I want to have a 100ft 45G installed on my new property. It will hold JK Mid Tri 40 on top. I plan on adding a Yagi with a swinging gate at lower level later, and perhaps shunt loading for 160 and 80
I am getting JK Mid Tri 40 next month so this discussion is interesting. Regarding F/B, one question is how to measure it across the band to see whether reality reflect simulation. I erected Spiderbe
The difference on signal strength between a large pipe as and 18 ga wire is likely a fraction of a db. So the design of the pole is for stability and ease of erection not performance. The performance
I use crimping for a few months. It revolutionized my attitude to cables. When I need a cable of random length, I just cut the desired cable length from a spool and make connectors on site. For lmr24
I am getting JK Mid Tri 40 installed tomorrow on a 100ft tower. I have questions about shunt feeding on 160m. Scott K9MA has sent me lots of information on his shunt feeding of Jk Mid Tri (not 40), a
The simplest design by FAR for 2 band dipoles is folded skeleton sleeve made of ladderline. See links to QST article in http://www.highonsolder.com/ham-radio/folded-skeleton-sleeve-antennas/ I use on
I bought a 40m old beam that needs to be dismantled. With screws out the elements do not move. Any idea what to do? Ignacy, NO9E _______________________________________________ ______________________
Thank you for suggestions how to dismantle an old 40m beam. Will try to do it next week. I am thinking of installing a 4 square for 80m. Either regular or K8UR style with vertical dipoles attached to
Does anybody has 4 sq with vertical dipoles K8UR style, with the same tower used as shunt fed 160m vertical? I am trying to decide where a balun (or transformer) is needed. An automatic decision woul
The goal is to have 4 square for 80m with vertical dipoles a la K8UR, without compromising the performance of 160m shunt feed on the same tower. My tower is 100ft. If vertical dipoles have baluns at
Vertical performance greatly depends on soil conductivity and terrain. By reading many articles without good background you will be greatly confused. Whatever you do, I suggest you try to put a tempo
I shunt fed my 100 ft tower on 160 and I am thinking of 4 sq for 80m. What geometry of radials would make both 80m and 160m efficient? Normally, shunt fed 160 would need many radials around the tower
My 100ft 45G was installed with 3 sets of guy wires. The top 2 are Phililstran and the bottom ones are EHS but with the top insulated from the tower. I tried shunt feeding the tower for 80 and 160. O
A tower is shunt fed for 160m and will be used to support 4 sq for 80m. A question is whether the radials systems for 160m and 80m should be strongly connected, weakly connected or disconnected. AC0C
It may be worth to point to a commercial solution: RX8-2 from Green Heron Engineering. 8 inputs to 2 inputs, with wireless switching and 12V supplied by DC injector. So just 2 RG6 cables to the unit.
Does anybody make swinging gate mounts? I need one for 45G. Ignacy, NO9E _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTa
I have many dipoles attached to tall trees, all attached without insulators. All fixed with a block, and a bottle of water as a counterweight. I mostly use 1/8 inch Dacron. I tried 30 lb fishing line
I had all the mentioned dilemmas and have some answers. But they are specific to GA, some 100 miles NE from W8JI. My new vacation location has JkMidTri40 on a 100' tower. Works pretty well so 40-10m
N6LF's experiment showed that 4 elevated radials did as well as 60 ground radials but his soil had good conductivity. In average soil the elevated radials can be 5 db down - see ON4UN book. Ignacy NO