also known as Modulation Format - that may be used in a typical
IBOC system including a backup mode. The four modes of operation are:
FM - Analog RF only; this could be the analog backup mode in the event of a
digital failure.
FM+HD - Analog & digital (at -20dB) RF, also known as Common Combin-
ing.
HD - Digital RF only, used for Separate Combining, such as 10dB combined,
dual-feed and interleaved antenna, and dual antennas.
SLC - Analog & digital (at various ratios) RF, also known as Split-level or
Mid-level Combining.
Transmitter operation can be initiated or terminated as desired by depressing the ON
HI, ON LOW, or OFF push-buttons. All three transmitters will be commanded into the
selected mode when the Z3-48 System Controller switch is depressed.
The System Controllers also provide the necessary RF metering, common external
transmitter interlock and transmitter interface, and combined transmitter remote control
functions. APC function is retained by the individual transmitters and its RF source.
• System Controller P/N 992-8850-005
• System Control Board
• Assembly # 992-8853-001
• PWB # 843-5293-076
• Schematic # 839-8118-181
• Display Board
• Assembly # 992-8388-005
• PWB # 843-5215-004
• Schematic # 839-8025-004
NOTE:
Parts list is in Section II.
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Section I Operator Guide
Z3-48HD+
1.2 Installation Instruction
1.2.1 Returns And Exchanges
Damaged or undamaged equipment should not be returned unless a Return
Authorization is issued. When communicating with Harris Corporation, Broadcast
Division, specify the order number or invoice number. Include complete details
regarding circumstances and reasons for return in the request. Custom or special order
equipment is not returnable. In instances where return or exchange of equipment is at
the request or convenience of the customer, a restocking fee will be charged. Special
shipping instructions and coding will be provided to insure proper handling. All returns
will be sent freight prepaid and properly insured by the customer.
1.2.2 Unpacking
Carefully unpack the transmitter and save all packing material. Inspect thoroughly for
any damage incurred in shipment. Retain all PACKING CHECK LISTS to help locate
and identify any components or assemblies removed for shipping. Remove any
shipping supports, and straps prior to initial turn on.
Before cabinet placement takes place, it is important to determine which cabinet is
transmitter C (left side as viewed from the front), transmitter A (middle), and
transmitter B (right side). This can be determined by looking at the tags on the front of
the transmitter or matching serial numbers of the cabinet to the provided test data. The
serial numbers of the cabinets can be found on the left side wall inside the module
compartment. A typical system will have the FlexStar HDx-FM Exciter(s) in the left
cabinet.
1.2.3 Installation
NOTE:
It is important to have and study all documentation of all units involved in a Z3-
48HD+ system prior to begining installation of this comlex system.
The cabinets may be mounted together using four Cabinet Brackets and hardware
provided with the system. The Cabinet Brackets mount between the transmitters on top
using the 3/8" hardware into threads found near the front and back of any two cabinets.
1/2" hardware is provided to bolt two cabinets together near the bottom. These holes
may be accessed inside the power supply compartments of all three cabinets. The
supply may need to be pushed forward a few inches in order to gain access to the back
hole.
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Section I Operator Guide
Z3-48HD+
Several cables will be secured inside the cabinets that need routed to the other cabinets
A hole located in each cabinet is provided for cable routing between cabinets. If a hole
cap is still in place, remove cap from both cabinets for interconnecting cables. Refer to
the wiring diagrams in the System Drawing Package for wire destinations. Each wire
will be marked with a wire or cable number located near the end of each wire. After
routing, cables may be permanently attached to other existing cabling. Keep in mind
some units are mounted on slides and cables are long enough to slide out with the unit
for continuous operation.
The exciter interconnect consists of various cables. Not all of these cables are necessary
in some applications. Depending on how many exciters and what type of IBOC system,
some cables may not be needed. See drawings in the Z16 manual drawing package for
further information.
The combiners and loads are usually placed where specified by the layout diagram in
the System Drawing Package. Placement of Directional Coupler assemblies are also
specified by the layout diagram. A provided coax cable should be connected between
the System Controllers and three coupler ports each; the forward power, reflected
power, and the reject load forward power.
The reject load’s (if provided) interlock cables should be connected. Connections for
addition station interlocks may be provided depending on the configuration of the
system. Refer to the System Drawing Package for further information.
AC connections for the transmitters are located near the top in the back left side of each
cabinet. See the Z16 manual for further information. One AC connection must be made
for the Z3-48HD+ exciter(s). This TB7 terminal block is located inside the AC input
compartment of transmitter cabinet C. This input should be on a separate AC feed in
case this transmitter’s breaker is off, the exciters can operate the remaining operating
transmitters at a reduced power level. Another AC feed must be connected to the
controller rack (if provided) or each piece of equipment if a rack is not provided. This
AC feed should again be on a separate AC feed from the transmitter in case one
transmitter breaker is off. Each Harris-made piece of equipment to be placed in an
existing rack can be operated at 120 or 240 VAC depending on the AC input card
position.
Connect transmission line between the transmitters and the combiners per the layout
supplied in the System Drawing Package. Any unequal change to the transmission line
length from transmitter to combiner will have to be adjusted for in the drive circuit.
Combiner input phasing is important for proper operation. Confirm the ports of the
4.77dB hybrid are aligned according to the markings on the combiner. This combiner is
not symmetrical so it must be connected properly. Also connect transmission line to the
reject loads. Placement of the loads and length of line to the loads is not critical. Only
transmission line for the typical layout is supplied with the system unless otherwise
specified with the order.
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Section I Operator Guide
Z3-48HD+
1.3 Transmitter Operation
a. Ensure all RF connections are tight, and that all control and AC service (mains)
connections are correct and secure using the correct voltage and frequency set-
tings.
b. Set the REMOTE/DISABLE switches on all transmitters to the REMOTE posi-
tion.
c. Start transmitter A (middle cabinet) by depressing the ON HI pushbutton on the
transmitter cabinet A. Operate transmitter at or near 100%. The ZD32 System
Controller FWD PWR should read near 25%. Press LOWER button until trans-
mitter cabinet A FWD PWR is near 20%. Turn off transmitter cabinet A by
depressing the OFF pushbutton.
d. Start transmitter B (right side) by depressing the ON HI pushbutton on the trans-
mitter cabinet B. Operate transmitter at or near 100%. The ZD32 System Control-
ler FWD PWR should again read near 25%. Press LOWER button until
transmitter cabinet B FWD PWR is 20%. Turn off transmitter cabinet B by
depressing the OFF pushbutton.
e. Start transmitter C (left side) by depressing the ON HI pushbutton on the trans-
mitter cabinet C. Operate transmitter at or near 100%. The Z3-48 System Con-
troller FWD PWR should read near 22%. Press LOWER button until transmitter
cabinet C FWD PWR is 20%. Turn off transmitter cabinet C by depressing the
OFF pushbutton.
f. Start combined transmitter operation by depressing the ON HI pushbutton switch
on the ZD32 System Controller. Both A & B transmitters should begin operation
and be producing RF power.
g. The ZD32 System Controller FWD PWR meter should be reading near 20%.
Select the REJ PWR meter position on the ZD32 System Controller and verify its
reading is near 0%. If this reading is more than 2-3%, this may be the result of
either amplitude or phase mismatch between the two combiner inputs. Adjust the
power level 2-3% out of just one transmitter, A or B. If this minimizes the reject
power to near zero, continue on to the next step. If power from each transmitter is
back to the same and more than 10% reject power exists, a phase mismatch may
be adjusted by changing the physical length of W901A or W901B in the drive
circuit. Some experimentation will be required. Add or remove BNC elbow adap-
tors or a very short length of cable (2-6 inches) to one or the other existing cables
at the drive splitter SP2 outputs located in cabinet A (middle). Any reject power
may be the result of a different connection from what was originally used at the
Harris test facility. Additionally, some phase adjustment can be accomplished on
the BoostPro GUI screen. See the BoostPro documentation for more details. Usu-
ally, no adjustment of amplitude or phase will be necessary.
h. Start the third cabinet C by depressing the ON HI pushbutton on the Z3-48 Sys-
tem Controller. All three transmitters should be operating and producing power.
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Section I Operator Guide
Z3-48HD+
i. The Z3-48 System Controller FWD PWR meter should be reading near 20%.
Select the REJ PWR meter position on the Z3-48 system Controller and verify its
reading is near 0%. If this reading is more than 2-3%, this again may be the result
of either amplitude or phase mismatch between the two combiner inputs to the
4.77dB combiner. Adjust the power level 2-3% out of just transmitter C. If this
minimizes the reject power to near zero, continue on to the next step. If power
from each transmitter is back to the same or more than 10% reject power exists, a
phase mismatch may be adjusted by changing the physical length of W900 in the
drive circuit. Some experimentation will be required. Add or remove BNC elbow
adaptors or a very short length of cable (2-6 inches) to W900 at the transmitter C
Exciter Switch board output. Reject power may be the result of a different con-
nection from what was originally used at the Harris test facility. Usually, no
adjustment of amplitude of phase will be necessary.
j. Once reject power is down below 5% on both System Controllers, raise power in
all three transmitters to 100% watching that reject power does not exceed 10%. If
any reject power exists, repeat the above steps for adjustment of amplitude or
phase of all combiner inputs. Some fluctuation of power will be noticed due to
the type of detection used for an IBOC signal and its peaks.
k. Select the RFL PWR position on the transmitters and the System Controllers and
verify that they all read at or near 1.01VSWR.
l. Depress the LOW ON push-button switch on both System Controllers and verify
that all transmitter output levels drop to approximately 50% and that the System
Controllers also indicate near 50% in the FWD PWR positions.
1.3.1 RF Metering
Three metering functions are provided by each System Controller. They are: Forward
output power in percent of allowed forward power (FWD PWR); reflected power
displayed as load VSWR (RFL PWR); and combiner reject load power in percent of
normal (REJ PWR). Below are the approximate values of the normal average RF levels
for a Z3-48HD+ combined transmitter system calibrated at full output in the combined
mode. See Table 1-1.
Table 1-1 System Controller Average Power Metering
Indication
FWD PWR 100% RFL PWR 1.00 REJ PWR 100%
Z3-48 System Controller
FM+HD 21kW As Indicated 4.67kW
HD only 10.5kW As Indicated 2.33kW
FM only 30kW As Indicated 6.67kW
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Section I Operator Guide
Z3-48HD+
A REJ PWR reading of 100% will be one-fourth the total output power when the 3 dB
hybrid combiner is used, such as with the ZD32 System Controller. The REJ PWR
reading of 100% will be set for 2/3 the total output power from one transmitter when the
4.77dB hybrid combiner is used such as with the Z3-48 System Controller. Up to 2/3 of
the power from transmitter C or 1/3 of the power from the ZD32 could be present at the
4.77dB reject load. See Table 1-2 on page 1-8 for power results when one or two
transmitters are OFF. When a backup mode is used, consideration must be given to the
maximum power in the reject load allowed by the overload and the maximum power the
load is capable of. As a result of this consideration, some variations from the chart exist
and are noted in the Factory Test Data Sheet.
The following formula can be used for calculating expected power results at the antenna
port given different power level inputs as in the last two columns of Table 1-2:
where P1, P2, and P3 are the power levels from each transmitter.
Below is an Expected Power Results for Failure Conditions table.
ZD32 System Controller
FM+HD 14kW As Indicated 3.5kW
HD only 7kW As Indicated 1.75kW
FM only 20kW As Indicated 5kW
Table 1-1 System Controller Average Power Metering
P
out
P1 P2 P3++()
2
3
-----------------------------------------------------
=
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Section I Operator Guide
Z3-48HD+
Table 1-2 Expected Power Results for Failure Conditions
The System Controllers each display values of the selected functions on a 3-1/2” digit
panel meter. Three momentary pushbutton switches allow selection of the metering
mode for the System Controller. A momentary depression of one of the three meter
select switches will put the digital metering system into the desired mode. The meter
will remain in that selected mode until another metering selection pushbutton switch is
depressed. Following an AC power interruption the metering system will automatically
power on in the FWD PWR mode, displaying the forward output power level, in
percent of normal.
FM + HD
Power % Power % Power % Power % Power % Power % Power %
TX C 7kW 100 7kW 100 0 0 7kW 100 0 0 7kW 100 3.5kW 50
TX A 7kW 100 0 0 7kW 100 0 0 0 0 3.5kW 50 7kW 100
TX B 7kW 100 7kW 100 7kW 100 0 0 7kW 100 7kW 100 7kW 100
Z3-48 System
FWD 21kW 100 9.33kW 44 9.33kW 44 2.33kW 11 2.33kW 11 17.1kW 81 17.1kW 81
REJ 0 0 1.17kW 25 4.67kW 100 4.67kW 100 1.17kW 25 0.1kW 2 0.4kW 8
ZD32(A/B) System
FWD 14kW 100 3.5kW 25 14kW 100 0 0 3.5kW 25 10.2kW 72 14kW 100
REJ 0 0 3.5kW 100 00003.5kW 100 0.3kW 8 0 0
HD Only
Power % Power % Power % Power % Power % Power % Power %
TX C 3.5kW 100 3.5kW 100 0 0 3.5kW 100 0 0 3.5kW 100 1.75kW 50
TX A 3.5kW 100 0 0 3.5kW 100 0 0 0 0 1.75kW 50 3.5kW 100
TX B 3.5kW 100 3.5kW 100 3.5kW 100 0 0 3.5kW 100 3.5kW 100 3.5kW 100
Z3-48 System
FWD 10.5kW 100 4.67kW 44 4.67kW 44 1.17kW 11 1.67kW 11 8.55kW 81 8.54kW 81
REJ 0 0 0.58kW 25 2.33kW 100 2.33kW 100 0.58kW 25 0.05kW 2 0.2kW 8
ZD32(A/B) System
FWD 7kW 100 1.75kW 25 7kW 100 0 0 1.75kW 25 5.1kW 72 7kW 100
REJ 0 0 1.75kW 100 00001.75kW 100 0.15kW 8 0 0
FM Only
Power % Power % Power % Power % Power % Power % Power %
TX C 10kW 100 10kW 100 0 0 10kW 100 0 0 10kW 100 5kW 50
TX A 10kW 100 0 0 10kW 100 0 0 0 0 5kW 50 10kW 100
TX B 10kW 100 10kW 100 10kW 100 0 0 10kW 100 10kW 100 10kW 100
Z3-48 System
FWD 30kW 100 13.33kW 44 13.33kW 44 3.33kW 11 3.33kW 11 24.4kW 81 24.4kW 81
REJ 0 0 1.67kW 25 6.67kW 100 6.67kW 100 1.67kW 25 0.14kW 2 0.57kW 8
ZD32(A/B) System
FWD 20kW 100 5kW 25 20kW 100 0 0 5 25 14.57kW 72 20kW 100
REJ005kW100000051000.43kW 8 0 0
Two TX OFF One TX ½ Power One TX ½ Powe
r
Full Operation One TX OFF One TX OFF Two TX OFF
Full Operation One TX OFF One TX OFF Two TX OFF Two TX OFF One TX ½ Power One TX ½ Powe
r
Full Operation One TX OFF One TX OFF Two TX OFF Two TX OFF One TX ½ Power One TX ½ Powe
r
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