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