Thanks Roger and for all the other replies. Found some. 73 Tom W7WHY _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@c
Hi All Will it hurt to have ladder line from 2 different antennas coming through the same hole to the shack? They will be practically laying one on top of the other. 73 and thanks Tom W7WHY _________
I want to feed a 17 meter delta loop with a 1/4 wave matching stub. Is it OK to roll this matching stub up into the choke? Thanks and 73 Tom W7WHY _______________________________________________ ____
Hi John I had a 3 element phased array on 40 and it worked great until the wind took it down. It was switchable in 6 directions and was like rotating a beam. Would like to get it back up someday. 73
Hi All I made a bad mistake and hooked the wrong coax up to my MFJ-259B and loaded 100 watts into it. Needless to say, it now does not work :-) Is there a way to use the MFJ-207 or '247 in conjunctio
Well, you ain't no slouch, youself, Jim! 73 Tom W7WHY Some more so than others. W4EF and Jim Lux are design engineers at JPL. W4EF worked on that robot that landed a few months ago on Mars. N0AX is p
Hi Wayne If you get any answers that aren't posted to Towertalk, I'd sure like to see them. 73 Tom W7WHY Hi I have used RG8 and RG11 to make stubs in the past. I need to make some 160 meter stubs Rea
If you live close to Portland, OR here's a chance for a free tower. 73 Tom W7WHY If you take down Bob's tower, all material on it is free. This includes a 48 foot tower, Telrex TB6EM triband beam, Hi
That is very good advice! On 40, I have a vertical dipole and a delta loop. Propagation changes, and what is louder on the dipole will be louder on the loop in a few minutes. 73 Tom W7WHY Use em both
Hi All I have a MFJ-989C tuner that hasn't been used for a long time. I need to clean the coil as it is scratchy when I move it. What is a good substance for cleaning the coil and wiper so it will ma
Hi All A few days ago I posted a question about cleaning the coil on my MFJ-962C tuner that hadn't been used in a long time. Found some stuff that works pretty good. I went to NAPA and got a can of t
Hi All I'm thinking of putting up a sleeve dipole for 40/20 made with 450 window line, like the one that was in QST. Can you weave some 300 ohm ribbon in between the windows - say like for 15 and 17
Hi All Been playing with an antenna here. Some time back I put up a vertical dipole for 40 meters. Worked OK. A little later I added a director about 15 feet in front. Today I put up a reflector abou
Hi Chris No, don't have any software here. Forgot to mention that all the elements are vertical. 73 Tom W7WHY Have you tried modeling the array and seeing how the model SWR reacts when you add reflec
One of the best things I've used - got it from an old telephone worker - is to smear a lot of Vaseline on the connections. I've had antenna connectors I've put Vaseline on be as shiny as the day I pu
Hi Steve That one has me puzzled. I have a loop on 20 and a beam. The beam is always much louder than the loop when pointed in the same direction. That isn't rx gain? 73 Tom W7WHY __________________
We use a Carolina Windom for one of our FD stations and I'm amazed how well it works. Yeah, I know it's just another wire antenna, but it really seems to work well on all the bands. I'd like to have
Interesting story. Kinda like my early days. My first novice antenna back in '54 was a 40 meter dipole about 15 feet high fed with telephone twisted pair. Bent 1 wire of the twisted pair and stuck it
Hi John I only see 1 copy here. Must be something in your provider. 73 Tom W7WHY I am receiving 2 copies of messages to the board. Am I entered twice as a member or have I requested multiple copies u
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