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1  eHam Forums / Mobile Ham / Homebrew Screwdriver Antennas and the Turbo-Tuner on: May 30, 2007, 09:55:58 PM
tried emailing no5e and got an error message and the email was unable to be sent. I did find a company called Windevor that has aluminum tubing in 2-1/8" dia. for about $2.30 a foot. I emailed them. I don't know if they sell short lengths or not. I will find out though. All I need now is to find someone who will mill the pvc for me. I am constantly checking the hams in the areas that I travel through to see if I can find one who has a metal shop in their garage.
2  eHam Forums / Mobile Ham / Homebrew Screwdriver Antennas and the Turbo-Tuner on: May 30, 2007, 09:14:55 PM
Well, I think I asked at one point for my user name to be changed to my call and they said they couldn't do that. So then I tried to register a new account with my call as my username but it said I couldn't use my email address because it is already in use by someone.
3  eHam Forums / Elmers / Got a little problem. on: May 29, 2007, 10:42:19 PM
I don't have an 80 meter coil. I have the mast, the three way adapter and three resonators; 10m, 20m and 40m. I thought I had them all tuned but I am just chasing my tail. I have the MFJ256 analyzer.
Let's start over on this.
Which should I do;
1. mount each coil one at a time with the other coils NOT mounted and tune each coil with the whips that came with the adapter then mount them to the three way adapter and fine tune them?
OR
2. mount each coil one at a time with the other coils NOT mounted and tune each coil with the whips that came with each resonator then mount them to the three way adapter and fine tune them?
OR
3. mount all three resonators at the same time on the three way adapter with the whips that came with the adapter and tune each antenna?
OR
4. mount all three resonators at the same time on the three way adapter with the whips that came with the coils and tune each antenna?

Please answer 1,2,3 or 4
4  eHam Forums / Mobile Ham / Homebrew Screwdriver Antennas and the Turbo-Tuner on: May 29, 2007, 09:20:33 AM
Except for the installation thing it all might just be a mute point. I checked the kind of money that a machine shop wants to charge to do about 20 minutes worth of work to make the coil form and they claim it will take 2 hours of work and cost $100+. I have never worked in a machine shop but I know how lathes work and I can do what I need done. I am not smart but I know when I am being ripped off. I guess, if I can't find a person who owns a lathe that ISN'T a theif, I will just have to buy a hy-q or tarheel. Ya gotta love greedy capitalists.
5  eHam Forums / Mobile Ham / Homebrew Screwdriver Antennas and the Turbo-Tuner on: May 28, 2007, 08:33:29 AM
Yes, I agree about the mirror not being the best place to mount an antenna and the step is a much better groundplane but it's a toss-up between being able to communicate with people on the right side of you and getting a good ground. I talked with a guy who owns a tarheel and he a bracket mounted to the front of the hood on his PB that has a square plate as a mounting surface.   Think I may do that. Then I wouldn't have to worry about the length of the whip. just have to snake the coax but that shouldn't be a problem.
I still need an answer to the turbo-tuner compatability question.
 
6  eHam Forums / Mobile Ham / Homebrew Screwdriver Antennas and the Turbo-Tuner on: May 27, 2007, 01:16:01 PM
I plan on making my own screwdriver with Don Johnson's plans. I want to be able to get on 160M. I have a few questions.
1) The whip for 160M is 8 foot long. If I have the antenna mounted on my mirror then every bridge I come to will hit the antenna. How can this be avoided? I noticed on some pics of installation that it is mounted on the handle next to the door. Will the antenna work right sitting right next to the truck like that? I imagine that it would basically turn it into a semi-directional antenna to some extent.
3) Will I have to construct the antenna in a special way to interface with the Turbo-tune?
4) I met a truck driver who had a Hy-Q mounted on his mirror with a cap-hat and the whip was bent at 90 degrees pointing towards the back of his truck. Is this advisable and what are the  pros and cons to this?
7  eHam Forums / Elmers / Got a little problem. on: May 27, 2007, 12:41:14 AM
Got em all tuned for the center of each band. I can listen on all of them but can only transmit on a small portion of the 10 meter band. The only problem now is that If I go to the far ends of each band, the SWR goes go up when I transmit. The strangest thing happened. Many different times today I thought for sure that I saw an emergency so I keyed my mic to report it but it turned out that it really wasn't so I didn't speak, but I saw that my SWR was really high on the far ends of those frequencies. Good thing I didn't break any rules.
 I Overheard a conversation in Russian though on 40 meter tonight. Might have been Czech but it was pretty cool none the less. Can't wait till I get my screwdriver built so that I won't have the SWR problems.
8  eHam Forums / Elmers / Got a little problem. on: May 26, 2007, 09:43:20 AM
I realized last night that I shouldn't have even bought the things. I am going to be building a screwdriver and I can't go above 50MHz until I upgrade and until I can find a store that sells the General manual then I won't even bother testing. I used five by five to study for the Tech test but for upgrading purposes I want to know what the information means not just the answers. Anyone want to buy this stuff? All of it is brand new.
9  eHam Forums / Elmers / Got a little problem. on: May 25, 2007, 07:43:55 AM
They are mounted on the top bar of the mirror bracket. Sorry, John, I thought you were the one I was talking to.
I was wondering what those three whips were for. I thought it was a capaciance hat of some kind but I couldn't find holes for them. Now I know.
10  eHam Forums / Elmers / Got a little problem. on: May 24, 2007, 11:04:00 PM
I tried tuning them one at a time and also all together and I can't get the VSWR bellow 10:1. This kind of sux. I know that SWR isn't all that important, but if I key up with figures like this, I will smoke my radio, I just know it.
11  eHam Forums / Elmers / Got a little problem. on: May 24, 2007, 10:20:35 PM
Doug Richardson at Memphis Amateur Electronics has them mounted in this fashion on his pick-em-up truck and he says they work great. I just forgot to ask if he tuned each on alone and then mounted them all or if he mounted them all and then tuned them. He said that the radio will tune to the resonator that it needs for the band it is on. The plate that mounts on top of the mast is made to accept four antennas if you were to mount one in the middle. It is quite impressive. Can't wait for my screwdriver though.
12  eHam Forums / Elmers / Got a little problem. on: May 24, 2007, 09:43:35 PM
I need help tuning my hustler antennas. I drive a semi-truck and I just bought the Yaesu FT857D. To go with it I got a diamond 144/440 dual band. On the other side for a temporary measure till I get my screwdriver antenna built I got a hustler MO-4 mobile mast and the three antenna plate to go atop it. On that plate I mounted the RM-10, RM-20 and RM-40 standard resonators. Here is where I have the problem. Right out of the package I am getting an SWR reading of about 14:1 to 20:1 on the 10 meter and the 40 meter (very bad) but the 20 meter seems to be around 1.7:1 tolerable but I get get it better I think).
My question is; can I tune the antennas with all of them mounted on the plate or do I have to mount one, tune it then unmount it and mount the next one, etc:? And, will 9' of coax be o.k. to use?
13  eHam Forums / HomeBrew / Homebrewing a screwdriver antenna on: May 23, 2007, 09:50:32 AM
What about the plans for the tuning unit from QST? Any takers?
14  eHam Forums / Mobile Ham / Huge mobile antenna on: May 23, 2007, 09:50:04 AM
I don't think you are getting what I am asking. I don't want the telerana as a MOBILE antenna, I want to make it so that it is portable (maybe that would have been a better choice of words). I want to configure it so that I could assemble it and use it when I am stopped.
15  eHam Forums / Mobile Ham / Huge mobile antenna on: May 22, 2007, 02:17:37 PM
So a vertical or a screwdriver is going to outperform a telerana?
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