Talk to me about 5g

[robj20]

A microwave does not have a low setting, it runs at full power, just the duty cycle varies, ie on 10% it is on for 10% of the time period and off for 90%, but during that 10% of the time it is at full power.
Rather like an old fashioned electric hob, it is either full on or off, nothing in between.

My microwave has low settings.

 

[Ham]

My microwave has low settings.

You might think it does, but as Sangoma says, at least the vast majority, if not all, of domestic microwave ovens achieve that "power" setting by being on for x% of the time, only. It is possible to achieve modulation of the power, but I don't think that any domestic oven has that feature, it is likely only in medical use cases that it is worth having. Therefore it isn't impossible that yours has, but it is unlikely and it would be interesting if it did.

 

[robj20]

You might think it does, but as Sangoma says, at least the vast majority, if not all, of domestic microwave ovens achieve that "power" setting by being on for x% of the time, only. It is possible to achieve modulation of the power, but I don't think that any domestic oven has that feature, it is likely only in medical use cases that it is worth having. Therefore it isn't impossible that yours has, but it is unlikely and it would be interesting if it did.

There are more than you think with inverters these days, pretty much all Panasonic and I think Sanyo models.

Microondas - Panasonic

Ver Panasonic Microondas

www.panasonic.com

I couldn't go back to a non inverter microwave, they cook food so much better.

 

[LongLensPhotography]

However, 5g is in the 1mm - 10 mm wavelength, that's in the "radar" space on the diagram, so covers all speed cameras and stuff like that, below infrared, and the diagram is not linear. I'm sure that many people think that 5g is somehow extra aggressive, like x-rays, and is blazing new technology. Truth is, it isn't anything of the kind, there's no prima facie reason for concern than there is for radio waves.(As it happens there is more genuine causes for consideration with 5g than there is with, say, vaccination but that doesn't make it any more right, and I'm not getting into that)

And so is microwave oven.... 2.4GHz to be precise. The only difference here is the power levels, and distance. You can presumably have safe levels and that's fine, but at some point like phone with no connection or too close to a mast and you may be getting past the 'safe' threshold.
Microwave ovens are capable of doing miracle chemical reactions in minutes and quite cleanly versus days at ridiculous temps and crap yields. Just because we know relatively little about their chemistry and biochemistry doesn't mean it is not there. It mostly works be exciting O-H bonds, typically water and believe me you got more than plenty in your body.

 

[gramps]

Talk to me about 5g

Stopped listening now ... too far off track!

 

[Pound Coin]

<takes tin-foil hat off>
I remember in the mid 90s suffering the misfortune of having a Daily Mail delivered to my hotel room, rather than a Times. It was Darlington, so I guess we could excuse them.

Anyway, the front page was a massive story about how mobile phones were going to fry brains. It was going to be the new CJD, I think.

As I understand it, brain cancer has declined since those heady days. I'm not sure there has been a follow-up Daily Mail story, as I haven't been back to Darlington.

</takes tin-foil hat off>

 

[Deleted member 68495]

As an ex-radar engineer I can confirm that magnetrons in a microwave will always run at the same power because if they don't they won't work, you can vary the anode voltage a little but too high and the magnetron will arc, too low and it won't oscillate. As has been said, if you run it for ten percent of the time, your food will perceive 10 percent of the power and as such will appear to warm up more slowly. Listen to your microwave when it is on defrost -- it comes on, it goes off -- but because you are defrosting you can hear the magnetron switching on and off; the power when it's on is always the same, it's just not on for as long.

Re the OP, I might add that I am firmly of the belief that 5g phone coverage is directly responsible for COVID, for monkey pox, for the Russian invasion of Ukraine but that this is all a rumour put about by manufacturers of aluminium foil so that that gullible people will put more of it over their heads to stop the aliens hearing their thoughts.

 

[Sangoma]

There are more than you think with inverters these days, pretty much all Panasonic and I think Sanyo models.

Microondas - Panasonic

Ver Panasonic Microondas

www.panasonic.com

I couldn't go back to a non inverter microwave, they cook food so much better.

I thought it was only Panasonic?

Very nice, but heard they create a lot of RFI, both from the inverter and the magnetron, but haven't tried on to know first hand

I would guess that more makes will follow, depending if they can come up with their own design or have to pay fees to Panasonic.

First microwave we had was Sharp in the early 70s, they seem to have been around a long time in the domestic market, and they still make very good ones, so maybe they might be next?

 

[sirch]

A microwave does not have a low setting, it runs at full power, just the duty cycle varies, ie on 10% it is on for 10% of the time period and off for 90%, but during that 10% of the time it is at full power.
Rather like an old fashioned electric hob, it is either full on or off, nothing in between.

Power is energy per unit time so changing the duty cycle changes the power.

 

[Sangoma]

Power is energy per unit time so changing the duty cycle changes the power.

What is your unit of time?
If it is one second, it will be 100% one second and 0% the second after it turns off . It will never be 50%. If it is one hour, there will be a false answer if the microwave is only running for 10 minutes

It will alter the average power, but not the instantaneous power, which is what is understood in context.

It is true in terms of the rating given, ie a 1kW microwave consumes 1kW when the magnetron is working, but there is no way the magnetron can run at 200W (on normal microwaves )

Fortunately nearly everyone understood what was meant in the context of the discussion.

 

[sphexx]

Stopped listening now ... too far off track!

I thought it just got interesting. Thanks for starting this thread on inverter microwave ovens, which I didn’t know existed. Better than boring old 5g which can barely melt an ice cream

 

[drounding]

5g on 3 wth my phone is like a rocket, I get speeds of circa 900Mbps up and 110Mps down, at a few hundred metres from the mast. With my home broadband (Virgin M500) on 5GHz mesh wifi6 I can get circa 460Mbps up and 36Mbps down, which is very good but not a scratch on the 5g mobile signal. The internet performance difference is noticeable on heavy image laden pages.

I presume the driver for ISPs is that they can get more throughput in the same timeframe and therefore support more traffic, which is probably why they plug it.