Figure 1-3. System Application.

TM 11-5826-258-24

EL00N001

Figure 1-3. System Application.

Table 1-1. Tabulated Data-Continued

Accuracy

Manual VOR

Bearing error leas than 0.75 under the conditions of paragraph 2.1.1 of

DO- 153 using a precision tracking selector.

Automatic VOR

Bearing error leas than 2.0 under the conditions of paragraph 2.4 of DO- 153.

Centering error lees than 6.3 millivolt-s (Class D) under the conditions of para-

Localizer

graph 2.1 of RTCA Document DO-131.

Deflection sensitivity:

150 10 millivolts for 10 course offset.

VOR

90 millivolts for a 0.093 DDM with a deflection linearity of 90 9 millivolts at

Localizer

0.093 DDM.

Adjustable balanced output which provides 50 milliwatts into 150-ohm external

Audio output power

load.

Audio output will not vary more than 6 db from 350 Hz to 2500 Hz.

Audio frequency response

Less than 25% with a 50 to 20,000 v standard audio test signal

Harmonic distortion

More than 50 db.

Manual gain control

sensitivity:

Audio (VOR and localizer)

Does not require more than 3.0 microvolt rf input signal modulated 30% by 1000

Hz for a 6-db signal-plus-noise-to-noise ratio.

RF, VOR

Does not require more than 3.0 microvolt standard VOR teat signal for fully con-

cealed VOR flag and satisfactory navigation performance.

RF, localizer

Does not require more than 3.0 microvolt standard localizer test signal for fully

concealed localizer flag and satisfactory navigation performance.

VOR adjacent channel

Bearing information will not change more than 10 because of adjacent channel

signals.

Automatic indication will be within 3 of new bearing, within 15 seconds after an

Time response

offset course of 180 is abruptly applied.

Damping characteristics:

VOR

When the difference in phase between the two components of an on course stand-

ard VOR teat signal of 1000 microvolt is abruptly changed, the pointer of a

CDI ID-1347 C/ARN equivalent will reach 70% of its ultimate position within

3.5 seconds for the R-2023/ARN-123(V) or 5.7 seconds for the R-2139/

ARN-123(V) and the pointer overshoot will not exceed 20%.

Change 1

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