can anyone confirm if this device is operational at present for pythons or any other MUed formation?

@Vishnu Nath - That red color Antenna is installed to the locomotives for wireless control of multiple unit locomotives.
It will help to eliminate the use of MU cable used between locomotives to control multiple units. The whole system is known as...

@Vishnu Nath - That red color Antenna is installed to the locomotives for wireless control of multiple unit locomotives.
It will help to eliminate the use of MU cable used between locomotives to control multiple units. The whole system is known as LOCOTROL.
It will help specially the python rakes which have locomotives in the middle of the formation.
I have seen this device from 2010 onwards on WDM3D locos, but I don't think that these antennas are in regular use as MU cable are still in wide spread use.

Initial loco monitoring system modules made by Medha used a whip-type antenna. However they feel out of favour because they were thought to infringe on the normal SOD and were replaced with this design as well. There is a MLY WDG3A pair which have the...

Initial loco monitoring system modules made by Medha used a whip-type antenna. However they feel out of favour because they were thought to infringe on the normal SOD and were replaced with this design as well. There is a MLY WDG3A pair which have the same antennae for distributed power control trials in SC-Wadi section. I wanted to confirm on what these antennae were for but there wasn't a LP/shunter nearby.

i saw this very thing on KYN WDM3Ds and when enquired with the LPs they said it's remote diagnosis of locos! a new trial carried out MEDHA!

Can any body please elaborate on the exact use of this device ? I have similar red color antennas on LDH and TKD diesels also, that too old ones.