Xetawave 93829283-MSD9 Users Manual

Xetawave

MSD9

Spread Spectrum Wireless Data Transceiver

Licensed Spectrum Wireless Data Transceiver

User Manual

Installation Guide

Version 0.7

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Warranty:

Xetawave LLC warrants your Xetawave wireless data transceiver against defects in materials and
manufacturing for a period of two years from the date of purchase. In the event of a product failure due
to materials or workmanship, Xetawave will, at its discretion, repair or replace the product.

In no event will Xetawave LLC, its suppliers or its licensors, be liable for any damages arising from the
use of or the inability to use this product. This includes business interruption, loss of business
information, or other loss which may arise from the use of this product. Xetawave LLC transceivers
should not be used in situations where failure to transmit or receive data could result in damage of any
kind to the user or any other party, including but not limited to personal injury, death, or loss of
property. Xetawave LLC accepts no responsibility for damages of any kind resulting from delays or
errors in data transmitted or received using the Xetawave transceiver, or for the failure of such
transceiver to transmit or receive such data.

Warranty policy may not apply:

1) If product repair, adjustments, or parts replacements is required due to accident, neglect or

unusual physical, electrical or electromagnetic stress.

2) If product is used outside of Xetawave specifications.

3) If product has been modified, repaired or altered by Customer unless Xetawave specifically

authorized such alterations in each instance in writing.

The warranty period begins from the date of shipment and is defined per the standard warranty policy
stated above.

Information in this document is subject to change without notice. The information contained in this
document is proprietary and confidential to Xetawave LLC. This manual is for use by purchasers and
other authorized users of the Xetawave wireless data transceiver only.

No part of this document may be reproduced or transmitted in any form or by any means, electronic or
mechanical, or for any purpose without the express written permission of Xetawave LLC.

This product is licensed by the United States. Diversion contrary to U.S. law is prohibited. Shipment or
re-export of this product outside of the United States may require authorization by the U.S. Bureau of
Export Administration. Please contact Xetawave LLC for assistance and further information.

UL Notification

This product has not undergone UL certification to date.

FCC Notifications

This device complies with parts 15 and 101 of the FCC rules. Operation is subject to the following two
conditions: 1) This device may not cause harmful interference and 2) this device must accept any
interference received, including interference that may cause undesired operation. This device must be

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operated as supplied by Xetawave LLC. Any changes or modifications made to the device without the
express written approval of Xetwave LLC may void the user’s authority to operate the device.

Caution: The model number MSD9 has a maximum transmitted output power of 5000mW when used
in the 928-960MHz band and 1000mW when used in the 902-928MHz band. It is recommended that the
transmit antenna be kept at least 102.5* cm away from nearby persons to satisfy FCC RF requirements.
Additional details may be found in the “RF Exposure Calculations” at the end of this section.

This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:

1) Reorient or relocate the receiving antenna.

2) Increase the separation between the equipment and the receiver.

3) Connect the equipment to an outlet on a circuit different from that to which the receiver is

connected.

4) Consult the dealer or an experienced radio/TV technician for help.

Note: Whenever any Xetawave LLC module is placed inside an enclosure, a label must be placed on the
outside of that enclosure which includes the module’s FCC ID.

FCC Exposure Compliance

It is the responsibility of the user to guarantee compliance with the FCC MPE regulations when
operating this device in a way other than described here. The installer of this equipment must ensure
the antenna is located or pointed such that it does not emit an RF field in excess guidelines as posted in
the Canadian Safety Code 6 of Health Canada, Bulletin 65 of the Federal Communications Commission,
or the Council of European Union recommendation of 12 July 1999 as appropriate.

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The Xetawave MSD9 uses a low power radio frequency transmitter. The concentrated energy from an
antenna may pose a health hazard. People should not be in front of the antenna when the transmitter
is operating.

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RF Exposure Calculations: FCC ID PEJ-93829283-MSD9

The MPE (Maximum Permissible Exposure) distance was calculated based on the limits for a General
Population/Uncontrolled Exposure, 900 MHz frequency band.¹ It was calculated for the worst case
scenario – a 100% transmit duty cycle.

For an isotropic radiator, the surface area of a sphere can be used to determine the area over which the
transceiver’s energy is radiated. Surface Area Of A Sphere = 4 * π * radius²

In the case where there is an antenna gain, the worst case energy density is increased by the antenna
gain factor. In this case, the exposure level for an uncontrolled environment can be calculated as
follows:

MPE Distance = (Output Power * Duty Cycle Factor * 10 * (Antenna Gain / 10)) / (4 * π * Exposure

1/2 

Limit))

Where: Output Power = 5000mW
Duty Cycle Factor = 1 (worst case scenario when transmitter’s duty cycle is 100%),
Antenna Gain = 6 dBi.
Exposure Limit = 0.6 mW/cm2 (from the § 1.1310, Table 1).

After applying all of the numbers listed above, we have:
MPE Distance = (( 5000mW * 1 * 3.98) / (4 * 3.14 * 0.6))

Where Output Power = 5000mW
Duty Cycle Factor = 1 (worst case scenario when transmitter’s duty cycle is 100%),
Antenna Gain = 12 dBi.
Exposure Limit = 0.6 mW/cm2 (from the § 1.1310, Table 1).

After applying all of the numbers listed above, we have:
MPE Distance = (( 5000mW * 1 * 15.85) / (4 * 3.14 * 0.6))

3

1/2

= 51.4 cm.

3

1/2

= 102.5 cm.

WARNING

In order to comply with the FCC adopted RF exposure requirements, this transmitter system will be
installed by the manufacturer’s reseller professional. Installation of all antennas must be performed in a
manner that will provide at least the MPE Distance from the front radiated aperture, to any user or
member of the public.

1

FCC Rules and Regulations, 47CFR § 1.1310, Table 1, Limits for General Population/Uncontrolled Exposure.

2

FCC Rules and Regulations, 47CFR § 15.247(b)(2).

3

FCC Rules and Regulations, 47CFR § 1.1310, Table 1, Limits for General Population/Uncontrolled Exposure.

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RF Exposure Calculations: FCC ID PEJ-93829283-MSD9

The MPE (Maximum Permissible Exposure) distance was calculated based on the limits for a General
Population/Uncontrolled Exposure, 900 MHz frequency band.¹ It was calculated for the worst case
scenario – a 100% transmit duty cycle.

For an isotropic radiator, the surface area of a sphere can be used to determine the area over which the
transceiver’s energy is radiated. Surface Area Of A Sphere = 4 * π * radius²

In the case where there is an antenna gain, the worst case energy density is increased by the antenna
gain factor. In this case, the exposure level for an uncontrolled environment can be calculated as
follows:

MPE Distance = (Output Power * Duty Cycle Factor * 10 * (Antenna Gain / 10)) / (4 * π * Exposure

1/2 

Limit))

Where: Output Power = 1000mW
Duty Cycle Factor = 1 (worst case scenario when transmitter’s duty cycle is 100%),
Antenna Gain = 6 dBi.
Exposure Limit = 0.6 mW/cm2 (from the § 1.1310, Table 1).

After applying all of the numbers listed above, we have:
MPE Distance = (( 1000mW * 1 * 3.98) / (4 * 3.14 * 0.6))

Where Output Power = 1000mW
Duty Cycle Factor = 1 (worst case scenario when transmitter’s duty cycle is 100%),
Antenna Gain = 12 dBi.
Exposure Limit = 0.6 mW/cm2 (from the § 1.1310, Table 1).

After applying all of the numbers listed above, we have:
MPE Distance = (( 1000mW * 1 * 15.85) / (4 * 3.14 * 0.6))

3

1/2

= 23.0 cm.

3

1/2

= 45.8 cm.

WARNING

In order to comply with the FCC adopted RF exposure requirements, this transmitter system will be

installed by the manufacturer’s reseller professional. Installation of all antennas must be performed in a

manner that will provide at least the MPE Distance from the front radiated aperture, to any user or
member of the public.

1

FCC Rules and Regulations, 47CFR § 1.1310, Table 1, Limits for General Population/Uncontrolled Exposure.

2

FCC Rules and Regulations, 47CFR § 15.247(b)(2).

3

FCC Rules and Regulations, 47CFR § 1.1310, Table 1, Limits for General Population/Uncontrolled Exposure.

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Contents

MSD9 Introduction ........................................................................................................................................ 8

MSD9 Installation .......................................................................................................................................... 9

Point-to-Point Network ............................................................................................................................... 11

Setting up the MSD9 using Hyperterminal ................................................................................................. 11

Serial Port Configuration ............................................................................................................................. 14

RF and Hopping Configuration .................................................................................................................... 16

Bit Rate and Modulation Configuration ...................................................................................................... 20

Network Configuration ............................................................................................................................... 22

Utilities ........................................................................................................................................................ 24

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MSD9 Introduction

The MSD (Mini Software Defined) Radio family is a small form-factor data radio designed for
transmitting low to moderate speed data across distances of up to 100 miles. Thus, this radio family has
a much longer range than WiFi or other short distance radios, but at a lower data rate capacity. The
radio also has several unique features including the ability to operate on two different bands: a wide
bandwidth unlicensed band and a narrow bandwidth licensed band which permits both higher data
rates when available, as well as guaranteed delivery of data of lower data rate requirements. The radio
can seamlessly switch between the high data rate mode and the guaranteed delivery licensed mode. In
fact, since the radio is software defined, as changing environmental conditions can cause variations in
performance, the radio will automatically adjust its operating parameters to maximize performance.
Thus, if the signal quality degrades, instead of stopping all transmissions, the radio will reduce data
rates, change modulation methods, increase power levels, change frequencies, or enact other
modifications to maintain the best data link possible given the conditions. The design of the radio also
includes a physically small size, low weight and very low power consumption while maintaining a robust
design over large temperature extremes and other environmental parameters.

MSD9

The MSD9 is the 900MHz version of the MSD family. The two radio bands used are the ISM band from
902-928MHz which is unlicensed and allows for a transmission rate of 3.5 Mbit/sec and the licensed
band from 928-960MHz which, depending upon the license obtained can permit operation in a 50 kHz,
25 kHz or other bandwidth channel. Thus the radio is effectively two radios in one: one for high-speed,
wide-bandwidth unlicensed operation and one for low-speed narrow-bandwidth licensed operation.
The operating mode and parameters are completely controlled by software and can be modified
without direct contact with the radio. In addition to the flexible operating bands, the radio also has a
high power design of up to 5Watt transmit power which allows for the 1W FCC ISM band approved
operation as well as the higher output power possible in the MAS band.

The MSD9 includes standard modulation methods such as GMSK, 2-level FSK, 4-level FSK, 8-level FSK as
well as 2-level, 4-level and 8-level PSK and 16-QAM. Because the MSD series radios have a software
defined modulation and detection system, additional modulation methods may be added in the field
allowing the radio to benefit from future advances in the industry.

The OEM board has two connectors: one MMCX for the RF signal and one 24-pin header for the user
data interface and power. The user data interface connector includes the 7.5V power for the radio, one
standard speed diagnostics/control serial interface of up to 921kbps, one high-speed data serial
interface with hardware flow control and several user-definable digital signals.

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