TB 43-0123
MD-1047/A
EIC: N/A
MD-1047/A Audio Threshold System
1. Brief Description: The MD-1047A Audio
3. Applicable Publications:
Threshold System is installed in the CH-47D and UH-1H
TM 11-1520-240-23 (Pertains to CH-47D Aircraft)
aircraft and is designed to provide adequate cross-talk
TM 11-1520-240-23P (Pertains to CH-47D Aircraft)
isolation during KY-58 secure voice operation to prevent
TM 11-1520-210-23 (Pertains to UH-1 Aircraft)
inadvertent transmission of audio from another radio
facility. It will accommodate up to four interphone station.
2. Applicable Tools and Test Equipment:
See Appendix B for nomenclature, NSN, etc.
Type No.
AVUM
AVIM
ANURM-127
X
ANUSM-223
X
X
ANIUSM-281
X
ME-30EIJ
X
TK-1 00G
X
TK-101/G
X
TK-1 05/G
X
ll-A-48
