Today I built a coaxial dipole or flower pot antenna for 144 MHz. Essentially a length of coax with part of the shielding stripped and then a length with shield intact before using a series of turns to act as a choke. The silver part was an attempt to get it working at 430MHz as well but I have failed with that one. Issue with the aluminium tape used I think. Works well on 2m band at least. A nice cheap loft antenna! I used measurements from g6ohm.webs.com/antennadesigns.htm.
Interested in electronics, communications and engineering as a whole really. I have a full amateur radio licence with call sign M0SUD. Based in the UK. Also a sumo fan.
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko