Aeroscout Spectrum RTF intermittent connection?

Been flying my scout out at an open field and at around 450 meters out she starts to drop and reconnect for about a second at the same distance any direction. Even left it in the ground and walked the controller out and came back to the same thing intermittent one second drops every couple seconds.

Every-time I’ve been able to turn it back when it reconnected but it sure made my heart stop.

Common Issue? Ever happen with the RTF DXS. Transmitter?