BoatBanter.com

BoatBanter.com (https://www.boatbanter.com/)
-   Cruising (https://www.boatbanter.com/cruising/)
-   -   wi fi in harbors (https://www.boatbanter.com/cruising/26544-wi-fi-harbors.html)

larry December 26th 04 10:14 AM

wi fi in harbors
 
I just got a new laptop with wi - fi aka wireless LAN. Wow is all I
can say. After moving a couple of times in Christiansted, St Croix, I
got myself in a hotspot where I can connect and stay connected in the
cockpit, downloading files at 3 MB per minute. Using web mail and
google newsgroups, I have almost all the services that a traditional
ISP would provide. A major exception is the lack of encryption - thus
the security to do e-commerce. If I run the computer at the nav
station, I get much weaker connectivity where I can connect sometimes
and get cut off and have jagged and spiky connectivity. There is no
port or jack on the laptop (a Sony VIAO PCG-GRT260G) for an external
antenna and I am looking for a way to send the "clear line of sight"
good signal down to the nav station. Any Ideas? TIA Larry


Lee Haefele December 26th 04 10:50 AM

You can get a USB-wireless adapter. These seem to have better range that
built in antennas, plus you can put a long cord on it.
Lee Haefele
Nauticat 33 Alesto
boat currently anchored Salinas, PR, captain at home
"larry" wrote in message
ups.com...
I just got a new laptop with wi - fi aka wireless LAN. Wow is all I
can say. After moving a couple of times in Christiansted, St Croix, I
got myself in a hotspot where I can connect and stay connected in the
cockpit, downloading files at 3 MB per minute. Using web mail and
google newsgroups, I have almost all the services that a traditional
ISP would provide. A major exception is the lack of encryption - thus
the security to do e-commerce. If I run the computer at the nav
station, I get much weaker connectivity where I can connect sometimes
and get cut off and have jagged and spiky connectivity. There is no
port or jack on the laptop (a Sony VIAO PCG-GRT260G) for an external
antenna and I am looking for a way to send the "clear line of sight"
good signal down to the nav station. Any Ideas? TIA Larry




Steve December 26th 04 04:12 PM

Your problem can be solved by using a USB wireless card that comes with a
jack for an external antenna. The only one that I have found that comes with
this feature is the Orinoco Silver.

There are a wide variety of external antennas available with signal gain
around 3-10 db, for about $30. I saw a large selection at CompUSA the other
day. These all seemed to be omni directional. If your objective is to target
a spacific hot spot, then build yourself a directional one.

I have played with this on the boat and found I the Nav station to poor a
location for normal wi-fi without the external antenna. However, around the
house, I am able to take my laptop with standard internal or USB wireless
some distance from the hub, into my shop or in my vehicle with good
connectivity.

However, while visiting my son, in his home, it made a difference if the
doors were closed between the living room and his hub which was about 3
rooms away. I think the difference here was the fact that his house has lath
and plaster walls while at another sons home with sheet rock walls, there
seemed to be little noticeable effect by "clear line of sight". I fact,
while sitting in his house, I can find neighbors hubs up to 6 houses away.

I am still learning about the limitations of wi-fi and hot spots and hope
that there will still be a few left with open access when I finally figure
it all out.

Steve
s/v Good Intentions



Akka December 26th 04 08:08 PM

larry wrote:
There is no
port or jack on the laptop (a Sony VIAO PCG-GRT260G) for an external
antenna and I am looking for a way to send the "clear line of sight"
good signal down to the nav station. Any Ideas? TIA Larry


We have a directional antenna by "Buffalo"; seems to work well for
distances up to several hundred meters. The Buffalo card fits into the
PCIO slot on our laptop; we run the cord up through a hatch and tie the
antenna to the sail cover, facing the shore-based RX/TX.

Rob


Don December 27th 04 03:39 AM


"Steve" wrote in message
...
Your problem can be solved by using a USB wireless card that comes with a
jack for an external antenna. The only one that I have found that comes
with this feature is the Orinoco Silver.


Another way is to add a PCMCIA (Cardbus) wireless card that has a full 200mw
transmit power and an external antenna jack. SMC makes both - model
SMC2536W-B for the card and SMCANT-0M5 for the antenna. I bought mine from
nextwarehouse.com for $77 for both. This combination works much better than
the builtin wireless NIC in my laptop, and the software they include is
better also.

Don




larry December 27th 04 10:23 AM

Hi Don tnx for the specifics. I will look up specs ...in casual
peripheral browsing, I haven't noticed USB WLAN's.Larry


larry December 27th 04 10:26 AM

Hi Steve, as far as antenna design goes, while the gain inherent in a
directional antenna is desirable, swinging on a hook at anchor means
needing a wide arc of reception. I would like to figure out a good
"dish" reflector with a wide acceptance angle maybe a properly shaped
stainless bowl...need to figure out the drive element. Larry


larry December 27th 04 10:30 AM

A PCMIA card sounds like the way to go.I'll start looking at antennas
and patterns. An adjustable focus (like in a flashlight ) would be
cool. Larry


larry December 27th 04 11:06 AM

A PCMIA card sounds like the way to go.I'll start looking at antennas
and patterns. An adjustable focus (like in a flashlight ) would be
cool. Larry


Wayne.B December 27th 04 01:26 PM

On 27 Dec 2004 02:26:42 -0800, "larry" wrote:

I would like to figure out a good
"dish" reflector with a wide acceptance angle maybe a properly shaped
stainless bowl...need to figure out the drive element.


==========================================

Probably no such animal, a corner reflector might be closer to what
you're looking for. You can get 8 to 10 dbi supposedly, and they are
easy to make using foil faced cardboard.


Matt Colie December 27th 04 02:06 PM

The idea is good, but the supplier lacks something.

At one time my little network was all SMC. But some time ago I had
trouble with the WiFi router. When I called their number for
assistance, I was told that the unit purchased at CompUSA and at full
price was too old for telephone support, but I could try e-mail support
and expect an answer in two or three days.

= It got replaced that afternoon. Would you be happen if your office
net were dead for three days ??

Now I am having trouble using my 802.11b card on the multiple networks
that I have to go between while I am on this consulting job. I used
SMC's e-mail support request to attempt to find out if there might be a
remedy. As this was over a week ago, I will be replacing a prefectly
good piece for a lack of support this afternoon.

Others may have had better experiences with this supplier and some may
have had worst with others, but this was my experience.

Matt Colie



Don wrote:
"Steve" wrote in message
...

Your problem can be solved by using a USB wireless card that comes with a
jack for an external antenna. The only one that I have found that comes
with this feature is the Orinoco Silver.



Another way is to add a PCMCIA (Cardbus) wireless card that has a full 200mw
transmit power and an external antenna jack. SMC makes both - model
SMC2536W-B for the card and SMCANT-0M5 for the antenna. I bought mine from
nextwarehouse.com for $77 for both. This combination works much better than
the builtin wireless NIC in my laptop, and the software they include is
better also.

Don





Skip Gundlach December 27th 04 04:27 PM

Larry, would you mind contacting me off-list? I'd like to pick your brain a
bit about STX and wifi.

Thanks.

L8R

Skip (my name, all one word, at earthlink dot net)

--
Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain
"larry" wrote in message
ups.com...
I just got a new laptop with wi - fi aka wireless LAN. Wow is all I
can say. After moving a couple of times in Christiansted, St Croix, I
got myself in a hotspot where I can connect and stay connected in the
cockpit, downloading files at 3 MB per minute. Using web mail and
google newsgroups, I have almost all the services that a traditional
ISP would provide. A major exception is the lack of encryption - thus
the security to do e-commerce. If I run the computer at the nav
station, I get much weaker connectivity where I can connect sometimes
and get cut off and have jagged and spiky connectivity. There is no
port or jack on the laptop (a Sony VIAO PCG-GRT260G) for an external
antenna and I am looking for a way to send the "clear line of sight"
good signal down to the nav station. Any Ideas? TIA Larry




Falky foo December 27th 04 07:45 PM

Plus with one of those, you can get a yagi directional "cantenna" (find on
Ebay) for a song and increase your distance immeasurably.


"Don" wrote in message
...

"Steve" wrote in message
...
Your problem can be solved by using a USB wireless card that comes with

a
jack for an external antenna. The only one that I have found that comes
with this feature is the Orinoco Silver.


Another way is to add a PCMCIA (Cardbus) wireless card that has a full

200mw
transmit power and an external antenna jack. SMC makes both - model
SMC2536W-B for the card and SMCANT-0M5 for the antenna. I bought mine

from
nextwarehouse.com for $77 for both. This combination works much better

than
the builtin wireless NIC in my laptop, and the software they include is
better also.

Don






Bruce in Alaska December 27th 04 07:57 PM

In article .com,
"larry" wrote:

A PCMIA card sounds like the way to go.I'll start looking at antennas
and patterns. An adjustable focus (like in a flashlight ) would be
cool. Larry


Never seen one of those, (adjustable focus (like in a flashlight ))
but I have used WiFi for links up to 16 miles with external antennas.
I have an open WiFi connection that I make available for vessels
that come visit my port in Alaska, using WAP's located at the dock,
and on 60' antenna towers at both ends of town. Works very well,
unless your an XP user and then it is problematic due to MicroSquuash's
truely BAD Software. 2000Pro works very well.

Bruce in alaska
--
add a 2 before @

larry December 27th 04 10:18 PM

I am just now using wireless LAN for the first time and the "micro
squuash" xp uatility has almost no user interface. I am about to get a
PCMIA WLS LAN card and use it's software. It needs to have an
external ant in (prefer BNC) and then good user software. Any
suggestions or warnings out there? BTW thanks everyone for the many
relevant responses, Larry
Bruce in Alaska wrote:
In article .com,
"larry" wrote:

A PCMIA card sounds like the way to go.I'll start looking at

antennas
and patterns. An adjustable focus (like in a flashlight ) would be
cool. Larry


Never seen one of those, (adjustable focus (like in a flashlight ))
but I have used WiFi for links up to 16 miles with external antennas.
I have an open WiFi connection that I make available for vessels
that come visit my port in Alaska, using WAP's located at the dock,
and on 60' antenna towers at both ends of town. Works very well,
unless your an XP user and then it is problematic due to

MicroSquuash's
truely BAD Software. 2000Pro works very well.

Bruce in alaska
--
add a 2 before @



sded December 27th 04 11:05 PM

You might also look at USB wireless adapters. I get excellent results from a
D-Link DWL120+ -great sensitivity, and I can get it up on the dodger and out of
the boat shadow, even though it has only a small dipole antenna. The D-Link+
vendor software (actually from TI) works well under XP. The DWL120+ had the
best sensitivity I could find by far a year or so ago, but there may be much
better chipsets on the market now. You can also get fairly good omnis for some
of the pc cards, but the directional ones were too hard to point on a boat in my
experience.
"larry" wrote:

I am just now using wireless LAN for the first time and the "micro
squuash" xp uatility has almost no user interface. I am about to get a
PCMIA WLS LAN card and use it's software. It needs to have an
external ant in (prefer BNC) and then good user software. Any
suggestions or warnings out there? BTW thanks everyone for the many
relevant responses, Larry
Bruce in Alaska wrote:
In article .com,
"larry" wrote:

A PCMIA card sounds like the way to go.I'll start looking at

antennas
and patterns. An adjustable focus (like in a flashlight ) would be
cool. Larry


Never seen one of those, (adjustable focus (like in a flashlight ))
but I have used WiFi for links up to 16 miles with external antennas.
I have an open WiFi connection that I make available for vessels
that come visit my port in Alaska, using WAP's located at the dock,
and on 60' antenna towers at both ends of town. Works very well,
unless your an XP user and then it is problematic due to

MicroSquuash's
truely BAD Software. 2000Pro works very well.

Bruce in alaska
--
add a 2 before @



Johnhh December 28th 04 06:17 AM

I currently use a high power PCMCIA card with a 6dbi omni indoor antennae.
This works well for 1/4 to 1/2 mile if I put the antenna on the cabin roof,
but this is very impractical, especially if it is raining. What I would
like to do is mount a permanent exterior antennae and run it through a
network bridge to my own onboard wireless network. Can anyone recommend a
good high power bridge and antennae?

john

"larry" wrote in message
ups.com...
I just got a new laptop with wi - fi aka wireless LAN. Wow is all I
can say. After moving a couple of times in Christiansted, St Croix, I
got myself in a hotspot where I can connect and stay connected in the
cockpit, downloading files at 3 MB per minute. Using web mail and
google newsgroups, I have almost all the services that a traditional
ISP would provide. A major exception is the lack of encryption - thus
the security to do e-commerce. If I run the computer at the nav
station, I get much weaker connectivity where I can connect sometimes
and get cut off and have jagged and spiky connectivity. There is no
port or jack on the laptop (a Sony VIAO PCG-GRT260G) for an external
antenna and I am looking for a way to send the "clear line of sight"
good signal down to the nav station. Any Ideas? TIA Larry




Harbin December 30th 04 08:25 AM

You can squeeze some range out from info below.
Harbin KG6UR0
http://www.guerrilla.net/reference/a...r_omni_lowpwr/
http://www.guerrilla.net/reference/a...ollinear_omni/
http://www.broadbandreports.com/foru...wlan~mode=flat
http://www.turnpoint.net/wireless/has.html
http://martybugs.net/wireless/antennacomp.cgi
http://seattlewireless.net/index.cgi...70bd394fd9b069
http://seattlewireless.net/
http://www.guerrilla.net/



"Wayne.B" wrote in message
...
On 27 Dec 2004 02:26:42 -0800, "larry" wrote:

I would like to figure out a good
"dish" reflector with a wide acceptance angle maybe a properly shaped
stainless bowl...need to figure out the drive element.


==========================================

Probably no such animal, a corner reflector might be closer to what
you're looking for. You can get 8 to 10 dbi supposedly, and they are
easy to make using foil faced cardboard.




larry December 31st 04 08:19 AM

Wayne, Tnx for the specific how to links. I still have to find a card
(preferably USB so that I don't have a PCMIA card sticking out of the
laptop's body being vulnerable to physical trauma). I hope to find an
antenna connector that locks in place such as a BNC or something other
than a 3.5mm jack like the TV tuner on the laptop uses...73's Larry
KD7KRX


Matt O'Toole January 2nd 05 01:03 AM

Johnhh wrote:

I currently use a high power PCMCIA card with a 6dbi omni indoor
antennae. This works well for 1/4 to 1/2 mile if I put the antenna on
the cabin roof, but this is very impractical, especially if it is
raining. What I would like to do is mount a permanent exterior
antennae and run it through a network bridge to my own onboard
wireless network. Can anyone recommend a good high power bridge and
antennae?


This is exactly what I'd like to do. I'd like to find an omni antenna w/ bridge
to mount on the mast or someplace. If the bridge puts out a healthy signal,
there would be no need to run wires except for power. For that matter, a few
solar cells and a battery inside might take care of that issue too, for a
completely self containted unit. I'm quite surprised no one seems to be
targeting boaters with kits like this, especially considering the "yachtsman's
discount" to be tacked on. (Does it work with no hassle? Write the guy a
check!)

I've been trying to use marina WiFi networks with little success. Most of them
really stink, with little coverage and weak signals. I'm often wandering the
docks carrying my laptop, looking for just the right spot to get enough
reception to do anything. The prices companies like Broadband Xpress charge are
pretty aggressive. Considering the service is useless more often than not, it
winds up being a bit of a ripoff. However, if I had a good antenna setup it
might actually be useful. With all this supposed WiFi access around, I'm still
checking my email through a cell phone. Currently the best strategy is to find
a nearby coffeehouse, which often have free WiFi.

Matt O.



Don January 3rd 05 07:01 AM

Broadband Xpress has their "Networked Boat" package that seems like just
what you're looking for. Pricey, though, and I'd bet you can find the
components elsewhere for less money.

I've found BBX to provide very good service, but not until I replaced my
standard wifi PCMCIA card with a high-power card such as the one sold by BBX
for $109. I was able to buy that exact same card (made by SMC) for $55 from
nextwarehouse.com. Made a huge difference - testing with my standard
Netgear card at 30% signal, up to 100% with the SMC card. Adding the 6dbi
indoor antenna is often not needed, but it does help in extreme cases. I
have been reaching it out the cabin hatch and just setting it on the
coachroof.

Don

"Matt O'Toole" wrote in message
...
Johnhh wrote:

I currently use a high power PCMCIA card with a 6dbi omni indoor
antennae. This works well for 1/4 to 1/2 mile if I put the antenna on
the cabin roof, but this is very impractical, especially if it is
raining. What I would like to do is mount a permanent exterior
antennae and run it through a network bridge to my own onboard
wireless network. Can anyone recommend a good high power bridge and
antennae?


This is exactly what I'd like to do. I'd like to find an omni antenna w/
bridge
to mount on the mast or someplace. If the bridge puts out a healthy
signal,
there would be no need to run wires except for power. For that matter, a
few
solar cells and a battery inside might take care of that issue too, for a
completely self containted unit. I'm quite surprised no one seems to be
targeting boaters with kits like this, especially considering the
"yachtsman's
discount" to be tacked on. (Does it work with no hassle? Write the guy a
check!)

I've been trying to use marina WiFi networks with little success. Most of
them
really stink, with little coverage and weak signals. I'm often wandering
the
docks carrying my laptop, looking for just the right spot to get enough
reception to do anything. The prices companies like Broadband Xpress
charge are
pretty aggressive. Considering the service is useless more often than
not, it
winds up being a bit of a ripoff. However, if I had a good antenna setup
it
might actually be useful. With all this supposed WiFi access around, I'm
still
checking my email through a cell phone. Currently the best strategy is to
find
a nearby coffeehouse, which often have free WiFi.

Matt O.





Johnhh January 3rd 05 09:00 AM

Actually Don, their "Networked Boat" package is just what I need, but I
just can't justify the $750 price tag on it. I don't have a good enough
grasp of Wi-Fi hardware to know what I can get as a lower cost substitute -
I'm afraid I'd end up spending that much anyway getting things that didn't
work with their system. I just haven't found anything yet that I feel
confident in.

I couldn't even get on line until I got the high power card and 6dbi
interior antenna. Since I have a sailboat, I usually can't get good enough
reception from in the cabin.

John

"Don" wrote in message
...
Broadband Xpress has their "Networked Boat" package that seems like just
what you're looking for. Pricey, though, and I'd bet you can find the
components elsewhere for less money.

I've found BBX to provide very good service, but not until I replaced my
standard wifi PCMCIA card with a high-power card such as the one sold by
BBX for $109. I was able to buy that exact same card (made by SMC) for
$55 from nextwarehouse.com. Made a huge difference - testing with my
standard Netgear card at 30% signal, up to 100% with the SMC card. Adding
the 6dbi indoor antenna is often not needed, but it does help in extreme
cases. I have been reaching it out the cabin hatch and just setting it on
the coachroof.

Don

"Matt O'Toole" wrote in message
...
Johnhh wrote:

I currently use a high power PCMCIA card with a 6dbi omni indoor
antennae. This works well for 1/4 to 1/2 mile if I put the antenna on
the cabin roof, but this is very impractical, especially if it is
raining. What I would like to do is mount a permanent exterior
antennae and run it through a network bridge to my own onboard
wireless network. Can anyone recommend a good high power bridge and
antennae?


This is exactly what I'd like to do. I'd like to find an omni antenna w/
bridge
to mount on the mast or someplace. If the bridge puts out a healthy
signal,
there would be no need to run wires except for power. For that matter, a
few
solar cells and a battery inside might take care of that issue too, for a
completely self containted unit. I'm quite surprised no one seems to be
targeting boaters with kits like this, especially considering the
"yachtsman's
discount" to be tacked on. (Does it work with no hassle? Write the guy
a
check!)

I've been trying to use marina WiFi networks with little success. Most
of them
really stink, with little coverage and weak signals. I'm often wandering
the
docks carrying my laptop, looking for just the right spot to get enough
reception to do anything. The prices companies like Broadband Xpress
charge are
pretty aggressive. Considering the service is useless more often than
not, it
winds up being a bit of a ripoff. However, if I had a good antenna setup
it
might actually be useful. With all this supposed WiFi access around, I'm
still
checking my email through a cell phone. Currently the best strategy is
to find
a nearby coffeehouse, which often have free WiFi.

Matt O.







Vic Fraenckel January 3rd 05 12:02 PM

I'm wondering about the legality of just poking an antenna up and using any
old service that happens to be in the neighborhood. Granted, people are
stupid for not securing their wifi network, but there is no getting around
the fact that to use someone else's broadband connection with out their
permission is theft-of-service. Also, doing so diminishes the "owner's"
bandwidth. You should also know that a diligent "owner" can find out if
there is an unauthorized connection to "his" network by simply querying his
WAP.

Just my 2 cents.

Vic
--
__________________________________________________ ______

Victor Fraenckel - The Windman
victorf ATSIGN windreader DOTcom
KC2GUI

Home of the WindReader Electronic Theodolite
Read the WIND

"People sleep peacefully in their beds at night only because rough
men stand ready to do violence on their behalf."
-George Orwell



Glenn Ashmore January 3rd 05 04:09 PM

What antenna are you using with the SMC card? What kind of connector does
it take to plug into it?

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"Don" wrote in message
...
Broadband Xpress has their "Networked Boat" package that seems like just
what you're looking for. Pricey, though, and I'd bet you can find the
components elsewhere for less money.

I've found BBX to provide very good service, but not until I replaced my
standard wifi PCMCIA card with a high-power card such as the one sold by

BBX
for $109. I was able to buy that exact same card (made by SMC) for $55

from
nextwarehouse.com. Made a huge difference - testing with my standard
Netgear card at 30% signal, up to 100% with the SMC card. Adding the 6dbi
indoor antenna is often not needed, but it does help in extreme cases. I
have been reaching it out the cabin hatch and just setting it on the
coachroof.

Don

"Matt O'Toole" wrote in message
...
Johnhh wrote:

I currently use a high power PCMCIA card with a 6dbi omni indoor
antennae. This works well for 1/4 to 1/2 mile if I put the antenna on
the cabin roof, but this is very impractical, especially if it is
raining. What I would like to do is mount a permanent exterior
antennae and run it through a network bridge to my own onboard
wireless network. Can anyone recommend a good high power bridge and
antennae?


This is exactly what I'd like to do. I'd like to find an omni antenna

w/
bridge
to mount on the mast or someplace. If the bridge puts out a healthy
signal,
there would be no need to run wires except for power. For that matter,

a
few
solar cells and a battery inside might take care of that issue too, for

a
completely self containted unit. I'm quite surprised no one seems to be
targeting boaters with kits like this, especially considering the
"yachtsman's
discount" to be tacked on. (Does it work with no hassle? Write the guy

a
check!)

I've been trying to use marina WiFi networks with little success. Most

of
them
really stink, with little coverage and weak signals. I'm often

wandering
the
docks carrying my laptop, looking for just the right spot to get enough
reception to do anything. The prices companies like Broadband Xpress
charge are
pretty aggressive. Considering the service is useless more often than
not, it
winds up being a bit of a ripoff. However, if I had a good antenna

setup
it
might actually be useful. With all this supposed WiFi access around,

I'm
still
checking my email through a cell phone. Currently the best strategy is

to
find
a nearby coffeehouse, which often have free WiFi.

Matt O.







Glenn Ashmore January 3rd 05 04:35 PM

It looks like you could get a Linksys WET11 for about $70, a work group
switch for $25 and a good external omnidirectional antenna and do the same
thing.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"Johnhh" wrote in message
...
Actually Don, their "Networked Boat" package is just what I need, but I
just can't justify the $750 price tag on it. I don't have a good enough
grasp of Wi-Fi hardware to know what I can get as a lower cost

substitute -
I'm afraid I'd end up spending that much anyway getting things that didn't
work with their system. I just haven't found anything yet that I feel
confident in.

I couldn't even get on line until I got the high power card and 6dbi
interior antenna. Since I have a sailboat, I usually can't get good enough
reception from in the cabin.

John

"Don" wrote in message
...
Broadband Xpress has their "Networked Boat" package that seems like just
what you're looking for. Pricey, though, and I'd bet you can find the
components elsewhere for less money.

I've found BBX to provide very good service, but not until I replaced my
standard wifi PCMCIA card with a high-power card such as the one sold by
BBX for $109. I was able to buy that exact same card (made by SMC) for
$55 from nextwarehouse.com. Made a huge difference - testing with my
standard Netgear card at 30% signal, up to 100% with the SMC card.

Adding
the 6dbi indoor antenna is often not needed, but it does help in extreme
cases. I have been reaching it out the cabin hatch and just setting it

on
the coachroof.

Don

"Matt O'Toole" wrote in message
...
Johnhh wrote:

I currently use a high power PCMCIA card with a 6dbi omni indoor
antennae. This works well for 1/4 to 1/2 mile if I put the antenna on
the cabin roof, but this is very impractical, especially if it is
raining. What I would like to do is mount a permanent exterior
antennae and run it through a network bridge to my own onboard
wireless network. Can anyone recommend a good high power bridge and
antennae?

This is exactly what I'd like to do. I'd like to find an omni antenna

w/
bridge
to mount on the mast or someplace. If the bridge puts out a healthy
signal,
there would be no need to run wires except for power. For that matter,

a
few
solar cells and a battery inside might take care of that issue too, for

a
completely self containted unit. I'm quite surprised no one seems to

be
targeting boaters with kits like this, especially considering the
"yachtsman's
discount" to be tacked on. (Does it work with no hassle? Write the

guy
a
check!)

I've been trying to use marina WiFi networks with little success. Most
of them
really stink, with little coverage and weak signals. I'm often

wandering
the
docks carrying my laptop, looking for just the right spot to get enough
reception to do anything. The prices companies like Broadband Xpress
charge are
pretty aggressive. Considering the service is useless more often than
not, it
winds up being a bit of a ripoff. However, if I had a good antenna

setup
it
might actually be useful. With all this supposed WiFi access around,

I'm
still
checking my email through a cell phone. Currently the best strategy is
to find
a nearby coffeehouse, which often have free WiFi.

Matt O.









Don January 3rd 05 05:36 PM

I'm certainly not suggesting connections to non-public services. While I do
often see "mystery" SSIDs I have not joined the ranks of hunter-gatherers
that jump onto any available wifi link. Marina sites are becoming more
prevalent (as are RV sites, etc) and for my occasional use I will pay $7 for
a 24-hour period. The gripe is when I can't get a reliable connection in an
area that has wifi advertised.

Don

"Vic Fraenckel" wrote in message
.. .
I'm wondering about the legality of just poking an antenna up and using
any
old service that happens to be in the neighborhood. Granted, people are
stupid for not securing their wifi network, but there is no getting around
the fact that to use someone else's broadband connection with out their
permission is theft-of-service. Also, doing so diminishes the "owner's"
bandwidth. You should also know that a diligent "owner" can find out if
there is an unauthorized connection to "his" network by simply querying
his
WAP.

Just my 2 cents.

Vic
--
__________________________________________________ ______

Victor Fraenckel - The Windman
victorf ATSIGN windreader DOTcom
KC2GUI

Home of the WindReader Electronic Theodolite
Read the WIND

"People sleep peacefully in their beds at night only because rough
men stand ready to do violence on their behalf."
-George Orwell





Don January 3rd 05 05:49 PM

I often don't use an external antenna, but the SMC card has a removeable
plastic antenna and micro-coax connectors (MMCX) for an external antenna.
The SMC part numbers and nextwarehouse.com SKU numbers are

SMCANT-OM5 $22.37 ANTENNA EXTERNAL OMNI W/MMCX (nextwarehouse 46227)
SMC2532W-B $54.86 Elite Connect 2.4GHZ 802.11B HIGH POWER WIRELESS
PCMCIA (nextwarehouse 46183)

SMC has other antennas and higher-speed cards also - see www.smc.com

The removeable plastic antenna is a bit fragile - the first day I had this
card my dog got tangled in the laptop power cord and pulled my laptop to the
carpeted floor. No damage except that plastic antenna got mangled and it
pulled one of the connectors out. There was no damage to the card itself -
it's well encased in a metal shell. However, a replacement antenna cost me
$20 from SMC. I know one guy who leaves the PCMCIA card in his computer all
the time and just plugs the antenna in when needed. I worried that this
might cause problems - running the transmitter circuitry into an open
unterminated load - but he has not had any problems in a year of daily use.
I keep my cheap Netgear card in the computer most of the time and only put
the SMC card in when needed. It's hot-swappable.

Don

"Glenn Ashmore" wrote in message
news:u6eCd.9220$EG1.5775@lakeread04...
What antenna are you using with the SMC card? What kind of connector does
it take to plug into it?

--
Glenn Ashmore




Don January 3rd 05 06:22 PM

I'd be interested in knowing what marinas you have difficulty with. I also
have a sailboat and this weekend I was in Bellingham's Squalicum Harbor. My
slip at Gate 6 is in a spot that had very bad reception from BBX, and at
most times of the day I could not make a reliable connection with the
standard wifi card. It was sometimes better (I suspect high tide is better
than low tide). With the high-powered card this weekend I got a rock-solid
100% connection for both uplink and downlink not even using the external
antenna.

I had similar experiences with BBX in Nanaimo at the dock, and at Silva Bay
(Gulf Islands) at anchor. I spent quite a few minutes of cell time on the
help line trying to get connected. At the time I did not have the
high-power card but I'm pretty sure that this would take care of the
situation. I've been using BBX service occasionally for a couple years and
over the past year or so the BBX web site has steadily increased their
insistence that you must have high-power gear to use their service. In my
experience this is often not the case, but sometimes it is very true. I
guess with all the local interference of multiple wifi users, good reception
in populated areas is getting very difficult to achieve.

I agree that this gear can be very expensive, and trial-and-error is not my
favorite way to go. Also, on a sailboat I have wondered about antenna
placement. I would think that the masthead would be the ideal location as
far as reception and protection from lines and sails, but there are a couple
of problems - the 60-foot+ cable run might be too long, and the energy from
keying the VHF at 25 watts with its antenna right next to the wifi antenna
might fry the wifi receiver. Are the frequencies enough different to avoid
this? I thought about putting a wifi antenna at spreader level, maybe 20
feet above the deck, but having the antenna parallel and close to the
grounded mast might reduce its effectiveness. Maybe halfway out on a
spreader, leaving it vulnerable to flapping sails? These problems seem more
troubling than finding the components for the right price. By the way, I
have confirmed that the SMC high-power card that I bought is identical to
the one sold by BBX, even though the brand and labeling is different. The
FCC registration numbers on the card itself match. I'm really not sure who
actually manufactures this card, but there are at least a few different
labels on it.

Don

"Johnhh" wrote in message
...
Actually Don, their "Networked Boat" package is just what I need, but I
just can't justify the $750 price tag on it. I don't have a good enough
grasp of Wi-Fi hardware to know what I can get as a lower cost
substitute - I'm afraid I'd end up spending that much anyway getting
things that didn't work with their system. I just haven't found anything
yet that I feel confident in.

I couldn't even get on line until I got the high power card and 6dbi
interior antenna. Since I have a sailboat, I usually can't get good enough
reception from in the cabin.

John

"Don" wrote in message
...
Broadband Xpress has their "Networked Boat" package that seems like just
what you're looking for. Pricey, though, and I'd bet you can find the
components elsewhere for less money.




Johnhh January 3rd 05 07:04 PM

My boat is moored in Anacortes at Cap Sante and this is where I do the vast
majority of my connecting. From where I'm located I am pretty sure my only
problems are getting the antenna high enough and I'm looking for a more
permanent solution than my indoor antenna attached to the wi-fi card. The
cable isn't long enough, I can't use it in the rain and it is only a matter
of time before that micro connector to the card gives out.

I have a radar mast on the stern where I intend to mount the permanent
antenna. The only issue will be keeping it above or below the radar so I
don't fry something.

My understanding is that longer antenna cables can cause serious signal
degradation. Some manufactures make exterior bridges that can be mounted
very close to the antenna and then powered over the Ethernet cable. That
seems worth looking into if you need a long run. I figure I can mount an
interior bridge about 15 feet from my antenna.

John

"Don" wrote in message
...
I'd be interested in knowing what marinas you have difficulty with. I
also have a sailboat and this weekend I was in Bellingham's Squalicum
Harbor. My slip at Gate 6 is in a spot that had very bad reception from
BBX, and at most times of the day I could not make a reliable connection
with the standard wifi card. It was sometimes better (I suspect high tide
is better than low tide). With the high-powered card this weekend I got a
rock-solid 100% connection for both uplink and downlink not even using the
external antenna.

I had similar experiences with BBX in Nanaimo at the dock, and at Silva
Bay (Gulf Islands) at anchor. I spent quite a few minutes of cell time on
the help line trying to get connected. At the time I did not have the
high-power card but I'm pretty sure that this would take care of the
situation. I've been using BBX service occasionally for a couple years
and over the past year or so the BBX web site has steadily increased their
insistence that you must have high-power gear to use their service. In my
experience this is often not the case, but sometimes it is very true. I
guess with all the local interference of multiple wifi users, good
reception in populated areas is getting very difficult to achieve.

I agree that this gear can be very expensive, and trial-and-error is not
my favorite way to go. Also, on a sailboat I have wondered about antenna
placement. I would think that the masthead would be the ideal location as
far as reception and protection from lines and sails, but there are a
couple of problems - the 60-foot+ cable run might be too long, and the
energy from keying the VHF at 25 watts with its antenna right next to the
wifi antenna might fry the wifi receiver. Are the frequencies enough
different to avoid this? I thought about putting a wifi antenna at
spreader level, maybe 20 feet above the deck, but having the antenna
parallel and close to the grounded mast might reduce its effectiveness.
Maybe halfway out on a spreader, leaving it vulnerable to flapping sails?
These problems seem more troubling than finding the components for the
right price. By the way, I have confirmed that the SMC high-power card
that I bought is identical to the one sold by BBX, even though the brand
and labeling is different. The FCC registration numbers on the card
itself match. I'm really not sure who actually manufactures this card,
but there are at least a few different labels on it.

Don

"Johnhh" wrote in message
...
Actually Don, their "Networked Boat" package is just what I need, but I
just can't justify the $750 price tag on it. I don't have a good enough
grasp of Wi-Fi hardware to know what I can get as a lower cost
substitute - I'm afraid I'd end up spending that much anyway getting
things that didn't work with their system. I just haven't found anything
yet that I feel confident in.

I couldn't even get on line until I got the high power card and 6dbi
interior antenna. Since I have a sailboat, I usually can't get good
enough reception from in the cabin.

John

"Don" wrote in message
...
Broadband Xpress has their "Networked Boat" package that seems like just
what you're looking for. Pricey, though, and I'd bet you can find the
components elsewhere for less money.






Bruce in Alaska January 3rd 05 08:00 PM

In article ,
"Don" wrote:

I'd be interested in knowing what marinas you have difficulty with. I also
have a sailboat and this weekend I was in Bellingham's Squalicum Harbor. My
slip at Gate 6 is in a spot that had very bad reception from BBX, and at
most times of the day I could not make a reliable connection with the
standard wifi card. It was sometimes better (I suspect high tide is better
than low tide). With the high-powered card this weekend I got a rock-solid
100% connection for both uplink and downlink not even using the external
antenna.

I had similar experiences with BBX in Nanaimo at the dock, and at Silva Bay
(Gulf Islands) at anchor. I spent quite a few minutes of cell time on the
help line trying to get connected. At the time I did not have the
high-power card but I'm pretty sure that this would take care of the
situation. I've been using BBX service occasionally for a couple years and
over the past year or so the BBX web site has steadily increased their
insistence that you must have high-power gear to use their service. In my
experience this is often not the case, but sometimes it is very true. I
guess with all the local interference of multiple wifi users, good reception
in populated areas is getting very difficult to achieve.

I agree that this gear can be very expensive, and trial-and-error is not my
favorite way to go. Also, on a sailboat I have wondered about antenna
placement. I would think that the masthead would be the ideal location as
far as reception and protection from lines and sails, but there are a couple
of problems - the 60-foot+ cable run might be too long, and the energy from
keying the VHF at 25 watts with its antenna right next to the wifi antenna
might fry the wifi receiver. Are the frequencies enough different to avoid
this? I thought about putting a wifi antenna at spreader level, maybe 20
feet above the deck, but having the antenna parallel and close to the
grounded mast might reduce its effectiveness. Maybe halfway out on a
spreader, leaving it vulnerable to flapping sails? These problems seem more
troubling than finding the components for the right price. By the way, I
have confirmed that the SMC high-power card that I bought is identical to
the one sold by BBX, even though the brand and labeling is different. The
FCC registration numbers on the card itself match. I'm really not sure who
actually manufactures this card, but there are at least a few different
labels on it.

Don


WiFi works in the ICM Band @ 2.4 Ghz. Your vhf Marine Radio works at
156 Mhz. Thats more than an order of magnitude difference. The WiFi
is Spread Spectrum, where as your Vhf is FM. The two will never see
each other at the RF level. Coax Length will be VERY limiting in the
ICM Band. If you just get the external antenna above the deck, it will
make a considerable difference, over using anything inside the house, and
leaking out the windows. If your really into the BEST that money can
buy, then get a 10db Omni Antenna, and feed it with 1/2" Hardline, and
mount it about 15' off the deck. You really don't have to worry to much
about grounded things like spreaders, mast, or shrouds, as these are
fairly transparent at 2.4 Ghz. You will get about the same shading as
what you get on your Xband Radars from the same things.

Bruce in alaska
--
add a 2 before @


All times are GMT +1. The time now is 06:26 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004 - 2014 BoatBanter.com