Features

Specifications

Frequencies

FAQs

Grasshopper Wi-Fi Test Receiver

Grasshopper™ is a handheld, wireless receiver designed specifically for sweeping and optimizing Local Area Networks. The instrument measures coverage of direct sequence CDMA networks which operate on the IEEE 802.11b standard allowing the user to measure and determine the AP (Access Point), PER (Packet Error Rate) and RSSI signal levels aiding in locating the hub and access points throughout a building. Grasshopper detects and differentiates from narrow-band multipath interferences such as microwave ovens and frequency hopping systems and features a built-in display, keypad and removable battery pack for true portability. Grasshopper works with any IEEE 802.11b DSSS access point such as Apple's Airport®, Proxim, Macsense and Farallon.

Download Grasshopper data sheet

Download Grasshopper manual from the Technical Support section

Download Grasshopper related articles

• Measure coverage for direct sequence (DSSS) wireless networks (wideband IF 22 MHz)
• Tests 2.4 GHz DSSS networks operating within the IEEE 802.11b standard
• Scans all 14 channels
• Measures and analyzes Packet Error Rates breaking it down into 1, 2, 5 and 11 Mbit/Sec. rates by percentage of usage
• Decodes and displays SSID of MAC address
• WEP security encryption detection
• Measures and displays channel time dispersion for multipath analysis
• Measures and displays RF power measurements: narrow band received signal strength (RSSI), total channel power
• Light-weight, portable and rugged design ideal for realtime network analysis
• Removable rechargeable battery pack (5 AA Ni-MH cells)
• Built-in numeric keypad, backlit display with simple menu interface

RF:

Bands Supported	ISM: 2.400-2.485 GHz
RF Sensitivity (Wide Band)	-20 to -90 dBm
RSSI Measurement (Narrow Band)	-30 to -90 dBm @ 100 kHz reolution bandwidth
Tuning Increments	50 kHz steps

PACKET PREAMBLE DEMODULATOR & ANALYZER:

Multipath Measurement  and Graphical Display

CORRELATED POWER MEASUREMENTS:

GENERAL SPECIFICATION:

IF Bandwidth	Wideband 22 MHz
Stability	+2.5 PPM over entire temp range 32 deg to 120 deg F
Antenna	SMA Female 50 ohms
Controls	20 button keypad
Warm -Up Time	< 3 minutes
Power	Internal battery pack (5 AA Ni-MH batteries)

MECHANICAL:

Weight	3 lbs.
Dimensions	2" H x 4" W x 9" L

*Multipath and signal quality assessment via comparison of correlated power to total channel power ratio and correlated power.

 

*Features graphical display of multipaths.

 

*Interference detection via RSSI scan and active DSSS 802.11b channel scan.

 

Grasshopper includes a straight 3dBi 2.4 GHz antenna (SMA Female 50 ohm), two removable battery packs (5 AA Ni-MH cells each) and a rugged carrying case.

• 2.401-2.483 GHz