from now on, I will only use a remote control for tv

[Guest]

Can anyone recommend a good universal remote. I would like one with a touchscreen when you can label buttons with your own text.

[pyscrow]

I had a verbal remote control back in the old days, then my wife left me, and I had to change the channels myself......

[gmatov]

Yeah, well, I did not want to upstage the kids here who used sticks to prod the "remote". "Git up there, boy, crank the channel dial!"

I actually did walk to school in snow up to my ass, but only like 3 blocks, and you have to think that at that age, up to your ass is only a foot or so.. 'Course, today, 2 inches is a school holiday.

Vitualis,

I do not wish to argue, but your link does not say that ANY wavelength is automatically a lightwave. Photonics is really light. An electical/electronic signal need not be a lightwave. See Tesla, Nikola.

Good grief, if they were they would BE line of sight.

Cheers,

George

[vitualis]

I probably should have made myself clearer...

The link was to show the EM spectrum (and hence your assertion that 2.4 GHz is indeed UHF...

However, radio waves are clearly light waves...

Electromagnetic spectrum.

Radio waves are a certain wavelength / frequency of photons. Visible light are also certain wavelengths /frequencies of photons. Hence: radio waves (the vernacular use) are light waves (the vernacular use).

An electric signal is NOT a light wave but radio waves themselves are photons.

Best regards.

[ChrisX]

I probably should have made myself clearer...

The link was to show the EM spectrum (and hence your assertion that 2.4 GHz is indeed UHF...

Is 2.4 GHz frequency way higher than the UHF TV signals?

Must be higher as this doesn't interfere with broadcasting TV stations and notebook and laptop computer wireless is on the same frequency range of 2.4 GHz too.

I can’t use the AV sender and receiver and computer wireless at the same time due to interference.

I have switch off the computer signal for the video signals.

Sure the video signals are so strong that I don’t have put up the dish to receive the signals.

[gmatov]

Michael,

This may be splitting hairs, but I would suggest that light waves are the visible part of the electromagnetic spectrum.

They have gotten so far down into the wavelength that they are invisible to the eye, witness the 450 nm or there abouts that Blu Ray is supposed to be, and the shorter wavelengths that Intel/AMD are using for photolithography.

Longer waves will not develop with the masks used for the 90 nm traces of the newer CPUs. The light wave itself is too long.

And, you cannot see it.

Cheers,

George

[vitualis]

The problems with common speech I agree...

"Light" is composed of photons -- little quantisized packets of energy if you will.

"Visible" light is of a certain wavelength of light.

"Microwave" and "UHF" is of another wavelength of light, but both are still "light".

At different wavelengths, photons interact with matter in different ways. You still need "line of sight" with "radio" waves -- it's just that a lot of things which are opaque to visible light is relatively transparent at radio frequencies.

Best regards.

[gmatov]

micheal,

Nah, the spectrum that can't beseen is just that,nNot a light wave. A vibration, yes, as are the rest of the EM spectrum.
You can't just say it is this, regardless of the percieved intelligence, the coll4ected data.


From IF to UV is a h hell of a biuncha steps.
I quit. Can hardly see my KB. More next time.

Cheers,

George

[vitualis]

Well, I don't think that the definition that "light" has to be visible to humans stick...

After all, we have "infrared" light and "ultraviolet" light... neither of which are visible to humans by definition...

It's all part of the EM spectrum. I agree that the word "light" is probably a bit vague but if you consider that light = photons then radio "waves" are just as much "light" as is visible light.

Best regards.

[ChrisX]

Is 2.4 GHz frequency way higher than the UHF TV signals?

I just found out that Australia's highest TV frequency, Channel 69 is on 814.25 MHz. This is so low compared this AV signal I use and too me it is as such a microwave video sender and receiver.

Check out: http://en.wikipedia.org/wiki/Super_high_frequency

Wireless LAN is in the same range: http://en.wikipedia.org/wiki/Wireless_LAN

This is close enough to be microwave anyway with the signals as very direct straight line of path like this even though as extreme high UHF.

It is very strong and goes through walls nothing like infra red. Much better than using a standard UHF TV sender.

The AV sender/receiver is compatible with PAL and NTSC having stereo sound.

The range of the AV device is 2.4 GHz to 2.4835 GHz and using a separate remote control signal as well.

[indolikaa]

I just found out that Australia's highest TV frequency, Channel 69 is on 814.25 MHz.

Channel 69. Ah, the aussie sense of humor.

[ChrisX]

I just found out that Australia's highest TV frequency, Channel 69 is on 814.25 MHz.

Channel 69. Ah, the aussie sense of humor.

No a problem. There is an unusual Channel 0 on 46 MHz and this frequency is rarely in use here these days.

There are only 5 TV stations on that very low TV wave signal and the reception is usually very poor due to the frequency used.

Melbourne, Australia used to have a commercial TV station on CH0 and now moved to CH10 years ago.

I know in America that TV is above FM radio and this Channel 0 is below the FM radio spectrum here. Aust TV is like this: CH0, CH1, CH2, CH3, FM Radio, CH5, CH6 and so on.

I used that Channel 0 for years as a VCR RF out to the TV. Now it is on UHF Channel 41 or 44.

[babyboo]

Not to digress...but...

Growing up I had the best remote in the world...Mom!

[Tiny71]

What the hell is live TB, and how the hell did he see lice? Superman vision?

Does the term full of shit as a Christmas Goose fit here?

Good grief!!!

George

Tuberculosis (TB) is primarily a disease of the respiratory system, and is spread by coughing and sneezing.

The TB along with the lice were found after he swabed the seat and tray and studyed the results in a lab. No 'Superman Vision' was needed. *cough*science*cough*

Grief relieved I hope.

[gmatov]

Tiny,

Yes, grief relieved. He did a test, with a swab, or whatever. That is understandable, but not your original post.

Someone "saw" live TB bacteria, and real live lice.. Tested for is entirely another matter. But then, you could probably test for and find many other diseases and assume anyone who came in contact with them would contract them. Doesn't happen in real life.

But by the same token, when I go to the pot at work, I will wash off the seat before I sit, regardless if it helps. If dried lumps are washed off, I feel better about putting my own ass on the same seat, contagious or not.

Cheers,

George

[lordsmurf]

FM radio here in USA is between 6 and 7 if I remember my college broadcasting courses correctly. Some radios can pick up the lower/higher frequencies of tv audio. In some places, a channel will bleed in 87.1, the lowest on the FM dial.

[ChrisX]

FM radio here in USA is between 6 and 7 if I remember my college broadcasting courses correctly. Some radios can pick up the lower/higher frequencies of tv audio. In some places, a channel will bleed in 87.1, the lowest on the FM dial.

I can remember many years ago residing at North Sydney and there having very strong TV/radio signals.

The apartment was so close to the TV/Radio towers that I was able to listen to the FM station on the audio of the TV on Channel 3 or 4.