Firefly DE550 User Manual

1 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

W

IRELESS

M

ICROSCOPE

DE550

User Manual

THANKS FOR SELECTING A WIRELESS FIREFLY MICROSCOPE

To take full advantage of this product’s advanced capabilities, and to properly and safely use this product, please read the manual carefully.

2 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Copyright 2011 by Firefly Global. All rights are reserved. No one is permitted to reproduce or duplicate, in any form, this manual or any part thereof without permission from Firefly

Global (www.fireflyglobal.com).

Firefly Global assumes no responsibility for any injury, or for any illegal or improper use of the product, that may result from failure to use this product in accordance with the instructions, cautions, warnings, or indications for use published in this manual.

Software in this product is copyright of Firefly Global and its vendors. All rights are reserved.

The software is protected by U.S. and international copyright laws and international treaty provisions applicable worldwide. Under such laws, the licensee is entitled to use the copy of the software incorporated with this instrument as intended in the operation of the product in which it is embedded. The software may not be copied, decompiled, reverse-engineered, disassembled or otherwise reduced to human-perceivable form.

This is not a sale of the software or any copy of the software; all rights, title, and ownership of the software remain with Firefly and/or its vendors.

Caution: Changes or modifications not expressly approved by Firefly Global will void the purchaser’s authority to operate the equipment and its warranty.

3 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

T

ABLE OF

C

ONTENTS

Table of Contents.......................................................................................................3

Introduction ..............................................................................................................5

Warnings & Cautions .................................................................................................6

Warning .................................................................................................................................... 6

Caution...................................................................................................................................... 6

Check List ..................................................................................................................8

Nomenclature ............................................................................................................9

Operation.................................................................................................................10

Setting up the microscope with specula ： .................................................................................. 10

Setting up the F.O.V extender and specula: ............................................................................... 11

Setting up the software application ： ........................................................................................ 12

Connect to PC ： ....................................................................................................................... 12

Power the Device On ： ............................................................................................................ 12

Charging Battery:..................................................................................................................... 13

Channel Mapping: .................................................................................................................... 13

Using the Firefly Microscope System: ....................................................................................... 14

Recommended holding position: ............................................................................................... 14

Brightness Adjustment: ............................................................................................................ 14

Using the image capture control: .............................................................................................. 14

Using Focus:............................................................................................................................ 15

Function as a laryngoscope....................................................................................................... 15

Standby and Remove device:.................................................................................................... 16

Launch the Software Application: .............................................................................................. 17

Viewing the Images: ................................................................................................................ 17

Tool bars ................................................................................................................................. 18

Control tool bars: ..................................................................................................................... 18

Image tool bars: ...................................................................................................................... 18

Device Tool bars: ..................................................................................................................... 19

Maintenance and service .........................................................................................20

Cleaning recommendation......................................................................................................... 20

Recycling the system components ............................................................................................. 20

Accessories.............................................................................................................................. 20

Service policy........................................................................................................................... 21

Specifications ..........................................................................................................22

Limited Warranty ...................................................................................................23

4 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Troubleshooting.......................................................................................................25

Frequently Asked Questions (FAQs): ......................................................................................... 25

Wireless interference recommendations.................................................................27

5 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

I

NTRODUCTION

The Wireless Firefly Microscope System consists of a wireless digital Microscope, a compact USB receiver, software application and a charge cable. Only a computer equipped with a free USB port is needed to use the system.

The Wireless Firefly Microscope System is designed for effective operation under a variety of conditions and typical video parameters are set at the factory. The software allows users to adjust most parameters including Saturation, Hue, Brightness, Contrast and Sharpness for desired applications.

System Requirements

The Firefly Microscope System requires a user PC system running Windows XP Service Pack 2 or later operating system, a viewing screen, and a PC with an available USB 1.1 or 2.0 port.

Intended use

The Wireless Firefly Microscope System is intended to allow inspection of the external ear, ear canal, and tympanic membrane under magnification. A secondary use of may be for general illumination of the throat and/or nasal cavities or assessing flexibility of the tympanic membrane.

User Profile

The Wireless Firefly Microscope System is intended for applications such as:

„ Science Education

„ Medical examinations

„ Veterinarian use

„ Self health monitoring

6 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

WARNINGS

&

CAUTIONS

Please familiarize all operating personnel with the general safety information in this summary. Specific warnings and cautions are also found throughout this manual.

Warning

A warning statement in this manual identifies a condition or practice which if not corrected or discontinued immediately, could lead to injury, illness, or death.

„ Do not use in the presence of flammable anesthetics.

„ This product has no user serviceable/replaceable parts. Please refer all service to authorized service personnel.

„ This instrument is not intended to be used in the eye.

„ This product generates and records reference images from inputs obtained from the software application FireflyPro. These reference images are not intended for medical or other diagnostic purposes.

Caution

A caution statement in this manual identifies condition or practice, which if not corrected or discontinued immediately, could lead to equipment failure, e quipment damage, or data loss.

„ In order to obtain optimum performance and ensure patient safety, thoroughly read this manual.

„ Do not use the Firefly Microscope if you notice any signs of damage to the components of the system. Contact customer service for immediate assistance.

„ Do not attempt to disinfect the Firefly Microscope System using glutaraldehyde products, ethylene oxide gas, steam or any other liquid or gas disinfectant.

„ The signal output (USB Port) connector is intended for connection of only devices complying with IEC 60601-1, or other IEC standards (for example, IEC 60950), as appropriate to the device. Connecting additional devices to the Firefly Microscope System is not allowed. You are

7 User Manual for Wireless Firefly Microscope DE550 Version: 1.3 responsible for verifying that the system complies with the requirements of the system standard IEC 60601-1-1.

„ This product complies with current required standards for electromagnetic interference and should not present problems to other equipment or be affected by other devices. As a precaution, avoid using this device in close proximity to other equipment.

„ Do not apply alcohol, chemicals, or water to the lens. Any liquids entering the optical assembly will damage internal components.

8 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

C

HECK

L

IST

Before starting, check that all the following items have been included with your product. If anything is

missing, contact your dealer.

     

 

Microscope x 1pc Receiver x 1 pc

               

Clip (attached to scope) x 1 pc

Software Application CD

Power Adapter x 1pc

100-240V AC to 5V USB DC

Notice: Actual Shape may vary.

Specula (S/M/L) x 5 sets

USB DC power cord x 1 pc

9 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

N

OMENCLATURE

10 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

O

PERATION

Setting up the microscope with specula

：

Only accepts original specula qualified for use with Firefly microscopes

Plug the specula into the round concave guide in front.

To remove: Simply pull to unplug the specula.

Ensure a tight fit for proper operation.

11 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Setting up the F.O.V extender and specula:

To obtain a deeper view of the subject under examination, the optional Field of View (F.O.V) extender may be attached. F.O.V extenders may be ordered separately.

Plug the F.O.V Extender into the round concave guide in front of the microscope.

Plug the specula into the round concave guide in front of the F.O.V. Extender.

To remove: Simply pull to unplug the specula.

Ensure a tight fit for proper operation.

12 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Setting up the software application

：

Prior to using the Firefly Microscope for the first time, install the FireflyPro software application following the instructions provided with the installation CD.

Setting up the software application

：

Prior to using the Firefly Microscope for the first time, install the FireflyPro software application following the instructions provided with the installation CD.

Connect to PC

：

Connect the compact receiver to the PC’s USB port

Power the Device On

：

Push the ‘Power Button’ at the rear of the microscope to activate the device. An indicator light will turn on to confirm the power status.

13 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Charging Battery:

„ Duration:

The Wireless Firefly Microscope has a built-in high efficiency lithium battery that enables more than 4.5 hours continuous operation.

„ Charging the Battery:

Through the mini-USB port at the rear of the microscope, the embedded battery can be charged with the provided USB DC cable. The cable must be connected to the USB port of a PC or to the

“USB Power Adapter”, which can charge directly from a wall outlet.

„ Overload Protection:

The overload protection circuit will prevent overcharging when the battery is full and the

“Indicator” will turn green.

„ Power Indication:

The power indicator light is normally red during operation, but it will turn blue when the remaining battery life is less than 30 minutes.

The lithium battery is a delicate and consumable item. It is expected to last through years of use and is guaranteed for twelve months from its purchase against defects. If there is any battery related issue, please contact customer service immediately. Battery replacement by unauthorized personnel or replacement with unauthorized batteries may damage the system and voids the overall warranty.

Channel Mapping:

On the rear right side of the microscope, there is a switch allowing users to set the wireless channel. Both the receiver and microscope must be set to the same channel for proper operation:

‹ CH 1: 2.4GHz channel 1

‹ CH 2: 2.4GHz channel 2

‹ CH 3: 2.4GHz channel 3

‹ CH 4: 2.4GHz channel 4

14 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Using the Firefly Microscope System:

Recommended holding position:

It is suggested to hold the microscope, transparent cover forward, with the thumb held on the equipment. This holding position offers relative stability and allows lens control. The index finger is still free to rotate and adjust the focus wheel (as shown).

Brightness Adjustment:

On left rear side of the microscope, a knob allows the user to control brightness of the LEDs:

‹ Backward Turn: Decrease Brightness

‹ Forward Turn: Increase Brightness

Using the image capture control:

Press and release the Capture button to capture image frames. The system will generate a shutter sound from the PC speaker as confirmation. C a p t u r e the

15 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Using Focus:

Based on the relative distance of the observed object, the focus wheel can be turned for a clear image.

When a higher magnification is required, the focus wheel can be turned to the left (see below). If a larger field of view is required, the microscope can be moved farther away and the wheel turned to the right.

Default Position: Match the scale 50 to arrow mark.

Free Focus:

Rotate wheel to fine tune the image.

Function as a laryngoscope

The Firefly Microscope can b e transformed into a laryngoscope b y r e m o v i n g t h e specula and attaching a spatula on the clip.

16 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Standby and Remove device:

To temporarily turn off or remove the device, push and release the power button to the “OFF” position. The device must also be turned off through the Windows operating system:

• On your Microsoft Windows Desktop, click My Computer in the left pane. Double-click the USB Video Device (Wireless

Digital Microscope in Windows Vista and Windows 7).

After turning off the device through Windows above, the compact receiver can be unplugged from the PC’s USB port.

Using this sequence will avoid transient voltages from potentially causing hardware damage.

17 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Launch the Software Application:

Double-click the FireflyPro.exe icon on your computer desktop:

Viewing the Images:

FireflyPro software controls your Firefly Microscope. The Microscope communicates with the

PC through the USB compact receiver. The user can configure the video properties, review live images, capture images, record video clips and perform a variety of powerful measurement and documentation functions.

The main features of FireflyPro are shown below:

18 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Tool bars

The Tools bars enable quick access to the functions of FireflyPro software. The tool bars can be grouped into Control, Images and Device tool bar sets.

Control tool bars:

Icon Icon Name

Play

Pause

Video Setting

Function Description

Start the video stream preview

Freeze live video image frame

Configure video properities

Video Recording Video recording and settings (frame, period, quality, codec etc...)

Undo Undo the previous Rotation, Text Comment and Zoom

Redo

ROI

Redo the previous Rotation, Text Comment and Zoom

Select region of interest (ROI) on live video stream

Undo ROI

Rotation

Mirror

Flip

Zoom Ratio

Revoke ROI selection

Rotate live video 0°, 90°, 180°, 270°

Mirror live video horizontally

Flip live video vertically

Text Comment Add text layer on image

Image Measure Launch image measurement application

Zoom +

Zoom -

Zoom-in live video up to 300%

Zoom-out live video down to 10%

Set Zoom ratio from 10-300

Image tool bars:

Icon Icon Name

Save Image

Function Description

Store frozen image

Image Capture Capture and store instant image from live video

Image Browsing Browse images in working directory

Working

Directory

Pop-up to select working directory path

Edit working directory path

19 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Device Tool bars:

Icon Icon Name Function Description

Device Connect Refresh image device connection

Select available image devices, such as Microscope

Select a video format (default 640x480 YUY2)

20 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

M

AINTENANCE AND SERVICE

Cleaning recommendation

CAUTION Do not apply alcohol, chemicals, or water to the lens. Any liquids entering the optical assembly will damage internal components.

Use a dry cloth to clean the Digital Firefly Microscope System on a weekly basis.

Recycling the system components

Within the EU

Do not dispose of this product as unsorted municipal refuse. Submit for separate collection as specified by Directive 2002/96/EC of the European

Parliament and the Council of the European Union on Waste Electronic and

Electrical Equipment (WEEE).

If this product is contaminated, this directive does not apply. For more specific disposal information contact Customer Service.

Outside the EU

When the product and its components reach end of life, recycle the product according to national, state, and local regulations.

Accessories

REF Description

FY-MU-180 USB charger cable, 180cm length

GT600RU USB Compact Receiver for PC

GT600RV

FY-PWR-USB

USB Compact Receiver for Video

100-240V AC to 5V DC USB >0.8A

FY-DE-3U

FY-DE-4U

FY-DE-5U

Replacement poly Speculum 3mm

Replacement poly Speculum 4mm

Replacement poly Speculum 5mm

21 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

Service policy

All repairs on products under warranty must be performed or approved by Firefly or its authorized resellers.

Unauthorized repairs will void the warranty. In addition, whether or not covered under warranty, any product repair shall exclusively be performed by Firefly-certified service personnel.

If the product fails to function properly — or if you need assistance, service, or spare parts — contact your Firefly reseller.

Before contacting your reseller, try to duplicate the problem and check all accessories to ensure that they are not causing the problem. When calling, please be prepared to provide:

‹ Product name and model number and complete description of the problem.

‹ Serial number of your product (if applicable).

‹ Complete name, address and phone number of your facility.

‹ For out-of-warranty repairs or spare parts orders, a purchase order (or credit card) number.

‹ For parts orders, the required spare or replacement part numbers.

If your product requires warranty, extended warranty, or non-warranty repair service, please contact your Firefly reseller. A customer service representative will assist you in troubleshooting the problem and will make every effort to solve it over the phone, avoiding potential unnecessary returns. In case a return cannot be avoided, the representative will record all necessary information and will provide a

Return Authorization number, as well as the appropriate shipping address. The Return Authorization number must be obtained prior to any return.

If you have to return your product for service, follow these recommended packing instructions:

‹ Disconnect all hoses, cables, sensors, power cords, and ancillary products (as appropriate) before packing, unless you suspect they are associated with the problem.

‹ Wherever possible use the original shipping carton and packing materials.

‹ Include a packing list and the Return Authorization number.

It is recommended that all returned goods be insured. Claims for loss or damage to the product are the responsibility of the sender.

22 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

SPECIFICATIONS

Dimensions (approximate)

Length: 11.4 cm (4.5 inches)

Height: 3.7. cm (1.5 inches)

Width: 3.7 cm (1.5 inches)

Protection against ingress of

water

Operating conditions

Relative humidity

Shipping and storage conditions

Relative humidity

Wireless

Power consumption

Sensitivity

Noise ratio

Antennae resistance

Channel spectrum

Battery (Lithium battery)

IPXØ

30% to 75% noncondensing

95% noncondensing max.

Implemented with 2.4 GHz Technology

Less than 10mW

-87dBm

47dBm

50 Ω

4 channels range from 2410 to 2470 MHz

More than 4.5 hours continuous usage

Safety Compliance

FCC, CE and RoHS compliant

23 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

L

IMITED

W

ARRANTY

Limited Hardware Warranty (through distributors & resellers)

FireFly Global hardware products purchased in the U.S. come with a 1-year limited hardware warranty. The warranty is extended through Firefly Global authorized representatives and resellers. If you have a warranty claim, please contact the store, distributor, or website through which the product was purchased.

What is covered by this limited hardware warranty?

This limited hardware warranty covers defects in materials and workmanship in your FireFly Global hardware products.

What is not covered by this limited hardware warranty?

This limited hardware warranty does not cover:

• Software, including the operating system and software added to or bundled with the FireFly Global hardware products

• Problems that result from:

• External causes such as accident, abuse, misuse, or problems with electrical power

• Servicing not authorized by FireFly Global

• Usage that is not in accordance with product instructions

• Failure to follow the product instructions

• Problems caused by using accessories, parts, or components not supplied by FireFly Global

• Products with missing or altered serial numbers

• Products for which FireFly Global or its distributors have not received payment

• Normal wear and tear

THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE

TO STATE (OR JURISDICTION TO JURISDICTION). FIREFLY GLOBAL'S RESPONSIBILITY FOR MALFUNCTIONS AND DEFECTS IN

HARDWARE IS LIMITED TO REPAIR AND REPLACEMENT AS SET FORTH IN THIS WARRANTY STATEMENT. ALL EXPRESS AND

IMPLIED WARRANTIES FOR THE PRODUCT, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES AND CONDITIONS

OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN TIME TO THE TERM OF THE LIMITED

WARRANTY PERIOD REFLECTED ON YOUR PACKING SLIP OR INVOICE. NO WARRANTIES, WHETHER EXPRESS OR IMPLIED,

WILL APPLY AFTER THE LIMITED WARRANTY PERIOD HAS EXPIRED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW

LONG AN IMPLIED WARRANTY LASTS, SO THIS LIMITATION MAY NOT APPLY TO YOU.

WE DO NOT ACCEPT LIABILITY BEYOND THE REMEDIES PROVIDED FOR IN THIS LIMITED HARDWARE WARRANTY OR FOR

CONSEQUENTIAL OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, ANY LIABILITY FOR THIRD-PARTY CLAIMS

AGAINST YOU FOR DAMAGES, FOR PRODUCTS NOT BEING AVAILABLE FOR USE, OR FOR LOST DATA OR LOST SOFTWARE. OUR

24 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

LIABILITY WILL BE NO MORE THAN THE AMOUNT YOU PAID FOR THE PRODUCT THAT IS THE SUBJECT OF A CLAIM. THIS IS

THE MAXIMUM AMOUNT FOR WHICH WE ARE RESPONSIBLE.

How long does this limited hardware warranty last?

The limited hardware warranty on all FireFly Global products begins on the date of the packing slip, invoice, or receipt. The warranty period is not extended if a warranted product or any parts are repaired or replaced. FireFly Global may change the availability of limited hardware warranties, at its discretion, but any changes will not be retroactive.

What do I do if I need warranty service?

Before the warranty expires, please contact the store, distributor, or website through which the product was purchased.

What will FireFly Global do?

FireFly Global or its authorized representative or reseller will repair any FireFly Global hardware products returned that prove to be defective in materials or workmanship. If FireFly Global or its authorized representativse are not able to repair the product, we will replace it with a comparable product that is new or refurbished.

When you contact our authorized representatives or resellers via phone or email, they will issue a Return Material Authorization

Number for you to include with your return. You must return the products in their original or equivalent packaging, prepay shipping charges, and insure the shipment or accept the risk if the product is lost or damaged in shipment. The repaired or replacement products will be returned to you. The reseller or authorized representative will pay to ship the repaired or replaced products to you if you use an address in the United States (excluding Puerto Rico and U.S. possessions and territories). Otherwise, the product will be shipped to you freight collect.

If it is determined that the problem is not covered under this warranty, you will be notified and informed of service alternatives that are available to you on a fee basis.

How will you fix my product?

We use new and refurbished parts made by various manufacturers in performing warranty repairs and in building replacement parts and systems. Refurbished parts and systems are parts or systems that have been returned to FireFly Global, some of which were never used by a customer. All parts and systems are inspected and tested for quality. Replacement parts and systems are covered for the remaining period of the limited hardware warranty for the product you bought. FireFly Global owns all parts removed from repaired products.

May I transfer the limited hardware warranty?

Limited hardware warranties are not transferable.

25 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

T

ROUBLESHOOTING

Frequently Asked Questions (FAQs):

Q1. What do I do if my Firefly Microscope and FireflyPro software suddenly stops working?

Answer: a) Shutdown the Firefly Microscope and disconnect the USB data cable from the computer. b) Close the FireflyPro software. c) Wait for one minute, reconnect the USB data cord to system and switch the Microscope on. d) Double-click the FireflyPro icon on desktop to launch the software application again.

Q2. When using the first version of Vista (not Vista SP1), there is a black visible region that randomly appears, what can I do to fix this?

Answer:

Please update Windows Vista through Microsoft update, or click Toolbar - "Set -" default” – “OK” to refresh the display.

Q3. What do I do when my computer is woken-up from standby or hibernation and FireflyPro software stops working?

Answer:

Please close and try restarting the software application again.

Q4. Why is there no image displayed on FireflyPro image windows?

Answer: a. Please verify whether the device is connected properly b. Please switch the Microscope device “OFF” and back to either “LED1” or “LED2”

Q5. The Microscope is connected to the PC, but why can it not be used?

Answer: a.

Make sure the FireflyPro software is installed completely and properly. b.

Please verify whether the device is connected properly c.

Make sure the compact receiver is connected to the PC’s USB port. d.

Please unplug the compact receiver and plug into the PC’s USB port again.

Q6. How do I uninstall the FireflyPro software?

Answer:

To uninstall, go to Start -> Settings -> Control Panel -> Programs and Features -> Uninstall

Q7. Why does the video stream appear like a mosaic and update slowly (or not smoothly)?

Answer: a. Too many software programs may be running simultaneously and overloading the CPU, or the physical memory has reached its saturation. Please close unnecessary programs. If video stream doesn’t improve, please reboot the system in order to release previously used memory.

26 User Manual for Wireless Firefly Microscope DE550 Version: 1.3 b. Check whether the system is infected by a virus. c. The PC may be too old to properly drive the video stream and does not meet the minimum standards set forth in the instructions. Please use faster system.

Q8. What to do if the FireflyPro software application crashes?

Answer:

If the system crashes, disconnect the USB data cable and switch off the Microscope. Re-boot the PC and, after system reboot, reconnect the Microscope, switch on and restart the FireflyPro application.

27 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

WIRELESS INTERFERENCE RECOMMENDATIONS

Last reviewed: January 27, 2011.

Many wireless products, such as cordless phones, home networks, Bluetooth devices, and baby monitors, share the 2.4-GigaHertz (GHz) radio frequency bands. As a result, these products are likely to interfere with each other. Interference might generate noisy images and degrade the video quality on the Wireless Firefly

Microscope.

Here's what you need to know to minimize interference:

Interference immunity from cordless phones

Most 2.4GHz cordless phones use frequency hopping spread spectrum (FHSS) technology that operates within the 2.4-GHz spectrum. FHSS hops from frequency-to-frequency across the entire 2.4GHz spectrum.

The wireless Firefly Microscope and 802.11 WiFi wireless networks, on the other hand, use direct sequence spread spectrum (DSSS), which transmits within only a part of the 2.4 GHz spectrum. Because FHSS jumps across the entire spectrum while DSSS stays in only one portion, a FHSS 2.4GHz product can cause interference with the Wireless Firefly Microscope.

Choose a cordless phone that uses the 5.8-GHz, 1.9-GHz, or 900-MHz band

These frequency bands are not as widely used as 2.4-GHz and, therefore, are less likely to cause or receive interference. If you want a multiple-handset-capable cordless phone with handset-conferencing capability, choose one that uses only the 5.8-GHz or 1.9 GHz band. By contrast, nearly all phones using 2.4-GHz digital spread spectrum (DSS) technology and those that allow handset conferencing may create interference in other products, some even while in standby mode. Be aware that some cordless phones labeled as 5.8-GHz actually use both the 5.8-GHz and 2.4-GHz bands. DSS phones labeled as "wireless network friendly" or

"802.11-friendly" are unlikely to interfere with wireless computer networks, but they may interfere with the Wireless

Firefly Microscope and other wireless devices. Keep the 2.4-GHz analog phones as far away from the area as possible.

Lower the antenna position of cordless phone

If relocating or replacing the phone is not an immediate option, operate the cordless phone with the antenna in the lowered position if possible. This will dampen the RF signal coming from the cordless phone and reduce the amount of interference.

Keep your distance

After above adjustment, try keeping the conflicting cordless phone as far away as possible, such as in different rooms.

Interference immunity from wireless networks

Like most wireless products, the wireless Firefly Microscope allows you to operate at 4 separate channels

(residing on frequency range index of 2414, 2432, 2450 or 2468±10 MHz).

28 User Manual for Wireless Firefly Microscope DE550 Version: 1.3

The 802.11 wireless networks use direct sequence spread spectrum (DSSS), which transmits within approximately one third of the 2.4 GHz spectrum, and it is possible to change the channels of 802.11 networks on a wireless router by entering the administration mode.

Change Access Point or Wireless Router channels

Normally the WiFi wireless network router or access point uses #6 as the default channel, which is located in the center of the 2.4-GHz spectrum. This can easily conflict with the wireless Firefly Microscope’s spectrum. Try changing the channel on the access point (i.e. 1, 6, and 11). Anecdotally, users have found they have the least interference on channel 11 while the wireless Firefly Microscope’s channels are set to 3 or 4.

Change the relative location of the Access Point

Maximize the distance between the wireless Microscope and WiFi devices.

Fine tune the position of the compact receiver

Try different angles on the compact receiver. A flat horizontal orientation or vertical orientation may produce better results.

Interference is an unfortunate byproduct of numerous wireless products today. While there are no guarantees the actions above will work, they may reduce interference to acceptable levels.