TB 43-0123
AN/ARN-89
JDE
AN/ARN-89A
JDG
AN/ARN-89B
JDH
AN/ARN-89 ( ) Direction Finder Set
The AN/ARN-89 consists of:
1. Brief Description: The AN/ARN-89 ( ) is an
AM-4859/ARN-89 ................................
Amplifier
airborne, low frequency direction finder which provides
AS-2108/ARN-89 .................................
automatic or manual compass bearing on any radio
C-7392/ARN-89 ...................................
Control
signal within the frequency range of 100 to 3000 kHz.
R-1496/ARN-89 ...................................
Receiver
The inclusion of a beat frequency oscillator (BFO)
The AN/ARN-89A consists of:
enables the set to provide an indication of keyed or
AM-4859A/ARN-89 ..............................
Amplifier
constant carrier continuous wave (CW) stations. The set
AS-2108A/ARN-8 9 .............................
is used in conjunction with a remote indicator to display
C-7392A/ARN-89.................................
Control
the bearing of the aircraft relative to a selected radio
R-1496/ARN-89 ...................................
Receiver
transmission. Three modes of operation enable the
The AN/ARN-89B consists of:
system to function as an automatic direction finder, a
AM-4859A/ARN-89 ..............................
Amplifier
manual direction finder or as an amplitude-modulated
AS-2108A/ARN-8 9 .............................
(AM) communication receiver. Input power requirement
is 27.5 volts DC at 1.4 amp.
Il-B-10
