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Old January 11th 10, 07:04 AM posted to rec.radio.amateur.homebrew
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Default Radio conversion

highlandham wrote:
99% of all the cordless phones are now digital (mostly 900MHz)
Many are of the DECT type (Digitally Enhanced Communication Technology)
Those cordless phones which are GAP compatible (even when from different
manufacturers) can be used with the same base station (unit wired to
the telephone system)


Maybe in the US they are. In the rest of the world, and many sold in the US,
use the 1.8gHz band. The low end of the US 1.9gHz band overlaps the high
end of the 1.8gHz band used elsewhere, so they can be 1.8 gHz here and
1.9 gHz there. :-)

There are some 2.4gHz cordless phones, but AFAIK they are slowly being phased
out because the poorly designed ones interfere with WiFi, and the good ones
that look for a clear channel can't function in a heavy WiFi environment.

5.8gHz phones, only legal in the Americas, are similar to their 2.4 gHz cousins
and eventually as the 5.8gHz gets taken over by 802.11n networks, they too
will disapear.

BTW, GAP phones are not always useable with other base stations. In order
to access a base station a handset must register with it, and currently that
has to be done by placing both the handset and base station in registration
mode and inserting the handset into the base station. Works in theory, but
every manufacturer uses a different base design and they contacts won't mate.

Geoff.

--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM
New word I coined 12/13/09, "Sub-Wikipedia" adj, describing knowledge or
understanding, as in he has a sub-wikipedia understanding of the situation.
i.e possessing less facts or information than can be found in the Wikipedia.
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Old January 13th 10, 05:21 AM posted to rec.radio.amateur.homebrew
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Default Radio conversion

We now have a 6.2 ghz cordless! Digital cell phones are only good to
reach the nearest microwave tower then then the signal is relayed!
This is most likely the way the Europeans use digital as it's no good
over a distance of 30 miles without being relayed.

The only bennifit of digital is a weak signal demanding cable or
satellite subscriptions$$$$

To amplifi the digital signal enough to be usable at greater distances
will have a domino effect on its technology of being deadly due to
exposure to microwaves to the human brain and redering one impotent!

http://www.articlesbase.com/technolo...se-413085.html

This release of harmful cellphone use will hurt the industry or do
away with it completely!!
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
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Old January 13th 10, 05:42 AM posted to rec.radio.amateur.homebrew
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Default Radio conversion

The Government once conducted a study of the possibility of RF being
harmful but conviniently the results were altered!

Here's a better read for cellphone's harmful effects!

http://www.infowars.com/cell-phone-u...ful-to-unborn/

but mega biz has no feelings where loss of revenue is concerned, they
just lobby in what ever brings the biggest buxI;-)

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Old January 13th 10, 05:38 PM posted to rec.radio.amateur.homebrew
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Default Radio conversion

Geoffrey S. Mendelson wrote:
BTW, GAP phones are not always useable with other base stations. In order
to access a base station a handset must register with it, and currently that
has to be done by placing both the handset and base station in registration
mode and inserting the handset into the base station. Works in theory, but
every manufacturer uses a different base design and they contacts won't mate.


There is no "inserting in the base station" during registration of a
handset with a base station. You only select some function, key-in some
number, and press some button.
My base station does not even have the facility to charge a handset,
there is a separate charger base for that.
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