Paul W wrote:

Oh my gosh Linder your FDA are quoted. They are the people responsible for GMO food. One year their Directors are part of the FDA, the next, they are CEOs of Monsanto. I get the impression that any information that comes out of the USA is a pile of lies in the name of profit. The USA also thinks it's OK that 1 out of 2 people will get cancer.   

At the end of the day, intelligent people are wise to the way of the world. If you are concerned about this, protect yourself by turning off your WiFi when you retire for the evening and put your iPhone into 'flight' mode. That's what we do :) It certainly allows for a good nights sleep :)

Sorry Paul but I was trying to point out information from the American Cancer Society which is not a government entity.  It is a non profit.  As I had mention, in Sweden they have studied this subject for many years.  I was hoping someone had a link to the Swedish studies.

The Dect and wifi issues are much larger that most people think.  Regardless of where you are and what you are doing, radiation from devices are everywhere and is becoming more ubiquitous.  In my condo there are at least 20 wifi devices that includes a security system, lighting control, Macs, iPhones, Apple Watch and of all things my blood pressure cuff. In a few weeks, I will be ordering a new electric car soon which is loaded with all kinds of technology. I will be sitting on a large lithium battery pack as I go down the highway.  There are so many things to fear but at least my car won't emit carbon into the atmosphere.

You may be right.  Turning off WIFI at night might help in getting a good nights sleep.  However Siri probably won't like it.

Would a timer plug on the router be problematic for any reason, I wonder?

Simonbeo wrote:

Would a timer plug on the router be problematic for any reason, I wonder?

That would work but it might be to no avail.  All of your wifi devices should be turned off also because they are wifi transmitters and you may be receiving wifi signals from your neighbors.  If you have a smartphone, you may put it in airplane mode but it is still transmitting to cell towers.

Some routers have a setting to switch wifi off overnight - and a good old fashioned corded phone maybe better next to the bed. 

The sites are talking about the synchronization signal send by the base station every 10ms. In rest a DECT handset is not sending any signal, only the base station. A DECT handset next to a bed would therefor not be an issue. Furthermore there a mention of a maximum 250mW output with DECT, but this is not correct for residential systems. The maximum power output of a DECT handset is 10mW and of a DECT residential base station 60mW with 6 handsets active at the same time. The output power when the synchronization signal is 10mW as the handsets are in listening mode.

The DECT standard can be found on the ETSI web site, if one want the know the details of the DECT standard.

As a side note, the maximum power output of a GSM handset is 2W, GSM, furthermore GSM, UMTS all send synchronization signals, as this is required to synchronize the handset with the base station.

Oh man, this sounds similar to the fear years back about mobile phones' risky use at gas stations.

I little knowledge of RF and the concern is clearly overblown - there far worse things.

ISM band "wifi" runs at 2400-2475MHz, ignoring 5.0g band. Now the power level maximum is a puny 100mW - that's 1/10th of a watt. But that's the AP, a device like a mobile phone at best can push -60dBm or 0.000001mW! That's best case, realistic use is far below that, a mosquito has orders of magnitude more power output. A microwave oven which we know can heat water, using that same RF space is only capable of doing so because of its power output which is anywhere between 500-1000W. Obviously this is kept safe by means of RF filter (perforated metal container).

Broadcast radio which has been around for over a hundred years can have seemingly scary power levels. Average stations can broadcast at 50kW and there are some due to their height and antenna design capable of EIRP of +100kW. A local station here (CKOI-FM) has a stupidly powerful 300kW EIRP that can easily reach neighbouring NY & VT over 200km away. The actual transmitter is probably running something like 10 or 20 kW but the gain from antenna is what gets these figures. We're not getting vapourised from all that due to the frequency being far too low and not area concentrated to excite us bags of water.

No one complains about that.

GSM (at least in most North America) runs primarily at 1900MHz or 1.9 GHz. And the power levels used there are far lower than broadcast radio, actually similar levels to "wifi" RSSI on a good day -70dBm or 0.0000001mW but again that is from the antenna, the device's radio is capable of -40dBm or 0.0001mW or 0.0000001W. However the specification calls for sensitivity of -140dBm which is 0.00000000000001mW or 0.00000000000000001W. That frequency is (poorly) capable of exciting water true but the levels we are talking about are comically tiny.

There's far worse things to be concerned about.

It's amazing, at least to me, how advanced radio technology has become and even works.