6

FCC ID: CKENRD-545

Test Report

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FCCID_47069

                                                               PCC ID:       CKENRD—545


INTRODUCTION

        An    NRD—545           programmable scanning receiver        was    tested      to
determine compliance with FCC Part 15 certification limits                          under
provisions of Para.               15.107 and 15.109.     Measurements were made at
18 frequencies corresponding to successive frequency band switch—
ing ranges (See Exhibit 6).

     The NRD—545   is an ACline operated programmable scanning
receiver which operates under the control of an internal computer
or  external PC.  The receiver is supplied with an                      external        UHF
and N style connectors.

        Overall frequency range is <0.l1 to 2000 MHz.

        (A   Declaration            of Conformity a Class B        persona      computer
peripheral has been completed.                   See Exhibit 7.)


TELEPHONE DISCLOSURE AND DISPUTE RESOLUTION ACT COMPLIANCE

        It   is our professional           judgement that this device           complies
with TDDRA Pub.             L 102—556.

        1)   Frequencies           in the 824—849   and 869—894 MHz     bands      cannot
be entered into the channelization input by either front panel or
external      PC; 2)            There are no provisions for        readily   modifying
the  circuitry; such as clipping leads, adding  diodes/resistors,
replacing a plug—in chip, programming a chip using special access
codes, or any port to an external device such as a computer.

        If   an     attempt         is made to enter a frequenc         in   the     824—
849/869—894 MHz range, the entry is rejected.

PROCEDURE — SPURIOUS RADIATION

        The procedures of ANSI            63.4   — 1992 were followed.

      Spurious  radiations  were measured at 3 meters  on  an  FCC
accepted open—field radiation test site.   The receiver was placed
on  a   rotatable  test  stand  80  cm  above  the  ground  plane.

     The  search  antenna(s) were Emco tuned dipoles  or  Polarad
horn antennae mounted on a 4—meter wooden mast.  During the meas—
urements,         the search antenna height and polarization was                   varied
to     maximize signal pickup, as was orientation of the system                         and
cables.

     A  Tektronix 494P spectrum analyzer was used as  the  signal
measuring  device.   The spectrum analyzer is  a  peak—responding
instrument.         A       100 kHz résolution bandwidth was used,              below     1
GHZ,    and 1 MH2       >   1   GHz.


                                                          FCC ID:      CKENRD—545


PROCEDURE — SPURIOUS RADIATION           (Continued)

     Verification of spurious signal was accomplished by remotely
turning  the  receiver on and off.   The ac line supply was  used
throughout the tests.

        Data     were recorded on all signals 20 dB or more          above     the
FCC     minimum reporting limits for 15.109 unintentional              radiators
from 30—2000 MHz.

        Measurement        data were computed incorporating     both     antenna
and coaxial line correction factors.            System accuracy is estimat—
ed at £3dB.


DATA — RADIATED SPURIOUS

        Data are compiled in Table 1.

     Radiated spurious data and FCC limits are in microvolts                   per
meter at 3 meters.

     The  test  sample met FCC criteria            for    receiver     radiation
limits under Paragraph 15.109.


PROCEDURE — AC LINE CONDUCTED SPURIOUS

     The  ac  line  conducted spurious were  measured  using  the
procedures of ANSI 63.4 — 1992.  A HP 8640B signal generator  was
used as a signal source and an Advantest R3361A spectrum analyzer
in CISPR quasi—peak mode as the detector.

        The     receiver    was   tuned to receiving     frequencies     at    the
lower,        middle and upper limits.     At each frequency an        input    of
100 uV was applied while the left and right ports of the IEEE—213
line  impedance  stabilization           network were    observed      with    the
spectrum analyzer.

        Dbata to determine compliance with Part 15, Class "B" comput—
ing     device limits were taken with a IEEE—STD—213   LISN modified
for     the 50 microhenry inductances specified for.   Since the  250
microvolt limit for a Class "B" computing device is more restric—
tive than 15.63,       the limit of 15.107 was applied.

        A 9 kHz resolution bandwidth was used with a 120 second scan
time.


                                                                   FCC   LD:    CKENKD—545



                                       TABLE 1

                          RADIATED SPURIOUS EMISSIONS
                             Measured at 3 meters
                            PART   15(B)    PARA.    15.109

Frequency      Frequency
 To wWhich       of          Meter         Antenna      Fiela‘
  Tuned       Emission      Reading        Factor      Intensity          FCC Limit    dB to
  (MHz)         (MHz)         (dBm)         (aB)       @                 @             Linit
  30.100       836.201        ~98 .0        20.9              31               200     —16
  69.000       875.100        —98 .4        23.0              38               200     —14
 107.900       914.000        —99.6         23 .2             34               200     —15

 108 .900      915.000        —98 .0        23.2              41               200     —14
 194 .000     1000.100      ~100 .4         24 .4             36%              500     —23
 194.000      2000.201       —106.4         28.3              28*              500     —25
 279.900      1086.001      —104.4          24.6              23*              500     —27

 281.000      1087.101       ~92.4          24 .6             91               500     —15
 423.700      1229.800       —90 .4         25 .0            120               500    —12
 423.700      2459.600       —97.6          29 .5             88               500    —15
 567.000      1372.100       —89 .2         25. 4            145               500    —11
 567.000      2744.200       —92.4          30 .2            174               500     —9

 568.000       836.702       —99.6         20 .9              26               200    —18
 823.900      1092.600       —98 .0        24 .6              48 *             500    —20
 823.900      2185.200       —96.8         28 .8              89               500    —15
1104.000      1372.700       —92.8         25 .4              96               500    —14
1104.000      2745.400       —92.4         30. 2             174               500    —9

1105.000       836.300       —98 .7        20 .9              29               200    —17
1105.000      1672.602       —92.8         26 .6             110               500    —13
1172.000       903. 300      —926.8        23.3               47               200    —13
1239.000       970 .300      —99 .6        22.6               32%              500    —24

1241.000       972.300       ~97.2         22.5               41*              500    —22
1241.000      1944.600      —103.2         28 .0              39*              500    —22
1620.000      1351.300       —88 .0        25.3              164               500    —10
1620.000      2702.600       —93.6         30 .1             150               500    —11
1998 .000     1191.900       —92.8         24 .9              90               500    —15
1998.000      2383.800       —94.0         29.3              130               500    —~12
L.O. HIx3      2386.199       —99.6          29.3              68               500    ~17
L.O. LOx2       516.000      —103.2          18 .6             13%              200    ~24
L.O.   LOx3     774.000      ~102.8          20 .9             18#              200    ~21

 Note i:      uV/m = Log‘lggglm
              dBu = dBm + antenna factor +             107


 *Reference data,       20 dB or more below FCC linmit.

                                                     RADIATED SPURIOUS EMISSIONS
                                                     FCC ID: CKENRD—545

                                                     TABLE 1


                                                    FCC ID:    CKENRD—545


DATA — AC LINE CONDUCTED

     All  ac  line  conducted spurious from    .45 to     30   MHz    were
within the FCC limits of Paragraph 15.107.

     Plots  of both left and right output ports of the  LISN  are
shown in Figures 1 and 2. The scale of the plots are 10  @B/divi—
sion   vertical referenced to 60 dBuV (top of graticule) and          0.45
MHz   left, 15.22 MHz center,   and 30 MHz right.     The 250 uV     limit
(48 dBuv) is shown in green.


                                                              FCC ID:             CKENRD—545




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                                                    AC LINE CONDUCTED SPURIOUS
                                                    FCC ID: CKENRD—545

                                                    Figure 1         (Left LISN Port)


                                                                      FCC ID:    CKENRD—545




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                                                             AC LINE CONDUCTED SPURIOUS
                                                             FCC ID: CKENRD—545

                                                              Figure 2   (Right LISN Port)



Document Created: 2001-06-11 19:24:47
Document Modified: 2001-06-11 19:24:47

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