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Matching 50Ω to 75Ω

That's a new one to me. Seems like it might work sufficiently well. I will give that a try sometime and see what the results are that I get.

COOL

If your radio is not yielding the wattage numbers that ROBB published then just to satisfy your curiosity you could tack another 100pf cap across the exising cap and see if that brings your output up to those numbers. If your radio is already doing those numbers then why bother and why take a...

People do things like that a lot but that don't mean that it was the right thing to do. Like the guy that was trying to use his antenna analyzer as a wattmeter. It just didn't make any sense.

Would be naive to consider that the choke will do anything to protect your equipment or your house from the damaging effects that can be caused by a lightning strike to the antenna. And it would also give a false sense of security which might prevent you from exercising really effective methods...

Are you saying that you have a PEP meter or are you saying that you are seeing 50 W swing with a average responding meter. If you do it properly you can make an average responding meter read very close to what a PEP meter will read when on SSB. (this will not work for AM) ROBB advised you to...

I have used it for a number of years now. It is a good substitute for the real stuff. Almost as effective, but it does have its drawbacks; Leaves an oily residue if you use too much of it, and I think that is the main mechanism by which it works, washing away the contamination, and that...

What problem?!........lol If that is truly the case then I will be surprised if something ain't already toasted.

He is talking about the combined audio response after it is filtered in the RF domain and then is filtered in the audio amplifications stages as it makes its way to the speaker. Interesting enough but nothing to be concerned with since you must do the SINAD with the AM carrier with 1 kc modulation.

I like the muffler clamp idea M42Duster has and I like the idea Wire weasel has; Put the two together and you don't have to drill a hole through the mast pipe. Put the clamp where it needs to be positioned with the guy ring above it and voila; You got 'er done. Simple, elegant, cheap and no...

REALLY?! I am curious as to where you ordered this part so I don't ever make the mistake of ordering parts from them.....lol They made a really stupid mistake. That is a horizontal output transistor for a color television.....not even close to an RF output transistor. Who ever substituted...

Not 1mv, I think you mean 1microvolt. You want the least amount of signal that will allow the SINAD meter to work properly. I have not examined the SINAD meter software as provided by ROBB to see if it has other frequencies as an option so I don't know if you can alter it to work with 400cps...

That post was done well..... I attempted to do something like that but gave up. Ended up typing the information from the manual, manually. It has been my experience that the older tube radio was -73 dbm (50uv) for S9 and the solid state is -67 dbm (100uv) for S9. I try to go by what the...

I agree; seems like a more reasonable assumption.

The CW mode is what you use to establish the "SET LEVEL", after you have done that then you go to INT mode and turn the modulation level set knob to get the desire percentage of modulation. According to the book if you have the modulation set at a high level and you try to set the rf level to...

You might need to confirm proper action of the attenuators. If you do no know the complete history of this generator (did someone inadvertantly transmitt into it and over-dissapate one of the resistors) then this is something that I myself would do so I would have more confidence with the end...

A good antenna is definitely the way to go, but most every cobra 29 I've ever tuned would do 30 -32 watts pep on a Bird meter. I wouldn't spend more than a minute to just do a little bit more than double my power. I don't know how much you are spending to have a 75 watt radio but I think you...

I seen it with mine own eyes................ Years ago....I'm at a bar that has entertainment. I see 3 guys hangin' out together at the bar; Two are seated and turned with their backs to the bar so they can watch the band. Their buddy is standing facing them...... he grabs the pitcher they're...

You should do a test to make certain that you get the expected results with this generator. You need to know if it is shielded well enough and if the common mode currents will be small enough so as not to interfere with the desired results. You can make this check by hooking it to a radio and...