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OK. I see what you are trying to get across on single point. You seem to want to get some snapshot of time mixed in there. Probably because that helps seeing power delivery like RMS really is. This whole idea quickly runs into calculus and integration. Basic mathematics cannot be applied. You...

So how do you measure your 1500 watts P.E.P. in order to comply with FCC rules when using ssb? What is an instantaneous time period? Consider the RMS value of a square wave verses a sine wave an an example of why simple math won't work with or without time involved.

It depends on how hard it hits the overpass.

If you leave the 2 meter antenna vertical make up a mount to put the entire antenna out in front of the mast. That mast is currently in the same plane as your elements and will ruin the antenna pattern. When you start adding more mast and you will it can be guyed to the four corners of...

I love BalUns and use them every chance I get. W8JI applied to extend the patent on what looks like the BalUn used at an old TV tuner. Interesting to say the least. Baluns are great. I can see 3 of them from here and I'm not even home yet. I'll bet this sentence I'm typing is coming...

When a 300 ohm balanced line is connected to a 50 ohm load the balanced line acts as a transformer. There will be a 50 ohm load presented whenever the 300 ohm line is an even number of electrical quarter waves. That's why it's curious that he didn't find a flat match somewhere. If...

OK. I read the article which is basically a proof that a G5RV can work almost as well as a dipole for each band as being argued on QRZ as we type. Owen suggests trimming the balanced feedline for exactly an electrical half wave. That means that feedline is not performing ANY matching...

A simple formula cannot be used to convert between P.E.P. and average values on complex waveforms such as voice ssb.

VK1OD is a sharp cookie. Nowhere does he say to rely on a mechanical meter for accurate measurement other than the quote below. What he does say is to use a peak hold circuit for peak power readings. He also said: <These instruments are calibrated on a steady (unmodulated) carrier, and are...

While that sounds all proper and good the problem is the ham lands up learning NOTHING about electronics in your process. Part 97 stipulates amateur radio's very existance is to provide a technically qualified pool of operators among other things:)

The low VHF TV frequencies have not been vacated. There are a few low V DTV stations still using that spectrum. Channel 51 and up were vacated and sold. If the harmonic situation returns it will have a much different flavor. The stuff will probably just quit working with little or no...

Can you post a linky to the place you found that? Dunno why a resonant feedline would be used to feed that antenna. Resonant feeders were popular before the use of coaxial cable. The feeders themselves were not resonant but their length was manipulated to present a non-reactive load to the...

True about harmonics not being an issue due to cable TV and other changes. Harmonics are however still a big issue where the antenna no longer acts as a load for them. Feedline radiation is alive and well in many of these cases. Time to make a thread of everything it takes to make a...

I've seen the local VEs here purposely hold up someone's paperwork because they know them from the CB. Kinda stupid because they processed other paperwork from the same sessions in a timely manner. Little minds playing games.

The function of a tuned input is to provide a 50 ohm resistive load to the driver stage. Any filtering is a bonus but it isn't there as a filter. Your stated passband only has 3dB corners. Hardly even worth mentioning. Newbees who are used to solid state amps needing bandpass filters will buy...

A tuned input with a typical Q of 2 as used in triode hambone amps does not resemble a bandpass filter in operation.

Maybe I should have made my point a little clearer. Everyone who has been into tube amplifier design for more than 5 minutes knows that a pi-net and a tuned input will provide some filtering. I'm talking about a bandpass filter. Specifically designed for 50 ohm input and output. Not tuned...

A tuned input isn't a filter. A pi-net isn't a filter either. Wizzard uses a pi-net just like the ham amps. People keep coming up with the mythical filters that are on ham tube linears. There aren't any. Not necessary. The only filters I've ever seen were on the SB-221 to kill the chicken...

The main site is even better.....

What filters? Show me a schematic of a hammy hambone tube linear amplifier with a low pass filter. Wanna eliminate feel good watts from harmonics? Test into a dummy load.