Sirio Antenna Tornado27 Sirio Tunable 10M &amp; Cb Base Antenna<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Base station antenna omnidirectional high power handling capability whip equipped whit waterproof jointing sleeve made of aluminum alloy </span></li><li><span class="a-list-item"> Type: 5/8 λ ground plane frequency range: tunable form 27 to 30 MHz impedance: 50Ω radiation (h-plane): 360° omnidirectional polarization </span></li><li><span class="a-list-item"> Gain: 1.2 DBD， 3.35 DBI bandwidth @ SWR ≤ 2: ≥ 1300 kHz SWR @ res， freq.: ≤ 1.2 @ 27 MHz </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41yuaCn2DNL.jpg" noproxy>