Na-ewebata ụdị TDJ-868-2.5B, eriri ikuku na-egbu egbu emebere iji kwalite ahụmịhe nkwurịta okwu gị.Site na ọnụọgụ ugboro nke 868MHz ± 10MHz, antenna a nwere arụmọrụ dị mma, na-eme ka njikọ na-enweghị ntụpọ na ike mgbama kwalite.
TDJ-868-2.5B's VSWR <= 1.5 na-ejigide mmekọ ihe mgbochi dị mma, na-ebelata mfu mgbaàmà yana ịbawanye arụmọrụ nnyefe.Antenna nwere ihe ntinye ntinye nke 50Ω ma dabara maka ngwa dị iche iche.