these guys have an awesome solution www.internetforboats.com no need
for a silly satelite dish as well..

wrote:
these guys have an awesome solution www.internetforboats.com no need
for a silly satelite dish as well..


That's assuming you are always in reach of a cell tower. Where I go
there is no cell towers so that silly satellite dish (or at least the
satphone) and the HF sailmail comes in real handy.

Jeannette

wrote in news:1192424821.682740.294880
@q3g2000prf.googlegroups.com:

www.internetforboats.com

"Signal Range
30-140km or 15-80 miles from a cell tower*"

Horse****....H-O-R-S-E-S-H-I-T!

3G/GSM is on the 1900 Mhz PCS phone system. They're lucky to get
3 miles from a tower and still have a connect.

1900 Mhz is LINE-OF-SIGHT with some awful path attenuation....

80 miles from an airplane at 10,000 feet, maybe....if there's no
other cell towers visible.

"Internet Speed
Broadband speeds up to 3.6mbps*"

* = "network dependent". You might get 3.6mbps if you have your
own network, unshared with others and UNCAPPED by a PCS carrier.
That isn't going to happen, either. The "system" may be capable
of 3.6M bps, but the carriers, in the high RF noise environment,
are lucky to get 500Kbps on a regular basis.

Larry
--
It's about reality and physics....not about marketing and
advertising.

Larry wrote:
wrote in news:1192424821.682740.294880
@q3g2000prf.googlegroups.com:

www.internetforboats.com

"Signal Range
30-140km or 15-80 miles from a cell tower*"

Horse****....H-O-R-S-E-S-H-I-T!

C'mon Larry, don't hold back :-)


3G/GSM is on the 1900 Mhz PCS phone system. They're lucky to get
3 miles from a tower and still have a connect.

That's not "luck" Larry, that's a miracle.


1900 Mhz is LINE-OF-SIGHT with some awful path attenuation....

80 miles from an airplane at 10,000 feet, maybe....if there's no
other cell towers visible.

"Internet Speed
Broadband speeds up to 3.6mbps*"

Yeah, pardon my Guffaw as well...


* = "network dependent". You might get 3.6mbps if you have your
own network, unshared with others and UNCAPPED by a PCS carrier.
That isn't going to happen, either. The "system" may be capable
of 3.6M bps, but the carriers, in the high RF noise environment,
are lucky to get 500Kbps on a regular basis.

Well, I'm sending this on an ATT/Cincular aircard right now, from S. San
Francisco, not 4 miles from the airport. I'd *kill* for 500Kbps on a
regular basis! On a "regular" basis, here on the job site, 50-60Kbps is
a good day - interspersed with PPP errors and service dropouts. My
buddy here on the same site is with Verizon, and he get's "better"
service, but not by much.

Sitting on my boat, across the jetty from the San Diego airport, I can
get maybe 150Kbps on average - - interspersed with PPP errors and
service dropouts. From my boat, my buddies' Verizon card is solid, and
smokes the Cingular card for transfer rates. I'll go Verizon next time...

Keith Hughes

Keith Hughes wrote in
:

Well, I'm sending this on an ATT/Cincular aircard right now,
from S.
San Francisco, not 4 miles from the airport. I'd *kill* for
500Kbps
on a regular basis! On a "regular" basis, here on the job
site,
50-60Kbps is a good day - interspersed with PPP errors and
service
dropouts. My buddy here on the same site is with Verizon, and
he
get's "better" service, but not by much.

Sitting on my boat, across the jetty from the San Diego
airport, I can
get maybe 150Kbps on average - - interspersed with PPP errors
and
service dropouts. From my boat, my buddies' Verizon card is
solid,
and smokes the Cingular card for transfer rates. I'll go
Verizon next
time...

Keith Hughes



A lot of what you're seeing, I'm sure, is caused by "multipath"
causing terrible data errors. Look at any UHF TV running on the
little loop that comes with the TV. See all those "ghosts" we've
seen all our lives on analog TV? That's multipath.

The analog TV scans from top to bottom, left to right, just like
English reads. The horizontal scanning is very fast, indeed, at
about 15,000 lines per second. There is a finite distance in
time being measured as it scans, linearly we hope so it doesn't
distort the picture. The signal that hits the TV first is the
main signal direct from the TV station to you, via the shortest
path, not bouncing off anything. Then, to the right of that
picture, some distance in time AFTER the main signal comes in
direct, is more than one "ghost" pictures, that arrive over a
longer path, later than the main signal. The ghosts are always
to the right as time on the display passes to the right.

ANY RF device, no matter how much wishful thinking and slick
marketing goes on, is subject to this multipath physics. Any
reflective object that bounces RF causes a multipath signal to
arrive late. You can imagine what this does to the very high
speeds being demanded of the broadband uses of UHF cellular
systems. These systems have error correcting schemes built into
the various genres to correct data errors caused by multipath,
noise, etc., but correcting errors TAKES TIME. Taking time is
reflected (no pun intended) in every lowering throughput...lower
data rates...as conditions on the air worsen.

What can you do? Numero Uno is just what the TV viewer
does...PUT UP AN ANTENNA! A directional antenna array such as a
yagi beam, corner reflector, panel antenna like the cell company
uses, that points the ears of your system towards the intended
target reduces the effects of multipath, increases the strength
of the desired signal over the noise level and throughput
increases because less error correction is going on. On TV, it
reduces, or completely eliminates the "ghosts". (On your new
ATSC digital TV, you won't see ghosts. Multipath and noise
simply result in NO DATA and NO PICTURE. You are NOT going to be
watching ATSC digital TV from a MOVING vehicle. That's not going
to happen and I think portable TVs will become a relic.

You could, I suppose, MOVE to FLAT country....(c;



Larry
--
You can tell there's extremely
intelligent life in the universe
because they have never called Earth.

Larry wrote:


What can you do? Numero Uno is just what the TV viewer
does...PUT UP AN ANTENNA!

That works for the boat, but my clients get a little miffed when I start
modifying their office buildings...

My aircard has a connection for an external antenna (Option GT Max 3.6).
Have you run across any decent, easily portable, external antennas?

Keith Hughes

Keith Hughes wrote in news:471522e4$0$502
:

My aircard has a connection for an external antenna (Option GT
Max 3.6).
Have you run across any decent, easily portable, external
antennas?



http://www.mycellularsolutions.com/M...T_ANTENNA.html

Stick a mag mounted Wilson to the top of a steel file cabinet near
a window. You'll notice a big difference.

Larry
--
You can tell there's extremely
intelligent life in the universe
because they have never called Earth.

On Oct 17, 1:15 am, Keith Hughes wrote:
Larry wrote:
wrote in news:1192424821.682740.294880
@q3g2000prf.googlegroups.com:

www.internetforboats.com

"Signal Range
30-140km or 15-80 miles from a cell tower*"

Horse****....H-O-R-S-E-S-H-I-T!

C'mon Larry, don't hold back :-)



3G/GSM is on the 1900 Mhz PCS phone system. They're lucky to get
3 miles from a tower and still have a connect.

That's not "luck" Larry, that's a miracle.



1900 Mhz is LINE-OF-SIGHT with some awful path attenuation....

80 miles from an airplane at 10,000 feet, maybe....if there's no
other cell towers visible.

"InternetSpeed
Broadband speeds up to 3.6mbps*"

Yeah, pardon my Guffaw as well...



* = "network dependent". You might get 3.6mbps if you have your
own network, unshared with others and UNCAPPED by a PCS carrier.
That isn't going to happen, either. The "system" may be capable
of 3.6M bps, but the carriers, in the high RF noise environment,
are lucky to get 500Kbps on a regular basis.

Well, I'm sending this on an ATT/Cincular aircard right now, from S. San
Francisco, not 4 miles from the airport. I'd *kill* for 500Kbps on a
regular basis! On a "regular" basis, here on the job site, 50-60Kbps is
a good day - interspersed with PPP errors and service dropouts. My
buddy here on the same site is with Verizon, and he get's "better"
service, but not by much.

Sitting on my boat, across the jetty from the San Diego airport, I can
get maybe 150Kbps on average - - interspersed with PPP errors and
service dropouts. From my boat, my buddies' Verizon card is solid, and
smokes the Cingular card for transfer rates. I'll go Verizon next time...

Keith Hughes

Keith,

try these guys www.internetforboats.com I understand that they sell
to the USA as well. I have tried on the AT&T network and works perfect
at 140 Km's

On Nov 8, 10:26 pm, wrote:


try these guys www.internetforboats.comI understand that they sell
to the USA as well. I have tried on the AT&T network and works perfect
at 140 Km's- Hide quoted text -


IN an effort to support equal time advertising.......... Just got my
First November issue of Boats & Harbors. On page 59
3/4 page adver for www.sigma6mobile.com They offer several cell based
broadband set ups. Anybody ever use their stuff?
Bob

On Oct 14, 9:07 pm, wrote:
these guys have an awesome solutionwww.internetforboats.com no need
for a silly satelite dish as well..

Humm, maybe ya might not dis the dish so fast...............

Check out BGAN

or read Steve Dashew's little yak.

http://www.panbo.com/archives/2007/0..._on_boats.html

http://www.setsail.com/s_logs/dashew/dashew314.html

From what I read a third bird is set for 2007..... for near total
globe coverage. Broadband anyplace.......... Maybe in a few months
Iridium will get a lot cheeper

Broadband Bob