TM  1-1520-240-10            3-2-5 Table  3-2-1.   Have Quick II Additional Functions Frequency and Use FUNCTION FREQUENCY    USE Operate/verify 220.000 Places the radio in the normal operat- ing mode and pro- vides for the verifi- cation of an MWOD logged for entered date code. MWOD load 220.025 Enables the load- ing of MWOD’s. MWOD Erase 220.050 Enables the pilot to completely erase the nonvola- tile memory con- taining the MWOD’s. FMT frequency load 220.075 Enables the load- ing of training fre- quencies. MWOD data is stored in nonvolatile memory within the radio set. Seven memory locations are available for each MWOD with the capability of storing a maximum of six MWODs within the radio set. The channel selectors, the manual frequency selectors, and the tone button are uti- lized  to  load  the  required  segments  for  each  MWOD. Channel positions 20–14 are used to facilitate the load- ing of MWOD segments. A minimum of one WOD must be stored for the unit to be functional in the AJ mode. Channel position 14 is used for day-of-month information (date code). The date code is represented by frequency 3AB.000 MHz in which AB is the day of the month. For example; if today’s date is the 15th of the month, the date code entry would be 315.000 MHz. Channel position 1 is used for entering the current operational date is the same as the date code format. When the radio is turned off or power is lost after entry of MWOD and date code, the data is not lost; therefore, the information remains intact until manually changed or era- sed. The six most recently entered MWOD’s are retai- ned. If a MWOD with duplicate date is entered, the new entry takes precedence. After the MWOD information is entered, the pilot would proceed to obtain the TOD. Operational date information is part of the HQII TOD message. If HQII TOD message is unavailable, the pilot must manually enter the opera- tional date so the radio can select the proper MWOD. If power is lost, operational date is lost and must be reen- tered. 3-2-7.  Time-of-Day. The TOD is essential for communicating in the AJ mode which allows frequency-hopping at the same instant in time. Reception and transmission of the TOD is possible in normal and AJ modes. The first TOD reception must occur in the normal mode. The radio automatically accepts the first TOD message once the predesignated frequency for TOD transmission has been entered and the T position of the hundredth megahertz selector has been momentarily selected and released. Subsequent messages are ignored unless the pilot enables the radio to receive a new/updated TOD. The TOD contained in a radio may also be sent to other radios similarly equipped. 3-2-8.  Net Number. The net number enables multiple station nets to operate simultaneously  on  a  noninterfering  basis  in  AJ  mode, while sharing a common WOD and TOD. The net number begins with the letter A and is followed by three digits from 000 to 999. The last two digits of the display desig- nate how the radio is to function and/or the frequency hopping  table  being  used  (Table  3-2-2).  Net  number availability is dependent on the operational mode of AJ and is depicted in table 3-2-3. Table  3-2-2.   Net Selection TACTICAL 00 - Basic HAVE QUICK 25 - HAVE QUICK II NATO Hopset 50 - HAVE QUICK II non-NATO Hopset 75 - Not Used-Interrupted Fault Tone TRAINING 00 - Basic HAVE QUICK Training 25 - HAVE QUICK II Training 50/75 - Not Used - Interrupted Fault Tone Table  3-2-3.   Net Type, Quantity, and Frequency Range Types of Nets Quantity Range of Nets Basic HQ Training 5    A00.000 – A00.400 Basic HQ Tactical 1000    A00.000 – A01.500 HQ II Training 16    A00.025 – A01.525 HQ II Tactical 1000    A00.0XX – A99.9XX NOTE Any  selection  of  a  net  number  outside  the range indicated, for each type of net, will re- sult in the invalid number warning tone.