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"L" (1820mm) is what the two sections are set at. Overall, the antenna should be just over 18 feet in length. The 24 feet is what it will be mounted above ground. If I go by Sirio tuning directions with "L" at 1820mm, I should not have to trim the top end of the wire because 27.205 is the...

I ordered the Gainmaster half wave today. Will definitely guy it like Sirio suggests. Going to go with the 71.6 inches(1820mm) sections, and hopefully it will be good. It will end up 24 feet above ground.

Excellent explanation Riverman. I know exactly how to do it now. Thanks

I understand setting the length of the sections. What I don't understand is why it says to trim the excess coax. "Insert part 7 on cable until it stops." Does the cable go all the way through part 7, or does it have a stop? I am thinking the cable goes all the way through part 7, and then...

Yes CB is constantly buying! But radio is my only hobby, and I enjoy it. Learning about all stuff radio is interesting to me. Not sure where a good quality choke would be installed on your setup. I just know what worked for me on my antenna system.

Twist them up, and tin it. If you are melting copper, yup the heat is way too high. Even copper coated aluminum should not melt even close to the melting temperature of solder.

Buy yourself a good line isolator/choke/balun. In the past, I have had that to happen. All the power was not going out the antenna, and the coax was radiating too. Bought a Palomar Engineers Maxi-Choker 3K that fixed the problem. It was installed about 8.5 feet down below an Imax antenna...

Was going to post a "Come on man", but after reading the above, it's an attaboy!

Let me back up over the weight of this antenna. Don't want to misrepresent. Took it to UPS, and they weighed the box with all antenna parts inside. It weighed 10 lbs. 11 ounces. It's a very big, long, and thick corrugated box. I would estimate the box would weigh at least two pounds. That's...

Four big capacitors for a two transistor amp?

Hygain Penetrator is going back to DXEngineering. It will not tune period even after installing the base insulator the correct way. SWR stayed the same. Also, all four radials would not lock up good even with double clamps. I think that's the problem. There is no way this antenna weighs...

Just put one together yesterday, and it won't tune worth a dang. 22 ft 4 inches was the best SWR at 5.8 on channel 1. Tuning it with a RigExpert. Finally found this thread, and the base insulator is installed upside down from the factory. Hopefully, once I get the base insulator changed it...

Dang that's awesome. One V-Quad mounted 12 foot above the ground works very good. I know three would be awesome!

NPC mod that can be turned on and off plus all the other features. And I love the styling. I want one now!

I will be on Saturday for sure.

Even the crappy zinc coating stuff rusts way too fast. Apparently, they are using the thinnest coating possible. Fortunately, I can still get hot dipped galvanized hardware from the local hardware store that lasts for years and years. On the Imax I just installed recently, I used hot dipped...

To stay on topic. I am talking about why they would recommend lengths of coax that are half wave multiples. Not about some mistake in a patent. And, no, I don't believe every thing I read.

Went to Bojangles last week, and a 12 piece family was $37.99 plus tax which came out to be $40.65. Eight piece family was $27.99 plus tax. I drove off, and went home, and made sandwiches.

Just wondering why Avanti Specialists would recommend in their instruction manuals to use 12 foot multiples of sold dielectric coax(RG213), and 14 foot multiples of foam coax(RG8) if it did not matter? Snip of a Moonraker 4 manual.

Quad 6 for $218. Lincoln 2+$210. Free shipping. Thanks for the heads up!