K40 K30 Magnet Antenna The K30 antenna is an antenna for those who want to get the most out of their magnet antenna and don't want a big one. The K30 offers the specifications you expect from K40 Electronics. The " Heavy Duty " magnet makes it almost impossible for you to lose this antenna from the roof of your car. Also, the K40 - K30 is very easy to adjust for SWR. Fixing the sprite just short of the bottom is enough, practice shows. Technical specifications of the K40 - K30: Suitable for all 40 channels 27Mhz Base loaded coil Steel antenna sprite. Length 90 cm Maximum power 300 Watt Diameter magnetic base 10cm Height magnetic base 7cm RG58 coaxial cable ( 95% waterproof ) Complete with PL-259 plug Swr 1.1.2.5 Antenna CB Mobile, MagMount, 300Watt, Whip 90cm, Height MagMount 7cm. Specifications: Consistent SWR across all 40 channels Basic loaded coil Stainless steel whip 90cm Radiused 180 degree tip eliminates the need for ball to reduce static buildup Heavy-duty MagMount, 10cm diameter Coaxial cable 4.5mtr with PL-259 connector Handles Power up to 300 watts Made in the USA