I can't find the Vertical from DX Engineering. If you can send me a link it will be great. One solution might be top hat vertical, similar with http://dl2kq.de/ant/3-1.htm . Not sure how much power is lost in the matching unit L1, C1.
I would love a Waller Flag too. Imposible to buy one from here (too expensive) but I might wanna try build one. Preamp will be the biggest problem. Petronel YO8SEP / YP8W On Mon, Dec 19, 2016 at 9:30 PM, W0MU Mike Fatchett <[email protected]> wrote: > Check out DX Engineering. They sell a vertical that uses 3 top hat > wires. Sloping back down is ok. For 80/160 you need to stop the 80m > energy with a coil/trap My 80 uses a very fast taper and the top is only > 3/8 inch or less so It cannot support a coil or t wires. I probably should > have planned that out better. I was also going to try to phase two 80 > elements over time but that will not happen any time soon. > > With all the metal in the yard the AY loop may not work very well. Waller > Flag on the roof maybe. I would love one. > > W0MU > > On 12/19/2016 12:24 PM, Petronel Postolache wrote: > > I can try to put a 21-22m (68-70 foot) telescopic aluminium pole, made > from pipes 2" to 1" diameter. > It will be a bit too long for 1/4 on 80m. I can put a T top hat or run an > InvL, but probably need to slope it from 70 foot to about 40 foot. What > will be better ? and will I be able to match/use the antenna on 80m also ? > > About K9AY, I understood that the loop is influenced by close metal > objects, and the property is full of wire fences, vineyard rows and other > "metal" structures. That's why i was thinking about using some flag/loop at > 10 feet or more above ground. > > 73, Petronel > YO8SEP > > 160 and 80 will be difficult. Can you get another vertical up about 60 feet? > You can top load that with a trap for 80 and have "t" wires at the top > that also act as guy wires. You can also bottom load for 160 and maybe > that will be good enough for you. Radials whatever you can do will help.An > Inverted L with about 50ft of vertical will work ok....If you can keep > the horizontal end up in the air around the same height or more. It > doesn't sound like you have any tall trees to work with.For receiving I > have been very impressed with a K9AP loop. 25 ft up and about 15 feet out > at the corners. It does not take up much space and you can reverse the > direction easily with a relay. A flag or pennant will work too. You can > never have enough rcv or xmit antenna! HI! > > Welcome to the club! > > W0MU > > > > _________________ Topband Reflector Archives - http://www.contesting.com/_topband
