HP AN, URM-180, URM-184A manual TM 11-6625-1576-24P

Page 6

TM 11-6625-1576-24P

Recoverability

code

Definition

4. Special Information.

a. Usable on codes are shown in the description

H – Repairable item. When uneconomically repairable, condemn and diapose at the

general support level.

c. National Stock Number. Indicates the National stock number assigned to the item and will be used for requisitioning purposes.

d. Part Number. Indicates the primary number used by the manufacturer (individual, company, firm, corporation, or Government activity), which controls the design and characteristics of the item b y m e a n s o f i t s e n g i n e e r i n g d r a w i n g s , specifications standards, and inspection requirements, to identify an item or range of items.

NOTE

W h e n a stock-numbered i t e m i s requisitioned, the repair part received may

have a different part number than the part being replaced.

e. Federal Supply Code for Manufacturer (FSCM). The FSCM is a 5-digit numeric code listed in SB 708-42 which is used to identify the manufacturer, distributor, or Government agency, etc.

f. Description. Indicates the Federal item name and, if required, a minimum description to identify the item. When the part to be used differs between serial numbers of the same model, the effective serial numbers are shown as the last line of the description.

g. Unit of Measure (U/M). Indicates the standard of the basic quantity of the listed item as used in performing the actual maintenance func- tion. This measure is expressed by a two- character alphabetical abbreviation (e.g., ea. in, pr, etc.). When the unit of measure differs from the unit of issue, the lowest unit of issue that will satisfy the required units of measure will be requisitioned.

h. Quantity Incorporated in Unit. Indicates the quantity of the item used in the breakout shown on the illustration figure, which is prepared for a functional group subfunctional group, or an assembly.

column. Uncoded items are applicable to all

models. Identification of the usable on codes used

in this publication are:

Code

Used on

CZN

AN/URM-180

Model 333A

CZP

AN/URM-180

Model 333A01

CZQ

AN/URM-184

Model 334A

CZR

AN/URM-184

Model 334A01

b. The following publication pertains to the AN/URM-180 and its components: TM 11-6625- 1576-15 Distortion Analyzer HP 333A and 334A.

5.How to Locate Repair Parts.

a. When National stock number or part number is unknown:

(1)First. Using the table of contents, determine the functional group within which the repair part belongs. This is necessary since illustrations are prepared for functional groups, and listings are divided into the same groups.

(2)Second. Find the illustration covering the functional group to which the repair part belongs.

(3)Third. Identify the repair part on the illustration and note the illustration figure and item number of the repair part.

(4)Fourth. Using the Repair Parts Listing, find the figure and item number noted on the illustration.

b. When National stock number or part number is known:

(1)First. Using the Index of National Stock Numbers and Part Numbers, find the pertinent National stock number or part number. This index is in ascending NSN sequence, followed by a list of part numbers in ascending alphanumeric sequence, cross-referenced to the illustration figure number and item number.

(2)Second. After finding the figure and item number, locate the figure and item number in the repair parts list.

6.Abbreviations.

(Not applicable)

(Next printed page is 4.)

2

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Image 6
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Contents Distortion Analyzers AN/ URM-180 HEWLETT-PACKARD Model 333A Page 1 1 6 6 2 5 1 5 7 6 2 4 P Page Section Introduction TM 11-6625-1576-24P Page Indicator Distortion AN/URM-180 Section Repair Parts List TM 11-6625-1576-24P Section II. Repair Parts List CAPACITOR, FIXED, Mica Dielectric Xdhzz Page Mechanical parts and A4 PC board Frequency Tuning Subassembly Paozz PANEL, Front CNZ Pahzz Page G u r e 4 . I m p e d a n c e c o n v e r t e r CAPACITOR, FIXED, MICA, Dielectric RCR07G302JS TRANSISTOR, SILICON, NPN Pahzz Rejection amplifier RCR20G302JS CAPACITOR, FIXED, MICA, Dielectric Pahzz Page Metering circuit CAPACITOR, FIXED, Electrolytic Xdhzz RESISTOR, FIXED, FILM, 333A SN970-01186 and Above Page Power supply RESISTOR, VARIABLE, 333A SN910-01665 and below Section IV. National Stock Number and Part Number Index Section IV. National Stock Number and Part Number Index Section IV. National Stock Number and Part Number Index RCR07G433JS Section IV. National Stock Number and Part Number Index Fscm Section IV. National Stock Number and Part Number Index Fscm Page Page Page Page Page Page Page Page Page Major General, United States Army The Adjutant General Page

URM-180, URM-184A, AN specifications

HP AN, URM-184A, and URM-180 are three notable radios that have earned their place in the ranks of significant communication equipment used primarily by military and aviation sectors. Each of these models features distinct properties and advanced technologies that cater to specific operational needs.

The HP AN is a versatile communication device known for its reliability and durability in challenging environments. It supports multiple frequency bands, enabling seamless communication over long distances. Its robust design is tailored to withstand extreme weather conditions and rough handling, making it a preferred choice for military operations. The HP AN employs advanced modulation techniques that enhance signal clarity and reduce interference, ensuring secure communications. Additionally, it integrates digital signal processing technology, which further improves performance by optimizing audio quality and reducing background noise.

The URM-184A, on the other hand, is a tactical radio designed to provide superior performance in both ground and air operations. One of its standout features is the wideband frequency capability, which allows it to operate across a broad spectrum of frequencies, enhancing its versatility. The URM-184A is equipped with sophisticated encryption algorithms to ensure secure voice and data transmission, critical for defense applications. This model also boasts improved battery life, providing extended operational readiness without the need for frequent recharges. Its ergonomic design enables ease of use, even in high-pressure situations.

Meanwhile, the URM-180 is tailored for air traffic control and aviation communication. It emphasizes clarity and reliability, ensuring pilots and ground crews can maintain effective communication during flights. The URM-180 incorporates state-of-the-art noise-cancellation technology, which minimizes background sounds, allowing for a clearer transmission of vital information. It also features an intuitive interface that simplifies operation, crucial during busy flight operations. This model supports both analog and digital communication formats, making it compatible with various aircraft systems.

In summary, HP AN, URM-184A, and URM-180 radios exemplify advanced engineering and innovative technologies suited for military and aviation communication. Their key features, including durability, wideband frequency capabilities, advanced encryption, and noise-cancellation technology, ensure they meet the demanding requirements of modern operational environments. Each model offers unique advantages that cater to specific user needs, making them invaluable assets in their respective fields.
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