Exh E Test Report

FCC ID: KUWNBPCS-9002W

Test Report

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FCCID_48900

ENGINEERING TEST REPORT NO. 21851

TABLE OF CONTENTS

PARAGRAPH DESCRIPTION OF CONTENTS PAGE NO.

1.0 INTRODUCTION 1
1.1 DESCRIPTION OF TEST ITEM 1
1.2 PURPOSE 1
1.3 DEVIATIONS, ADDITIONS AND EXCLUSIONS 2
1.4 APPLICABLE DOCUMENTS 2
1.5 SUBCONTRACTOR IDENTIFICATION 2

2.0 TEST ITEM SETUP AND OPERATION 2
2.1 SETUP 2
2.2 RF OUTPUT 2
2.3 GAIN SETTINGS 2
2.4 FREQUENCY SELECTION 3
2.5 MODULATION 3

3.0 TEST EQUIPMENT 3

4.0 REQUIREMENTS, PROCEDURES AND RESULTS 3
4.1 POWER OUTPUT AND GAIN MEASUREMENTS 3
4.1.1 REQUIREMENTS 3
4.1.2 PROCEDURES 4
4.1.3 RESULTS 5
4.2 OCCUPIED BANDWIDTH MEASUREMENTS 6
4.2.1 REQUIREMENTS 6
4.2.2 PROCEDURES 7
4.2.3 RESULTS 8
4.3 SPURIOUS EMISSIONS AND INTERMODULATION PRODUCTS AT
ANTENNA TERMINAL 8
4.3.1 REQUIREMENTS 8
4.3.2 PROCEDURES 9
4.3.3 RESULTS 10
4.4 FIELD STRENGTH OF SPURIOUS EMISSIONS 10
4.4.1 PRELIMINARY RADIATED MEASUREMENTS 10
4.4.1.1 REQUIREMENTS 10
4.4.1.2 PROCEDURES 10
4.4.1.3 RESULTS 11
4.4.2 FINAL RADIATED EMISSIONS 11
4.4.2.1 REQUIREMENTS 11
4.4.2.2 PROCEDURES 12
4.4.2.3 RESULTS OF OPEN FIELD RADIATED TEST 13
4.5 FREQUENCY STABILITY 13
4.5.1 REQUIREMENTS 13
4.5.2 PROCEDURES 13
4.5.3 RESULTS OF TESTS 14

5.0 CONCLUSION 15

6.0 CERTIFICATION 15

7.0 ENDORSEMENT DISCLAIMER 15

TABLE I - EQUIPMENT LIST 16

ENGINEERING TEST REPORT NO. 21851

2.4 FREQUENCY SELECTION: For the RF output, occupied bandwidth,

radiated emissions measurements, and frequency stability test the

frequency in the center of the band was selected. For the Forward

channels, 929.5MHz, 930.5MHz, and 940.0MHz were used, and for the

Reverse channel, 900.0MHz was used.

For the intermodulation and spurious emissions measurements, three

inband frequencies were selected for the Forward channels, two inband

frequencies were selected for the Reverse channels. For the Forward

path, the frequencies were 929.5MHz, 930.5MHz, and 940.0MHz. For the

Reverse path, the frequencies were 900.0MHz and 900.05MHz.

2.5 MODULATION: The test signal was modulated with a typical
modulation for 900MHz digital paging services. The external modulation

function of Rohde & Schwarz M/N SMHU Signal Generator was used in

conjunction with a LeCroy LW420 waveform generator. The digital

modulation was generated with the aid of Rohde & Schwarz IQSIM ver 4.04

software package installed on a PC. The software generates the digital

modulation protocols per the industry standards.

3.0 TEST EQUIPMENT:
A list of the test equipment used can be found on Table I. All

equipment was calibrated per the instruction manuals supplied by the

manufacturer.

4.0 REQUIREMENTS, PROCEDURES AND RESULTS:

4.1 POWER OUTPUT AND GAIN MEASUREMENTS:

4.1.1 REQUIREMENTS:
In accordance with paragraph 22.535(f), the effective radiated

power (ERP) of signal boosters must not exceed 5 watts ERP under any

normal operating condition.

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ENGINEERING TEST REPORT NO. 21851

(f) The gain was calculated by subtracting the input level from

the output level and recorded.

(g) Steps (a) through (f) were repeated with the input signal set

to 929.5MHz and 930.5MHz.

(h) The input and output were reversed to measure the Reverse

direction. Steps (b) through (f) were repeated with the input signal set

to 900.0MHz.

(i) The input signal was switched to the tracking generator. The

frequency versus gain was plotted with 1dB/div resolution for the

passband response curve. The spectrum analyzer bandwidth was reduced to

increase resolution. Since the amplifier is channelized, a family of

gain curves was created for each band. The channel frequency was

incremented in 500kHz steps starting with fisrt frequency in the band.

(j) The frequency versus gain curve was plotted with 10dB/div

resolution to measure the 20 dB bandwidth of the amplifier.

(k) The frequency versus gain curve was expanded to show the out-

of-band gain response. The gain was plotted for the midband frequency to

at least +/- 250% of the 20 dB bandwidth of the amplifier.

4.1.3 RESULTS: The input power, output power and calculated
gain are presented on data page 101. The response curve plots are

included as data pages 102 through 110. The test data shows that the

amplifier is capable of operating at its rated output power. All other

tests were performed at this power level.

Power output complies with the FCC requirements. The maximum

Forward power output is rated at 1 watt (30dBm) composite which is below

the 100 watt maximum limit for mobile station. The maximum Reverse power

output is rated at 500 milliwatts (27dBm) composite which is also below

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ENGINEERING TEST REPORT NO. 21851

accordance with the following schedule:

(1) On any frequency outside the authorized bandwidth by a
displacement frequency (fd in kHz) of up to and including
40kHz: at least 116 log ((fd+10)/6.1) or 50 + 10 log (P) dB or
70 dB, whichever is the lesser attenuation;

(2) On any frequency outside the authorized bandwidth by a
displacement frequency (fd in kHz) of more than 40kHz: at
least 43 + 10 log (P) dB or 80 dB, whichever is the lesser
attenuation;

In accordance with Paragraph 90.209(b)(5), the maximum authorized

bandwidth shall be 20kHz for operations in the bands of 929MHz to

930MHz.

In accordance with paragraph 90.210, Mask G was selected since it

represents the worse case of Mask B and G. For Mask G, the peak power of

any emission shall be attenuated below the unmodulated carrier power (P)

in accordance with the following schedule:

(1) On any frequency removed from the center of the authorized
bandwidth by a displacement frequency of more than 5.0 kHz,
but no more than 10.0 kHz: At least 83 log (f/5) dB;

(2) On any frequency removed from the center of the authorized
bandwidth by a displacement frequency of more than 10.0 kHz,
but no more than 250 percent of the authorized bandwidth: At
least 116 log (f/6.1) dB, or 50 + 10 log (P) dB, or 70 dB,
whichever is the lesser attenuation;

(3) On any frequency removed from the center of the authorized
bandwidth by a displacement frequency by more than 250 percent
of the authorized bandwidth: At least 43 + 10 log (P) dB.

4.2.2 PROCEDURES:
(a) The test item was setup to measure the Forward direction. The

gain was set to its maximum level. The input signal was set to 929.5MHz.

The input signal level was adjusted for the rated output.

(b) With the spectrum analyzer bandwidth set to 300 Hz and the span

set to 50 kHz. The output signal was measured and plotted.

(c) The input signal was modulated. The measurement was repeated.

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ENGINEERING TEST REPORT NO. 21851

(d) The analyzer was connected to the output of the signal

generator to measure the input signal.

(e) Steps (b) through (d) were repeated with the input signal set

to 930.5MHz and 940.0MHz.

(e) Steps (b) through (d) were repeated for the test item setup in

the Reverse direction. The input signal set to 900.0MHz.

4.2.3 RESULTS: The plots of the occupied bandwidth measured
with the modulation of the carrier are presented on data pages 111

through 122.

The limits, shown on the plots, are referenced to the power

measured from the unmodulated carrier.

As can be seen from the data, the test item output met the occupied

bandwidth requirements with the typical modulated carrier. The sideband

emissions measured at the test item output were similar to the sideband

emissions measured from the input signals.
4.3 SPURIOUS EMISSIONS AND INTERMODULATION PRODUCTS AT ANTENNA

TERMINAL:

4.3.1 REQUIREMENTS: This test determines whether the test
item produces excessive spurious emissions or intermodulation products.

In accordance with FCC paragraphs 22.359, 24.133, and 90.210 and IC

6.3, 6.4 and 6.5, the spurious emissions and intermodulation products

shall be attenuated below the unmodulated carrier power (P) by at least

43 + 10 log(P)dB. For the Forward output power of 1 watt composite

(30dBm), the spurious emissions shall be attenuated by a minimum of 43

dB. For the Reverse output power of 500 milliwatts composite (27dBm),

the spurious emissions shall be attenuated by a minimum of 40 dB. These

requirement translates to a limit of -13dBm. The peak power of the

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ENGINEERING TEST REPORT NO. 21851

emissions shall be measured at the antenna terminal from 30MHz up to the

10th harmonic of the fundamental frequency.

4.3.2 PROCEDURES:
In general, this test will measure spurious emissions and

intermodulation products when three inband signals are introduced at the

input.

(a) The test item was setup to measure in the Forward direction.

The gain was set to its maximum level.

(b) Three frequencies, 929.5MHz, 930.5MHz, and 940.0MHz were

combined and input to the test item. The level of each signal was

adjusted so that each signal was at the composite rated output level.

(c) With the BW of the analyzer set at 1kHz, the passband signal

levels were measured and plotted.

(d) The BW was increased to 100 kHz. The out-of-band signal levels

were measured and plotted over the frequency range from 30MHz to 1GHz.

(e) The measurement BW was increased to 1 MHz. The emissions were

measured over the frequency range from 1 to 10 GHz.

(f) With the analyzer connected to the input signal, the input to

the test item was measured and plotted using the same BW used for the

output measurements.

(g) Steps (b) through (f) were repeated with the input signal

modulated.

(i) Steps (b) through (h) were repeated with the test item set to

measure the Reverse direction. The two input frequencies used were

900.0MHz and 900.05MHz.

4.3.3 RESULTS: The plots of the intermodulation and antenna
conducted output measurements are presented on data pages 123 through

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ENGINEERING TEST REPORT NO. 21851

158. The limit lines have been adjusted to include the cable loss

factors. As can be seen from the data, the test item did not produce

spurious emissions or intermodulation products in excess of the -13 dBm

limit when operated at the rated output power.
4.4 FIELD STRENGTH OF SPURIOUS EMISSIONS:

4.4.1 PRELIMINARY RADIATED MEASUREMENTS:

4.4.1.1 REQUIREMENTS: Because emission levels in the
open field may be masked by interference from sources other than the

test item, preliminary radiated measurements are first performed in the

low ambient environment of a shielded enclosure. The radiated emissions

from the test item were first measured using peak detection. This data

was then automatically plotted. The frequencies with significant

emission levels were measured in the open field.

4.4.1.2 PROCEDURES: All preliminary tests were

performed in a 32ft. x 20ft. x 18ft. hybrid ferrite-tile/anechoic

absorber lined test chamber. The walls and ceiling of the shielded

chamber are lined with ferrite tiles. Anechoic absorber material is

installed over the ferrite tile. The floor of the chamber is used as the

ground plane. The chamber complies with ANSI C63.4 1992 for site

attenuation.

The shielded enclosure prevents emissions from other sources, such

as radio and TV stations from interfering with the measurements. All

powerlines and signal lines entering the enclosure pass through filters

on the enclosure wall. The powerline filters prevent extraneous signals

from entering the enclosure on these leads.

(a) The preliminary measurements were performed with the test item

operating with an input signal at 900.0MHz, with CW modulation and

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ENGINEERING TEST REPORT NO. 21851

maximum gain. The broadband measuring antenna was positioned at a 3

meter distance from the test item. The frequency range from 30MHz to

10GHz was investigated. The readings were taken with a peak detector

function.

(b) Step (a) was repeated separately with the input signals at

929.5MHz, 930.5MHz and 940.0MHz.

(c) Steps (a) and (b) were repeated with the input signals

modulated.

4.4.1.3 RESULTS: The preliminary plots are presented on
data pages 159 through 174. Factors for the antenna and distance

correction were added to the data before it was plotted.

This data is only presented for a reference, and is not used as

official data. All significant radiated emissions were subsequently

measured at an open field test site. From this data, the test mode and

frequency range for the open field measurements was selected.

4.4.2 FINAL RADIATED EMISSIONS:

4.4.2.1 REQUIREMENTS: In accordance with FCC

Paragraphs 22.354, 24.133, and 90.210, the spurious on any frequency

removed from the assigned frequency by more than 250 percent of the

authorized bandwidth, the emissions shall be attenuated below the

transmitter power (P) by at least 43 + 10 log(P)dB. This requirement

translates to a limit of -13dBm. The emissions shall be measured from

30MHz up to the 10th harmonic of the fundamental frequency.

4.4.2.2 PROCEDURES: Final radiated emissions were

performed in a 32ft. x 20ft. x 18ft. hybrid ferrite-tile/anechoic

absorber lined test chamber. The walls and ceiling of the shielded

chamber are lined with ferrite tiles. Anechoic absorber material is

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ENGINEERING TEST REPORT NO. 21851

installed over the ferrite tile. The floor of the chamber is used as the

ground plane. The chamber complies with ANSI C63.4 1992 for site

attenuation.

(a) The test item was placed on a 0.8 meter high non-conductive

stand at a 3 meter test distance from the receive antenna.

(b) The antenna output was terminated in 50 ohms.

(c) Detected emissions were maximized at each frequency by

rotating the test item and adjusting the receive antenna height and

polarization. The maximum meter reading was recorded.

(d) Measurement BW was 100kHz below 1000 MHz and 1MHz above 1000

MHz. Peak reading were recorded. No averaging methods or corrections

were applied.

(e) The equivalent power into a dipole antenna was calculated from

the field intensity levels measured at 3 meters using the equation shown

below:

Pg = E24πd2/120π = E2d2/30

whereP = power in watts
g = arithmetic gain of transmitting antenna over
isotropic radiator.
E = maximum field strength in volts/meter
d = measurement distance in meter

Using a dipole gain of 1.67 or 2.2 dB and a test distance of 3

meters, this equation reduces to:

P(dBm) = E(dBuV/m) - 97.2dB

4.4.2.3 RESULTS OF OPEN FIELD RADIATED TEST: The final
open field radiated levels are presented on data pages 175 through 182.

The radiated emissions were measured through the 10th harmonic. Ambient

level were recorded if the harmonic signals were not detected above the

ambient.

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ENGINEERING TEST REPORT NO. 21851

exceed those specified in the test specification.

The data presented in this test report pertains to the test item at

the test date. Any electrical or mechanical modification made to the

test item subsequent to the specified test date will serve to invalidate

the data and void this certification.

This report must not be used to claim product endorsement by NVLAP

or any agency of the US Government.

7.0 ENDORSEMENT DISCLAIMER:
This report must not be used to claim product endorsement by NVLAP

or any agency of the US Government.

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Document Created: 1999-07-19 11:03:32
Document Modified: 1999-07-19 11:03:32

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