Today may be the last day we hear AIR Mumbai 1044 kHz (100 kW) and AIR
Kolkata on 1008 kHz (100 kW) in AM Mode. From tomorrow 14 Nov 2020
these channels will change over to PURE DRM.
These channels along with AIR Chennai 783 kHz (20 kW) & AIR New Delhi
1368 kHz (20 kW) both of which that had already changed over from AM to
Pure DRM mode some time back will operate continuously for 22 hrs. in
Pure DRM at 5.00 pm to 3.00 pm IST (ie 1130 to 0930 UTC) with 3
program channels from tomorrow.Note: The following channels of AIR from these cities will however
still be available, on AM Mode on MW:Chennai: 720
Kolkata: 657 & 1323
Mumbai : 558
New Delhi : 666 & 819The above channels (except 1323 kHz) are in operating in Simulcast Mode
ie both in AM & DRM modes.--
Jose Jacob, VU2JOS
http://www.hard-core-dx.com/article.php?story=20201113141501137