Home |
Search |
Today's Posts |
#11
|
|||
|
|||
Dish reflector
Dale Parfitt wrote:
"Art Unwin" wrote in message ... I made a helical end fed antenna that is inside a cone shaped reflector The reflector is made from 1/2" mesh steel with an aluminum foil liner and connected to the braid of the feed coax. No baluns are used, just direct connections. I was surprised to hear signals from the rear! I thought that a dish reflector prevented such signals getting to the receiver. So what can be wrong with the reflector or can signals get reflected back from the frontal area? Antenna is at a 40 foot height Any ideas as to what the fault could be? Regards Art I have no experience with dishes thus the question Note, the helical antenna does not protrude beyond the dish envelope. Art There is a lot of very important information missing here. What frequency are we talking about and what is the dish diameter? Do you have any idea as to what your edge taper is or sidelobes? Dale W4OP The last time he talked about it, it was "designed" to operate on the 160 meter band and the "reflector" was 3 meters in diameter. No, those numbers are not typos. -- Jim Pennino Remove .spam.sux to reply. |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Dish Network "500" dish with two LNBs | Homebrew | |||
Kenwood reflector | General | |||
Vet. with a reflector | Antenna | |||
Reflector for Hammarlund | Boatanchors | |||
Reflector for Hammarlund | Boatanchors |