Archive for the ‘antenna’ tag
Radio Antenna
Radio Antenna
Tuning That Radio Antenna for Better Reception
Going back to the times when radios had antennas attached to them for transmission as well as reception of signals, it's probably not a common sight to see such gadgets in use. Mainstream technology offers us real-time options to communicate with one another on computers via the internet as well as enjoy listening to news and music streamed into media players. However, nothing beats the rasp and crackle on the conventional radio as a means to connect into the unknown.
A radio antenna's main function is to convert radio frequency signals picked up from the air by its receivers, into electrical signals to produce audible sound. If the radio is also meant for transmission, it then converts electrical signals, which represent a human's voice or a song, into radio frequency signals and emit them. Since these signals travel through the air, there is always a great chance of signal loss depending on its surroundings. Any electrical device radiating some form of frequency can affect the radio's transmission and reception. An antenna constructed of incorrect height and material is also subject to further interference.
Radio stations sport giant antennas to ensure strong signal transmission to its listeners. Hence, radio antennas attached to the device itself are quite sufficient to pick up these strong signals without having the need for secondary antennas. The trick, however, is to adjust the antenna to pick up the best reception possible. Since radio signals travel as waves, the antenna height plays an important role. Simply extending it to its fullest doesn't automatically ensure good reception.
If you are staying in the outback away from civilization, an outdoor antenna may be required to pick up and transmit stronger signals. Ensure you place it in a clear area on high ground for maximum effect. Within city limits, an indoor antenna is a good alternative to avoid a sore thumb in your garden. Normally attached to the highest part of the house, insulated wire is run from the antenna to the radio. There is no hard and fast rule on which antenna heights work best. It all comes down to testing and tuning for what best suits your environment.
About the Author
Dennis enjoys writing on wide range of topics such as radio antenna and antenna towers . You may visit for more details.
will any kind of xm receiver or antenna work with a regular radio to receive xm stations?
i have a regular radio and want to connect an xm radio antenna to it to recieve xm stations.
No.
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Ham, Shortwave radio, antenna 160 meter receive loop.
Antenna Socket
Antenna Socket
GPS Accessories
Here's a typical list of accessories for your GPS receiver/systems that might be useful for you. Highly recommend that you review the reading material in the Features/Gimmicks section of www.gadgetknowledge.com/gps1.html, to obtain an understanding of the kind of accessories you may need for your GPS application. Go to the ‘Buy Them Here’ section for a list of places where you can buy the accessories.
Adapters & Battery Chargers
1. Battery chargers are available with adapters for International & Regional A/C outlets.
2. Buy cables to charge your GPS receiver batteries from your automobile's batteries, through the cigarette lighter socket in your automobile.
3. An additional battery can be of help, when you are headed out on one of those long trekking trips into the wilderness.
Antennas
1. External antennas can enhance your GPS receiver's signal reception.
2. Look for low profile antennas small in size.
3. External antennas are available with adhesive mounts or magnetic mounts or suction mounts (for example, for mounting on your car's windshield).
4. If you plan to mount the antenna outside your vehicle, make sure that it is waterproof.
Cables
1. Cables to connect your GPS to a computer's USB port. For example, you may want to plan your route on a computer and download it to your GPS.
2. Cables are available to power your GPS receiver from your automobile's cigarette lighter.
3. You may need long coaxial cables to connect your GPS receiver to the external antenna.
4. Cables can connect your iPod to your GPS unit.
5. Connect your GPS unit to your car stereo using a audio cable to hear turn-by-turn voice guidance loud and clear or simply to listen to MP3 music.
Carrying Cases
1. Carry cases to securely hold your GPS
Maps, Charts
1. When you buy a GPS receiver it is generally pre-loaded with regional maps or charts (maps for navigation on land and charts for navigation on water).
2. You may want to buy additional regional maps depending on where you want to go.
3. Typical maps available are for North America or Australia or UK or West Europe or USA or Italy/Greece or USA lakes,.......
Memory
1. You may need additional memory for your GPS to store bigger maps (maps are available for not just roads but for also points of interest such as restaurants, shopping complexes,...) and more advanced software versions.
2. Additional memory is available in forms, such as 128/256 MB Micro SD card, 32/64/128/256/512 MB Compact Flash Card, ...
For a more comprehensive knowledge of GPS today, refer to websites such as www.gadgetknowledge.com/gps1.html
About the Author
Steve Kinder is a GPS industry veteran with extensive experience in the GPS receiver design and manufacturing. His latest hobby is to spread the knowledge of GPS to everybody through tutorials and websites (www.gadgetknowledge.com/gps1.html).
Not very often does a single system have such a large impact on the way we live. The Internet was revolutionary, so is GPS. Get to know GPS today and keep up with it before it permeates all over your lifestyle!
How to attach antenna for wirleless network to my laptop?
My laptop is model Lenovo 3000 V200. I think that attaching an antenna will make the connection less senstive to location and orientation of the machine. But I see no antenna socket, is there one such? If not, what to use instead?
You could plug in a new wireless card which may or may not improve things. Intel would be the best.
The only other choice would be to attach a better antenna as you have already guessed.
The antenna inside the laptop will connect to the wireless card inside the laptop with a standard connector. So if you open the access on the bottom (most likely) of the laptop you should be able to see where the laptop antenna plugs in. Then you would just need to unplug the laptops antenna and plug in your own antenna which you could run through a vent etc in the bottom of the laptop.
There are tons of projects you can google to build your own external antenna with soup cans and stuff which will make your signal directional and boost it by a huge amount.
Good luck with that interesting project. I might try it myself if I could A) find some spare time and B) actually need a signal boost for my already excellent Wireless-N
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Bluetooth USB Hacking, add an external MMCX antenna socket