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. Continue reading DUAL DDRR C0-Phased Citizens Band HF Antenna Array
As I own quite a few CPI CB Radio’s I decided I had better get a Stoner Pro40 to compare them as the internal PCB’s and components are very similar from photo’s I have seen.
I took a big chance on this one, # 322 (Which I like as my Postcode is 3223) but glad I did as it is as close to perfect condition as you will get in a 1978 model cb radio base station from the USA. Continue reading Stoner Pro-40 #322 SSB CB Radio Base Station
DIPLOMA II ROS WEEKEND-CB 27 Mhz by European ROS Club ?www.europeanrosclub.com ROS EUROPEAN CLUB, invites CB Radio and?amateur operators worldwide, to a ROS Weekend on CB-27 MHz CH#40 & #36 USB In order to acquaint newcomers and continue to demonstrate Continue reading ROS WEEKEND 27 Mhz April 24 2015 at 00:01 UTC until Apr 26 at 23:59.