The frequency 621 KHz was the suggestion of Grigoriopol to exchange/replace 999, but now at 18.15 h UTC on 621 are usual Arab/Iran and not TWR.
TWR on 999 used 500 KW, but now 1413 is 1000 and 999 with just 500 KW, so for TWR is only 150 KW used by Radio 1 from Tiraspol will be ?
Rumen Pankov to MWlist iog (2022-04-08)