4.
On CSC panel, NAV B monitor control -Press.

5.
Check  for correct station identi.er in ear-phones.

6.
Navigation information shall consist of bearing, slant distance and groundspeed to station, dis-played on HSI.

3.16.3.4 Normal Operation Air to Air Receive Mode.
1. Choose channel, or preset on NAV SELECT screen.
NOTE

Use channel pairings with a 63 channel separation between channels on the aircraft. For example, if the airborne beacon aircraft is operating on channel 15Y, the helicopter’s control must be set to 78Y.
In all TACAN systems there is the possibil-ity of interference from IFF, transponder, and DME signals when operating in the air to air modes. In order to minimize the pos-sibility of interference, it is recommended that Y channels be used and that channels 1 through 11, 58 through 74, and 121 through 126 be avoided.
2.
On  RADIO-NAV screen, AA/AG and TR/RCV soft keys -Press, until AA and RCV is in inverse video.

3.
Wait .ve seconds for signal acquisition and lock on.

4.
On CSC panel, NAV B monitor control -Press.

5.
Check  for correct station identi.er in ear-phones.

6.
Navigation information will consist of bearing information only displayed on the HSI.

3.16.3.5 Normal Operation Air to Air Transmit/ Receive Mode.
1. Choose channel, or preset on NAV SELECT screen.
NOTE
Use channel pairings with a 63 channel separation between channels on the aircraft. For example, if the airborne beacon aircraft is operating on channel 15Y, the helicopter’s control must be set to 78Y.
In all TACAN systems there is the possibil-ity of interference from IFF, transponder, and DME signals when operating in the air to air modes. In order to minimize the pos-sibility of interference, it is recommended that Y channels be used and that channels 1 through 11, 58 through 74, and 121 through 126 be avoided.
When 2 aircraft are .ying in close proxim-ity, it is possible that a negative distance in-dication may be displayed due to the calibra-tion of the TACAN systems in either aircraft. This information will cause the dis-tance readings between 399.5 nmi, and 400.0 nmi, which correspond to distances between -0.4 nmi and -0.01 nmi, respectively.
2.
On  RADIO-NAV screen, AA/AG and TR/RCV soft keys -Press, until AA and TR is in inverse video.

3.
Wait .ve seconds for signal acquisition and lock on.

4.
On CSC panel, NAV B monitor control -Press.

5.
Check  for correct station identi.er in ear-phones.

6.
Navigation information shall consist of bearing, distance and closure speed to other aircraft, dis-played on HSI.

3.17 PERSONNEL LOCATOR SYSTEM (PLS).
The ARS-6(V)3 personnel locator system (PLS) provides the pilot with heading and distance information to locate survivors with a transmitting AN/PRC-112A(V) survival radio set. The PLS consists of a receiver/transmitter, an antenna switching unit a control display unit, an instrument panel display, and two antennas. The two PLS antennas are mounted on the bottom of the fuselage. The PLS provides heading information to any source of continuous wave UHF signals within its operating range. The unit operates in the UHF frequency range between 225 and 300 MHz and is tunable in 25 KHz increments. If the ID codes in the sur-vival radio match the ID codes being transmitted by the aircraft, a reply is transmitted from the survival radio. This reply is interpreted by the PLS, allowing calculation of the heading and slant range to the survival radio. The PLS can store up to 20 different survivor ID codes. The range error is less than 1% and the azimuth error is less than 64 de-grees with a .nal location accuracy within approximately 50 feet of the survivor transmitter. Angle to survivor infor-mation is displayed as a series of bars on either side of a bullseye, the bullseye indicating 9straight ahead9 to the sur-vivor. The quantity of bars to the right or left of the bulls-eye indicates the approximate bearing to the survivor. 2 bars to the left or right of bullseye indicate a 5° to 10° turn is required to line up on the survivor. Full de.ection of 8 bars indicates a turn of 45° to 90° is necessary. Power for the PLS is provided by the No. 2 dc primary bus through a circuit breaker labeled PLS.
　
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