Robot Check. Enter the characters you see below. Sorry, we just need to make sure you're not a robot. ![]() ![]() For best results, please make sure your browser is accepting cookies. ![]() Wi- Fi on a Boat ! Wireless Wiki is a practical, comprehensive, and objective resource for wireless communications, particularly wireless access to the Internet, and related wireless technologies (e. Founded by John Navas. Common Problems Edit. In locations where shore- based Wi- Fi signals are strong, using them for Internet access on a boat is comparable to using Wi- Fi hotspots on land. However, the marine environment tends to exacerbate general Wi- Fi problems and create other problems of its own. Boat hulls and sailboat masts can block radio signals, reducing range. Thus it's only likely to help if the other end of your connection is using higher power as well, which may not often be the case. In other words, what you may well wind up with is an alligator, big mouth but small ears. Also, unnecessarily high transmit power will tend to increase your interference with other Wi- Fi users, making you a bad neighbor. However, if the other end does have a powerful transmitter, at least you can have the same matching power level at your end. Improving your antenna will help both transmit and receive. It takes an increase of 6 d. Bi to double range; e. ![]() Bi antenna, an 8 d. Bi antenna has double the range. Wireless Wiki is a practical, comprehensive, and objective resource for wireless communications, particularly wireless access to the Internet, and related. Configuration of Beetel 450 TC1 WiFi ADSL Modem for BSNL, MTNL and Airtel Broadband Sujith. The Super WiFi Repeater System will pull distant WiFi signals in to your computer, smartphone, tablet and more, and there are no drivers to install! The source for WiFi products at best prices in Europe All UK and Ireland customers are Welcome to our online store www.wifi-stock.co.uk. Micro Center Web Store; You are currently browsing the products available on our web store. If you would like to choose a store location, please do so below. Welcome to the Wireless Connectivity Section of the TI E2E Support Community. Ask questions, share knowledge, explore ideas, and help solve problems with fellow. The width (angle) of the directional pattern (both vertically and horizontally) can be used to see how accurately the antenna must be aimed. Such an antenna works by concentrating energy/sensitivity in the horizontal direction that would otherwise be wasted vertically (up and down). Beyond about 8 d. Bi the vertical beam angle becomes so narrow that vertical aiming can be problematic on a boat. Omnidirectional. Antenna Gain. Example of. Vertical Beam Angle. There is a fair amount of discussion here about beam width and why a boat must have an omni antenna with about 8 d. Broadcom ACPL-C87A-000E Precision Optically Isolated Voltage Sensor.Bi or less gain. Let us do a practical test of this. Take your hand bearing compass out and site a location about 1. Then slowly turn six degrees and look at that point. Now imagine that distance turned vertically and that is the beam with of an omni antenna with a beam with of 6 degrees at 1. Repeat this for a point 2. This test convinced me to experiment with high gain omni antennas from the practical perspective of a sailing boat. I am not disagreeing that at close proximity that a lower gain antenna is better. But as the distance increases the effective beam width increases. Years of actual experience aboard sailing boats confirms that higher d. Bi gain omni antennas work well on a boat at anchor as well as at a dock close to the shore side station. However, there is a limit. In the United States, the Federal Communications Commission (FCC) regulates the use of antennas through FCC Part 1. Wi- Fi devices. The key to applying these rules is to understand EIRP (Equivalent Isotropically Radiated Power), which represents the total effective transmit power of the radio, including gains that the antenna provides (and losses from the antenna cable). For antennas with gain greater than 6d. Bi, the FCC requires you to reduce the transmitter output power if the EIRP is already at the maximum of 3. Bm (4. W). This means that as antenna gain goes up, you must decrease the transmitter power. Higher gain antennas would mostly apply to point- to- point solutions having very long range requirements, which is not used for multipoint Wi- Fi hotspot access applications (point- to- multipoint). Creating a Private + Guest WiFi Access Point (DD-WRT) Recently I was asked to configure a WiFi access point for a small business, who needed to have both a private. A wireless network is a computer network that uses wireless data connections between network nodes. Wireless networking is a method by which homes, telecommunications. I recently bought a Brother wireless printer and I have to say that it’s really nice being able to print from my laptop while sitting outside on the front porch. When using omni- directional antennas less than 6d. Bi gain, the FCC rules require EIRP to be limited to 1. W EIRP or less. Wi. Fi is line of sight, and the use of a medium gain antenna (4d. Bi- 9d. Bi) will provide a fair amount of flexibility in accessing Wi. Fi access points on shore regardless of the height of the antenna on the boat due to it's wide cone of transmission. Use of a higher gain antenna (1. ![]() Bi - 1. 5d. BI) may cause you to have a need to adjust the height of your antenna based on the access point location since the cone of transmission is significantly smaller than on medium gain antennas. Height is important to get clear of nearby obstacles and for maximum range. VHF antennas are mounted at masthead for the same reasons. However, they are relatively expensive, and they only track in the horizontal plane, so it's important that the vertical beam width take into account rolling and pitching of the boat. Usually a vertical beam angle of 1. Ideally the radio unit and antenna are located together as high as possible (e. Hawking HWU8. DD Hi- Gain USB Wireless- G Dish Adapter. Advantages: Plug and play (check manufacturer's specifications). Low cost (desktop type devices). USB Internet connection can be shared by means of Internet Connection Sharing (on both Windows and Mac OS's). If using Microsoft Windows 7, this has become simplified via . Connection Sharing through your computer will require the sharing computer to be left on whenever connection sharing is needed with additional hardware and electricity requirements, since hosting computer must be left on, in order to allow these other devices to get online. The actual rate of power consumption by a USB device will be dependent on the device being used, so check manufacturer's specs for power draw. Firmware built into ethernet based devices control Wi- Fi access. This makes hotspot selection changes more flexible since any computer or device is capable of doing this via a browser. Some interfaces of these devices were designed for networking professionals so check with manufacturer for information about operation. Ability to connect multiple computers or computers that do not have Ethernet or USB connections and use only built in Wi- Fi (i. Devices require either a power cable or Po. E (Power over Ethernet). Check manufacturer spec. Check supplier specs. Lots of general Wi- Fi information on their site. Typical draw is < 5. Check supplier specs. If the private Wi- Fi hotspot to connect your devices onboard is built into the same box as the Wi- Fi transceiver, there is a trade off: If the long range Wi- Fi transceiver is located high for best reception, the private hotspot is up there as well, not down where the devices connecting with it are. If the transceiver is left low to facilitate connection with devices, the transceiver may not get the best possible connection. However, with high power equipment like The Wirie AP+, the private hotspot is accessible regardless of mounting location. Built in access point, 1. V power source. Non vented sealed type antenna recommended as any water ingress into the antenna will reduce the life of the antenna. Avoid the use of dish or directional antennas. Some devices operate directly from 1. Vdc. The Wirie). Run the USB cable into your boat from the Wi. Fi system. Use Active USB extension cables to extend the length. Avoid the use of dish or directional antennas. By adding a wireless hotspot (i. Bitstorm Unleashed N), you can share the single internet connection simultaneously with several computers. Another advantage is that even though multiple devices and connect and share the internet connection simultaneously, only a single connection to the Wi- Fi access point is used. This is a big cost saving when connecting with hotspots that charge per connection. Check manufacturer input voltage specs if possible. Getting an injector with separate power and lan leds is a good idea, since you can figure out the polarity without having your device plugged in. It won't necessarily be a private LAN - - unless the remote wireless access point implements wireless- to- wireless isolation (which many or may not be implemented), and boats may be on the same LAN, and you should take precautions accordingly - - see Secure Internet access in a public hotspot. This kind of LAN will be operational only when connected to remote Wi- Fi. See Wireless Distribution System. Many Wi- Fi devices will work properly anywhere in the world, either by means of a configuration option (preferable), or by means of different firmware loads (clumsy). See Wi- Fi Channels. Check whether a suppliers has included a simple method to conform to the Wi- Fi requirements of different countries. For example: The Wirie AP+ and Bitstorm Bad Boy Xtreme N and Xtreme MJ provide this as part of their management application and configures it to operate within the legal requirements for the selected country.
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