Originally Posted by
Jumbo Driver
Absolutely correct,
mbcxharm, but not very helpful in this case, as both callsigns are listed for this frequency, see
AD 2-EGNX-1-7
JD

Exactly, so it doesn't matter - call them one or the other, either is a published callsign and you get a response. If they respond with the other, then you can change the callsign you have used.