I have several 160 and 75 meter antennas. I'd like to be able to cover most og these bands with the least involvement from the shack after the initial set-up. I run QRO, so matching low impedance ant
Here's another approach, that you, as an engineer, might appreciate. http://audiosystemsgroup.com/PacificonSmithChart.pdf I replaced a lot of Ten Tec antenna tuners with coax and relay switching. 73,
Here's another approach, that you, as an engineer, might appreciate. http://audiosystemsgroup.com/PacificonSmithChart.pdf Now that looks Intriguing! I'd like to end up with an SWR no more than 1.5:1
The fan dipole on 75 can give much wider, usable areas. With SS amps I'd like to be able to QSY with all the knob twisting. Yes. It's easy to make wire spreaders by cutting 1/2-in PVC conduit into 18
The fan dipole on 75 can give much wider, usable areas. With SS amps I'd like to be able to QSY with all the knob twisting. Yes. It's easy to make wire spreaders by cutting 1/2-in PVC conduit into 18
I don't understand the problem with copperweld. I have three 160 meter quarterwave slopers and three 80 meter bent vertical dipoles using alumoweld that have been up about 40 years with no problems.
How much stress is on them? My antennas, and Glen's antennas, are flat top dipoles, up 100 - 120 ft between very tall trees that sway a lot in the wind, fed with 150 ft or so of RG11, with 100# count
On 7/24/2013 11:34 PM, Gene Fuller wrote: I don't understand the problem with copperweld. I have three 160 meter quarterwave slopers and three 80 meter bent vertical dipoles using alumoweld that have
I agree! Both here in south Georgia and in Virginia I had 80m dipoles made with copperweld wire. In both QTH's I had storms that felled the trees holding up one end of the antenna wire, come down dur
agreed, I use 10ga copperweld here for Beverages and inverted V's and L's and the only break I have had was at the top corner of an inverted L where it flexed too much. I have had ice and trees come
I also have never heard of OWL spacers being eighteen inches?? Where the heck did that come from? Typically 600 ohm OWL requires only about four inch spacing. Who uses open wire line these days? It w
On 7/24/13 8:59 PM, K8RI wrote: On 7/24/2013 11:34 PM, Gene Fuller wrote: I don't understand the problem with copperweld. I have three 160 meter quarterwave slopers and three 80 meter bent vertical d
As the saying goes: YMMV...! I have Yagi's for 40 through 6m, but for 80m I use 4" spaced OWL feeding the copperweld about 600 feet away from my house. The spacers for the OWL is made from plastic co
I have 600 feet of 450 ohm OWL to my 160 meter transmit vertical. I used to have 1000 feet of it coming from my old shack location that was farther away. 4 AWG stranded THHW aluminum on 5 inch center
Yes. If you ever have the opportunity to visit one of the vintage short wave shore stations still in existence you'll see a LOT of open wire coax line feeding rhombics. One typical form of constructi
As the saying goes: YMMV...! I have Yagi's for 40 through 6m, but for 80m I use 4" spaced OWL feeding the copperweld about 600 feet away from my house. The spacers for the OWL is made from plastic co