TM 1-1510-225-10 3B-151 Table 3B-85.  Tuning to Airport Frequencies NO. DESCRIPTION/FUNCTION 1 Pressing function key COM will access the communication page. 2 Enter airport to access airport frequency. 3 Indicates  page  2  of  3.    Scroll  vertically  to access additional pages. 4 Sectorization. 5 Communication type. 6 Select desired airport frequency. 7 Airport frequencies. 8 An * indicates airport frequency is currently tuned. 9 Access airport frequencies for given airport. Vertical   scrolling   will   access   additional   V/UHF Airport Frequency pages.  The scrolling wraps around if more than one page exists. Data Lines 1 through 4 will display the following airport frequency information: 1.   The V/UHF frequency. 2.   The  3  or  4-character communication type (ATI, CPT, etc.). 3.   The sectorization data (if any). (f)    V/UHF   Radio   Mode   Selection.      To select  the  V/UHF  radio  mode,  toggle  the   MODE line select  key  on  the  V/UHF  control  page  Figure  3B-123 and    Table    3B -86.        The    possible    selections    are: Transmit/Receive     (TR),     transmit/receive     with     the independent   guard   receiver   activated   (TR/G),   UHF guard  (GD243),  and  VHF  guard  (GD121).    In  UHF guard mode, the FMS-800 tunes the V/UHF transmitter/receiver  to  243.000  MHz  and  deactivates the  independent  guard  receiver.    In  VHF  guard  mode, the  FMS-800  tunes  the  V/UHF  transmitter/receiver  to 121.500 MHz and deactivates the independent guard receiver.      When   in   either   of   the   guard   modes,   the Communication  page  displays  the  guard  frequencies and GUARD for the callsign. (g)   V/UHF    Radio    Squelch,    Bandwidth, Tone,  and  Modulation  Control.    Control  of  the  V/UHF radio  squelch  and  tone  is  performed  on  the  V/UHF Control   page.      Toggle   the   squelch    ON   or   OFF  by pressing   the   SQL   line   select   key.      Select  headset beeps  on  and  off  by  pressing  the    BEEP  line  select key. Figure 3B-123.  V/UHF Control Functions Table 3B-86.  V/UHF Control Functions NO. DESCRIPTION/FUNCTION 1 Pressing the function key COM will access the communication page. 2 Press to access the V/UHF CTRL page. 3 Enable/disable frequency scanning. 4 Access SINCGARS control. 5 Access HAVE QUICK control. 6 Returns to the communication page. 7 Enable/disable audio beeps. 8 Enable/disable squelch. 9 Select radio modes: TR, TR/G, G243.0, or G121.5. (h)   V/UHF HAVE QUICK I/II Functionality.    The  FMS-800  order  of  operations  for setting   up   the   V/UHF   radios   for   HAVE   QUICK   I/II functionality is as follows: 1.   Load  the  MWOD  and/or  FMT  lists into the V/UHF.