LESSON TOPIC 1.5
ELECTRONIC TEST EQUIPMENT MANAGEMENT
INTRODUCTION TO TEST EQUIPMENT
One of your primary duties as EMO is the management of the ship's metrology assets, i.e., test equipment. You will be responsible for all electrical and electronic Test and Monitoring Systems (TAMS) assigned to the command (except avionics). TAMS, also referred to as Test, Measuring, and Diagnostic Equipment (TMDE), include the equipment categories listed below.
ELECTRONIC TEST EQUIPMENT (ETE)
Electronic test equipment is used to check the electronic functions of other equipment. Each piece of electronic test equipment is classified as either general or special purpose:
General Purpose Electronic Test Equipment (GPETE)
GPETE includes electronic test equipment that has the ability, without modification, to test two or more prime equipments or systems of basically different designs.
Special Purpose Test Equipment (SPETE)
SPETE includes electronic test equipment that is specifically designed to test a single prime equipment or system.
ELECTRICAL TEST EQUIPMENT
Electrical test equipment is specifically designed for and primarily used to measure the current,
voltage, resistance, and frequency of electrical power distribution systems and equipment.
MECHANICAL TEST INSTRUMENT (MTI)
A mechanical test instrument is any device that is used to take pressure, temperature, flow, linear, torque, optical, weight, mass, and vibration measurements, and that indicates the results directly, in the units being measured.
BUILT-IN TEST EQUIPMENT (BITE)
Built-in test equipment includes all devices that are functionally separate from, but permanently
connected to, the prime system or equipment and that are used solely for testing that prime
system or equipment. This includes all devices that were permanently installed and originally provided to monitor or troubleshoot the prime system or equipment.
PORTABLE TEST EQUIPMENT (PTE)
Portable test equipment is not permanently connected to the prime equipment or system. It is used by organizational or intermediate level personnel to perform planned or corrective maintenance on shipboard prime systems or equipment. There are two categories of portable test equipment:
Portable Electrical/Electronic Test Equipment (PEETE)
PEETE includes GPETE, portable electrical test equipment, and items to support GPETE.
Portable Mechanical Test Instrument (PMTI)
PMTI includes any device that satisfies the definitions of PTE and MTI as previously mentioned.
Calibration standards are used to ensure the accuracy of measuring devices. Accuracy is ensured by periodically comparing the units of measure of the measuring devices (length, temperature, weight, voltage, etc.) to those of a standard of known or greater accuracy.
AUTOMATIC TEST EQUIPMENT (ATE)
Automatic test equipment is designed to analyze operational or static equipment parameters to determine if the performance of the equipment being tested is degraded and, if so, to what extent. This equipment may also be designed to isolate the causes of unit malfunctions. The decision- making, control, and evaluative functions of ATE are conducted with minimum reliance on human intervention.
BASIC TEST EQUIPMENT
Ammeter, Ohmmeter, and Voltmeter
The three basic types of electrical meters used to test electrical and electronic equipment and circuits are the ammeter, ohmmeter, and voltmeter. All of these, except their electronic versions,
use a basic analog meter movement to indicate measurements. The ammeter is used to measure current. It should always be placed in series with the circuit to be measured, in the highest range selectable, before connection to a circuit. The ohmmeter is used for resistance measurements and continuity checks to identify faulty components. An ohmmeter should never be used on an energized circuit. Doing so can destroy the ohmmeter. The voltmeter is used to read supply and bias voltages to troubleshoot electronic equipment.
During troubleshooting, a technicians are often required to measure voltage, current, and resistance. To eliminate the need to obtain three or more meters, technicians use multimeters. A multimeter contains a voltmeter, ammeter, and ohmmeter in one unit. Multimeters are of two
types, non-electronic and electronic. A common non-electronic multimeter is shown in Figure 1.5-1. This multimeter has an analog readout, requires no external power source, is highly portable, and requires no warmup period.
Figure 1.5-1 Non-Electronic Multimeter
A common electronic multimeter is shown in Figure 1.5-2. This multimeter has a digital LED (Light Emitting Diode) readout and is more accurate than a non-electronic multimeter because of its advanced electronic circuitry. Electronic multimeters may be powered by internal batteries or
by an external alternating current (AC) power source. Some electronic multimeters are quite small (e.g., 77AN and 77BN multimeters) and therefore pilferable. You may want to designate them as controlled equipage or as a part of tool issue.
Figure 1.5-2 Electronic Multimeter
Insulation Test Set (Megger)
A multimeter cannot test insulation quality because it cannot supply a high enough voltage. An insulation test set is used to measure the insulation quality of insulated cables or test the insulation of high voltage capacitors. The megger does this by applying a high voltage to the conductor and measuring the leakage of the associated current. Meggers are capable of measuring resistance of many megohms. A megger consists of a hand-driven direct current (DC) generator and an indicating meter, as shown in Figure 1.5-3.
Figure 1.5-3 Insulation Test Set (Megger)
AC/DC Differential Voltmeter
The differential voltmeter is a reliable precision voltmeter, used to compare an unknown voltage with an internal reference voltage and indicate the difference in their values. A commonly used differential voltmeter is shown in Figure 1.5-4. This meter is accurate enough for the precision work of a calibration laboratory, yet rugged enough for general shop work.
Figure 1.5-4 AC/DC Differential Voltmeter
The maintenance of electronic equipment often requires the technician to inject a standard AC voltage, at both audio and radio frequencies, into a circuit. Sources of this energy are called signal generators. Signal generators are used in testing and aligning radio transmitters, receivers, and amplifiers. They may also be used to troubleshoot various electronic devices and occasionally for measuring frequency. The frequency being measured determines which of the following signal generators is used: audio frequency (AF) generators, video signal generators, radio frequency (RF) generators, frequency modulated RF generators, and special
types which combine several frequency ranges. A diagram of an audio frequency and a radio frequency signal generator is shown in Figures 1.5-5a and 1.5-5b, respectively.
Figure 1.5-5a Signal Generator (Audio Frequency)
Figure 1.5-5b Signal Generator (Radio Frequency)
Frequency counters are used to measure frequency. Frequency measurements for radio equipment are made during tuning/alignment and preventive and corrective maintenance procedures. The type of counter selected depends on the frequency to be measured and required accuracy. Frequency measuring devices, particularly those used to determine radio frequencies, make up a distinct class of test equipment because of the critical nature of such measurements. Precise calibration is extremely important. To provide accurate measurements, every type of frequency counter must be calibrated against a frequency standard. A common frequency counter is shown in Figure 1.5-6.
Figure 1.5-6 Frequency Counter
A frequency standard, while not a piece of test equipment per se, is used to provide a stable frequency reference for test equipment calibration and for communications equipment operation. Frequency standards are divided into two general categories, primary and secondary. The primary frequency standard is maintained by the U.S. Bureau of Standards. It has long term stability and accuracy, determined by a comparison with a standard interval of time. A secondary frequency standard is a highly stable and accurate standard that has been calibrated against the primary standard. Examples of two common secondary standards are the AN/URQ-10 and AN/URQ-23. Some test equipment is designed with a built-in frequency standard, allowing users to verify that the equipment is operating within parameters.
An oscilloscope is used to analyze waveforms. Oscilloscopes display waveform signals on a cathode ray tube (CRT) as signal amplitude versus time. A diagram of a common oscilloscope is shown in Figure 1.5-7.
Figure 1.5-7 Oscilloscope
Capacitance, inductance, and resistance are measured by alternating current bridges composed of capacitors, inductors, and resistors in a wide variety of combinations. These bridges operate on the principle of the Wheatstone bridge, in which an unknown resistance is balanced against known resistances.
A wattmeter measures the incident or reflected RF power of a transmitted signal. Incident or forward power is measured by detecting waves traveling forward or to the load, i.e. away from the source. Reflected power is measured by detecting waves traveling from the load. There are two basic types of wattmeters: thruline and microwave. A thruline wattmeter is designed to measure incident and reflected RF power. For higher frequency power measurements in which a
thruline wattmeter is unsuitable, the microwave power meter is used. An example of a thruline and microwave wattmeter shown in Figure 1.5-8a and 1.5-8b (page 4-5-14), respectively.
SEMICONDUCTOR TEST SET
Laboratory transistor test sets are used in experimental work to test all transistor characteristics. For maintenance and repair however, the technician does not need to check all transistor characteristics. A check of two or three characteristics is usually sufficient to determine whether a transistor is faulty. Two of the most important characteristics used for transistor testing are
Figure 1.5-8a Thruline Wattmeter
Figure 1.5-8b Microwave Wattmeter
transistor current gain and the collector leakage or reverse current. These characteristics are measured by the semiconductor test. The rugged, field type, battery-operated tester shown in Figure 1.5-9 was designed to test both transistors and diodes.
Figure 1.5-9 Semiconductor Test Set
TUBE TEST SET
Although most modern electronic equipment has solid state circuitry, tube-type equipment is still in use in the fleet. Until all tube-type equipment is replaced by solid state equipment, technicians will need devices to test tubes. The electron tube tester, shown in Figure 1.5-10, is designed to test all common low power tubes.
To test solid state components without using an ohmmeter, technician once used a shop-made in-circuit static tester called an octopus. An octopus is basically a box that, with its power cord and multiple leads protruding from its sides, resembles an octopus. Technicians used the octopus with a separate oscilloscope to test components without removing them from the circuit. This setup provided the technician a visual display of each component's condition. If an octopus is
Figure 1.5-10 Tube Tester
still in the shop, ensure that it is electrically safety checked and listed on the portable test equipment inventory. Note that some octopus designs can damage solid state devices.
The octopus was rendered obsolete by the Huntron Tracker. The Huntron Tracker HTR1005B-1 is an in-circuit tester designed to check electronic components. It is included in the test equipment inventory of most ships. Various scope patterns are displayed on the unit's built-in oscilloscope to indicate whether a component is faulty. The Huntron HTR1005B-1 was rendered obsolete by the Huntron 5100DS, JETDS designation AN/USM-646, which provides an automated static test capability.
AUTOMATIC TEST EQUIPMENT
ATE is used to troubleshoot printed circuit boards (PCB), circuit card assemblies (CCA), and electronic modules (EM), with minimum intervention by technicians. ATE in use today includes the AN/USM-646, AN/TSM-192, Huntron Tracker 2000, and AN/USM-465. ATE uses software called Test Program Sets (TPS) that contain the learned/verified signatures of PCBs, CCAs, and EMs. ATE hardware compares the learned signatures on the TPS to the signatures of the PCB/CCA/EM under test for the purpose of fault isolation. The faulty PCB/CCA/EM is then repaired by a qualified miniature/microminiature (2M) repair technician. TPS software has been developed for approximately 2,100 of the roughly 55,000 spare PCBs/EMs used in the U.S. Navy. A Master TPS Index Listing lists all TPS and ATE required to repair a given module,
TPS/ATE equipment held by individual ships and shore stations, and the systems/modules that can be repaired by individual ships and shore stations. This information is accessed by module part number, key code of a Standard Electronic Module (SEM), or Federal Stock Number (FSN). The Master TPS Index is available in floppy disk format from the Naval Surface Warfare Center (NSWC) in Crane, IN.
The AN/USM-646, shown in Figure 1.5-11, is a static tester consisting of a Huntron 5100DS and personal computer (PC) with a compact disk (CD) drive. TPSs are contained on CDs referred to as "Gold disks". Gold disks contain the "cold board" signatures of approximately 500 PCBs/CCAs/EMs. TPSs are also developed by users on "Silver disks". The difference between the two is that Gold disks are created by a certified developer based on the signatures of three known good modules, whereas Silver disks are developed by users in-house. AN/USM-646 interface to the components under test is accomplished using sharp-tipped probes and "chip clips".
The AN/TSM-192, shown in Figure 1.5-12, is a Transportable Analog Tester (TAT) that interfaces with a PC with a CD drive. The AN/TSM-192 provides dynamic (i.e., it places a load on the circuit under test) go/no-go testing for analog PCBs/CCAs/EMs, isolating faults to an "ambiguity group" of possible faults, e.g., 15 to 20 components on a complex board. The AN/USM-646 is then used to isolate to the faulty component. TPSs for the AN/TSM-192 were originally on floppy disks and subsequently transferred to a single CD. These TPSs contain the analog signatures of approximately 100 PCBs/CCAs/EMs. "Daughterboards" are used to interface TPSs with PCBs/CCAs/EMs under test.
Huntron Tracker 2000
The Huntron Tracker 2000, shown in Figure 1.5-13, allows technicians to troubleshoot electronic components by comparing them to known analog signatures. This tester applies an alternating current across the component via test leads and displays indications on a CRT. Components can be checked in-circuit however, the technician may be required to make a comparison with a like in-circuit component of another PCB/CCA/EM.
The AN/USM-465, shown in Figure 1.5-14, is a dynamic digital tester that interfaces with a PC with a CD drive. TPSs for the AN/USM-465 were originally on magnetic tape cartridge and subsequently transferred to CD. Interface between the PCB/CCA/EM under test and the TPS is accomplished using various interface devices and "family boards". TPSs designed for the AN/USM-465 contain the digital signatures of approximately 1,500 PCBs/CCAs/EMs.
Figure 1.5-11 AN/USM-646
Figure 1.5-12 AN/TSM-192
Figure 1.5-13 Huntron Tracker 2000
Figure 1.5-14 AN/USM-465
Highly Automated Work Center
A HAWC, shown in Figure 1.5.15, is a work center that integrates the Huntron 5100DS, AN/TSM-192, and AN/USM-465 with one 386DX PC with CD, 5¼", and 3½" drives. Interface is accomplished via standard IEEE cable to the Huntron 5100DS and AN/TSM-192 and via "test
link" ribbon cable to the AN/USM-465. As of January 1994, HAWC has been deployed to 18 ships, various classes.
Figure 1.5-15 HAWC
TEST EQUIPMENT MANAGEMENT
You will find test equipment management to be a considerable challenge. The administration of test equipment involves many areas: inventory, procurement, disposal, calibration, repair, stowage, and handling. To do your job effectively you must be thoroughly familiar with test equipment programs, terminology, references, documentation, and procedures.
The Portable Electrical/Electronic Test Equipment (PEETE) Index for Support Requirements of Shipboard Electronic, Electrical, IC, Weapons, and Reactor Systems (NAVSEA ST000-AA-IDX
-010-PEETE), also referred to as the PEETE or Test Equipment Index, was prepared as a guide for the identification of PEETE required to support prime equipment and systems. It lists PEETE, SPETE, calibration standards, and built-in test equipment. The PEETE Index lists test equipment by SCAT (Sub-Category) Code. SCAT Codes group pieces of electronic test
equipment that have the same purpose and operating characteristics. Each SCAT code is cross-referenced to a specific set of equipment operating characteristics and a list of equipment that have those characteristics. Figure 1.5-16 provides an example of four SCAT codes, their associated equipment operating characteristics, and equipment with those characteristics listed with their Federal Supply Code (FSC).
The ship's test equipment allowance depends on the ship's configuration of prime electronic, electrical, interior communications, weapon, and reactor equipment and systems. The Ship's Portable Electrical/Electronic Test Equipment Requirements List (SPETERL) and any approved Allowance Change Request (ACR) indicate your ship's allowance for PEETE. The type of PEETE allowed is determined by corrective and preventive maintenance measurement specifications for installed prime equipment and systems, and is identified by SCAT code. Several factors are considered to determine PEETE allowance: location and number of prime systems/equipment, portability of test equipment and frequency of use, number of personnel who use test equipment, and ability to share test equipment among different workcenters.
The initial SPETERL for the first of a class is based on the ship's Schedule A government furnished equipment (GFE) and contractor furnished equipment (CFE) configuration. (An example of GFE is electronic equipment; an example of CFE is the propulsion system.) Based on the ship's initial configuration and using information extracted from maintenance requirements and technical manuals, NAVSEA develops the SPETERL. The SPETERL is subsequently updated by configuration changes and allowance change requests. Naval activities report configuration change information on prime equipment/systems and the PEETE required to support them to NAVSEA. NAVSEA adds this information to the database used to prepare the SPETERL. This database is compared to the ship's configuration in the Weapons Systems File (WSF). From this comparison the SPETERL is produced, showing PEETE allowances, quantities on hand, AEL numbers, and equipment/system application. A sample SPETERL page is shown in Figure 1.5-17.
Updated SPETERLs are periodically forwarded to commands. The COSAL Users Manual discusses SPETERL development, format, interface and update. As you can readily see, the validity of the SPETERL depends on the accuracy and completeness of the inventory and configuration data maintained in the WSF, as updated by SCLSIS validations and configuration change reporting to NAVSEA. To ensure SPETERL validity and COSAL support for PEETE, compare the SPETERL and COSAL to identify excesses and deficiencies. Review the chart provided in Figure 1.5-18 regarding resolution of SPETERL/COSAL discrepancies.
Test equipment inventories are conducted semi-annually to ensure that test equipment is properly accounted for. To establish and maintain test equipment accountability (i.e., ensure that it is either on board or traceable to a calibration/repair facility that has temporary custody) use the following documents:
Figure 1.5-16 SCAT Codes
As mentioned previously, a properly maintained SCLSIS will show a complete inventory of test equipment by quantity, serial number, and location. Comparing the SPETERL to the SCLSIS will identify deficiencies and excesses. However, inventory control cannot be accomplished using the SCLSIS and the SPETERL alone. Test equipment distribution and user locations change between SCLSIS validations due to equipment transfers between work centers and required calibration and repair. You can control test equipment inventory by treating it as controlled equipage. Using a NAVSUP Form 306 for each piece of equipment, a custody signature can be obtained when test equipment changes hands, for any reason. When test equipment is due for calibration, as indicated on MEASURE reports, work center supervisors can submit equipment and obtain a custody signature as a receipt. (MEASURE reports will be described later in this lesson topic.)
PEETE inventory satisfies current requirements. Data in the PEETE Index is subject to revision
periodically (it is published annually) as new equipment and systems become available and new requirements are generated. Therefore, you may find differences between data in the PEETE Index and data in the SPETERL, depending on the issue date of the SPETERL. These differences will be eliminated automatically in revisions of the SPETERL. The PEETE Index does not, in any way, supersede or change the SPETERL; nor does it authorize procurement or requisition of items not listed on the SPETERL.
There are two test equipment reviews funded by type commanders. They are the Test Equipment Calibration Readiness Review (TECRR) for CINCLANTFLT, and the Fleet Test Equipment Allowance Program (FTEAP) for CINCPACFLT. TECRR is located in Norfolk, VA and FTEAP is located in San Diego, CA. Fleet Technical Support Center (FTSCLANT and FTSCPAC) representatives or contractors conduct test equipment reviews and report their findings for the purpose of updating the SPETERL, identifying excess and obsolete test equipment, and resolving calibration and repair problems. Excess and obsolete test equipment identified by TECRR/FTEAP reviews is turned in to TECRR and FTEAP redistribution centers. Commands turning in test equipment to a redistribution center must use a DD Form 1149 for transfer and include all technical manuals and accessories.
Test equipment deficiencies are filled by first checking with the FTEAP/TECRR redistribution center, via their TYCOM. Both decommissioning ships and ships with excess test equipment turn test equipment in to redistribution centers for possible reissue. Additionally TECRR and FTEAP can acquire test equipment from training command redistribution centers, i.e., Test Equipment Requirement Allowance Program (TERAP) on the east coast and MR/CAL (Minor Repair/Calibration) on the west coast. The FTEAP and TECRR redistribution centers ensure that the test equipment is repaired, calibrated, and ready for issue. Ensure that your personnel do not dispose of or shop for test equipment at salvage or DRMO (Defense Reutilization and Marketing Office). Test equipment is divided into two categories: GPETE Initial Outfitting (GINO) and GPETE End Item Replacement (GEIR). GINO refers to high value test equipment that is procured by NAVSEA for new systems/equipment being installed in the fleet. GINO is budgeted and procured by the SYSCOM test equipment manager for the new requirements of end users. GINO is stocked at the Navy Supply Center (NSC) in Charleston and San Diego. GEIR refers to replacements for test equipment that has been surveyed due to loss or damage or that is beyond economical repair. GEIR requirements are budgeted by end users from their operations/OPTAR funds. GEIR is stocked at the NSC in Norfolk and Oakland. Drawing test equipment to fill test equipment deficiencies is a little more complicated than turning in excess equipment because there are different actions to take, depending on the classification of the required equipment.
Deficiencies of GINO require no requesting action on your part. These are deficiencies caused by obsolete and new/increased allowances of GPETE and are not to be requisitioned by end users. Any requisitions that you submit to the supply system for these items will be rejected or canceled. GINO requirements are determined and budgeted by the SYSCOM and submitted to SPAWAR for technical review and consolidation. This equipment is automatically shipped to designated end users as it becomes available. The only action you must take is to track shipping
information through the point of contact listed on the cover letter of the SPETERL. Contact TECRR or FTEAP, as appropriate, if the lead time is excessive. Expect a delay in receipt of test equipment that is in short supply. When the ship is in overhaul and the equipment is a new requirement or an increase in allowance, NAVSEA COSAL funds are charged. The equipment is procured using a DD Form 1348. NAVSEAINST 7323.1 is cited in the "Remarks" block to ensure NAVSEA COSAL funds are charged.
If replacement is required for an item that is or was once on board, it is a GEIR item. GEIR is required for GPETE deficiencies caused by missing or unserviceable equipment and requires completion of a Report of Survey (DD Form 200). GEIR equipment must be requisitioned and paid for by the ship. This can be costly. If the item is available at the redistribution center, it will be provided at no cost. If the item is not available at the redistribution center, it must be requisitioned from the supply system using a DD Form 1348 requisition, using OPTAR funds. Refer to the guidelines set forth in Afloat Supply Procedures (NAVSUP P485), and in the general information section of your ship's SPETERL.
GPETE loan pools provide a broad range of ready-for-issue GPETE for short term use. Loan pool inventories are adjusted based on demand to provide continuous availability for fleet units. GPETE from loan pools is checked out for specific purposes (e.g., planned maintenance on the AN/SPS-67 or corrective maintenance on the AN/WSC-3) when it is unavailable aboard your ship. GPETE loan pools are not intended to supplement your ship's allowance. Loan pool equipment must be returned as soon as possible to make it available to other users. Loan pools are located at SIMAs and aboard afloat IMAs.
Board of Inspection and Survey (INSURV) inspection results indicate that inadequate stowage facilities for portable test equipment continues to be a problem in ships. Factors contributing to this problem are rearrangement of stowage by fleet personnel and inadequate provisions for
proper stowage following SHIPALTs. To correct these deficiencies, refer to the Stowage Guide for Portable Electrical/Electronic Test Equipment (PEETE), NAVSEA ST000-AB-010/PEETE. This guide contains information about the availability and use of stowage equipment and aids such as shelving, shock absorbent materials, tie downs, brackets, cabinets, workbenches, and other material required for constructing shipboard stowage facilities. The guide is easy to use and devotes three chapters to information that will help you resolve test equipment stowage problems. In summary, you can ensure proper test equipment stowage by:
Calibration is little more than checking, adjusting, or systematically aligning a test instrument to a known standard. To do this, you must ensure the equipment you send to the calibration lab is in working order. Most calibration labs with which you will deal will be part of an intermediate maintenance activity (IMA). For proper procedures in obtaining these services, each type commander (TYCOM) has specific instructions for commands under its cognizance. There is presently two systems for managing calibration recall in use by the fleet, MEASURE and CRIS, as explained below.
MEASURE is a data processing system designed to provide a standardized system for the recall and scheduling of test, measurement, and diagnostic equipment (TMDE) into calibration facilities. It also provides for the documentation of data pertaining to the calibration actions performed by these facilities.
Each naval activity must ensure the test equipment for which it has been assigned responsibility is submitted on a timely basis to a calibration activity for required calibration.
The MEASURE program is designed to assist these naval facilities in the fulfillment of this responsibility. MEASURE does this by providing for the automatic scheduling and recall of all such test equipment for calibration.
The METER card is used to report changes, additions, or deletions to the user activity's inventory. It is also used to report changes in custody of the item of test equipment. The procedure for filling out the METER card is outlined in the appendices of the MEASURE User's Manual, OPNAV 43P6.
Examples of the MEASURE formats used on the ship by the EMO can be found on pages 1-5-29 through 1-5-31.
CRIS is an automated version of MEASURE which operates on a personal computer and meets all of the MEASURE validation specification requirements.
CRIS provides calibration laboratories and test equipment custodians the ability to manage their Metrology and Calibration (METCAL) functions by using real time data aboard their ship or shore activities. Other benefits include an automated system for test equipment inventory control; the ability to create inventory, recall, production, and calibration readiness reports; an automated method of reporting calibration and repair transactions; and the ability to print MEASURE METER cards or an equivalent METCAL form.
The U.S. Navy is in the process of transferring technical documentation to CD ROM format. The PEETE Index, METRL, and Navy Calibration Activity List are now available on CD.
PROCEED TO ASSIGNMENT SHEET 1-4-1A IN THE ASSIGNMENT BOOKLET. UPON COMPLETION, TAKE THE ASSIGNMENT BOOKLET TO THE LEARNING CENTER INSTRUCTOR.
Figure 1.5-20 MEASURE Format 310
8640B 1628A04954 28480 SIGNAL GENERATOR 12 110394 110393 3.9 N LAB OE01 1 J19956 N35M05225T
8640B 1628A05011 28480 SIGNAL GENERATOR 12 110394 110393 3.9 N LAB OE01 1 J16822 N35M05008T
FR144U OBSLTE B360 32242 ECHO BOX 12 061195 061194 N LAB OE01 2 W53668 SEA1038200
IM157D OBSLTE AO11 28480 SWR METER 18 111195 051194 N LAB OE01 1 Q29835 EST1969293
LT4421 4582 63-1 35351 TEST SET FLIGHT 06 060694 092294 23.3 N LAB OE01 3 P09382 EAST141177
LT5118-03-01 69-13 35351 TS GYRO DISP ASM255 06 120394 060694 29.4 Y LAB OE01 1 066829 G35Y64515R
LT5216-01-01 68-101 35351 TILT TABLE ASM255 12 011595 011594 3.3 Y LAB OE01 1 A49003 G57Y13266R
MST500 DT 566301 PREC TIMER NR NCR 000000 2.7 N LAB OE01 4 O09046 EAST141183
NBC1 0046 31467 BATTERY CHARGER 06 *080794 020794 7.0 N LAB OE01 1 G42463
NBC1 0104 31467 BATTERY CHARGER 06 082594 022594 7.0 N LAB OE01 1 I89697
NBC1 2016 31467 BATTERY CHARGER 06 082594 022594 7.0 N LAB OE01 1 G02449
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