I hear Hard Drive

I think it may be, but then anything about "hard drive" runs long because of all the advertisements.

 

I heard static then Orson Wells came on the radio and said that the Martians have landed.

 

I never said they were and I'm glad you agree with me.

It's very easy to make a blanket statement.
Either the waveform produced by your radio is identical at every frequency within the audio spectrum to the waveform produced by your signal generator or it isn't. If you're testing a dual final radio right out of the box with a factory tune, it won't be and it won't matter what microphone you plug into that radio until you fix the linearity problems. Naturally, it's impossible for you to fix those problems without replacing the mismatched transistors. Once those problems are fixed then 90% of every microphone you plug into the radio will sound fine and only then will you be in a position to blame a microphone for creating a problem.

 

No really agreeing with you.

What I am trying to do is probe this issue from your point of view.

What stage of radio?

I can see a clean waveform being reproduced through the audio chain, right up to the RF stage but then what?

I only have a few dual final radios here, I know the Johnson has matched finals but that's not because I went out and bought them but had them in my little stock of parts. Normally duals are not.

I disagree, there are a lot of ways to fix distortion without replacing the finals.

still there is more to it than what you are saying.

 

IT'S ALIVE!!!!!!!!

JD

 

If the waveform isn't clean after the RF section and it was clean before that section, then you know the RF section is non-linear. It doesn't take a genius to figure this out.

How do you rectify Non-linearities without replacing the non-linear components with components that are beta matched and perfectly linear? It makes me think of a man and a woman rowing a boat and a man on the left side and the woman on the right side and the boat is going in circles because the man has more strength in his upper body.

That is true 5% of the time. I do agree

I've always said the same thing and I'm glad that we agree.

 

Yes most of the time, sometimes it is the design of the system that modulates the signal, I won't get into the 10 common ones but there always some pros-cons with each. Liniarity is one problem with many of them.

Well, you don't.

It isn't important because we are not talking about purity issues in a signal that depends on it to meet standards in order to maintain licensing. This isn't AM broadcast systems, it is CB radio and even ham radios have problems with the signal that isn't important, go listen to some of the Hi-Fi AM people, you can detect even with all the processing equipment they have issues with distortion. I forgot the guy's call, one runs a class E transmitter of 250 watts and has a high-end processing audio setup, and STILL sounds like crap.

There is another running a Collins 20-V3 that I used to own, he is using my old RCA BK-10a mic and my old Collins board, he sounds great, but then it is a broadcast transmitter that is set up right, and sounds perfect. while the BX-10a is a very good mic, if he used my 77DK mic, as we used to say, we would hear a cat crapping behind the garage two blocks away.

OK!

We agree on a lot more than you realize, I just like yanking chains to get people to think.

 

Interesting read!

CB Technician Reviews: "Fine Tune CB", "Hard Drive", "163", "Mud duck in the desert", "Safety first", etc " : r/cbradio (reddit.com)