New member and AM modulation % question.

[Sonic]

Well im close to youre numbers. Im dead keying 100 watts from the linear and letting it swing. Ill try 125 dead key like you say. I didnt realize the higher swr reading im getting after raising the dead key is a false reading if im understanding you correctly.

 

[Staybolt]

SWR's? You mean ALL of them go up?



SWR is ALWAYS singular. SWR. It is a ratio. No plural. SWR does not change with power. Are you recalibrating the meter before AND after changing power? I assume you are talking about the antenna SWR and not the SWR between the radio and amp. What you are seeing is likely the harmonics and crap generated in the amp being reflected from the antenna. You meter cannot tell the difference between your signal and the harmonics etc. Your true SWR is what you see with the amp OFF.

Its not Swrs its SWARS! LOL

 

[Sonic]

So basically youre saying if a linear is swinging to say 1000 watts the dead key should be at 250? 4 to 1 ratio or 1 to 4 ratio if im saying it right?

 

[Captain Kilowatt]

So basically youre saying if a linear is swinging to say 1000 watts the dead key should be at 250? 4 to 1 ratio or 1 to 4 ratio if im saying it right?

Actually what I am saying is if the RADIO dida 4:1 ratio then the amp would follow suit quite closely if it is being run within spec and not having the piss driven out of it.

 

[Captain Kilowatt]

Its not Swrs its SWARS! LOL

Technically it's VISWARS but almost nobody calls it Voltage Standing Wave Ratio.