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Page Title: OPERATIONAL CHECK. Continued
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TM 11-5820-890-30-5 3-17. OPERATIONAL CHECK. Continued Step 1. SELF-TEST, RECEIVE, AND TRANSMIT CHECK. Continued Action h.  Connect  DMM  to  RF  PROBE. Set  UUT  RT:  FCTN:  SQ  ON. Set  PTT:  UUT. Read  DMM.  Repeat  for  each  channel. i. Set  PTT:  OFF. Set  power  supply  to  22  V  dc. j. Set  PTT:  UUT. Read  DMM. k.   Set   PTT:   OFF. Set  power  supply  to  31  V  dc. Set  PTT:  UUT. Read  DMM. l. Set  PTT:  OFF. Set  power  supply  to  27.5  V  dc. m.  Set  RF  SWITCH:  2. Set  UUT  RT:  RF:  M. n.   Set   PTT:   UUT. Read  frequency  counter. o.  Set  RF  SWITCH:  1. Set  UUT  RT:  RF:  HI. Read SIG display. p.  Press  handset  PTT  switch  and  talk  into handset. q.  Set  PTT:  OFF. Response h.  DMM  reads  35  to  39  dBm  for  all  channels. If  not,  go  to  chart  2. i. No  response. j. DMM  reads  35  to  39  dBm  for  all  channels. If  not,  go  to  chart  2. k.  DMM  reads  35  to  39  dBm  for  all  channels. If  not,  go  to  chart  2. l. No  response. m.  No  response. n.   Frequencies   should   read: CHAN Frequency  (MHz) MAN 48.999750   to   49.000250 1 87.974550   to   87.975450 2 54.999770   to   55.000230 3 32.999825   to   33.000175 4 39.999800   to   40.000200 5 60.999700   to   61.000300 6 71.999650   to   72.000350 CUE 79.999600   to   80.000400 If  not,  the  RT  is  bad.  See  chapter  2. o.  SIG  display  reading  is  5,  6,  or  7.  If  not, the  RT  is  bad.  See  chapter  2. p.  Sidetone  is  present.  If  not,  the  RT  is  bad. See  chapter  2. q.   No   response. 3-29


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