Identify please (German radar in US fighter?)

[Justo Miranda]

In this Douglas P-70 night fighter of the 419th NFS, crash landed at Piva-Bougainville by Lt Donald Dessert, the fixed quarter wave dipoles for azimuth receiving have been replaced by four german style “Stachel” rods. Can anyone identify which radar they belong to?

 

[Foo Fighter]

Still seems to be a variant of the UK AI MK IV to me, or have I missed something?

 

[archipeppe]

Still seems to be a variant of the UK AI MK IV to me, or have I missed something?

Yes, it is definitely an English AI Mk IV.

 

[EwenS]

The US built version of AI Mk.IV known as SCR 540. The 4 horizontal aerials in photo one were superseded by the fuselage array in the other photos.

US Night Fighter Radars of WWII

 

[Justo Miranda]

Sender or receiver?
It could be an experimental installation to save drag?