Best Long Range Cordless Phone???
Andrew Munn
land-line quality within 15km of the base in a dense urban area. I
need it to function inside buildings. Can anyone tell me what brands
are best? Can anyone tell me what frequencies are best? I see that
some are high power 900mhz jobs and some are around 200mhz. Price is
not important.
Thanks!
Allodoxaphobia
> I'm looking for the best long range cordless phone.
I think O. S. B. Laden has one for sale that he's no longer using.
Terran Melconian
Andrew Munn <andre...@hotmail.com> wrote:
>I'm looking for the best long range cordless phone. I need to have
>land-line quality within 15km of the base in a dense urban area. I
I would advise you to give up immediately before you waste any more
time, and rethink your project to not require this. Any country which
has a "dense urban area" is almost certain to have regulatory limits
on output power which make your 15km range a pipe dream. Certainly
all off-the-shelf phones are designed for such countries, because
that's where the large markets are.
Alan 'A.J.' Franzman
news:3c92884a.01122...@posting.google.com...
15km? With a CORDLESS phone??? You've got to be kidding! I'd be
surprised if there are any that can even reach 1km in an urban area!
1-2km in a flat rural area seems possible. I'm sure there will be
responses here if I'm very much mistaken.
If you're really desperate for this kind of technology, check into
amateur radio. I know there are some repeaters and such that one can
place phone calls with using an HT. Of course, any calls so placed
would be far more public than any made using a cellular or wireless
phone.
«
--
--------------------
Alan "A.J." Franzman
Email: a.j.franzman at verizon dot net
--------------------
Al Klein
posted in alt.cellular-phone-tech:
>I'm looking for the best long range cordless phone. I need to have
>land-line quality within 15km of the base in a dense urban area. I
>need it to function inside buildings.
You have only one hope - a repeater on a high building in that urban
area with a link to the POTS. Standard puts out (or, at least, used
to put out) a few turnkey systems. (Plug it into power and a phone
line, plug in the antenna cable, turn it on and go.) Of course it
will have to be licensed, but commercial licenses are easy to obtain.
>Can anyone tell me what frequencies are best?
150 MHz would give you best coverage, but the best frequency is one
that's not in use (and in a major metro area, they all will be, right
up through 900 MHz).
>I see that some are high power 900mhz jobs and some are around 200mhz.
You don't need much more than 20 watts with a 10db antenna.
> Price is not important.
That's good, because we're not talking $29.95. (Look for upward of
$600 with antenna. Then you need the portable - another few hundred.)
--
Al - rukbat at optonline dot net
Bruce Lane
andre...@hotmail.com says...
Price may not be important, but legality of operation may well be.
The units you describe are illegal in the United States (you never
mentioned what country you're posting from), and operating such within US
boundaries can bring the FCC down on your back like a herd of wild
buffalo. They can easily impose large fines, and even prison sentences.
Cellular and PCS phones are getting awfully inexpensive nowadays.
Would not something like that better suit your needs?
--
Bruce Lane, Owner and Head Hardware Heavy,
Blue Feather Technologies -- http://www.bluefeathertech.com
Amateur Radio: KC7GR (Formerly WD6EOS) since 12-77.
kyrrin (a/t) bluefeathertech dot-com (Reassemble to use)
"I'll get a life when someone demonstrates to me it would be superior to
what I have now..." (Taki Kogoma)
Bruce Lane
a.j.fr...@null.com.invalid says...
> If you're really desperate for this kind of technology, check into
> amateur radio. I know there are some repeaters and such that one can
> place phone calls with using an HT. Of course, any calls so placed
> would be far more public than any made using a cellular or wireless
> phone.
One limitation with ham radio autopatching (which is what you're
describing). It is forbidden to pass commercial traffic. Any calls made
that way must be strictly personal in nature due to FCC regs.
L. M. Rappaport
provider with a good network. Even then, solid 15 km coverage is
likely to be "iffy". Your second best bet would be a commercial
repeater with a full duplex phone patch and similar handheld unit.
That is limited by FCC rules. While a previous poster suggested 150
mhz, it is almost certainly not available; probably your best bet will
be 450 mhz. Whether or not you even qualify for such a license will
be determined by the nature of your business. As others have said,
you could do this via amateur radio, but you will be limited to
personal calls only - no commercial activity.
You can do up to a few miles with a long range 900 mhz cordless phone
such as the EnGenius 920, but that is all, and it's line of sight to a
good outdoor antenna. Anything between you and the antenna and the
range will drop to less than 1/2 mile. (I have one - this is from
experience!)
Larry
--
ra...@lmr.com
andre...@hotmail.com (Andrew Munn) wrote (with possible editing):
Gator
do about five miles in open space
no intervening buildings etc. However,
if you are in an area which caters to
foreign tourists such as Orlando, FL
some of the electronics outlets usuallly
run by foreigners have phones with
more than the USA legal limit. If
you want to dally around British sites
you can buy one which will probably
get you ten miles, but which will probably
be illegal in the US and which will require
an antenna on your rooftop. You might
look into cellular such as Nextel inasmuch
as they use mobile repeaters. Dense urban
area, you might give a shot to the FRS
but would need an interface to your
phone line. Luck
"Andrew Munn" <andre...@hotmail.com> wrote in message
news:3c92884a.01122...@posting.google.com...
Alan
product.
How about microwave trasmitter?
http://www.fullspec.com/wireles.htm
Al Klein
in alt.cellular-phone-tech:
>Dense urban
>area, you might give a shot to the FRS
>but would need an interface to your
>phone line.
FRS doesn't have much range in dense urban areas - that's just the
type of terrain it's NOT designed for.
Al Klein
in alt.cellular-phone-tech:
>It is not possible to buy such a device, at least not off-the-shelf
>product.
>How about microwave trasmitter?
>http://www.fullspec.com/wireles.htm
He wants something portable. Did you see the dish? Do you think he
wants to carry something like that around on his shoulder?
(Besides, microwave is strictly line of sight.)
Alan
I though he wants to use his home phone while he is in office), if he
can limit his area of access (i.e. inside a building), he could use
whatever means to trasmit signal and convert the signal back to radio
signal for portable device access.
Alan
Al Klein
alt.cellular-phone-tech:
>Thanks for reminding me.
>I though he wants to use his home phone while he is in office), if he
>can limit his area of access (i.e. inside a building), he could use
>whatever means to trasmit signal and convert the signal back to radio
>signal for portable device access.
If he's limiting it to within a building he can use any currently
available high powered cordless phone.
m...@here.com
> I'm looking for the best long range cordless phone. I need to have
> land-line quality within 15km of the base in a dense urban area.
Your D.O.A.
Commercial cellular base stations have a maximum range of about
20 miles (32 km) in a flat, *rural* area, but practical ranges
rarely exceed 10 miles, less in densely populated areas.
> I
> need it to function inside buildings. Can anyone tell me what brands
> are best? Can anyone tell me what frequencies are best? I see that
> some are high power 900mhz jobs and some are around 200mhz. Price is
> not important.
Get a cell/satellite phone, or a shortwave/CB radio.