HP YELLOWJACKET PLUS User Manual
YELLOWJACKET
manual version 2.1
PLUS
Contents
INTRODUCTION................................................................................................. 2
STARTING UP................................................................................................... 2
YELLOWJACKET PLUS ACCESSORIES...................................................................... 2
MAIN SCREEN.................................................................................................. 4
OPTIONS SCREEN.............................................................................................. 4
FULL SPECTRUM SCREEN.................................................................................... 5
SINGLE CHANNEL SPECTRUM SCREEN.................................................................... 5
AP/STATION STATION ANALYSIS............................................................................. 6
AP/STATION SURVEY MODE................................................................................. 6
MULTIPATH / SIGNAL QUALITY INDICATOR (“Q” Factor)............................................... 7
DELAY SPREAD SCREEN...................................................................................... 7
GEIGER COUNTER SCREEN................................................................................... 8
SECURITY SCREEN............................................................................................ 8
UTILIZATION SCREEN......................................................................................... 9
USAGE SCREEN................................................................................................ 9
YELLOWJACKETPLUS GPS OPTION......................................................................... 10
RTC MARKER MODE........................................................................................... 10
TYPICAL INTERFERENCE EXAMPLES....................................................................... 11
YELLOWJACKET POCKET PC SOFTWARE FLOW CHART................................................. 14
TROUBLESHOOTING........................................................................................... 15
BATTERY CHARGING INSTRUCTIONS....................................................................... 16
TIPS.............................................................................................................. 17
BATTERY LIFE......................................................................................... 17
SOFTWARE INSTALLATION.......................................................................... 18
DRIVER INSTALLATION............................................................................... 18
SURVEYING............................................................................................ 18
YELLOWJACKET PLUS PC VIEWER UTILITY SOFTWARE................................................ 20
CHAMELEON WLAN SOFTWARE............................................................................. 22
YELLOWJACKET PLUS OPERATION WITH DOLPHIN SOFTWARE....................................... 23
DOLPHIN USER’S MANUAL................................................................................... 24
NETWORKING BASICS......................................................................................... 28
DSSS INTERNATIONAL CHANNEL CHART.................................................................. 29
YELLOWJACKET PLUS OPTIONAL ACCESSORIES......................................................... 30
HIVE™ INDOOR MAPPING SOFTWARE
GLOSSARY OF ACRONYMS
GENERAL SAFETY
ANTENNA RADIATION PATTERNS
YELLOWJACKET PLUS DATA SHEET
Page 1
INTRODUCTION
YellowjacketPLUS™ is an 802.11b analysis system consisting
of an HP iPAQ PocketPC® coupled with custom hardware and
software by BVS. This system contains a variety of features to
analyze 802.11b networks including spectrum analysis over all
14 channels (2.401 – 2.495 GHz), a list of AP’s and/or stations
over all 14 channels, multi-path and packet-error rate information for each individual MAC address. The YellowjacketPLUS
also contains a “Geiger-counter” feature to locate a single AP/
STAtion via audio/visual aids and a security feature to warn
the user of possible unauthorized AP/ STAtions in the area
based on a list of authorized MAC addresses. The data from
a YellowjacketPLUS may be logged into resident memory for
transfer to a desktop PC at a later time and then be converted
from binary to ASCII using “Chameleon WLAN”.
The top angle shows the removable antenna connection, sty-
lus, GPS antenna connection (optional), IrDA port and SD card
slot. Always keep the IrDA port clean and clear of obstacles
for data transmission.
STARTING UP YellowjacketPLUS
Power up your YellowjacketPLUS by pushing power but-
ton in upper right corner of unit. This power will automati-
cally power up the YellowjacketPLUS receiver also. When you
power down the iPAQ, (push the power button on the upper
right quickly-holding this button will also toggle the backlight
on and off) your Yellowjacket PLUS receiver will also shut
down. Connect the included antenna to the SMA connector
and remove the stylus by pushing down on it. Use your stylus to tap onto the Windows® icon in the upper left corner.
Choose YellowjacketPLUS in the pulldown menu. Data may be
transferred to a PC via the IrDA window or USB or serial connection. Install Yellowjacketplus software by connecting your
iPAQ to your PC and inserting included BVS software CD-ROM
(red disc) into PC to begin installation.
YellowjacketPLUS ACCESSORIES
YellowjacketPLUS includes a 2.4 GHz antenna, 2 battery packs
(10 Ni-MH cells), AC/DC charger & USB/IrDA communicator
sled and carrying case.
Page 2
Your iPAQ can be reset using 2 different methods.
If Yellowjacket software loses communications with
Yellowjacket hardware, perform a soft reset with your
stylus by pressing the reset button behind the battery
door at the bottom of the unit. Perform a hard reset by
holding in the two outer buttons for at least 10 seconds
while performing a soft reset. Warning! Hard reset
erases all RAM data from iPAQ so be sure to backup
all data and re-install your Yellowjacket application
software after a hard reset.
WARNING FOR USERS WITH BUILT-IN WIRELESS
(you must disable your iPAQ’s Bluetooth and WLAN)
1. Press the START button on the upper left hand side
of the touch screen.
2. Click on the “iPAQ Wireless” folder.
3. Click on the “Wireless Control” program.
4. Click on “All wireless features OFF”. The icons for
Bluetooth and WLAN will have red backgrounds when
disabled.
The Yellowjacket SD Backup Installer card has
been included as a courtesy. The card may be
used to log data files onto. It can also be used
on iPAQs that have never been initially set up at
the BVS factory, have had files erased or damaged in the ROM or after a hard reset has been
performed on an iPAQ. Yellowjacket software
that has been erased/lost from RAM may be
restored at anytime by accessing the “install”
file from the SD Card or Storage Card directory.
Always make sure batteries are fully charged
when doing any software installs. Yellowjacket
software that has been erased from RAM may
be restored at anytime by accessing the “reinstyj” file from the \\iPAQ File Store\\My Device
directory.
YellowjacketPLUS
with internal iPAQ
YellowjacketPLUS charger
with and power cord
2.4 GHz antenna
IrDA USB
interface
Direction Finding
Antenna (optional)
Ni-MH battery packs
iPAQ / YellowjacketPLUS
battery pack charger/cradle
Page 3
Yellowjacket Main Screen
Yellowjacket PLUS main screen allows access to all software
menus. Use the stylus or the joystick to make a selection. You
can back up and access the main screen anytime by pressing
the joystick UP, DOWN, LEFT or RIGHT (the direction is indicated at the bottom of the page.
Note that the firmware and serial number in the upper left
corner appears indicating serial connection between the iPAQ
and the Yellowjacket receiver.
RTC MARKER MODE
YellowjacketPLUS uses the internal real-time clock of the iPAQ for timing.
In addition, there is a marker that starts at 0. By pressing the button to the
right of the marker value, the marker increases by 1. These values are
stored in any log files created for later conversion by Chameleon.
Note: Users should normally see genuine
firmware and serial numbers on this screen
when Yellowjacket is functioning properly.
If your firmware and serial number appear
as 0.00 and XXXXXX, then the iPAQ software is not communicating properly with
the Yellowjacket receiver. Try troubleshooting procedures found in this user’s manual.
Yellowjacket Options Screen
Press the iPAQ’s joystick to the right when in the Main Screen
to access this options screen. Here, you may turn on logging
and clear it from memory, enable security, enable all STAtion
mode and enable Dolphin™ Mapping Interface.
Note: Logging mode will only log data from the screen (mul-
tipath, spectrum, utilization, etc.) you are currently running.
The data file containing all data collected when logging is
turned ON is called LOG.YJ3.
Note: Security mode should only be enabled after the user
has set the authorized MAC addresses in the security screen.
Otherwise, all APs detected will be seen as ‘unauthorized’ and
set off the security alarm until it is disabled.
Note: Dolphin Realtime Mapping software requires
YellowjacketPLUS’ internal GPS receiver option and a laptop
with a USB connection. Do not enable this option unless you
have the appropriet software, hardware and want to map your
802.11b study in real-time.set off the security alarm until it is
disabled.
Page 4
Full Spectrum Mode
The full spectrum screen has three available TRACES. These
traces can be PEAK HOLD and VISIBLE/INVISIBLE. Only one
trace can be active at any time. The buttons on the screen
below the graph change the settings on the spectrum screen.
There is also a PEAK SEARCH button that will put a diamond
on the highest point in the spectrum at that time. RSSI and
frequency information for that point will then be displayed on
top of the graph.
The BLINKING HEART on the top right indicates an active
802.11b signal. This icon also applies to the other spectrum
and multipath screens.
There is a highlight bar that allows the user to select a particular channel. This is navigated by use of the joystick and/or
arrow buttons on the menu. After highlighting a particular
channel, the user may enter into single channel spectrum
mode by pressing the UP arrow on the joystick or the UP arrow
on the menu bar.
You may take a snapshot of the full spectrum screen by pressing the CAMERA BUTTON on the menu bar. The data for the
screen will then be stored along with RTC or GPS information.
The PC Snapshot Viewer Utility will allow you to view these
snapshots on the PC and then print them out on a printer.
Single Channel Spectrum
Single channel spectrum mode works exactly like the full
spectrum mode with the exception that you are now zoomed
in to a single 802.11b channel.
NOTE: 802.11b traffic will be seen in bursts on the spectrum
screen. The energy will only rise as packets are transmitted.
You will see a constant RSSI level in the AP screens because
the RSSI measurement is synchronous with the reception of the
packet. The spectrum screen is sweeping the frequency band
because it is looking for ALL 2.4GHz energy, not just 802.11b
packets. In this way, interferers will also appear. It sweeps as
fast as it can, but if a packet is transmitted while the sweep is
at another frequency, the energy will not be seen.
Page 5
MAC AP/Station Survey Mode
Choose “AP List” mode from the main screen to get to the AP
List screen. The first screen will “survey” all 14 channels for
available AP’s. This screen will show AP’s ONLY. The single
channel mode can show all stations.
The record number, absolute channel, whether or not it is
authorized (if security is enabled), the MAC address, the SSID
(for AP’s), the RSSI, and WEP (privacy enabled bit) are shown
for each address.
Arrows will appear in the header if more than 5 AP’s are being
detected. The user can then scroll up and down to view all of
the AP/STA captured data. An address will be removed from
the list if it hasn’t been detected the next time that channel is
swept.
AP/Station Single Channel Mode
To see the AP’s/stations for a single channel, choose the channel by tapping the “SURVEY ALL CHANNELS” area above the
AP list. This will switch the list to APs only from one channel.
Page 6
Multipath / Signal Quality Indicator (“Q” Factor)
The bar graph on the lower left hand side of the multipath and
the delay spread screens is known as the ‘Q’ factor graph. This
graph uses a formula to determine the quality of the direct
path and reflections of the signal by determining the ‘fatness’
of the main peak compared to the height of the direct path
component.
As the direct path gets stronger and sharper, the ‘Q’ factor
goes up. As the path gets weaker and fatter, the ‘Q’ factor
drops, signaling a possible multipath interference concern.
Delay Spread Screen
By moving left from the multipath screen using the joystick
and/or menu arrow, the user enters the delay spread screen.
The left of this screen shows the same information as the multipath screen. The upper right hand side of the delay spread
screen shows a running total and current delay spread in
nanoseconds.
The next graph below the running total graph is the cumulative
delay spread graph (count vs. spread). The X axis is also in
nanoseconds. The spread is cumulative and can be rest using
the provided button.
Page 7
“Geiger-Counter” Mode
To find an AP/station using audible sounds as a guide, press
up on the joystick to enter the “Geiger-counter” screen. The
colors will approach white when nearing and/or pointing
directly at an AP or station. The Geiger counter sound will
also get stronger with more frequency.
Security Screen
To go to the security screen, press the security icon from the
main screen. The screen shown will appear. You may enter a
list of AP’s that are authorized (up to 1000) to be a part of the
network by entering them in the top left edit field and then
pressing the ‘ADD’ button. Press ‘DEL’ to delete an entry from
the list after highlighting that entry. Press ‘CLR<--’ to clear the
authorized list.
An authorized list can be generated from the Yellowjacketplus
by following these steps. First, go into survey mode or single
channel mode in the AP List section. Then, once all of the AP’s
have been located, go back into the security screen. Press the
‘GENERATE’ button. All of the AP’s(stations) will be transferred
into the authorized list.
When the security mode is enabled from the menu bar in the
AP/STA mode, APs and STAtions which aren’t in the authorized list will be put in the unauthorized list and a warning
message will appear.
An AP/station can be moved over to the authorized list by
pressing the ‘ADD’ button. To clear the unauthorized list, press
the ‘CLR-->’ button.
A list of AP’s can be saved and retrieved from/to the authorized
(auth.lst) and unauthorized (unauth.lst) lists by choosing the
save/retrieve options from the root directory of the Pocket
PC.
Unauthorized Warning
When YellowjacketPLUS detects any AP
that is not included in the Authorized list,
an ALERT! screen will appear and audible
warning beep will be heard. Press OK to
close the ALERT! screen. Remember that
YellowjacketPLUS will continue to sound off
the alarm each time any unauthorized AP is
detected until it is placed in the Authorized
list by the user. Check your Options Screen
(press joystick right in Main Screen) to turn
this security alert ON or OFF.
Page 8
Utilization Screen
The utilization screen shows bandwidth utilization for every
802.11b channel. The top of the screen shows the current
channel being scanned (highlighted). The chart below shows
the utilization from 0 to 100% for channels 1 thru 14. It is color
coded to show the percentages for each data rate, as keyed on
the bottom of the screen.
The percentages add up the throughput of data at each data
rate. For instance, if there were packets at 1Mb/s containing
500,000 bits, then the corresponding percentage at 1Mb/s
would be 50%. This would be the same percentage for receiving 5.5 Mb/s on 11 Mb/s packets.
The bars stack on top of each other to reveal no more than
100%.
By tapping the grid, the display toggles between a range of
0-10% and 0-100%. This is for zooming in on low-utilization
statistics.
Usage Screen
The usage screen displays the percentage of packets being
seen by Yellowjacket PLUS in channels 1 through 14. The
graph at the bottom shows RSSI bars for APs detected and
is arranged by channel number. Note that the more APs that
occupy each channel, the thinner the vertical RSSI bars will
become (each bar represents a single AP). The PER/USAGE
calculations are now based on a rolling average over the last
number (1024) points.
Page 9
Yellowjacket PLUS GPS Option
The GPS screen of the Yellowjacket Plus provides position and
timing information from the Global Positioning System of satellites. The Motorola GPS receiver provides accurate information after synchronizing with at least 3 of the 24 satellites.
The Yellowjacket Plus must have a clear view of a good portion of the sky in order to communicate with the GPS satellites. The GPS receiver should lock within a few minutes. The
only exception is when the unit is turned on in a new area. If
the receiver was last turned on in California and now in New
Jersey, the GPS receiver could take up to an hour to lock.
The status bar at the bottom of the Yellowjacket Plus screen
shows the current date and time (Greenwich Mean) as well as
the current latitude and longitude in decimal degrees. There
is also a separate GPS screen which shows satellite information.
The GPS information is stored in the log file when enabled for
later conversion by Chameleon. Each record will be tagged
with GPS information if so desired.
If you require GPS time-stamping with your 802.11b measurements and Yellowjacket PLUS does not display the GPS screen
or the main menu screen does not show a bottom GPS data
line similar to this:
We recommend you send in your Yellowjacket PLUS to be
upgraded with the internal GPS option. See accessories page
in this manual or contact BVS for more information.
RTC MARKER MODE
If there is no GPS module attached, the YellowJacket system
uses the internal real-time clock of the iPAQ for timing. In
addition, there is a marker that starts at 0. By pressing the button to the right of the marker value, the marker increases by 1.
These values are stored in any log files created for later conversion by Chameleon. The screen above shows Yellowjacket
with an internal GPS receiver detected. The screen below
shows the RTC window when no GPS receiver is detected.
Page 10
Yellowjacket Typical Spectrum Interference Examples
INTERFERENCE Narrow Band - Continuous Wave
INTERFERENCE Microwave Oven - Blue Trace - Peak Hold Red Trace - Realtime
Page 11
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