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TM 11-5820-890-20-2
6-1
CHAPTER 6
FILL DEVICES
Subject
Para
Page
General
6.1
6-1
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Automated Net Control Device (ANCD)
6.2
6-1
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ECCM Fill Device
6.3
3
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6.1.
GENERAL.
The SINCGARS radio may be loaded with required data in two ways. The primary method is by use of the
Automated Net Control Device (ANCD) (AN/CYZ 10), which loads the radio with both COMSEC keys and
frequency hopping (FH) data. The other method involves the use of a COMSEC fill device (KYK 13, KYX 15,
KOI 18) to load COMSEC keys and an ECCM fill device (MX 18290) to load FH data. This chapter provides
minimum essential guidance to the unit level maintainer regarding maintenance of the ANCD and ECCM Fill
Device.
6.2.
AUTOMATED NET CONTROL DEVICE (ANCD).
a.
Maintenance Concept. The maintenance concept for the ANCD is for the unit level maintainer to
requisition and repair all external parts in accordance with TM 11 5810 394 14&P. If the problem is
internal, unit maintenance personnel will use BIT software to determine the operational status of the
ANCD. If the BIT confirms that the ANCD is faulty, unit maintenance will turn in the faulty ANCD through
normal supply channels to a COMSEC depot. The unit will then requisition a replacement ANCD through
normal supply channels. Also, replacement ANCDs are available at brigade and higher level signal
offices for temporary loan to units needing replacement ANCDs. Unit SOP should indicate how
temporary replacement ANCDs are to be provided to subordinate units.
b.
Battery Replacement. All ANCD users, including operators, are required to change the ANCD batteries
whenever necessary. Batteries should be changed as soon as feasible after the •LOW BAT" message
appears in the ANCD display window. The ANCD will retain data for two minutes after the batteries have
been removed. You will have two minutes to complete battery replacement, or all data stored in the
ANCD will be lost. The procedure for changing ANCD batteries is as stated below and as shown in the
accompanying graphic.
(1) Using a coin or screwdriver, remove four screws and battery compartment cover from the ANCD.
(2) Remove the battery housing from the ANCD.
(3) Remove batteries from the battery housing and replace them, maintaining proper polarity.
(4) Insert the battery housing into the ANCD, again ensuring proper polarity.
(5) Install the battery cover and tighten screws to a firm setting.
(6) Turn the ANCD ON and verify that battery change was successful.
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