Other Items from HD19503-04 HD19503-04 (RP TNC Male to N Male; LMR 195) - RP TNC Male to N Male; 4-inch Pigtail.19dB loss per foot. HD19503-018 (RP TNC Male to N Male; LMR 195) - RP TNC Male to N Male; 18-inch Pigtail.19dB loss per foot.