Basis of Issue Plan - BOIP

A. DESCRIPTION: THE AN/TSQ-138, MASTER CONTROL STATION (TRAILBLAZER), IS A TACTICAL GROUND-BASED HIGH FREQUENCY (HF), VERY HIGH FREQUENCY (VHF), ULTRAHIGH FREQUENCY (UHF) SIGNAL INTERCEPT SYSTEM MOUNTED IN A BALLISTICALLY PROTECTED KEVLAR SHELTER. THE AN/TSQ-138 ALSO PROVIDES DIRECTION FINDING (DF) LINE OF BEARING (LOB) FOR INTERCEPTED VHF EMITTERS. THE AN/TSQ-138 HAS A 50-FOOT QUICK-ERECT HYDRAULIC/PNEUMATIC ANTENNA MAST ASSEMBLY MOUNTED ON THE ROOF OF A 5-TON TRUCK. THE TRAILBLAZER IS 156" HIGH, 98" WIDE, 307.4" LONG AND WEIGHS 9,712 POUNDS. THE AN/TSQ-138 CONSISTS OF THE FOLLOWING COMPONENTS: A24934 AIR CONDITIONER, 36000 BTU, 208V, 400CY, 3PH 1:1 A69246 ANTENNA, DATA LINK, AT-197A/GR 1:1 D81537 DECONTAMINATING APPARATUS PORTABLE, M13 1:1 E90586 CONTROL INTERCOMMUNICATION SET: C1611D/AIC 2:1 H48904 FILTER UNIT GAS PARTICULATE: 200 CFM, M56 1:1 J36725 GENERAL ST DIESEL ENGINE, TAC PRECISE, 30 KW 1:1 J47457 INST KIT: MK-2326/VRC FOR AN/VRC-89/91/92 1:1 M78317 MOUNTING KIT CHEM AGENT AUTO ALARM M182 3:1 R44863 RADIO SET: AN/VRC-89A 1:1 V31211 TELEPHONE SET TA-312/PT 2:1 B. CAPABILITIES: THE AN/TSQ-138, MASTER CONTROL SET (TRAILBLAZER), PROVIDES SIGNAL INTERCEPT DATA IN THE HF, VHF AND UHF RANGE AND PROVIDES VHF EMITTER LOBS. WHEN USED IN CONJUNCTION WITH AT LEAST TWO OTHER AN/TSQ-138, THE AN/TSQ-138 CAN COMPUTE VHF EMITTER FIXED LOCATIONS THROUGH LOB DATA TRANSFER VIA A HIGH-SPEED DATA LINK. THE AN/TSQ-138 CONTROLS THE DATA LINK BETWEEN OTHER MASTER CONTROL SETS WITHIN A DESIGNATED NETWORK. THE TRAILBLAZER SYSTEM (MASTER CONTROL SET) SUPPORTS THE DIVISION AND BRIGADE COMMANDER'S TARGET AND SITUATION DEVELOPMENT AND FORCE PROTECTION REQUIREMENTS THROUGH ITS HIGH-CAPACITY, GROUND-BASED COMMUNICATIONS INTERCEPT, PROCESSING, AND DIRECTION FINDING CAPABILITIES. C. EMPLOYMENT: THE AN/TSQ-138, MASTER CONTROL SET (TRAILBLAZER), IS EMPLOYED IN A HEAVY DIVISION, ELECTRONIC WARFARE (EW) COMPANY, AND DEPLOYED TO FULLY COVER A DIVISION FRONT. D. BASIS OF ISSUE: 5 MASTER CONTROL SETS (TRAILBLAZERS) PER HEAVY DIVISION, EW COMPANY; 9 FOR TRAINING (FT HUACHUCA): 4 IN C COMPANY (W1E82C) AND 2 IN I COMPANY (W1E81E), 305TH MI BATTALION; 3 IN A COMPANY (W1E83B), 304TH MI BATTALION (FT HUACHUCA). E. POWER REQUIREMENTS: POWER FOR THE AN/TSQ-138 IS PROVIDED BY A 5-TON TRAILER SUPPORT UNIT EQUIPPED WITH A 30KW, 400HZ DIESEL GENERATOR (MEP-114A), AS PART OF THE TRAILBLAZER SYSTEM. F. TRANSPORTATION REQUIREMENTS: THE AN/TSQ-138 IS TRANSPORTED ON THE X40794, M923A2, 5-TON DROP-SIDE TRUCK 6X6 WITH A 5-TON TRAILER SUPPORT UNIT. THE TOTAL WEIGHT FOR THE TRUCK, SHELTER AND TRAILER SUPPORT UNIT IS 42,900 POUNDS. THE HMMWV CARGO-TROOP TRUCK (T61494) IS USED TO TRANSPORT PERSONNEL AND EQUIPMENT. THE X40794, WITH THE 5-TON TRAILER SUPPORT UNIT, IS AIR TRANSPORTABLE BY C-130 OR LARGER AIRCRAFT. G. PERSONNEL/MAINTENANCE IMPACTS: (1) OPERATOR: 98G (A) CREW SIZE: SIX 98G FOR EACH SYSTEM: ONE E6, THREE E5, AND TWO E4. (B) TRAINING REQUIREMENTS (MOS/GENERAL): RESIDENT TRAINING FOR THE SYSTEM IS AN ADDITIONAL FUNCTIONAL COURSE FOR MOS 98G, COURSE NUMBER 231-F20. (2) MAINTAINERS: (A) UL MAINTENANCE: 31U, 33T, 52D, 52DC9, AND 93D. (B) DS MAINTENANCE: 33T, 35E, 35N, AND 52D. (C) GS MAINTENANCE: 33T, 35E, 35N, 52D AND 52DC9. H. SPECIAL NOTES: 1. THE CONFIGURATION WAS DEVELOPED UNDER THE AN/TSQ-114B, MASTER CONTROL SET (TRAILBLAZER). IAW HQ DA DIRECTION, THE FY84 TRAILBLAZER PRODUCTION CONTRACT WILL DELETE THE AN/TSQ-139 (REMOTE SLAVE SET) AND PROVIDE FOR 5 EACH AN/TSQ-138 (MASTER CONTROL SET) PER DIVISION FRONT. A CTA ITEM, LIN M78317, MOUNTING KIT CHEMICAL AGENT ALARM, M182 (AR 50-909, TABLE 60) IS REQUIRED TO SUPPORT AN/TSQ-138. 2. AMENDMENT 3 DELETED THE PRIME MOVER LIN C10858 (CARGO CARRIER, FULL TRACKED) AND ADDED LIN X40794 (5-TON TRUCK CARGO). WITH THIS CHANGE OF PRIME MOVER, AMENDMENT 4 CHANGED THE PERSONNEL, ASOIE, AND DPAMMH AND THE RATIO OF THE X40794 TO 6:5. BECAUSE SINCGARS RADIOS ARE IN FINAL FIELDING STAGE, AMENDMENT 5 DELETED CMI LINS B38070, M77926, R25600, AND R33939 AND ADDED LINS J47457, R44863, AND J36725. TO SATISFY ODS REQUIREMENT FOR TIMELY COMMUNICATIONS BETWEEN THE TRAILBLAZER SYSTEM AND ITS ASSOCIATED SUPPORT VEHICLE, ASOIE LIN R67908 (RADIO SET: AN/VRC-90A) AND J31569 (INSTALLATION KIT) WERE ADDED. BOIP C151AA, ELECTRONIC TRANSFER KEYING DEVICE KYK-13/TSEC (LIN Z21128), WILL PROVIDE A 1 FOR 1 REPLACEMENT OF KYX-15/TEC (LIN N02758) AND THIS BOIP WILL ALSO REMOVE THE KYK-13 (LIN E98103) AND K0I-18 (LIN T40405). AMENDMENT 6 CORRECTED THE LEVEL OF USE FOR LIN S41715 (ASOIE) BY ADDING UNIT LEVEL (UL), DELETED MOS 39B AND THE GENERAL SUPPORT MAINTENANCE MANHOURS OF 4.3, AND ADDED LIN Z70236 (NAVSTAR GPS PRECISION LIGHTWEIGHT GPS RECEIVER) AS ASOIE WITH MOS 31U PERFORMING UL MAINTENANCE OF 3.30 MANHOURS. 3. BASIS OF ISSUE NARRATIVE GUIDANCE IS APPROPRIATE FOR PUBLICATION IN AR 71-13.