I used to know a whole lot of those guys that ran big 10kw+ mobile specials all the time, and they spent a lot of time on the key. Notice I said used to, honestly a lot of those guys started to develop some serious health problems with they got into their 50's, things like cancer, lukemia, benign tumors. High instances of these disorders when compared to the rest of the population.
Who said anything about DC input power? To the best of my knowledge, I have never seen an amplifier driven with DC. It's all been AC, at RF.
- 'Doc
You did right here:
Lets see...
50,000w / 12 vdc = 447 Amps
447A / 60% efficiency = 745A round to 750 amps
Guess about 100 amps to run whatever else you might need in that vehicle so 850 amps. Tack on another 100 amps just for the 'grins' and you have a draw of about950 amps.
Snipped.
Hey Doc, are you using a solar powered calculator in the dark again?
Check out those figures again: 50,000/ (lets say 14.2 volts to allow for charging voltage,so that becomes 50,000/14.2=3521 amps and at typical 60% eff. it would need 5868 amps. The bad news is you were wrong in your math,the good news is that the true current is even more outragous than you thought.
50,000w / 12 vdc = 4,166.66 Amps 4,166.66A / 60% efficiency = 4,166.66 / 60 x 100 to give a dc draw of 6,944.44A,thats not allowing for grins.
Your 950 Amps of dc is about 6,000 amps short of driving a 50kw DC linear.You would struggle to run 7kw at 12v with your calculation.
Good thing it ain't my calculation.
Also I see confusion with the terms input power and drive power. Input power is the term commonly used for DC (power) input to the final. Drive power is R.F. drive.
Nice thread necro.
ain't no confusion on my side,i'm well aware of what rf drive is,but without dc input power you wouldn't be driving anything,rf drive or not.
i'm also aware its not your calculation,what surprised me was you failed to notice its shortcomings,i mean its not exactly a couple of amps short.maybe you should be educating those that have difficulty counting than trying to educate me.
nice thread necro?
thats your speciality but i learn fast,lol.whats your grouch with tom rauch incidentally,did he prove you wrong?upset your ego?
your right about one thing though,everyone makes mistakes even you,its not making the mistake thats difficult,its the admitting it.
ain't no confusion on my side,i'm well aware of what rf drive is,but without dc input power you wouldn't be driving anything,rf drive or not.
i'm also aware its not your calculation,what surprised me was you failed to notice its shortcomings,i mean its not exactly a couple of amps short.maybe you should be educating those that have difficulty counting than trying to educate me.
nice thread necro?
thats your speciality but i learn fast,lol.whats your grouch with tom rauch incidentally,did he prove you wrong?upset your ego?
your right about one thing though,everyone makes mistakes even you,its not making the mistake thats difficult,its the admitting it.
Hey Jazz. I don't know who pissed in your cornflakes and I don't really care. If you are going to follow me around and try to refute every post I make you better go back to school first. So far you aren't doing anything but making youeself look stupid.
Have a nice day.
he sent it back to ameritron and they said its fine nothing wrong and sent it back and hams go ..."okely dokely I guess its ok for my stuff to buzz hyuk!" No cber would put 3k on an amp and have it buzz and then take it when the company says "nope, youre wrong"... funny, if it says a certain name on it it automatically means quality no matter the performance, in the second video he had a 1+ min key at high power. try keying that ameritron that high for 1 min and see what happens,Even moleculo had one melt on him.
I would buy (for the money) the second amp by wizard, have him build in band switching and a low pass filter and be WAY ahead of the game.