Eddie, the first test with & without radials was 89.7dBm without radials 90.2 with radials,
The 3/8 cone version did show 3.6dBm higher signal ( not gain ) & 3dB+ improvement in SNR,
that's significantly more than Vortex claim for the increase in low angle gain,
since the tests were not done at the same time & only 1/4wave [USER=18308]@50mhz[/USER] above ground
i put no stock in the 3.6dBm advantage but its made me interested enough to build another with 1/4wave radials to do more testing,
Both me and Nav think there was likely an issue with the first test antenna,
i hope there was a fault, i don't want the 3/8 cone to perform better,
3/8 radials on 27mhz are a floppy pita even using the stupid duty Vortex tube,
i sorted more old vector parts today, they need a good clean & tubes slotting for hose clamps,
hub needs drilling & tapping, grub screw is siezed & smaller than later versions, hoop & gamma need cutting down.
