CF-19 'wings'

Out of curiosity, does anyone know the purpose of the 'wings' (half/full) on the sides of the LCD on the CF-19's?

 

They improve reception of the WWAN.

 

That's why they are made of plastic.

 

I did some more research
Here are the other responses to this question from this forum.
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That antenna is an ergonomic designed to strengthen the signal.
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According to Panasonic's service center, the only, ONLY reason for wings is because of the FCC regulations!
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The wings that stick out further are to comply with US regulations about the distance between the antennae and your body.
They don't exist in Europe or Japan.
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It's just to make sure you don't hold the aerials right against your body, which the FCC fear may irradiate people
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That makes a disgusting kind of sense.

Tnx, I think I will pull the side covers off my -18MK1 and swap these out.

I do not forsee the day I will be licking my computer screen (but stranger things HAVE happened )

 

CF-18 to CF-19 Mk1/2 will swap, they changed the spacing on the holes for the Mk3 up 19's.

 

Well, that figures.....

 

Typical 'snowflake' thinking.

Protect the sheeple from themselves.....

The FCC has some absolutely ridiculous rules for 'exposure' limits.

Try working on high power transmitters.....

 

and the fcc has that covered as well .
look at the exposure limits for broadcast FM ... the exposure levels at the site are very low (always a good idea for the equipment in the shack) .
but the constraints have made it to where to even (legally) enter the site in some cases one must remotely lower the power of the transmitter(s) .
in some cases , an appreciable amount of height must be added to a tower (easy on a new build) in order that the downward radiation from an array meets their exposure criteria if one wants to run the transmitters (even at a 3dB drop) and maintain coverage .

annnddd ...
all of this is good and well if everyone follows the rules .
i was supposed to climb a co-owned tower/antennas site .
the broadcasters were notified of the intent 24 hours in advance ... we were assured that they would comply so that i could safely climb the tower (replacing the main feed line to an antenna bay feed coupler and bullet) .
all stations (4) were 20KW into the bays .
obviously the one i was to work on was shut down (sunday at sunup) .
two others were confirmed in the shack to be running their low power (100 watt) transmitters and i personally disabled the remote controls .
the fourth station/transmitter i could not access as it was locked in a *separate room* , but i was assured by the owner and the dj on shift (by phone) that they were on their backup transmitter .
hmmm ... seeings as how i had dealt with this outfit in the past , i accessed their 3 phase disconnect panel , clamped on the amprobe and did some math ...
it showed that they were running full-tilt on the main transmitter !
i called the studios and talked to the dj ... he finally fessed up that there was and had been a problem with the remote control for almost a month !
i called the owner and asked him if he could confirm that the power had been lowered , he said "yes" that he had personally lowered it .
i told him that was odd because i just talked to the dj and he told me the remote control was non-functional and had been for a month .
the owner asked me how i knew the station was at full power (a little pissy by this point and thinking i had broke into their transmitter room) , i told him how i determined it .
he grumbled something about driving up the mountain , missing church and his wife being a little more than torqued ... sounds like personal problems to me .
in the end , we are ultimately responsible for our own safety .
some people just don't get the idea that a life is more important than singing in the church choir .
some people have a problem with being honest .

 

According to our Panasonic engineer, this is the correct answer as Shawn stated:
the only, ONLY reason for wings is because of the FCC regulations!

 

So.. Larry... in my head are two stories. One from a tower guy in Cuba in the early 50's. (USNavy)
It concerns warming your lunch with military grade microwave. Military of course would not shut anything down for individual safety.

What is the TRUE story of inventing the Microwave Oven?

Sorry OP we have to go here,

TDRHQ

 

The challenge answer is Percy Spencer.


The following was written by Daven Hiskey



Today I found out the microwave oven was invented by accident by a man who was orphaned and never finished grammar school.

The man was Percy Spencer. At the age of just 18 months old, Spencer’s father died and his mother soon left him to his aunt and uncle. His uncle then died when Spencer was just seven years old. Spencer subsequently left grammar school and, at the age of 12, began working from sunup to sundown at a spool mill, which he continued to do until he was 16 years old. At this time, he heard about a nearby paper mill that was “electrifying”, which intrigued him. Given that few in his town, a remote community in Maine, knew much of anything about electricity, he began learning what he could about it and managed to become one of three people who were hired to install electricity in the plant, despite having never received any formal training in electrical engineering nor even finishing grammar school.

At the age of 18, Spencer decided to join the U.S. navy after becoming interested in wireless communications directly following learning about the wireless operators aboard the Titanic when it sank. While with the navy, he made himself an expert on radio technology: “I just got hold of a lot of textbooks and taught myself while I was standing watch at night.” He also subsequently taught himself: trigonometry, calculus, chemistry, physics, and metallurgy, among other subjects.

Fast-forward to 1939 where Spencer, now one of the world’s leading experts in radar tube design, was working at Raytheon as the head of the power tube division. Largely due to his reputation and expertise, Spencer managed to help Raytheon win a government contract to develop and produce combat radar equipment for M.I.T.’s Radiation Laboratory. This was of huge importance to the Allies and became the military’s second highest priority project during WWII, behind the Manhattan Project. It also saw Spencer’s staff rise from 15 employees to 5000 over the course of the next few years.


One day, while Spencer was working on building magnetrons for radar sets, he was standing in front of an active radar set when he noticed the candy bar he had in his pocket melted. Spencer wasn’t the first to notice something like this with radars, but he was the first to investigate it. He and some other colleagues then began trying to heat other food objects to see if a similar heating effect could be observed. The first one they heated intentionally was popcorn kernels, which became the world’s first microwaved popcorn. Spencer then decided to try to heat an egg. He got a kettle and cut a hole in the side, then put the whole egg in the kettle and positioned the magnetron to direct the microwaves into the hole. The result was that the egg exploding in the face of one of his co-workers, who was looking in the kettle as the egg exploded.

Spencer then created what we might call the first true microwave oven by attaching a high density electromagnetic field generator to an enclosed metal box. The magnetron would then shoot into the metal box, so that the electromagnetic waves would have no way to escape, which would allow for more controlled and safe experimentation. He then placed various food items in the box and monitored their temperature to observe the effect.

The company Spencer was working for, Raytheon, then filed a patent on October 8, 1945 for a microwave cooking oven, eventually named the Radarange. This first commercially produced microwave oven was about 6 feet tall and weighed around 750 pounds. The price tag on these units was about $5000 a piece. It wasn’t until 1967 that the first microwave oven that was both relatively affordable ($495) and reasonably sized (counter-top model) became available.

 

yep ... that is almost the same story i read many years ago ...
the hershey bar melting being the common point .
the story i read was about an engineer working on a FM transmitter and noticed that the hershey bars he carried in his pocket had melted .
essentially , the effects between commercial broadcast FM and microwaves is the same ... although the lower frequency of the FM transmitter (88-108 MHz) would mean increased penetration and more even "cooking" .
also , instead of strongly "flip-flopping" water molecules and the friction producing heat , there would be a need for increased power density and/or an increase in the polarization of the fluid (with the 88-108 MHz stuff) ...
salt would provide an increase in strongly polarized dipoles .

the microwave method would be easier to manufacture and sell ... smaller sized equipment .
the raytheon patent was utilized by acquiring an appliance company and selling under the name "amana" :
https://en.wikipedia.org/wiki/Amana_Corporation
raytheon was/is one of the "quietest" companies around ... always has been ... unlike RCA , GE and others .

leave us not forget one of the uses of the "radar range" :

a sight gag in a comedy movie .

i heard of a guy in alaska (radar on the DEW line) that thought it was a good idea to pull up a chair and sit on the wooden catwalk that ran in front of a fixed radar dish .
why ? because it was "warm" .
yessir , they found him ... cooked to perfection with his six pack of beer and chips .

 

This is a good page for those that are interested in the
FCC's Maximum Permissible Exposure (MPE) Limits.

From a safe Specific Absorption Rate (SAR), the Standards and regulations set MPEs that vary by frequency. The most stringent requirements are from 30 to 300 MHz because various human-body resonances fall in that frequency range.

 

Here's what I don't get. Assuming we're talking about the plastic antenna covers on the screen bezel, and when we refer to "wings" we are talking about the ones that look like this
or this
as opposed to something that looks like this , if the reasoning behind them is FCC regulations, microwaves, or even signal improvements, why don't all CF-19s have wings?

 

Because WWAN sends out more microwaves at different frequencies?

Truck drivers send out microwaves all day. Why don't truck drivers have wings? Or at least tin foil hats.

 

From a wiki

2 W.. Maximum output from a UMTS/ 3G mobile phone (Power class 1 mobiles)
Maximum output from a GSM850/900 mobile phone


WLAN //WIFI is at best 100mw or 5% of 2w. (unless you hot rod things)

The CF18//CF19 wings are only on the WWAN equipped models.

 

I need coffee.

 

I've been asking that for years!

 

Remove the wings and just wear the hat.

 

My understanding is that the minimum distance is in regard to 4G transmissions. The ones without the wings were not certified for 4G. Either that or just the ones certified for WWAN.

 

I actually 'clipped' my CF-19's wings by swapping it out with another unit. Maybe that's why there's a warning on the PCB beneath the WWAN board that only Panasonic-authorized techs can install it. That way, they'd replace the non-wing'd units with wings when adding the WWAN board.

HOWEVER... I've also seen CF-19s with HALF wings, which I believe are on WiFi-but-not-WWAN-enabled units in Canada. Is someone able to confirm that?

 

From what I have seen, the half wings were on certain mk's with GOBI's.
No WWAN - no wings.

Here is another similar thread
http://forum.notebookreview.com/threads/wide-handles-on-screens-of-cf-18-19.601215/

The wings could be MUCH worse. "I'm BATMAN......."
from here http://www.terapeak.com/worth/orego...-wings-sounds-lights-activities/172160528955/



Annnnnddd now for something completely different.
USB wings from here.... http://www.badermodels.com/usb.asp

 

I think I read somewhere that WWAN-enabled units destined for Europe and other markets outside of the U.S. didn't come with wings.

But you know, as the say, don't believe everything you read on the internet.

 

Hi,

I'm from Germany/Old Europe and I confirm that our 3G-enabled toughbooks do not fly.
On a related note, tinfoil hats increase your reception and thus help THEM to manipulate your brainwaves.

 

hmmm .... your statement is very true when it comes to those 11 meter twidgets and "lids" ...
but for "hams" the opposite is true .
do you suppose that due to the emissions that a new crop of "lids" is being created ?


referencing the truck driver issue ...
it don't much matter what you do ... the brain is considered a low-functioning , field expedient unit .
why do truck drivers have their name on the back of their belt ?
at this juncture , i shall digress .