Berkeley Varitronics Systems Mantis Bedienungsanleitung
Mantis
manual version 1.4
Page 1
Contents
GETTING STARTED...................................................................................................... 2
MAIN SCREEN........................................................................................................... 2
PRODUCT INFORMATION.............................................................................................. 3
SEARCHING.............................................................................................................. 3
ACQUIRING NAMES..................................................................................................... 3
AVAILABLE DEVICES.................................................................................................... 3
SELECTED DEVICE...................................................................................................... 4
SERVICE.................................................................................................................. 4
MEASUREMENT SELECTION........................................................................................... 4
SIGNAL STRENGTH..................................................................................................... 5
PER........................................................................................................................ 5
OPTIONS.................................................................................................................. 5
USING A DIRECTION FINDING ANTENNA............................................................................ 6
BATTERY TIPS........................................................................................................... 7
NETWORKING BASICS.................................................................................................. 8
GLOSSARY OF ACRONYMS............................................................................................ 10
BLUETOOTH GLOSSARY................................................................................................ 11
GENERAL SAFETY....................................................................................................... 24
ANTENNA RADIATION PATTERNS
MANTIS DATA SHEET
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Mantis™ is a handheld, wireless transceiver designed
specifically for installing, sweeping and verifying
Bluetooth devices and parameters. The instrument
identifies all nearby Bluetooth devices and their status
in dBm.
Mantis uses common AA battery cells found in any con-
veinence store. Ni-Cad, Alkalines, Ni-MH and Li-Ion
cells may all be used. Mantis does require 4 AA cells
with at least 1500 mAh per cell. BVS supplies 8 Ni-MH
battery cells and a Ni-MH charger to get users working
right out of the box. Ni-MH cells are recommended for
best performance from your Mantis. See the charger’s
instructions and battery tips in this manual.
Mantis also includes a simple 2.4 GHz threaded anten-
na that screws right into the top of the unit. Additional
antennas may be ordered from BVS through BVS.
At the top of the Mantis rest the power switch and
antenna connector. The power switch is a simple two
way toggle switch. The antenna connector (middle) is
an SMA Female 50 ohm. The provided antenna easily
screws and unscrews from this connector. Be sure to
unscrew antenna when transporting the Mantis.
GETTING STARTED
Operation of the Mantis is straightforward. Insert 4
fresh battery cells into removable pack. Close back up
and power on the Mantis. The Mantis will display the
startup screen followed by the Main Screen.
Mantis Main Screen
Use the UP/DOWN arrows to scroll through menu
selections. Push the RIGHT arrow button to make a
selection and push the LEFT button to move back one
previous screen.
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Product Information
This screen displays the current version of Mantis that
you are using. Visit www.bvsystems.com to find out if
you have the latest Mantis version.
Searching...
From the Main Screen, select Search for Devices and
press the RIGHT arrow key. This screen will appear.
Mantis takes approximately 10 seconds for a complete
scan of nearby Bluetooth devices. The devices found
will be listed by their ID numbers first.
Acquiring Names...
After acquiring the ID of each device, Mantis will go
back and list the name given to each device (up to 20
characters).
Available Devices
After the 10 second scan, Mantis will list all Bluetooth
devices found that are currently powered and opera-
tional. Use the UP and DOWN arrow keys to scroll
through the list of devices. Mantis creates a list of
up to 16 devices at once. Once you have selected the
device you wish to verify, press the RIGHT arrow key to
select that device. Press the LEFT arrow key at anytime
to return to the previous menu.
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Selected Device
This screen provides basic information about the
device including the ID number, the name and the
class. Class is an attribute assigned by the Bluetooth
standard. Here are some common classes:
Use the DOWN arrow key to see Service information for
the selected Bluetooth device.
Service
This screen provides basic Service information regard-
ing the nature and capabilities of the selected Bluetooth
device. An x to the left of any category identifies it as a
known Service. Use the DOWN arrow key to see more
Service information for the selected Bluetooth device.
Service (continued)
You may use the UP arrow key to scroll back up to
the top of the Service list. Use the LEFT arrow key to
return back to the Main Screen. Use the RIGHT arrow
key to see the Signal Strength of the selected Bluetooth
device.
Measurement Selection
Select the type of measurement you wish to make using
the UP or DOWN arrow key. After you select either RSSI
or PER, use the RIGHT arrow key to continue to the
desired measurement screen.
Signal Strength
This screen indicates the current received signal
strength of the selected Bluetooth device in dB on a
scale from -20 to 20 dB. The orange receive LED on
the front of the Mantis will blink whenever any data
is received. Use the arrow keys to return to the Main
Screen or perform another Search.
Note: A transceiver that wishes to support power-con-
trolled links must be able to measure the strength of
the received signal and determine if the transmitter on
the other side of the link should increase or decrease
its output power level. A Receiver Signal Strength
Indicator (RSSI) makes this possible.
The RSSI measurement compares the received signal
power with two threshold levels, which define the
Golden Receive Power Range. The lower threshold
level corresponds to a received power between -56
dBm and 6 dB above the actual sensitivity of the
receiver. The upper threshold level is 20 dB above the
lower threshold level to an accuracy of + 6 dB.
(BLUETOOTH SPECIFICATION Version 1.1)
PER
This screen indicates the PER (Packet Error Rate) of
the selected Bluetooth device from 0 to 100 percent. A
PER of 0% indicates optimal transmission of Bluetooth
data packets.
OPTIONS
Mantis provides two privacy options. To enable or
disable an option, use the UP or DOWN arrow keys to
select the option and the RIGHT arrow key to toggle the
enabled “X” on or off. The LEFT arrow key returns to
Main screen.
Page Scan Enabled
When enabled, Mantis answers page scans from other
Bluetooth devices. Page scans provide the Bluetooth
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MAC address and information about features the device has. Disabling this option prevents the Mantis from
being seen by other Bluetooth devices. The default is enabled.
Send Friendly Name
When enabled, Mantis responds to requests for a user friendly name with “BVS Mantis Bluetooth Tester”.
When disabled, it responds with a blank string.
USING A DIRECTION FINDING ANTENNA
Mantis ships with an optional Directon Finding Antenna for locating
and pinpointing local Bluetooth devices. This antenna may be removed
at anytime and replaced with the standard omni-directional antenna.
See antenna specifications and guidelines below.
2.4 GHz Direction Finding
Corner Reflector Screw SMA cable
into connector
here.
Secure these screws to
the top of Mantis case.
BATTERY TIPS
The Mantis™, Grasshopper™, Locust™, Yellow Jacket™ and Yellow Jacket Plus (fomally called Scorpion), Beetle™,
Cricket™, and Cicada W-LAN receivers use 4 or 5 Ni-MH long-lasting “AA Cells”.
1. Ni-MH batteries do not charge to full capacity the first time they are charged.
2. Ni-MH batteries do not charge to full capacity the first time they are charged after a long period of inactivity. or after a long
period of non-use.
Cause:
When charging Ni-MH batteries for the first time after long-term storage, deactivation of reactants may lead to increased
battery voltage and decreased capacity, (which causes premature termination of charging). Because batteries are chemical
products involving internal chemical reactions, performance deteriorates with prolonged storage. This is normal in Ni-MH bat-
teries.
Resolution:
Ni-MH batteries may not charge to full capacity the first time they are charged, or after a long period of inactivity.
The first-time charge of the Ni-MH Rechargeable Battery Pack should take approximately 2 hours. If the Receiver Dock light
turns green, indicating a full charge, in less than 2 hours, repeat the charge cycle as follows:
First-time Charge:
1. To begin charging, place the instrument on the Charge Dock. Refer to your instrument’s User Guide for details.
2. When the charge light turns green, remove the W-LAN Receiver from the dock and place back on the dock after several
seconds.
3. Repeat steps 1 and 2 three or four times or until the combined charge time is 2 hours.
Subsequent charges of the W-LAN Ni-MH Battery Pack will not require multiple charging cycles unless left uncharged for a
long period of time (greater than 2 months).
Networking Basics
Packets and traffic
Information travels across a network in chunks called “packets.” Each packet has a header that tells where
the packet is from and where it’s going, similar to what you write on the envelope when you send a letter.
The flow of all these packets on the network is called “traffic.”
Hardware addresses
Your PC “listens” to all of the traffic on its local network and selects the packets that belong to it by check-
ing for its hardware address in the packet header or MAC (Media Access Control). Every hardware product
used for networking is required to have a unique hardware address permanently embedded in it.
IP addresses
Since the Internet is a network of networks (connecting millions of computers), hardware addresses alone
are not enough to deliver information on the Internet. It would be impossible for your computer to find its
packets in all the world’s network traffic, and impossible for the Internet to move all traffic to every net-
work, your PC also has an IP (Internet Protocol) address that defines exactly where and in what network
it’s located. IP addresses ensure that your local Ethernet network only
receives the traffic intended for it. Like the hierarchical system used to define zip codes, street names,
and street numbers, IP addresses are created according to a set of rules, and their assignment is carefully
administered.
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Put another way, the hardware address is like your name; it uniquely and permanently identifies you. But it
doesn’t offer any clues about your location, so it’s only helpful in a local setting. An IP address is like your
street address, which contains the information that helps letters and packages find your house.
Rules for Sending Information (Protocols)
A protocol is a set of rules that define how communication takes place. For instance, a networking proto-
col may define how information is formatted and addressed, just as there’s a standard way to address an
envelope when you send a letter.
Networking Devices:
Bridges
A bridge joins two networks at the hardware level. This means that as far as other protocols are concerned,
the two networks are the same.
Routers
A router connects two IP networks. In contrast to a bridge, which joins networks at the hardware level, a
router directs network IP traffic based on information stored in its routing tables. A routing table matches
IP addresses with hardware addresses. The router stamps each incoming IP packet with the hardware
address that corresponds to that IP address. As a result, the packet can be picked up by the right computer
on the hardware network.
DNS (Domain Name Server)
Networks (domains) on the Internet have names that correspond to their IP addresses. A Domain Name
Server maintains a list of domain names and their corresponding addresses. This is why you can go to
Berkeley’s Web site by entering www.bvsystems.com, instead of the IP address.
Networking Terms:
TCP/IP (Transport Control Protocol/Internet Protocol)
TCP/IP is a collection of protocols that underlies almost every form of communication on the Internet.
DHCP (Dynamic Host Control Protocol)
DHCP is a method of automatically assigning IP addresses. Instead of assigning addresses to individual
users, addresses are assigned by the DHCP server when clients need them. This means that instead of
entering several fields of long addresses, users need only to select DHCP as their configuration method
for IP networking.
PPP (Point-to-Point Protocol)
PPP is the most common protocol for providing IP services over a modem.
NAT (Network Address Translation)
NAT is used to share one IP address among several computers. A device set up as a NAT router uses a col-
lection of “private” IP addresses (in the range 10.0.1.2 to 10.0.1.254 for example) to allow several com-
puters to access the Internet using one “public” IP address. When a computer using a private IP address
requests information from the Internet, the NAT router keeps a record of the computer making the request,
and sends the information to the Internet using its own IP address. When the response comes back from
the Internet, the NAT router forwards the packet to the appropriate computer.
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Glossary of Acronyms
AC Alternating Current
A/D Analog to Digital converter
AGC Automatic Gain Control
AP Access Point
Applet a small Application
BER Bit Error Rate
BPSK Binary Phase Shift Keying
BSS Basic Service Set
BW Band Width
CDMA Code Division Multiple Access (spread spectrum modulation)
DC Direct Current
D/A Digital to Analog
dB decibel
dBm decibels referenced to 1 milliwatt
DOS Digital Operating System
DSP Digital Signal Processing
DSSS Direct Sequence Spread Spectrum
ESS Extended Service Set
FIR Finite Impulse Response
GHz GigaHertz
IF Intermediate Frequency
I and Q In phase and Quadrature
IBBS Independent Basic Service Set
kHz kiloHertz
LCD Liquid Crystal Display
LO Local Oscillator
MAC Medium Access Control
Mbits Megabits
MHz MegaHertz
NIC Network Interface Card
OFDM Orthogonal Frequency Domain Multiplexing (802.11a)
PC Personal Computer
PCS Personal Communications Service (1.8 to 2.1 GHz frequency band)
PER Packet Error Rate
PN Pseudo Noise
QPSK Quaternary Phase Shift Keying, 4-level PSK
RF Radio Frequency
RSSI Receiver Signal Strength Indicator
SSID Service Set IDentification
UCT Universal Coordinated Time
VAC Volts Alternating Current
VGA Video graphic
WLAN Wireless Local Area Network
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