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Try using the AM position for relative S meter readings. Your radio's S meter does not do what you think it does on FM due to the I.F. limiter. The change between H and V pol should have shown about 17-20 dB. You got 40. Just about all hammy hambone FM rigs have this problem. Thanks for...

Pictures?

Download M-squared rotor manuals to see the coax run mentioned. They amplifiy pulses in the controller A long run of plain wire has poor noise rejection. If you know anyone with a M-Squared rotor and 500 feet of unshielded cable that doesn't lose counts I'd like their contact info. If you get...

Sorry, I've never had the opportunity to curse at a Spid rotor.

Keep in mind the reed switch pulses degrade with long cable runs. Some manufacturers suggest using coax for the counter wiring. M-squared makes some tough rotors too. I've been burned by many different rotors. I installed an M-Squared for a customer in a US Tower 106' telescoping model. The...

One way to compare performance with yagis is to turn them exactly 90 degrees from the signal and look for the depth of the null. Larger ones with a straight guyed boom can do over 25dB received signal strength dip.

I thought it was one of the evil admins.

I'm going to sue WWRF because it's been over 8 hours since anyone has decided to argue with me. I think Shioda might actually work for the FCC.

Picture the ugly balun as an unknown black box with two input terminals and two output terminals. Now compare the magnitude and phase of all four terminals with unbalanced R.F. applied to the input TO THAT OF a so-called 1:1 current balun. Result will be exactly the same at frequencies...

Yo Mack. Did you build the knife switch thing yet so we can put this to bed? Maybe I missed it if you posted elsewhere. teh tnx.

It's OK Doc. I'm not running a class on AC theory:whistle: Hams aren't expected to understand everything. It's only a hobby. We can mysteriously create and destroy energy in the name of proving an ugly balun can't work. Physics is a fake and ugly baluns are only used in hundreds of...

Yes. This is a good solution IF the load is similar to the feedline impedance. Otherwise things get complicated. Force 12, a respected antenna manufacturer among hammy hambones uses this trick on some of their products.

You are right but it was nice to see him peel B.S. residue away. Have you ever seen the guy post any incorrect information? The only thing I disagree with the guy on is tower base construction. See all the new "CB" people harassing the regulars over there?

Bring back HFRF. A REAL engineer.

Antennas are reciprocal as mentioned. Unless something heats up due to conductor losses anything done to improve transmit will improve receive by the exact same amount. My feeling is the longer boom length antenna modeled was not maximized for forward gain. There should be a little more...

If you choke the current off the outside of the shield you have a 1:1 BalUn no hocus pocus necessary. Output of the coiled coax WILL be balanced. It it were anything other than balanced there would have to be...

Be careful what you wish for.

Since unbalanced transmission line has R.F. current flowing normally on the center conductor and the INSIDE of the shield woundn't a device that prevents R.F. current flow on the outside of the shield ALSO serve as an unbalanced to balanced transformer? If not where is the current flowing? The...

Put up 100 feet of tower with 3 levels of guys. Use ring rotors for the antennas. No mast to mess with. Use the tippy top for VHF and don't forget to use it as a center support for the low band doublet. Do you have the original tower swivel base? Guyed towers are dramatically stronger when...

Besides the limited useful frequency range of a coax choke and the much higher power required to saturate it what's the difference between an "ugly" coax choke and a 1:1 balun???