Home |
Search |
Today's Posts |
#32
![]() |
|||
|
|||
![]()
On 8/16/2011 9:25 AM, Jeff Liebermann wrote:
On Tue, 16 Aug 2011 11:21:20 +0200, Helmut [email protected] --- -.dotat wrote: Thank you for the links, appreciate your help. Y'er welcome. However, I still don't have a clue what you're trying to accomplish. If you want super front to back ratio for a direction finding antenna, you need a wall, not a phased single wire reflector as in a yagi. Something like a dish or a panel reflector will work, but is probably not practical. As you discovered, the position of the reflector is very critical for maintaining the best F/B ratio. It's also very sensitive to frequency. You might be able to make it work with a flimsy tape measure, but it probably won't be very stable in the field. Permit me to offer another idea. Instead of direction finding by the peak signal, do it with a null. Exactly.. you can get very sharp nulls pretty easily. For simple antennas, there's usually an ambiguity, but you can resolve that by other means. |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
a little 4nec2 help? | Antenna | |||
FS: Vac Variables & ---- | Swap | |||
FA:MORE AIR VARIABLES + STUFF | Equipment | |||
FA: MORE AIR VARIABLES + STUFF | Boatanchors | |||
FA: 8 Air Variables + other stuff too | Boatanchors |