What is Wi-Spy?
Wi-Spy is the world's smallest 2.4 GHz spectrum analyzer. It's so small (and inexpensive) because it harnesses the processing power of the computer you already own. Wi-Spy is perfect for troubleshooting interference from the following devices:
- Wi-Fi (802.11 b/g/n)
- Microwave Ovens
- Cordless Phones
- Bluetooth
- Zigbee
Why use Wi-Spy?
The wireless landscape is getting crowded. It's a good thing we make Wi-Spy so you can find a clear path to your signal. Use Wi-Spy if:
- You deploy and maintain wi-fi networks
- Your wi-fi has intermittent bandwidth problems
- The microwave interferes with your wi-fi network
- When the phone rings your network connection drops
Wi-Spy is the perfect spectrum analyzer for independent wireless consultants, home theater installers, class rooms, and do-it-yourselfers and it's even better when combined with our industry-leading Chanalyzer software!
Hardware versions
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Wi-Spy |
Wi-Spy 2.4x |
There are two releases of the Wi-Spy hardware. The original unit is still available and is simply given the name "Wi-Spy". An updated version was released that improved the resolution, sensitivity and added an external antenna. This is now known as "Wi-Spy 2.4x". The technical differences are detailed below.
Wi-Spy vs Wi-Spy 2.4x
| Wi-Spy |
Wi-Spy 2.4x | |
| Antenna | Internal | RP-SMA |
| Bandwidth | 2.4 - 2.482 GHz | 2.4 - 2.4835 GHz |
| Frequency Resolution | 1 MHz | 328 KHz |
| Amplitude Range | -97 dBm to -50.5 dBm | -110 dBm to -6.5 dBm |
| Amplitude Resolution | 1.5 dBm | 0.5 dBm |
| Sweep Time | ~120 msec | ~165 msec |
| Supported Operating Systems | Windows, Mac OS X, Linux | Windows, Linux |
Visual differences: Wi-Spy vs Wi-Spy 2.4x
802.11g Download Comparison
Comparison of Wi-Spy vs Wi-Spy 2.4x. Measurement of Linksys WRT54G and WPC54G 11g WLAN driven by IxChariot throughput script. Wi-Spy, AP and STA located within 3 feet of each other. (Contributed by Tim Higgins at SmallNetBuilder.com)
Screenshot of original Wi-Spy
Screenshot of Wi-Spy 2.4x
802.11n Download Comparison
Comparison of Wi-Spy vs Wi-Spy 2.4x. Measurement of D-Link DIR-655 and DWA-652 draft 11n WLAN driven by IxChariot throughput script with AP in 40MHz bandwidth mode set to Channel 1. Wi-Spy, AP and STA located within 3 feet of each other. (Contributed by Tim Higgins at SmallNetBuilder.com)
Screenshot of original Wi-Spy
Screenshot of Wi-Spy 2.4x