What are these 4 things on the F-16 nose cone?

[ThePolishAviator]

I'm guessing they are related to the airflow over the canopy but they also aren't present on every F-16.

 

[jstar]

What are these bars on an F-16's nose?

I've always wondered what the purpose of these "bars" on the nose of the F-16 (and some other military aircraft) are. Are they sensors (if so, what kind)? Are they lightning strips? I can't

aviation.stackexchange.com

These are antennae for the IFF (Identification Friend or Foe) system. IFF is a system to help distinguish friendly aircraft from unfriendly ones.

This particular antenna arrangement is used on only a couple of F-16 models. The first was the F-16 Air Defense Fighter (ADF) version. This model was converted from the F-16 Block 15 for use as a fighter interceptor for the US Air National Guard. A total of 271 F-16A and F-16B aircraft were upgraded to this standard between 1989 and 1992. One of the modifications made during the conversion process was installation of the Teledyne/E Systems Mk.XII Advanced IFF system, given the designation APX-109. This system included four antennas, often nicknamed "bird slicers," placed in front of the cockpit canopy with additional antennas on the bottom of the inlet.

 

[sferrin]

Bird slicers.

 

[Apophenia]

What are these bars on an F-16's nose?

I've always wondered what the purpose of these "bars" on the nose of the F-16 (and some other military aircraft) are. Are they sensors (if so, what kind)? Are they lightning strips? I can't

aviation.stackexchange.com

These are antennae for the IFF (Identification Friend or Foe) system. IFF is a system to help distinguish friendly aircraft from unfriendly ones.

If these are for the Teledyne/E Systems Mk.XII Advanced IFF AN/APX-109, how do they differ from the antennae for the Hazeltine AIFF (AN/APX-113(V), AN/APX-125(V), or AN/APX-126)?