Re: Topband: 160 meter L

Doug, what you describe is similar to what I have been using. I first installed a 80m 1/4 vertical. Its free standing tapered aluminum 3" to 1/4". Mine is over 60 radials about 65 in length. There is an inductor across the feed point that acts as a static bleed and helps with matching on 80m.

Re: Topband: 160 meter L

Tree and Rick Pretty much the same way a "Battle Creek Special" vertical is configured. Vertical tubing portion to 80 m trap and in the BCS, a 40m trap along the way. From top of 80 m trap, a horizontal wire which completes the 160 m (Inv L) section. And Tree is correct in pointing out the

Topband: FW: 160 power

Hi topband lovers, The basic concept that explains how power and signal to noise ratio works on low band is very simple. On high bands we need the signal to bounce back to the Earth. Without ionization, the signal does not reflect back and power does not matter, 1w 100 w or 10 Kw won't make the

Re: Topband: 160 power

Mike. . .I would suggest you work on your receive capability first. There's nothing more obvious (and embarrassing) then to have people calling you that you can't hear. Beefing up your transmit capability is easily done and can come later. BTW, a good TX array can also significantly help

Re: Topband: 160 power

I don't disagree. I guess my main point is that the lack of Rx/Tx "balance" in my station is so obvious that the improvement in Rx is by far the most important. Once I improve my "ears" with the Rx array it will be interesting to see what I would need to do next, and whether further

Topband: duo-band 80/160 inverted-L

Thanks to a big oak tree, I have used a homebrew 80m trap (large diameter B Miniductor and high voltage doorknob caps) at the top of my 80m quarterwave wire vertical, and a wire at the top of the trap sloped down to a tree by the house to achieve 160m resonance. I have two 60-foot elevated radials

Re: Topband: 160 meter L

At least on ham that I know of who has done this is Wayne Mills, N7NG at his home station in Wyoming. Seems to work very well on both 80 and 160 meters. Don't skimp on the components used for the trap however. Lots of high voltages and currents involved. Tree N6TR On Wed, Mar 22, 2017 at

Re: Topband: 160 meter L

Another approach could be 5/8 WL vertical antenna for 80 (65' vertical and the rest horizontal), with 800 pF variable capacitor in series shortened by relay on 80, and relay opened on 160 so you could tune such a 3/8 WL L on 160m. Didn't tried by myself but some of my friends use such a aproach

Re: Topband: 160 meter L

I think a better option is to mount a trap at the top and run a single horizontal wire for the 160 portion. This way you wouldn't be concerned about the 80 meter vertical coupling into the 160 antenna, and the complexity of switching your feedline between two antennas. I know of two hams who

Topband: 160 meter L

Guys I have a 75-80 1/4 wave vertical. It has 20 1/4 wavelength radials. I would like to run an inverted l up the radiator and horizontal for the rest of the radiator both antennas fed with same feed line I would double the number of radials and also double the length. Are there any problems

Re: Topband: 160 power

Mike says: I wonder if 1500W would make a difference when I can hear better. I doubt it. What? Mike, 1500 watts is 5 db more signal than you have now. If you can hear better, such that you aren't getting out well enough why would you think 5 db more wouldn't benefit you? 5 db is HUGE.

Re: Topband: CQ 160M Score Database Now Live **ACTION REQUESTED**

Many thanks to all the people that made this possible!! 73, Jorge CX6VM/CW5W Enviado desde mi iPhone > El 22 mar. 2017, a las 08:36, Randy Thompson K5ZD escribió: > > I am pleased to announce that an online score database of all entries for > the CQ 160M Contest is now

Topband: CQ 160M Score Database Now Live **ACTION REQUESTED**

I am pleased to announce that an online score database of all entries for the CQ 160M Contest is now available and live on the web site. There have been 66,311 entries since the contest first started back in 1960.  I must thank a group of people that are most responsible for making this new