I was evaluating the simplicity of the feed system for the 8-circle tx/rx array (4 active elements per steered direction) compared to the 9-circle array (9 active elements per steered direction) in t
simplified elements...that is, direction the array is would impair the the pattern if they No. Not if unfed and allowed to FLOAT. This means you need a high impedance at the element. 8-circle and th
Or, pare it back further to a standard four-square. If land is not a limiting factor, you can always do a pair of four-squares to enhance the signal incrementally in the four additional sub-direction
You might want to ask K9DX and K4JA about that. I used the K4JA 9-circle, and it did a darned good imitation of a 2-3 element yagi. Compared to a 4-square, it was night and day. 73, Pete N4ZR _______
Also see: http://www.n6rk.com/7_hex_array.pdf which has more gain than the 9-circle and a much simpler feed system (to get 6 directions) and a little more complexity to get 12 directions: http://www.
the K4JA 9-circle, Compared to a land is not a to enhance the sub-directions. Hardly anyone think, versus a Pete, Perhaps something was wrong with the four square? An eight circle of proper dimensio
For contest applications, 2 or 4 dB are indeed, night and day. I perhaps should have mentioned that K4JA's 9-circle was on 80m, where the additional couple of dB meant a couple of layers of workable
An 8 compared to a 4 might not have a bunch more gain, but could have MUCH better F/B or F/R Beamwidth/directivity is going to be related to the physical extent, more than the number of elements. Wea
day. I perhaps where the additional well as better I'm not sure how much difference it makes on transmitting. 99% of the transmitting here in 160 contests is done on an omni-directional antenna that
day. I perhaps where the additional well as better I'm not sure how much difference it makes on transmitting. 99% of the transmitting here in 160 contests is done on an omni-directional antenna that
day. I perhaps where the additional well as better I'm not sure how much difference it makes on transmitting. 99% of the transmitting here in 160 contests is done on an omni-directional antenna that
I think I'll just put up a G5RV and CALL it a nine-circle antenna.... Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr@arrl.net Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901