CB Beam Antennas Archives - CB Radio | Citizens Band Radio https://cqdx11.com/CB-Radio-DX/cb-radio-antennas/cb-beam-antennas/ CB RADIO Citizens Band legal channels, Freeband CB Communications for CB Radio Operators Worldwide Sun, 10 Jan 2016 03:47:40 +0000 en hourly 1 https://wordpress.org/?v=6.7.1 https://cqdx11.com/wp-content/uploads/2013/10/earth_cutout_spinning-36x36.gif CB Beam Antennas Archives - CB Radio | Citizens Band Radio https://cqdx11.com/CB-Radio-DX/cb-radio-antennas/cb-beam-antennas/ 32 32 DUAL DDRR C0-Phased Citizens Band HF Antenna Array https://cqdx11.com/cb-radio-antennas/dual-ddrr-c0-phased-cb-antenna-array/ https://cqdx11.com/cb-radio-antennas/dual-ddrr-c0-phased-cb-antenna-array/#respond Sun, 10 Jan 2016 02:39:34 +0000 http://cqdx11.com/?p=29236 In layman's terms a DDRR is just a short vertical monopole (vertical post) attached to a transmission line tuned by a reactance (ring plus vacuum capacitor). The reactance of the capacitor is transformed by the transmission line and will under specific conditions (length, value of the capacitor, etc.) make the vertical post resonant. Slight variations of the capacitor will lengthen or make the transmission line "shorter" and allow tuning of the antenna on a certain range.

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]]> https://cqdx11.com/cb-radio-antennas/dual-ddrr-c0-phased-cb-antenna-array/feed/ 0 CB Radio Antennas at Barracuda Base https://cqdx11.com/cb-radio-antennas/cb-radio-antennas-at-barracuda-base/ https://cqdx11.com/cb-radio-antennas/cb-radio-antennas-at-barracuda-base/#respond Sun, 04 May 2014 12:53:12 +0000 http://cqdx11.com/?p=114 The DDRR looks like a piece of rubbish and it is, it just does not perform like it looks. It performs EXCELLENTLY!! DDRR means Directional Discontinuity Ring Radiator

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