TM 11-5895-1412-12&PNET OPENINGA frequency-hopping (FH) radio net must be initially opened by NCS. It isextremely important that you listen to his instructions carefully. He guidesyou through the steps.If you lose contact during a procedure, see thesection entitled LOST COMMUNICATION in this appendix (page 1-10). If youmissed your primary net’s opening, cue NCS; then request an ERF.Your rt needs special data to operate in a frequency hopping (FH) mode. Netopening is the procedure for loading this data.There are two procedures for net opening: (1) cold start and (2) time hack.The NCS will tell you which one to use.Always do the pre-mission checkbefore a mission.PRE-MISSION CHECKNOTE:If you do not perform the following steps, you risk radio failureduring a mission.000000001.2.3.4.5.1.2.3.4.Make sure your radio is assembled correctly (refer to TM 11-5820-890-10-4).Make sure the PMCS is done on the following items (refer to TM 11-5820-890-10-3 for more information):Battery physical and electrical condition.Receiver-transmitter self-test.Transmitter.Mounting adapter and mounting base.Remote operation checks (control-monitor self-test, control-monitorrt function control).Make sure the routine checks are done on the following items(refer to TM 11-5820 -890-10-3 for more information):Antennas.Cables and cable connectors.Controls and switches.Mounting and assembly hardware.Make sure RF switch is set to authorized setting.Check battery life condition (refer to TM 11-5820-890-10-4).Load required data.Check required load.(Do you have the correct hopsets, lockout sets,TRANSEC variable, CUE frequency, and MAN frequency?)Stand by for net opening (the NCS contacts you). Make sure you canestablish communication on each net you are operating in.I-6
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