Sma Cable

Need to build wireless internet in a huge area?

i need the advice of some pros here. i want to set up a wireless internet in a 1km square area. if i use several accsess points, do they have to be wired?

or, i just found a product of d-link. it's like an anthena and say there are 18 and 21 dbi models so the rage of the wireless connection goes up to 5 - 8 km (!!!)

Here's what D-Link has to say:

ANT24-1400

Outdoor 14dBi High Gain Directional Panel Antenna

* 30° Horizontal Spread & 30° Vertical Spread
* 0.5m Length Pigtail Cable with N-Male to RP-SMA Supplied
* N-Female Connector
* Mounting Kit Supplied
* Extends Wireless Range up to 3 km
* Suitable for all IEEE 802.11b, 802.11g (D-Link Air, AirPlus,
AirPlusXtremeG) products with detachable antenna

now, i get a little confused here. what exactly will i need? will a regular wireless modem with just 2dbi and one of these d-link things would be enough??

Another option:

a wireless repeater like this one:

http://www.linksys.com/servlet/Satellite?c=L_Product_C2&childpagename=US%2FLayout&cid=1130267578138&pagename=Linksys%2FCommon%2FVisitorWrapper

instead of beaming the signal to point a to point c, you can beam it to point a the b then c.

point b would have to be in the center, though.

NetGear Antenna Cable SMA (M) SMA (M) 5ft ACC1031401 $30.08 NetGear Antenna Cable SMA (M) SMA (M) 5ft ACC1031401

NetGear Antenna Cable SMA (M) SMA (M) 33ft ACC1031404 $105.77 NetGear Antenna Cable SMA (M) SMA (M) 33ft ACC1031404

NetGear Antenna Cable SMA (M) SMA (M) 16.4ft ACC1031403 $61.93 NetGear Antenna Cable SMA (M) SMA (M) 16.4ft ACC1031403

RP-SMA to SMA Wireless Antenna Adapter Cable - antenna cable - 10 ft $13.99 StarTech.com RP-SMA to SMA Wireless Antenna Adapter Cable - Antenna cable - RP-SMA (M) - RP-SMA (F) - 10 ft - black

Extension Cable for Antenna SMA Male to Male $54 Extension Cable for Antenna SMA Male to Male

SMA MALE to Mini UHF Male Antenna Cable $103.36 SMA MALE to Mini UHF Male Antenna Cable

10FT CABLE LOW LOSS RP-SMA MALE $25.99 10FT CABLE LOW LOSS RP-SMA MALE

SMA Connection Cable with Female Plug (4-Pack) $2.8 SMA Connection Cable with Female Plug (4-Pack)

TerraWave - SMA Male for TWS-240 Cable $1.92 SMA connectors are good up to 18 GHz.

StarTech.com 10ft RP-SMA to SMA Antenna Adapter Cable $17.99 1 x RP-SMA Female 1 x RP-SMA Male 10 ft 10ft RP-SMA to SMA Antenna Adapter Cable Designed to work with wireless LAN antennas Extends the distance between wireless antennas and wireless networking devices Low loss at 2.4 GHz frequency range Optimized for use with StarTech.com's networking devices and wireless antennas Copper Network Cable Orange RG400U RP-SMA RPSMA10MF StarTech.com This 10ft RP-SMA to SMA adapter Cable (M/F) lets you extend wireless antenna range without compromising on performance, by extending the cable length of any antenna or wireless device that uses a RP-SMA connector._x000D_ The RP-SMA/SMA adapter features high quality construction that ensures flexibility without reducing performance, allowing wireless antenna installation anywhere it's needed. www.startech.com

Free transport:SMA Connection Cable with Female Plug (4-Pack) $3.68 SMA Connection Cable with Female Plug (4-Pack)

3M Antenna RP-SMA Extension Cable WiFi Router Free shipping with Tracking Number B144 $27.2 This is RG174 Coaxial Cable This is RP-SMA (Reverse Polarity SMA) extension cable

TerraWave - SMA BH Jack for 195 Cable $4.29 SMA connectors operate up to 18 GHz.

TerraWave - SMA BH Jack for 200 Cable $1.92 SMA connectors operate up to 18 GHz.

Rosewill RNX-A3B 3 ft. RP-SMA to RJ-SMA Extension Cable $9.99 Type: Cable Specifications: Length: 3.3 feet Cable Color: Black Compatible Hi-Gain Rosewill RNX series Antennas Frequency Range: DC~6GHz Impedance: 50 Ohms. VSWR: 2:1 Max. @DC~6.0GHz AWG: 24 802.11 a/b/g/n Compatible. Connector Type: RP-SMA Male to Female (R SMA PLUG-R SMA JACK). Cable Type: RG174 Temperature Range: -40 ~ +85°C Features: 3ft RP-SMA to RJ-SMA Extension Cable. Great for extending the length of your wireless device to your Hi-Gain Antenna.

10m RP SMA Male to RP SMA Female Extension Cable Antenna 10PCS/LOT Free shipping $47.37 10m RP SMA Male to RP SMA Female Extension Cable Antenna free shipping

3m Female to Male RP-SMA Coaxial Extension Cable $11.49 Specification:Connector: one end is SMA female, the other end is SMA MaleThis 3m SMA Cable is a RP-SMA (Reverse Polarity SMA) cable.Plug directly into your Meraki, D-link DWL520, Linksys WMP11, WET11, Net-gear MA311, or D-link APSs (anything that uses reverse polarity SMA)Female to Male SMA Cable is ideal for extend the cable for installing the antenna to the ideal location.SMA Extension Cable Length: ~3mWeight: 45gPackage content:1 x SMA Coaxial Cable

Hawking SMA to TNC Antenna Jumper Cable $13.99 1 x SMA 1 x TNC 3.93" Conversion adapter for Wireless Devices with TNC antenna connectors. (For some Linksys and Cisco Devices) Copper HACST Hawking Hawking Technologies, Inc Network Cable SMA SMA to TNC Antenna Jumper Cable TNC www.hawkingtech.com

Hac7Ss - Hawking Antenna Extension Cable - Sma Male - Sma Female - 7Ft $24.21 7ft Rp-sma To Rj-sma Extension Cable. Great For Extending The Length Of Your Wireless Device To Your Hi-gain Antenna [C56415] UPC: 603992505166 UNSPC: 26121609 3.75L x 3.75W x 2.5H 0.14 LB 0.02 Cubes

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SMA Connection Cable with Female Plug (4-Pack)

Wireless CCD Underwater Cam With Video Recorder

Underwater IR Camera for seeing exactly what is going on underwater, with a wireless adapter included for receiving and recording the signals directly to the included Wireless receiver. This is a great idea for fishers, swimmers plumbers, teachers and anyone else that wants a better appreciation of what is happening underwater. This waterproofed camera has a maximum water depth of up to an astounding 20 Meters, has an IR distance of 2 Meters, and with the insulated 20 Meter signal cable, all of your video will be sent with no breakup at all to the wireless transmitter at the top. A great toy for hobbyists and water enthusiasts, this is a underwater gadget that you should not be without.

This product uses the PAL color system.

China Manufacturer Specification

Camera Specifications

• Image Device: 1/4 Inch CCD
• TV system: PAL
• Horizontal Definition: 320TV Line
• Angular Field of View: 92 deg(f=3.6mm F/2.0)
• Minimum Illumination: 0 LUX
• Synchronization System: Internal
• Scanning Freq(H): 15.625KHz PAL
• Scanning Freq(V): 50Hz PAL
• Backlight Compensation: Auto
• Electronic Shutter: 1/50(1/60)~1/12,000s(1/10,000)sec
• White Balance: Auto
• S/N Ratio: >48dB
• Gamma Correction: >0.45
• Power Source: DC9V
• Video Only
• Recommended Max Range for Objects: 5 Meters. 2 Meters in Darkness
• Max Depth: Aprox. 20 meters
• Connection: RCA
• Included Wireless Transmitting Adapter for connecting to the Camera RCA Jack

Transmission Range: 15m without interference
Transmitting Frequency: 2400~2483Mhz (Locked Frequencies)

• Dimension: 95x150x40
• Waterproof Cable Length: 20 Meters

Receiver/MP4 Specifications

• Receiving Frequency: ISM 2400~2483Mhz
• Intermediate Frequency: 480Mhz
• Frequency Stabilization: +/-100Khz
• Demodulation Mode: FM
• Antenna: 50ohm SMA
• Receiving Sensitivity: <-85dBm
• Four Channels Available
• Channel Scan and Channel Skip for multiple Cameras
• Memory: no internal memory
• External Memory: SD/MMC Card Slot (max 1GB)
• Display: 2.5 Inch TFT OLED 260K color (320x240)
• Video Format: ASF

Conversion formats: ASF
Video Resolution: 320x240
FPS (Frames per Second): 25fps

• Music Format: MP3, WMA

Bit rate: 32-192Kbps

• Picture Format: JPEG, EXIF2.1
• Record Format: WAV/ADPCM/PCM
• Earphone Jack: 3.5mm
• SNR (Signal to Noise Ratio): >85
• Output of earphones: 2x5mW (32Ohm)
• Output of Speaker: 10mW (32Ohm)
• Languages: English, Chinese, Spanish, Italian, German, French
• USB: 2.0
• System: Windows 2000/XP
• Power Source: Rechargeable Li-ion Battery
• Dimension: 72x110x25mm (LxWxD)
• Manufacturer Ref.: 5TUF8KBQYWVA

Other Features:

• AV IN/OUT
• Time adjust/select
• Alarm Clock

Accessories:

• Manual
• Water Weight
• Rechargeable 9V battery for camera
• Wireless Adapter
• BNC to RCA Adapter
• AV IN/OUT Cables
• Earphones
• USB cable
• Power Adapters
• MP4 Pouch
• Mini CD with Driver and Conversion Software
• Manufacturer and Origin: China
• Login for Wholesale discount price

Visit the website: http://www.electronicschinawholesale.com
You will find much more.

Even lower prices available for you if you're ordering in larger wholesale quantities. Get your samples first then contact us for your personal discount quotes!

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Current Reviews:    1 This product was added to our catalog on Thursday 11 January, 2007.

Reviews for: (Wireless CCD Underwater Cam With Video Recorder)

  Wireless CCD Underwater Cam With Video Recorder The bestby Raymond Gatt - on 03/25/2009

I think is one of the best

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