This new version of the pa0nhc microwhip antenna has these characteristics.New version, using modern 998 and bcx54 semiconductorsReal class circuit, clean reception without IMD.A connection.Coupling of broadband to receiver without TransformerTechnical specifications:Frequency range: 10 kHz-30 mHz: 150 watt-hours 12-15 voltsSecond order output cut-off point: & GT; +70 dBmThird order output interception point: & GT; +30 dBmMaximum output : over -15 dBWeight: 32 gramsPcb Size: Length(mm): 155 x 27Connector: bncFeed line: 50- coaxial cable, up to 100 metersPlease note:Each antenna can perform the performance allowed by its installation. Any active antenna can't work in the house It should be installed outside and as high as possible. Place this mini whip antenna PCB in the appropriate case of and install it outside the house. Perhaps on the shell, you can use a part of the PVC tube, which has a variety of diameters in the local store. Don't use metal shells It won't work there Material: PCBcolour: bluePackage Contents:2 x Antenna moduleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.