The radio comes properly aligned from the factory so it meets all design specifications and legal requirements. Now draw your own conclusions.
Not good enough Warren,The radio comes properly aligned from the factory so it meets all design specifications and legal requirements. Now draw your own conclusions.
You have assumed the radio was "perfectly tuned" from the factory.
A fair assumption today, but a less than fair assumption in the yesteryear and depending on the brand.
You ave assumed that the radio has not drifted from its factory tune since it came off the line.
Also a fair assumption today, but certainly not a very good assumption for a older radio been subjected to vibration and heat/cool cycles.
It is not fair to ask some one to draw conclusions, when you don't state the assumptions.
Just the same as it is illegal to do so with Amateur gear unless you hold an Advanced qualification.
It all depends.
If the design has a limiter you should be able to set the modulation close to 100%.
How are you measuring it?
Absolutely correct HUB, nothing is ever good enough for N_Jay (;->) although my statement is good enough for government work when it comes to giving a satisfactory explanation to the less technically inclined among us.
I've been hanging around the shop quite long enough to be perhaps a bit overly familiar with component drift and in manufacturing long enough to know how transformers and inductors are pre-tuned before assembly and little to nothing is aligned as a complete unit. I also happen to have working knowledge of how some newly wound coils can drift completely out of spec between the time I tuned them and the government inspector sat beside me during the acceptance certification testing, one of those how the hell did this happen moments. Actually it's relaxation of winding stresses but who besides me needs to know that?
OK, now that I have satisfied N_Jay's compulsive obsession with correcting me (;->) I'll sit back on my initial statement knowing full well (up close and personal shop experience) that a proper alignment job on the bench may produce a perceptible improvement to the meters (that much I'll admit) but in the end will buy you nothing of value on the air.
The defense rests, over to the lawyer with the tweezers and the ticks. (;->)
Are you saying that until the advanced level you are unable to build home-brew ham equipment?
If I was attempting to do so,I would turn the appropriate modulation potentiometer and monitor the CB's mod setting on the CB's panel meter prior to adjustment,if the mod indicated 80%, I would turn the potentiometer till it reached 100% on the CB's Meter.Then i would check with other CB'ers for spurious emissions and distortion.I would not go over 99% on the CB's meter if I was attempting this adjustment.
Right now my CB is indicating 70 % mod its meter.
How else could i measure it N_ Jay ?
That is correct.
Transmit that is. RX is a-okay.
Admit all you want warren,but thats how you learn stuff,by tinkering and exploring stuff.
You live in/near Chicago right? Isn't that the next closest thing?