1966 US Army Vietnam War ARMOR ... - Survival Books

WWW.SURVIVALEBOOKS.COMcommander must determine the maximum de-(c) Keep messages as short as possible.gree of communication security that he can (d) Stress radio discipline and security.employ consistent with his mission and the(e) Destroy enemy jamming stationsreaction time of the enemy. For a detailed dis-where possible and if deemed adcussionof radio security measures, see FMvisable by the tactical commander.24-1, FM 24-18 and (CM) FM 32-5. (f) Always inform the next higher234. Electronic Counter-Countermeasures headquarters of jamming.(Antijamming) (2) Communications officer.a. General. The possibility of electronic in- (a) Use the radio only when necessary.terference to command and control communica- (b) Train radio operators to readjusttions must be carefully considered in planningequipment and continue operatingoperations. Electronic counter-countermeasuresthrough jamming.include but are not limited to-(c) Enforce radio discipline and securi-(1) Siting of communications and surveil- ty to maximum.lance equipment to reduce its vulnera- (d) Require authentication of all transbilityto jamming. Such measures in-missions.clude dispersion, adoption of reverseslope positions for other than line of(e) Site radio stations and antennas tosight antennas or radiating and re-evade enemy jamming.ceiving devices, and frequent dis- (f) Always include alternate call signsplacement when practicable.and frequencies in signal operation(2) Minimizing the use of radiating com- instructions (SOI) and includemunication and surveillance equip- prearranged plans for their use.ment (including such measures as periodsof radio listening silence) to(g) Always report jamming to the com-manding officer and staff.hamper the enemy's signal interceptand intelligence acquisition systems.(3) Radio operators.(3) Providing alternate means in both the enemy jamming.communication and surveillance fieldswith the alternate means operating on (b) Learn to recognize enemy jammingdifferent transmitting frequencies andand report details to officer infrom different locations,charge.(4) Training operators in antijamming (c) Learn to readjust the set to minitechniquesand in detecting enemy de-mize effect of jamming.ceptive action taken against our sur- (d) Operate with minimum power untilveillance devices.jammed-then increase the power.(5) Use of decoys and simulating devices. (e) Shift to alternate frequencies and(6) Use of radar-homing missiles. call signs as directed.b. Radio Jamming Checklists. Enemy forces (f) Authenticate all transmissions.usually have the capability to jam all radio cir- (g) Use dummy antenna, when one iscults. Until jam-proof equipment and tech-provided, on tuneup of transmitter.niques are developed, all possible steps must betaken to minimize the effects of enemy jam- (h) KEEP OFF THE AIR, except asming.absolutely necessary.(1) Commanders and staff. (i) Observe radio discipline at all(a) Reduce use of radio messages to absoluteminimum.times.(j) Keep transmission as short as pos-(b) Preplan all operations possible; usesible.brevity codes to implement plans (k) When jammed, keep calm, keep tryanddirectives.ing, keep operating.132