Installation Instructions

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W I R E L E S S, L L C

A subsidiary of ASSA Industries, LLC

K&A Wireless, LLC

Memorandum

To: Tri Luu – Ultratech, Inc

From: Kamil Agi – President-CEO K&A Wireless, LLC

CC: Steve Dayhoff – Federal Communications Commission

Date: 11/19/01

Re: FCC ID OPH-VBLAST2400

This memorandum is in response to correspondence reference number 21068 for 731 Confirmation number

EA101939 dated 26 October 2001.

Table 1 shows the available cameras in the firefighting market that are used by the fire departments.

Table 1. Table of available manufacturers of thermal imaging cameras used by fire departments

Cairns Advanced Technology, LLC www.cairnsiris.com

ISG Thermal Systems USA, Inc. www.isgfire.com

Mine Safety Appliances Corporation www.msanet.com

Bullard, Inc. www.bullard.com

FLIR Systems, Inc. www.fireflir.com

Scott Technologies, Inc. www.scottaviation.com

Infrared Components Corporation www.infraredcomponents.com

International Safety Instruments, Inc. www.intsafety.com

Fire Research Corporation www.fireresearch.com

In this group of manufacturers, we are currently targeting Cairns Advanced Technology, LLC and ISG Thermal

Systems USA, Inc. These two companies are currently key customers of K&A Wireless, and we would like to

provide them the analog system referenced in this response. We would like the option to market the system to

other camera manufacturers as well in the firefighting market. For any new integration, we will work closely with

the manufacturer to insure that the RF exposure conditions are met. I have also provided correspondence with the

ISG Thermal Systems USA and Cairns Advanced Technology as reference.

Summary of content (6 pages)

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K&A W I R E L E S S, A subsidiary of ASSA Industries, LLC K&A Wireless, LLC Memorandum To: Tri Luu – Ultratech, Inc From: Kamil Agi – President-CEO K&A Wireless, LLC CC: Steve Dayhoff – Federal Communications Commission Date: 11/19/01 Re: FCC ID OPH-VBLAST2400 This memorandum is in response to correspondence reference number 21068 for 731 Confirmation number EA101939 dated 26 October 2001. Table 1 shows the available cameras in the firefighting market that are used by the fire departments.
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Cairns Advanced Technology Figure 1 shows the camera in the typical configuration in the fireman’s hands. We believe that this is the worse case scenario for the exposure criterion. Figure 2 is the outside dimensions of the camera with the antenna located under a radome. The red button is an on/off switch. This location was chosen for mechanical stability and reliability in a fire scene. 13.5cm 18cm 33cm Figure 1. Indicates the outer dimensions of the camera. The antenna is located 21.
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Figure 2. A photo indicating the location of the integrated transmitter. Note that the antenna is placed 22 cm away from the edge of the edge of the camera.
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of the camera is 33 cm and the width across the antenna is 18 cm and 13.5 cm across the LCD. As shown the antenna is placed inside a radome with the edge of the radome approximately 21.5 cm away from the edge of the camera near the LCD. Keep in mind that the facemask of the firefighter will add an additional 3cm (minimum) distance to the actual body/head of the firefighter. Note that the radome for this camera system will be made of Ultem®, which has a dielectric constant of approximately 3 (www.cuflon.
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ISG Thermal Systems USA, Inc. The worse case exposure condition of the thermal imager currently available at ISG is shown in Figure 4. In this application, the firefighter is surveying a fire scene prior to entering a burning building. His gear is on, but his face shield is not down. Although this is the worse case configuration from an exposure standpoint, it is not considered normal use since typically the transmitter will be off. However, there is a possibility that it may be on. Figure 3.
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in Figure 6 (a). The antenna will be located on the tip of the camera furthest away from the LCD. An internal photograph of the antenna is shown in Figure 6(b). (a) Antenna location (b) Figure 5. (a.). Location of the internal antenna shown from the outside of the case. (b). Location of the internal antenna with the camera electronics removed. The distance from the antenna to the user exceeds the minimum 20 cm necessary for mobile devices.