Joe, It's been a few years, but Compliance Engineering used to sell "Roberts Antennas" - Telescoping dipoles with coax baluns. The telescoping elements were adjusted (by hand) using a tape measure. We used to mark a standard inch tape measure with a permanent marker for convenience. They also sold a preamplifier for use with the antenna. They published plans in their magazine for those who would build their own. Construction is fairy simple except for machining the phenolic parts. I imagine it could be done using woodworking equipment if you had to. Perhaps Jon Curtis might know who to contact? Scott Lacey
> -----Original Message----- > From: [email protected] [SMTP:[email protected]] > Sent: Wednesday, January 19, 2000 8:53 AM > To: [email protected] > Subject: Looking for tunable dipole antenna. > > > Does anybody have any idea on where I can purchase a set of dipole > antennas > that have tunable baluns? I need them for performing pre-compliance > antenna > gain tests on some of the antennas that are used on the various Racal > handheld radios. The frequency range I am interested in is the 30 MHz to > 1 > GHz frequency range. I am interested in either used or new antennas. I > had > a set of them about 20 years ago but don't remember whether they were home > made or something we purchased from some manufacturer. If you have any > ideas for a source please let me know. > > Thanks, > Joe O'Banion > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). > --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
