QUESTION ABOUT LORA WM1302 CARD FOr PROFS

HI
i have one radio card WM1302 and I plan to use it without an antenna and am afraid that mabey this could lead to burning out the card.
so is there is anything or connector or terminator I can put instead of an antenna and terminate the transmit power
or do you think I can use it with an antenna and no need to worry?
Card information :

https://wiki.seeedstudio.com/WM1302_module/

thanks and regards for you help