TM 11-5820-890-30-5 Section I. ABBREVIATIONS Continued Abbreviation L LD LD-V LE LO LPF LVL M MAPS MGROUP M/V RT MDL MEM MOD MTOE mV N N/C OFST OP  CHECK OUT P-P PA PLL PMCS PN POT PR PRE PRI PT PTT PTTR PWR PWR SPLY RAM RCA RCU RCV RED REF REM Description Low Load Load-variable Late  entry Local   oscillator Low  pass  filter Level Medium Maintenance  action  precise symptom Maintenance  Group Manpack/vehicular receiver-transmitter Module Memory Modulated Modified  table  of  organization and   equipment Mini-volt Not No  contact Offset Operational  Check output Peak-to-peak Power  amplifier Phase  locked  loop Preventive  Maintenance Checks  and  Services Part  number Potentiometer Preset Present Primary Plain text Push-to-talk Push-to-talk   receive Power Power supply Random  access  memory Remote  control  adapter Remote  control  unit Receive Red Reference Remote Abbreviation REQ RF RM RMS ROD ROM RT RTN RXMT SC SEL SEQ SIG SIG  STR  RCV SNAP SP SQ ST STR STW SW SYNC TD TDR TM TOD TP TR TST UUT V VAR VCO VCXO VOL VSO VSWR W WB WHSP XMT Z-A Description Request Radio  Frequency Remote  mode Remote  mode  select Report  of  Discrepancy Read  only  memory Receiver-transmitter Return Retransmit Single  channel select Sequential Signal Signal  strength  receive Steerable  null  antenna processor Speed Squelch Sidetone Strobe STOW Switch Synchronize Time  delay Transportation   Discrepancy Report Technical Manual FH  sync  time Test Point Transmit/receive Test Unit Under Test volt Variable Voltage   controlled   oscillator Voltage  controlled  crystal oscillator Volume Variable  select  zero Voltage  standing  wave  ratio Wire Waveband Whisper Transmit Zero  all E-2