I have 41 years experience in stacking 2, 3 and 4 Yagi's high. After many hours behind the HFTA and NEC model engines - then putting Yagi's up in the air and using them for many years here at K3LR -
Tim, As I remember after driving by your QTH on the interstate more than a decade ago, you're in "flatland." Right? I'm asking to help clarify for others the applicability of your experience to their
Hello Jim: Not flat here. I am on a hill - but not on top - I am down from the peak. Slopping toward Europe and Japan with a quick 200 foot drop off once you get by the north side of Interstate 80. h
Tim, Awe inspiring. I can't begin to imagine the engineering effort that went into the design of the whole smoosh! Curious how the neighbors were dealt with when you started this effort back when. Wh
These are logical stacking distances and will definitely work well for most stations. Most of us do not have dedicated towers for each band and we have to adjust the spacing and heights to clear guy
Author: Tom_N2SR via TowerTalk <towertalk@contesting.com>
Date: Wed, 10 Aug 2016 13:46:54 +0000 (UTC)
I used to operate at N3RS, who has 5/5/5 on 20, 5/5/5 on 15, and 5/5/5 on 10. I forget the specific stacking heights/distances, but IIRC, they are 20: 37/77/117 feet, 15: 47/77/127 feet. 10: 25/5
30/60/90 looks good in HFTA based on "no nulls" in key directions for most areas over flat ground - particularly on 10 and 15 meters. However, it is not really good on 20 meters. Similarly 50/100/150
It's been done. The 20m 4-stack at KC1XX can be switched by combination of antennas or by angle (when all four are selected.) Designed by K1GQ. 73, Dick WC1M How does this work? Is it only used occas
K9LTN spent a huge amount of money to build a frame with six SteppIR antennas that could tilted to change the radiation angle and it also rotated. As far as I know this system never worked. John KK9A