TM  1-1520-240-10            3-2-7 CONTROLS/ INDICATOR FUNCTION 100 MHz Control (A-3-2-T) Four position rotary control switch A Selects anti-jam mode. 3 Hundreds digit of desired fre- quency while in the normal mode. 2 Hundreds digit of desired fre- quency while in the normal mode. T Momentary spring-return posi- tion which enables the radio to accept a new TOD for up to one minute after selection. Also used in conjunction with the tone button in the emer- gency startup of the TOD clock when TOD is not available from external sources. 10 MHz Control Ten position (0 through 9) rotary control used to select second digit of operating fre- quency. When in AJ mode, it selects the first digit of net number. 1 MHz Control Ten position (0 through 9) rotary control used to elect third digit of operating frequen- cy. When in AJ mode, it selects the second digit of net number. 0.1 MHz Control Ten position (0 through 9) rotary control used to elect fourth digit of operating fre- quency. When in AJ mode, it selects the third digit of net number. 0.025 MHz Control Four position rotary control used to select fifth and sixth digits of operating frequency. Operates in 0.025 MHz incre- ments. When in the AJ mode, it selects the appropriate fre- quency table within the radio net. Frequency Display Six digit display (200.000 through 399.975) displays se- lected radio operating frequen- cy. CONTROLS/ INDICATOR FUNCTION Channel Selector Used to select and display any of the 20 preset radio frequen- cy channels. CHAN Displays selected preset chan- nel. PRESET Switch (Under channel/fre- quency card) Momentary contact switch. when depressed causes se- lected radio frequency entered on frequency display to be stored in channel indicated on channel display, in normal op- eration. 3-2-11.  Normal Operation – UHF-AM Have Quick II Radio. The following steps provide operating procedures. a.  Starting. (1) Interphone control panel — Set switches as follows. (a) Receiver 2 switch — ON. (b) Function select — 2. (2) Function switch — MAIN or BOTH. (3) Mode selector — As required. (4) SQUELCH switch — As required. (5) VOL control — As required. b.  Presetting Channels. Perform the following steps to preset a channel to desired frequency. (1) Set the Frequency Mode Selector to PRE- SET. (2) Use the manual frequency selector switches to select the frequency to be placed in memory. (3) Turn the preset channel control switch to the desired channel number. (4) Raise  the  cover  under  the  channel  card. Press and release the PRESET switch. Close the cover. (5) Using a soft lead pencil, record the frequen- cy  selected  for  the  channel  number  on  the  card  pro- vided. c.  Stopping. Function switch — OFF. 3-2-12.  Anti-Jam Operation — UH-AM Have Quick II Radio. The following steps provide AJ operating procedures. a.  MWOD Loading. (1) Perform  paragraph  3-2-11  Starting  steps a(1) and a (2).