radio operator - USA Voorschrift, Technical Manual, 11-454 Irpl radio propagation handbook : Part 1 : preliminary - USA Voorschrift, Preliminary Technical Manual, 11-499 Radio transmitter 149-A - USA Voorschrift, Technical Manual, 11-822 Radio sets SCR-399-A and SCR-499-A - USA Voorschrift, Technical Manual, 11-281 Infantry communication data Radio sets SCR-509 (*) and SCR-510 (*) - USA Voorschrift, Technical Manual, 11-605 Radio sets SCR-193-D, -G, -H, -J, -K, -KB, -KW, -L, -M, -P, -Q, -R, -S, -T, and -U - USA Voorschrift, Technical Manual, 11-273 Field Radio Techniques. - USA Voorschrift Field Manual 24-18 Radio Sets AN/GRC-3, -4, -5, -6, -7 and -8-FR - USA Voorschrift, Technical Manual, 11-284 Tactics instruction memorandum : Radio voice procedure for field artillery Radio set, type SCR-132 - USA Voorschrift, Technical Regulations, No. 1210-30 Radio sets, types SCR-131 and SCR-16 - USA Voorschrift, Technical Regulations, No. 1210-50