Conduct Cold Start Net Opening (Primary NCS Task 4)

TM 11-5820-890-10-8

6.3i.

Conduct Cold Start Net Opening (Primary NCS Task 4)

DESCRIPTION

The Cold Start net opening procedure has for most units been replaced

by the simpler, less demanding, Hot Start method covered in Primary

NCS Task 3, above. The Cold Start method remains an option for NCSs

to use if desired. The Cold Start net opening procedure requires

operators to load their radios with COMSEC keys and FH data, but not

sync time. Sync time is passed electronically from the NCS to net

members by ERF. Coordination is essential to ensure that all operators

are ready when the ERF is sent and that they properly store the data.

While the Cold Start method works, experience has shown that

coordination requirements and operator actions make it a more

demanding process than the Hot Start method. It is available for use

whenever an NCS needs to bring all operators into the net at the exact

same time.

DETAILED FLOWCHART

CONDUCT COLD START NET OPENING

SUBTASKS

ACTIONS

RESULTS

a. Prepare NCS radio for

Load CUE, MAN and SC

(7)

(Perform Primary Operator Task 1)

Cold Start net opening

freqs, as required

Load COMSEC keys, FH

(2)

(Perform Primary Operator Task 2)

data, and sync time*

Prepare net operators for

Ensure all operator RTs

(1)

(Operators perform an ICOM fill

Cold Start net opening

are properly loaded

less sync time)

(2) Advise operators when

(Operators must be standing by

the net is to be opened

at exact net opening time)

c. Send ERF at announced

(1)

Alert net that ERF is to be

(Helps operators note when ERF

net opening time

sent at this time**

is received)

(2)

Press [LOAD] on RT

RT display shows "HLD"

(Get data from what chan?)

Enter channel in which

(3)

RT display shows "HF XXX,"

ERF data is stored

blinks and beeps

Press [ERF] on RT

(4)

RT display shows "SEND"

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