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Booster Wlan

July 22nd, 2003

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wifi antenna question?

Today received my wifi antennna 20 dbi bought from ebay. Got hooked up to my wireless card and very dissapointed with results. It doesnt pickup wifi signals as expected, very week power. My old 2dbi antenna does a better job than this crap..Its the antenna completely crap, or do i need amplifier?

antenna i bought
http://cgi.ebay.com/20-dBi-WIRELESS-WIFI-ANTENNA-BOOSTER-WLAN-RP-SMA-PLUG-/190510994972?pt=LH_DefaultDomain_0&hash=item2c5b57161c

http://cgi.ebay.com/20-dBi-WIRELESS-WIFI-ANTENNA-BOOSTER-WLAN-RP-SMA-PLUG-/190510994972?pt=LH_DefaultDomain_0&hash=item2c5b57161c

The stated frequency is 1970-2170 MHZ, where-as official WiFi 802.11 frequencies are 2.4000–2.4835 GHz - which means your antenna is 300MHz too low to start with and so will not be "tuned" appropriately.

Also consider the best made Cantennas (highly directional and tuned WiFi antennas) only come close to 20dB gains, often closer to 15dB in real-world testing. Your antenna is omni-directional.The eBay page does say "max 20dBi" as though that's a theoretical possibility (perhaps when used in the lower frequency range stated).

Searching online to find what an omnidirectional WiFi antenna should be capable of and most reputable online stores are selling just 7dB up to 9dB gain antennas.

Overall I think you've been mis-sold on this item, not least the fact the frequency base for it is well off.

Find Booster Wlan On eBay Below:

24GHz 3dBi Booster Omni WIFI Antenna WLAN SMA male plug for wireless router
24GHz 3dBi Booster Omni WIFI Antenna WLAN SMA male plug for wireless router
$2.53
24GHz 13dBi High Gain RP SMA Antenna Wlan Booster+ Cable For Wireless IP Camera
24GHz 13dBi High Gain RP SMA Antenna Wlan Booster+ Cable For Wireless IP Camera
$19.99
24GHz SMA 7 dBi Wireless Wifi WLAN Signal Booster Antenna 5X Range Extender HI
24GHz SMA 7 dBi Wireless Wifi WLAN Signal Booster Antenna 5X Range Extender HI
$5.62
24GHZ Long Range High Speed IEEE80211b g n WiFi WLAN Signal Booster 5W
24GHZ Long Range High Speed IEEE80211b g n WiFi WLAN Signal Booster 5W
$52.88
4W WiFi Wireless LAN Broadband Router Signal Booster Amplifier 24GHz TDD 25dB
4W WiFi Wireless LAN Broadband Router Signal Booster Amplifier 24GHz TDD 25dB
$26.51
24GHz 9dBi Wireless Wifi Antenna RP SMA Booster WLAN IP Camera CCTV Router
24GHz 9dBi Wireless Wifi Antenna RP SMA Booster WLAN IP Camera CCTV Router
$6.62
EDUP 4W 4000mW Wifi Wireless Amplifier Router 24G 24Ghz WLAN Signal Booster 2
EDUP 4W 4000mW Wifi Wireless Amplifier Router 24G 24Ghz WLAN Signal Booster 2
$27.46
Booster 24GHz RP SMA Male 3G 4G LTE Antennas WLAN Router Antenne WIFI Antenna
Booster 24GHz RP SMA Male 3G 4G LTE Antennas WLAN Router Antenne WIFI Antenna
$3.15
18dBi 24G WiFi antenna RP SMA male WLAN router antenna connector booster HU
18dBi 24G WiFi antenna RP SMA male WLAN router antenna connector booster HU
$3.62
SMA 24GHz 7 dBi Wireless Wifi WLAN Signal Booster Antenna 5X Range Extender New
SMA 24GHz 7 dBi Wireless Wifi WLAN Signal Booster Antenna 5X Range Extender New
$2.19
Antenna 24GHz 5dbi TNC male plug Magnetic base Wireless WLAN Signal Booster
Antenna 24GHz 5dbi TNC male plug Magnetic base Wireless WLAN Signal Booster
$6.50
Antenna 24GHz 5dbi MCX male plug Magnetic base Wireless WLAN Signal Booster
Antenna 24GHz 5dbi MCX male plug Magnetic base Wireless WLAN Signal Booster
$5.00
Antenna 24GHz 5dbi cable RP TNC male Magnetic base Wireless WLAN Signal Booster
Antenna 24GHz 5dbi cable RP TNC male Magnetic base Wireless WLAN Signal Booster
$4.23
Antenna 24GHz 5dbi cable RP SMA male Magnetic base Wireless WLAN Signal Booster
Antenna 24GHz 5dbi cable RP SMA male Magnetic base Wireless WLAN Signal Booster
$4.00
2dBi Wireless WIFI Antenna Network Booster WLAN SMA Connector
2dBi Wireless WIFI Antenna Network Booster WLAN SMA Connector
$1.97
24GHz 5dBi Omni WIFI Antenna Booster RP TNC for wireless router WLAN PCI Card
24GHz 5dBi Omni WIFI Antenna Booster RP TNC for wireless router WLAN PCI Card
$5.50
SuperLinxs WI FI Range Booster Antenna USB Indoor Outdoor WLAN 25 Coax Cable
SuperLinxs WI FI Range Booster Antenna USB Indoor Outdoor WLAN 25 Coax Cable
$159.00
2dbi Wifi Wireless WLAN Network Router Booster Omnidirectional Aerial Z4K2
2dbi Wifi Wireless WLAN Network Router Booster Omnidirectional Aerial Z4K2
$0.99
24GHz 16dBi RP SMA Female Wireless Network Router WiFi Booster WLAN Antenna
24GHz 16dBi RP SMA Female Wireless Network Router WiFi Booster WLAN Antenna
$4.01
EDUP 4W Wifi Wireless Amplifier Router 24Ghz WLAN ZigBee BT Signal Booster US
EDUP 4W Wifi Wireless Amplifier Router 24Ghz WLAN ZigBee BT Signal Booster US
$26.51
4W WiFi Wireless LAN Broadband Router Signal Booster Amplifier 24GHz TDD 25dB
4W WiFi Wireless LAN Broadband Router Signal Booster Amplifier 24GHz TDD 25dB
$28.20
EDUP WiFi Wireless Broadband 5W 5G WLAN Signal Extender Range Booster Amplifier
EDUP WiFi Wireless Broadband 5W 5G WLAN Signal Extender Range Booster Amplifier
$48.53
Antenna 24GHz 5dbi cable N male plug Magnetic base Wireless WLAN Signal Booster
Antenna 24GHz 5dbi cable N male plug Magnetic base Wireless WLAN Signal Booster
$5.00
18 dbi 24Ghz WIFI Antenna RP SMA Male Amplifier WLAN Router Connector Booster
18 dbi 24Ghz WIFI Antenna RP SMA Male Amplifier WLAN Router Connector Booster
$3.86
WiFi Antenna Booster 7dBi 24GHz for wireless LAN WLAN B3
WiFi Antenna Booster 7dBi 24GHz for wireless LAN WLAN B3
$1.87
335802 Wi Fi 24GHz 7 DBI Booster Antenna SMA RP with Wireless Wlan B3
335802 Wi Fi 24GHz 7 DBI Booster Antenna SMA RP with Wireless Wlan B3
$1.84
24GHz 9DBI Wireless Wifi WLAN 5 X Range Booster Antenna Extender +Base Supplies
24GHz 9DBI Wireless Wifi WLAN 5 X Range Booster Antenna Extender +Base Supplies
$8.99
Wireless 24GHz 50W SMA 7 dBi WLAN Signal Wifi Booster Antenna 5X Range Extender
Wireless 24GHz 50W SMA 7 dBi WLAN Signal Wifi Booster Antenna 5X Range Extender
$2.19
24GHz SMA 7 dBi Wireless Wifi WLAN Signal Booster Antenna 5X Range Extender
24GHz SMA 7 dBi Wireless Wifi WLAN Signal Booster Antenna 5X Range Extender
$5.50
RP SMA 24GHz 7 DBI Wireless Wifi WLAN Router Range Extender Booster Antenna 50W
RP SMA 24GHz 7 DBI Wireless Wifi WLAN Router Range Extender Booster Antenna 50W
$1.00
2PCS SMA 24GHz 7 dBi Wireless Wifi WLAN 5 X Range Booster Antenna Extender+Base
2PCS SMA 24GHz 7 dBi Wireless Wifi WLAN 5 X Range Booster Antenna Extender+Base
$6.79
EDUP 4W 4000mW Wifi Wireless Amplifier Router 24Ghz WLAN Signal Booster US
EDUP 4W 4000mW Wifi Wireless Amplifier Router 24Ghz WLAN Signal Booster US
$26.51
335802 Wi Fi 24GHz 7 DBI Booster Antenna SMA RP with Wireless Wlan YM
335802 Wi Fi 24GHz 7 DBI Booster Antenna SMA RP with Wireless Wlan YM
$1.84
8W 24GHz WiFi Wireless Broadband WLAN Signal Extender Range Booster Amplifier
8W 24GHz WiFi Wireless Broadband WLAN Signal Extender Range Booster Amplifier
$47.99
24GHz SMA 7 dBi Wireless Wifi WLAN Signal Booster Antenna 5X Range Extender RS
24GHz SMA 7 dBi Wireless Wifi WLAN Signal Booster Antenna 5X Range Extender RS
$2.53
WiFi Wireless N Broadband 24GHz 4W WLAN Signal Extender Range Booster Amplifier
WiFi Wireless N Broadband 24GHz 4W WLAN Signal Extender Range Booster Amplifier
$17.49
2dbi Wifi Wireless WLAN Network Router Booster Omnidirectional Aerial Antenna B3
2dbi Wifi Wireless WLAN Network Router Booster Omnidirectional Aerial Antenna B3
$0.99
24GHz 9dBi Wireless WiFi WLAN Range Booster Antenna Aerial Extender Sweet
24GHz 9dBi Wireless WiFi WLAN Range Booster Antenna Aerial Extender Sweet
$2.38
24GHz 9dBi Wireless WiFi WLAN Range Booster Antenna Aerial Extender Gracious
24GHz 9dBi Wireless WiFi WLAN Range Booster Antenna Aerial Extender Gracious
$2.26

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