best antenna for digital converter box

{"cid":"91200187","title":"MPEG2 ATSC Over The Air Digital Tv Converter Ota Flat Antenna Amplifier","imgUrl":"https:\/\/img.ismap.com\/nimg\/45\/9e\/e24802bc4de55f47d933a3690ef2-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"KINGTECH","Model Number":"ATSC Receiver Metal","Minimum Order Quantity":"1000","Delivery Time":"20-30days","Certification":"FCC, UL","Place of Origin":"China","Payment Terms":"T\/T or L\/C at Sight","Supply Ability":"500,000.00pcs\/Per Month","Packaging Details":"Factory Standard Package","Catagory":"Atsc Hd Digital Tv Converter Box Over The Air(Ota) Flat Antenna Amplifier","MPEG4 Decoder":"Support","H.265 Decoder":"Support","Dolby AC-3":"Support","EPG":"7days EPG","Software Upgrade":"Software Upgrade through USB port"}}

{"cid":"91220533","title":"Top Sell Flat HD Digital Indoor Signal Booster for Best Indoor Digital Tv Antenna","imgUrl":"https:\/\/img.ismap.com\/nimg\/51\/eb\/47bb72f9a4bc9c11a2f57f8f8d15-200x200-1.jpg","attrs":{"Price":"$3.12\/pieces 100-999 pieces","Brand Name":"yetnorson","Model Number":"ynx tv antenna","Minimum Order Quantity":"100 pieces","Private Mold":"NO","Place of Origin":"China","Type":"Indoor","Frequency Range":"VHF 174~230mhz\/UHF470~862mhz","Product name":"satellite amplifier signal booster best indoor digital tv antenna","Gain":"28dBi","Connector type":"IEC+F Male+ USB","Cable Length":"3m(10ft) \/5m(16ft) OrCustomized","Frequency":"VHF 174~230mhz\/UHF470~862mhz","VSWR":"1.5 Max","Antenna Color":"black","Certificate":"CE\/FCC\/ROHS\/ISO9001:2000","Material":"ABS","Impedance":"75ohm","Packaging Details":"one pcs one box of Long Range New Selling wireless strongest satellite amplifier signal booster best indoor digital tv antenna","Port":"shenzhen","Supply Ability":"2000000 Piece\/Pieces per Week"}}