F. antenna connection, G. cockpit remote switch power connection, H. remote switch alternate power source – ACR&Artex ME406 HM User Manual

Page 65: I. airframe ground connections

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25-62-30

Page 65 of 84

Jun 25/13

ARTEX PRODUCTS / ACR ELECTRONICS, INC

DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL

ME406 (453-6603), ME406HM (453-6604)

(2)

Route the antenna coax cable through the airframe.

NOTE: A longer coax cable, up to 20 feet (6.1 m), may be fabricated if the cable provided is

too short. Use RG-142 or RG-400 coax cable.

(3)

Support the wiring and coax cable by clamping or other suitable means, such that the wiring

and cables are properly supported and protected from chaffing and strain. Refer to the aircraft

manufacturer’s written instructions or as described in AC 43.13-1, Chapter 11, § 9 through 12,

as applicable.

SUBTASK 25-62-30-450-005

F.

Antenna Connection

(1)

Connect the coax cable to the antenna, making sure the cable is routed and supported such

that there is no tensile load (i.e., strain) on the connection.

SUBTASK 25-62-30-450-006

G. Cockpit Remote Switch Power Connection

(1)

Connect the remote switch power wire. If the wire is spliced, fabricate the splice in a manner

acceptable to the aircraft manufacturer or as described in AC 43.13-1, § 13.

NOTE: The power source provides energy for the remote switch assembly LED, but has no

effect on switch functions, as the switch will control the ELT with or without power.

NOTE: Power should be connected directly to the battery using a 1/2 A in-line, slo-blo fuse

or circuit breaker; or an alternate un-switched source, such as the aircraft clock

circuitry.

SUBTASK 25-62-30-450-007

H. Remote Switch Alternate Power Source

(1)

If the aircraft does not have an electrical system (i.e., no battery), it is permissible to fabricate

a substitute power source for the LED, as follows:

(a)

Connect three suitably supported 9V alkaline batteries together in series.

(b)

Connect the positive (+) side to Pin 3 of the remote switch connector.

(c)

Connect the negative (–) side to aircraft ground, such that the circuit is complete.

(d)

Check the battery voltage periodically and replace the batteries every two years.

(e)

Note the alteration in the aircraft logbook.

SUBTASK 25-62-30-450-008

I.

Airframe Ground Connections

(1)

Connect the ground wires to the airframe in accordance with the aircraft manufacturer’s

written instructions or as described in AC 43.13-1, Chapter 11, § 15, as applicable. See Figure

18 Metal Airframe Wiring Diagrams on page 59 and Figure 19 Composite Airframe Wiring

Diagrams on page 60 as appropriate.

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