What label maker are you using?
Just a typical Brother P-Touch nothing special. I do an extra step by trimming the labels to size with a razor blade.
LOL, at first I thought he was going to transmit through all of them in series!
I'll give him credit for not attempting that. However, he's using a 100W element on the Bird and measuring 4 W. Now don't go after me readers - He's not peaking power he's measuring it and then comparing those measurements.
He says nothing (of course) about the error which would be 4W +/- 5 W. It's a +/- 5% of full scale meter. You think the other meters are 5% tolerance meters too? If so I have a bridge I'd like to sell you.
Addendum: The manual for the Drake W-4 says the accuracy on the 200W scale is +/- 5% of reading (not full scale) + 2W
AAAARRRRRGGGGHHHH!
I have seldom seen such a mismash of misinformation, BS & general dumbness than in that misbegotten video.
Back in the day, I worked with
real AM transmitters.
The big ones, around 10kW to 55kW didn't have power meters, but relied upon RF line meters.---some lower power ones did have power meters.
In both cases, neither the average RF line current, or where provided, the average forward power varied with modulation.
If the big beast was delivering the current to line corresponding to 55kW without modulation, the same current existed under modulation.
With symmetrical modulation, the negative excursion of the modulating waveform will reduce the instantaneous power by the same amount that the the positive excursion increases it, so the average remains the same.
That is, of course, how AM Broadcast Tx work.
In the dying days of Amateur Radio AM, various schemes of "Supermodulation" were devised, which deliberately distorted the modulation envelope, at the cost of higher distortion & possible out of band spurii.
Possibly, something like this is being used in those CB AM radios where they get all that "swang", but my take is ---just plain old overmodulation!
Interestingly, AM overmodulation is not readily detected by just listening to the signal on an AM radio tuned to that signal..
We had an embarassing incident once, where due to a misunderstanding, a Tx site was lined up by the locals with an audio test tone 8dBm less than the correct level.
We got a complaint of excessive readings on the Modulation Monitor when on programme, & assuming a faulty MM, despatched a replacement to them.
On test, the original MM was in spec, & they claimed the replacement was doing the same thing, so we were sent for a visit.
On the way to the site, listening on the car radio all seemed Ok, but when we reached the site, the MM on the rack was "Twanging" its meter.
Luckily, the station had an Oscillosope on site, & looking at the RF normally input to the MM, there was classic "carrier cutting".
We leapt for the audio input fader, winding it back.
When the "time pips" came up before the News we roughly reset the mod %, but then had to wait till "closedown" to do a proper "lineup"!
No complaints from our listeners, though what other people getting interfered with by the multple harmonics & other crud generated thought about it is unknown!
Of course, the guy in the video waves away the mod % reading on one of the meters as "just an indication"!