Berkeley Varitronics Systems Cicada Bedienungsanleitung

manual version 1.2

Cicada

Contents

CICADA ACCESSORIES................................................................................................. 3

CICADA KEYPAD......................................................................................................... 3

GETTING STARTED...................................................................................................... 3

AP MEASUREMENT SCREENS......................................................................................... 4

MAIN MENU.............................................................................................................. 5

AP ANALYSIS............................................................................................................ 5

AP FOLLOWING......................................................................................................... 5

SPECTRUM............................................................................................................... 6

PEAK HOLD.............................................................................................................. 6

CICADA SETUP........................................................................................................... 6

INFO SCREEN............................................................................................................ 7

GPS : ON................................................................................................................. 7

INITIALIZE CARD........................................................................................................ 8

SELECT REGION......................................................................................................... 8

CONTRAST ADJUSTMENT.............................................................................................. 9

BACKLIGHT ADJUSTMENT............................................................................................. 9

WEP ENCRYPTION DETECTION....................................................................................... 9

NETWORKING BASICS.................................................................................................. 10

CICADA ACCESSORIES................................................................................................. 12

DIRECTION FINDING ANTENNA SETUP.............................................................................. 13

CICADA SERIAL INTERFACE (DATA LOGGER)...................................................................... 14

SYSTEM REQUIREMENTS.............................................................................................. 14

GPS SCREEN............................................................................................................. 15

SERIAL PORT SCREEN................................................................................................. 15

UNIT SETUP SCREEN................................................................................................... 16

DOLPHIN REAL TIME PLOTTER SCREEN............................................................................ 16

MENU SELECTIONS..................................................................................................... 17

AP ANALYSIS SCREEN................................................................................................. 19

FOLLOW SCREEN....................................................................................................... 19

SPECTRUM SCREEN.................................................................................................... 20

CHAMELEON WLAN DATA CONVERSION APPLICATION.......................................................... 21

GLOSSARY OF ACRONYMS........................................................................................... 23

GENERAL SAFETY

ANTENNA RADIATION PATTERNS

CICADA DATA SHEET

INTRUDER ALERT: Recognizing WLAN Attacks & Locating the Culprits (MPD August, 2002)

802.11a Measurement Techniques and Network Issues (MPD November, 2003)

TAKE THE WLAN TEST CHALLENGE (COMMUNICATION NEWS April, 2002)

Page 1

Page 2

Cicada™ is a handheld, wireless receiver designed spe-

cifically for sweeping and optimizing Local Area Networks.

The instrument measures coverage of direct sequence

CDMA networks which operate on the IEEE 802.11b stan-

dard allowing the user to measure and determine the

AP (Access Point), PER (Packet Error Rate), and RSSI

signal levels and access points throughout a building.

Cicada detects and differentiates from narrow-band mul-

tipath interferences such as microwave ovens and direct

sequence systems and features a built-in display, keypad

and removable battery pack for true portability.

Cicada’s battery pack uses common AA battery cells found

in any conveinence store. Ni-Cad, Alkalines, Ni-MH and

Li-Ion cells may all be used. Cicada does require 5 AA

cells with at least 1500 mAh per cell. BVS supplies 2 bat-

tery packs complete with 10 Ni-MH battery cells to get

users working right out of the box. Ni-MH cells are recom-

mended for best performance from your Cicada.

Cicada also includes a simple 2.4 GHz threaded antenna

that screws right into the top of the unit. Additional anten-

nas may be ordered from BVS through BVS.

At the top of the Cicada rests the GPS connector, antenna

connector and upload port. The GPS antenna connector

(left) is a small male connector. The antenna connector

(center) is a 2.4 GHz SMA Female 50 ohm. The provided

antenna easily screws and unscrews from this connec-

tor. Be sure to unscrew antennas when transporting the

Cicada. The upload port (right) is used as a one way

communications port for uploading new firmware to the

Cicada. The port uses the provided cable which employs a

standard RJ-11 phone jack on one end and DB-9 PC serial

cable on the other end.

See UPDATING CICADA FIRMWARE in this manual for firm-

ware updating procedures.

Page 3

CICADA ACCESSORIES

Your Cicada includes all basic operational accessories includ-

ing the following: 2.4 GHz antenna, GPS antenna, 16MB com-

pact flash card, compact flash card reader, 2 (Ni-MH) battery

packs, AC/DC power cable, carrying case and upload cable.

Insert depleted battery pack into charger and plug charger into

AC outlet. See rear of charger for LED status indicator lights.

Approximate charging time for included Ni-MH battery pack is

just over one hour. Run time using these same batteries is just

over two hours.

NOTE: The included charger may only be used to charge the

included Ni-MH batteries or other AA Ni-MH batteries. NOT

Ni-CAD batteries. Batteries are automatically conditioned in

the charger before starting a rapid charge. The charge and

runtime are balanced so that the charge is usually complete

before the Cicada displays low battery indication. This is

an average estimate since the current consumed by Cicada

and runtime depend substantially on the mode of operation.

Expect over 500 cycles from each Ni-MH pack.

CICADA KEYPAD

Cicada uses a raised plastic keypad as its only interface. Below

are simple descriptions of the buttons and their features:

LOGGING - indicates if unit is logging to compact flash

RECEIVE - indicates if any signals are being received

GPS POWER - indicates internal GPS ON / OFF status

1 - toggles backlight ON & OFF

POWER - toggles Cicada ON & OFF

4 - toggles highest signal strength metering ON & OFF

5 - toggles data logging ON & OFF to compact flash

SETUP - enters the setup menu screen

7 - incrementally time stamps

ESC - exits current menu screen

0 - displays contrast screen

ENT - executes currently selected option

UP/DOWN ARROWS - scroll through selections

GETTING STARTED

Operation of the Cicada is straightforward. Insert 5 fresh bat-

tery cells into removable pack. Close the bottom back up and

power on the Cicada by holding down the POWER button for

about 2 seconds.

Page 4

AP MEASUREMENT SCREENS

This is the main measurement screen used for monitoring

and selecting any valid FHSS (Frequency Hopping Spread

Sprectrum) APs (Access Points). This screen displays AP

parameters such as signal strength in dBm, WEP encryp-

tion, current GPS time/position/satellites of Cicada and MAC

address list. The MAc address list consists of all FHSS MAC

addresses detected. Multiple addresses may be listed and

monitored simultaneously here. Use the UP/DOWN ARROW

keys to toggle between all of these selections and ENT to

choose one. Upon choosing an AP, the user will be taken to

the AP Following Screen (below) providing detailed param-

eters for the chosen AP.

AP ANALYSIS SCREEN

NAEur - indicates current region selection for measure

The AP address window at the bottom indicates all IEEE

addresses indentified. (the arrow to the left indicates the

address that is currently selected)

dBm - indicates the signal strength of the last packet mea-

sured.

W - indicates WEP (Wireless Equivalent Privacy). “P” indi-

cates encryption is detected.

LAT - GPS Latitude coordinates

UTC - GPS time stamp

LON - GPS Longitude coordinates

SAT - number of satellites in view

Indicates compact flash has been formatted for Cicada

Indicates data storage remaining in compact flash card

AP FOLLOWING SCREEN

AP: the selected AP’s MAC address

RSSI: last packet’s signal strength measurement in dBm

Hop Set: indicates set number of sets 1,2 or 3

Hop Pattern: indicates pattern number of patterns 1-79

(note: this number corresponds to the IEEE 802.11 spec)

Dwell Time: indicates how long the AP stays on a channel

before it jumps to another channel in TU (Time Units defined

as 1024 microseconds)

TSF: Timing Synchronization Function indicates the AP’s abso-

lute time that counts down to the next channel hop

SSID: currently selected AP’s Service Set IDentification

PER: Packet ErrorRate percentage for the selected AP

Following - Cicada continues to follow AP as it hops

Page 5

MAIN MENU

Press the ESC key at any time to enter the MAIN MENU. This

menu allows access to all controls and parameters found in

the Cicada. Use the UP/DOWN ARROW keys to choose and

press ENT to make the selection.

AP ANALYSIS

This selection places a cursor at the bottom of the screen to

the left of the AP addresses. By pushing ENT, the user selects

(indicated by the arrowhead) a specific AP address to moni-

tor. Use Select AP and the UP / DOWN ARROW keys to toggle

through all received addresses. In this screen, the user may

access up to 16 unique, detected AP addresses by scrolling

through the list and selecting one.

AP FOLLOWING

By selecting an AP to monitor off the AP analysis screen, the

user will prompt this screen to appear. This screen allows

monitoring of the selected AP’s beacon timing channel. After

a few moments of searching, Cicada will “lock on” and follow

the AP’s timing parameters.The parameters are listed on page

4 of this manual. Press ESC at any time to return to the AP

analysis screen.

SPECTRUM

This RSSI screen indicates all received signals at 2.4 GHz in

a 1 MHz bandwidth that Cicada continuously scans. The peak

power is indicated graphically and numerically on this screen

as well as the channel being scanned.

PEAK HOLD

Peak Hold is only activated and deactivated in the Spectrum

Screen. Use Peak Hold when looking for interference sources

with low duty cycles such as APs. Push the 4 key on the keypad

to turn ON the Peak Hold. Push the 4 key again to turn the Peak

Hold back OFF. Each small tick mark indicates a dBm peak

for that portion of the 1 MHz scan. Remember the last signal

displayed will reset when Peak Hold is toggled ON.

CICADA SETUP

Press the SETUP key at antime to access the Setup Menu.

While in the this menu, use the UP/DOWN ARROW keys to

choose a setup option. From this menu, users may access

and/or control features such as unit information, internal GPS,

Compact Flash card and international region. Press ENTER to

select or ESC to return to previous menu screen.

Page 6

Page 7

INFO SCREEN

This informational screen provides information on your Cicada

unit such as firmware version, serial number and current GPS

information.

GPS : ON

Press ENTER to toggle the internal GPS ON and OFF. The GPS

POWER LED indicator above the keypad will light up indicating

the internal GPS is operational. Be sure that the GPS antenna

is connected to the Cicada and not blocked from the satellites

in the sky.

Allow a few minutes for the GPS antenna to acquire a few sat-

ellites and lock. Be sure to keep the GPS off if GPS data is not

needed in WLAN studies as it will draw power and shorten the

running time of your Cicada.

INITIALIZE CARD

Press ENTER to begin initialization of the compact flash card.

A warning screen will then appear asking the user to press

ESC or ENTER. Upon selecting ENTER, and new message will

appear moments later indicating that the compact flash card

is now formatted for use in your Cicada.

SELECT REGION

At anytime, press SETUP on the key pad to access the Select

Geographic Region screen. Use the ARROW keys and ENT to

select between one of the four IEEE allocated regions for scan-

ning.

Page 8

CONTRAST ADJUSTMENT

At anytime, press 0 on the key pad to access the Contrast

Adjustment screen. Use the UP/DOWN ARROW keys to

increase or decrease LCD contrast. When finished, press ESC

to exit this screen.

BACKLIGHT ADJUSTMENT

At anytime, press 1 key to toggle the backlght off and on.

Remember that using the Cicada without the backlight on will

increase overall battery life.

WEP ENCRYPTION DETECTION

A “P” next to its associated AP address and signal strength

indicates that WEP (Wireless Equivalent Privacy) is enabled

and deteced for that particular AP. An empty space indicates

no WEP encryption.

Page 9

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