• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
W. RADAR ALTIMETER CHECK
3.  HSI and Magnetic Compass

TM-1-1520-240-MTF Army Model CH-47D Heilcopter (EIC:RCD) Manual
Page Navigation
  139    140    141    142    143  144  145    146    147    148    149  
TM 1-1520-240-MTF 4-51 (1)   1 Time — Volume of the audio warning message decreases by one-half. (2)   2 Times — Audio warning message is disabled    and    no    longer    heard    in headsets. j.   Check dimming control for proper operation from DIM to BRT. (1)   Check digital display dims and goes out. (2)   Check LO caution lights dim but do not go out. X.  NAVIGATION and COMMUNICATION CHECK. 1-47. 1.  UHF. a.   Transmit and receive. b.   Preset and manual tune. c.   Check both a high and low frequency, e.g., over 300 MHz and under 300 MHz. 2.  VHF-AM/FM. a.   Transmit and receive. b.   Check  both  AM  and  FM  bands  at  high, medium, and low frequencies. c.   FM Homing. (1)   MODE SEL — DF. (2)   HSI MODE SELECT panel —FM SEL, check FM SEL lit. (3)   Course deviation bar on HSI — Check response in turns. (4)   TO-FROM arrows concealed on HSI. (5)   GS and NAV OFF flags concealed on HSI.







Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.