Indiscretion, but the existence of transmission is going to be known by the foe anyway. It can be and is monitored.
Wiki on EAM
Wiki on High Frequency Global Communications System (HFGCS)
About 3,600 U.S. service members will partner with Jordanian military forces in Jordan April 15-26 during Exercise Eager Lion 18, one of U.S. Central Command’s premier exercises, Centcom officials announced today.
Eager Lion is a major training event that provides U.S. and Jordanian military forces the opportunity to improve their collective ability to plan and operate in a coalition-type environment.
One time ... Qx being on duty at the comm center in Taipei at the HICOM desk ... The ChiComs tried to assume net-control’s call sign and take over as net control. They were instantly caught and left in the dust as we changed frequencies. Guam was probably net control’s location.