TEST REPORT INCLUDING TABLE OF CONTENTS PAGE

FCC ID: MKDAP99

Test Report

Download: PDF
FCCID_30824

                          TABLE OF CONTENTS LIST

APPLICANT: ADI COMMUNICATIONS CORP.

FCC ID:      MKDAP99

TEST REPORT:

     PAGE 1......COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR.
     PAGE 2......TECHNICAL DESCRIPTION CONTINUED
     PAGE 3......RF POWER OUTPUT & MODULATION CHARACTERISTICS
     PAGE 4......OCCUPIED BANDWIDTH
     PAGE 5......SPURIOUS EMISSIONS AT ANTENNA TERMINALS
     PAGE 6......FIELD STRENGTH OF SPURIOUS EMISSIONS
     PAGE 7......METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS
     PAGE 8......FREQUENCY STABILITY
     PAGE 9-10...TRANSIENT FREQUENCY STABILITY
     PAGE 11......CERTIFICATION OF TECHNICAL DATA AND
                  LIST OF TEST EQUIPMENT

EXHIBITS CONTAINING:

     EXHIBIT   1.........POWER OF ATTORNEY LETTER
     EXHIBIT   2.........FCC ID LABEL SAMPLE
     EXHIBIT   3.........SKETCH OF LOCATION
     EXHIBIT   4A........EXTERNAL FRONT VIEW PHOTOGRAPH
     EXHIBIT   4B........EXTERNAL REAR VIEW PHOTOGRAPH
     EXHIBIT   4C........INTERNAL COMPONENT SIDE PHOTOGRAPH
     EXHIBIT   4D-G......INTERNAL SOLDER SIDE PHOTOGRAPH
     EXHIBIT   5.........BLOCK DIAGRAM
     EXHIBIT   6A-6V.....PARTS LIST
     EXHIBIT   7A-7D.....SCHEMATICS
     EXHIBIT   8A-8K.....USER'S MANUAL
     EXHIBIT    9........AUDIO FREQUENCY RESPONSE GRAPH
     EXHIBIT   10A-10B...AUDIO INPUT VS DEVIATION GRAPHS
     EXHIBIT   11........AUDIO LOW PASS FILTER GRAPH
     EXHIBIT   12........OCCUPIED BANDWIDTH CW PLOT
     EXHIBIT   13........OCCUPIED BANDWIDTH 2500 Hz DEVIATION PLOT
     EXHIBIT   14A-14D...TRANSIENT FREQUENCY RESPONSE PLOTS




APPLICANT:   ADI COMMUNICATIONS CORP.
   FCC ID:   MKDAP99
 REPORT #:   F:\CUS\A\ADI\ADI111T9.RPT
     PAGE:   TABLE OF CONTENTS


                       GENERAL_INFORMATION_REQUIRED
                           FOR_TYPE_ACCEPTANCE

2.983 (a,b,c)      ADI COMMUNICATIONS CORP. will sell the
                      MODEL NO. MKDAP99 VHF transmitter in quantity,
                   for use under FCC RULES PART 22 & 90.

2.983 (d)          TECHNICAL_DESCRIPTION

 (1)   Type of Emission:          10K0F3E For 25KHz
                                  10K0F3E For 12.5KHz
             For 25KHz
                  Bn = 2M + 2DK
                     M = 3000
                     D = 2.0KHz (Peak Deviation)
                     K = 1
                     Bn = 2(3.0K) + 2(2.0K)(1) = 6.0K + 4.0K = 10.0K
             ALLOWED AUTHORIZED BANDWIDTH = 20.00KHz.

          For 12.5KHz
               Bn = 2M + 2DK
                  M = 3000
                      D = 2.0KHz (Peak Deviation)
                  K = 1
                  Bn = 2(3.0K) + 2(2.0K)(1) = 6.0K + 4.0K = 10.0K
          ALLOWED AUTHORIZED BANDWIDTH = 11.25KHz.
90.209(b)(5)

             (2)   Frequency Range:            421-512 MHz

             (3)   Power Range and Controls:There are NO user Power
                   controls.

             (4)   Maximum Output Power Rating:
                           4.5 Watts ,
                   into a 50 ohm resistive load.

             (5)   DC Voltages and Current into Final Amplifier:

                   POWER INPUT
                            FINAL AMPLIFIER ONLY
                            Vce =   7.50 Volts
                            Ice =   1.93 A.

                            Pin = 14.5 Watts




APPLICANT:    ADI COMMUNICATIONS CORP.
   FCC ID:    MKDAP99
 REPORT #:    F:\CUS\A\ADI\ADI111T9.RPT
   PAGE #:    1


             (6)   Function of each electron tube or semiconductor
                   device or other active circuit device:
                   - SEE EXHIBIT 6A-6V.

2.983(d)     (7)   Complete Circuit Diagrams: The circuit diagram is
                   included as EXHIBIT 7A-7D. The block diagram is
                   included as EXHIBIT 5.

             (8)   Instruction book. The instruction manual is included
                   as EXHIBIT #8.

             (9)   Tune-up procedure.   The tune-up procedure is given
                   in EXHIBIT #8.

             (10) Description of all circuitry and devices provided
                  for determining and stabilizing frequency is
                  included in the circuit description in the
                  instruction manual.

2.983      (11)    Description of any circuits or devices employed
                   for suppression of spurious radiation, for limiting
                   modulation, and for limiting power.

                   In addition to the interstage filtering the multi-
                   section low pass filter made up of L12, L11, C40, C47,
                   C95, C46, C94, C45, & C26.

                   Limiting Modulaton:
                   The transmitter audio limiting circuitry is contained
                   in the loop filter IC01.

                   Limiting Power: There is no provision for limiting
                   power.

             (12) Digital modulation.     This unit does NOT use digital
                  modulation.

2.983(e)           The data required by 2.985 through 2.997 is submitted
                   below.




APPLICANT:    ADI COMMUNICATIONS CORP.
   FCC ID:    MKDAP99
 REPORT #:    F:\CUS\A\ADI\ADI111T9.RPT
   PAGE #:    2


2.985(a)         RF_power_output.

                 RF power is measured    by connecting a 50 ohm, re-
                 sistive wattmeter to    the RF output connector. With
                 a nominal battery       voltage of 7.2V, and the
                 transmitter properly    adjusted the RF output measures:

                   POWER OUTPUT
                   INPUT POWER: (7.5V)(1.93A) = 14.5 Watts
                   OUTPUT POWER: 4.6 Watts      Efficiency: 32%




                   METHOD OF MEASURING RF POWER OUTPUT




    /-----------\                     /---------\
    |Transmitter|---------------------|50 ohm   |
    |under test |                     |Resistive|
    \-----------/                     |Wattmeter|
           |                          \---------/
    /-----------\
    |Power      |
    |Supply     |
    \-----------/



2.987(a)         Voice Modulation_characteristics:

     (a)         AUDIO_FREQUENCY_RESPONSE      See the EXHIBIT #9.

2.987(a)         AUDIO_LOW_PASS_FILTER
                 The audio low pass filter is included and the         plot
                 is shown as EXHIBIT #11. Rules 90.210(b,d, & e)
                 for mobile stations with a low pass filter.

2.987(b)         Audio_input_versus_modulation    A plot of the
                 audio input versus deviation is shown in
                 in EXHIBIT #10.




APPLICANT:   ADI COMMUNICATIONS CORP.
   FCC ID:   MKDAP99
 REPORT #:   F:\CUS\A\ADI\ADI111T9.RPT
   PAGE #:   3


2.989(c)         Occupied_bandwidth:

90.210(b,)
Data in the plots shows that on any frequency removed from the
assigned frequency by more than 50%, but not more than 100%: At
least 25dB. On any frequency removed from the assigned frequency
by more than 100%, but not more than 250%: At least 35dB. On any
frequency removed from the assigned frequency by more than 250%,
of the authorized bandwidth: At least 43+log(P)dB.

90.210( d)     12.5KHz channel bandwidth equipment. For transmit-
ters de signed to operate with a 12.5KHz channel bandwidth, any
emission must be attenuated below the power (P) of the highest
emission contained within the authorized bandwidth as follows;
(1) On any frequency from the center of the authorized bandwidth
f0 to 5.625kHz removed from fP0: Zero dB.
(2) On any frequency removed from the center of the authorized
bandwidth by a displacement frequency(fd-2.88kHz)dB.
(3) On any frequency removed from the center of the authorized
bandwidth by a displacement frequency(fd in kHz Log(P) or 70dB,
whichever is the lesser attenuation.

                Radiotelephone transmitter with modulation limiter.

     Test procedure: TIA/EIA-603 para 2.2.11 , with the exception
that various tones were used.

                       Test procedure diagram

                    OCCUPIED BANDWIDTH MEASUREMENT

                            Coupler
    /-----------\            /---\         /---------\
    |Transmitter|            |   |         |50 ohm   |
    |under test |------------|   |---------|Resistive|
    \-----------/            |   |         |Wattmeter|
         |                   \---/         \---------/
    /-----------\         /----------\
    |Audio      |         | Spectrum |
    |Oscillator |         | Analyzer |
    \-----------/         \----------/




APPLICANT:   ADI COMMUNICATIONS CORP.
   FCC ID:   MKDAP99
 REPORT #:   F:\CUS\A\ADI\ADI111T9.RPT
   PAGE #:   4


2.991            Spurious_emissions_at_antenna_terminals(conducted):
                  Data on the following page shows the level of con-
                  ducted spurious responses. The carrier was modu-
                  lated 100% using a 2500Hz tone.      The spectrum was
                  scanned from 0.4 to at least the 10th harmonic of the
                  fundamental. The measurements were made in accordance
                  with standard TIA/EIA-603.

               Method of Measuring Conducted Spurious Emissions
                                                        /--------\
                                                        |HP      |
                                                        |Spectrum|
                                                        |Analyzer|
                                                        |8566B   |
                                                        \--------/
                                                            /----\
/-----------\      /-----------------\     /---------\      | L |
|TRANSMITTER|      | 50 OHM RESISTIVE|     |          |     | O |
| UNDER TEST|------| LOAD            |-----|          |-----| A |
\-----------/      \-----------------/     \---------/      \-D--/
                                             ATTENUATOR

2.991 Continued        Spurious_Emissions_at_the_Antenna_Terminals:

REQUIREMENTS:           Emissions must be 43 +10log(Po) dB below the
                        mean power output of the transmitter.
        For 25KHz       43 + 10log(5.5) = 43+ 7.4 = 50.4dB
        For 12.5KHz   50 + 10log(Po) = 50 + 6.63 = 56.63

                    EMISSION             dB BELOW
                    FREQUENCY            CARRIER
                    ___MHz___            _________
                     450.00                00.0
                     900.00               -64.8
                    1350.00               -68.6
                    1800.00               -69.7
                    2250.00               -78.0
                    2700.00               -77.8
                    3150.00               -78.7
                    3600.00               -78.9
                    4051.00               -80.8
                    4500.00               -78.9
METHOD OF MEASUREMENT: The procedure used was TIA/EIA-603 STANDARD
without any exceptions. An audio generator was connected to the UUT
through a dummy microphone circuit and the output of the transmitter
connected to a standard load and from the standard load through a pre-
selector filter of the spectrum analyzer. The spectrum was scanned
from 400KHz to at least the tenth harmonic of the fundamental using a
HP model 8566B spectrum analyzer. The measurements were made using the
shielded room located at TIMCO ENGINEERING INC. 6051 N.W. 19 LANE,
GAINESVILLE, FL 32669.

APPLICANT:    ADI COMMUNICATIONS CORP.
   FCC ID:    MKDAP99
 REPORT #:    F:\CUS\A\ADI\ADI111T9.RPT
   PAGE #:    5


2.993(a)(b)       Field_strength_of_spurious_emissions:



NAME OF TEST:          RADIATED SPURIOUS EMISSIONS


REQUIREMENTS:          Emissions must be 43 +10log(Po) dB below the
                       mean power output of the transmitter.

                           50 + 10log(4.5) = 56.5 dB


           METER
          READING                ANTENNA
EMISSION   @ 3            COAX CORRECTION FIELD
FREQUENCY METERS          LOSS   FACTOR STRENGTH       ATT.
__MHz _____dBuV____        dB      dB_     dBuV/m    _dB_      dB__

 450.00      112.70       1.60    18.15   132.45        0.0      0.0    H
 900.40       46.30       2.90    24.20    73.40       59.05     2.55   H
1350.00       38.90       1.00    25.40    65.30       67.15    65.30   V
1800.00       32.60       1.00    27.20    60.80       71.65    15.15   H
2250.00       24.50       1.07    28.63    54.19       78.26    21.76   H
2700.00       19.80       1.14    29.75    50.69       81.76    25.26   H
3150.00       19.80       1.20    30.88    51.88       80.57    24.07   H
3600.00       16.00       1.27    32.00    49.27       83.18    26.68   H
4050.00       11.90       1.34    33.06    46.29       86.16    29.66   V
4500.00       11.80       1.41    33.56    46.77       85.68    29.18   H


METHOD OF MEASUREMENT: The tabulated Data shows the results of the
radiated field strength emissions test. The spectrum was scanned from
30 to at least the tenth harmonic of the fundamental. This test was
conducted per ANSI STANDARD C63.4-1992 with the exception of briefly
connecting the transmitter to a half wave dipole for the purpose of
establishing a reference. Measurements were made at the open field
test site of TIMCO ENGINEERING INC. located at 6051 N.W. 19th Lane
Gainesville, FL 32605.




APPLICANT:    ADI COMMUNICATIONS CORP.
   FCC ID:    MKDAP99
 REPORT #:    F:\CUS\A\ADI\ADI111T9.RPT
   PAGE #:    6


2.993(a)(b)



2.993(a)(b)     Continued   Field_strength_of_spurious_emissions:




         Method of Measuring Radiated Spurious Emissions




                                                        Hewlett Packard
                                                            Spectrum
                                                            Analyzer
                                                            HP8555A

/-----------\       /----------------\                      /----\
|           |       |                |                |     |    |
|TRANSMITTER|-------|50 OHM RESISTIVE|                \-----|    |
| UNDER TEST|       | LOAD           |                      |    |
\-----------/       \----------------/                      \----/
     |                               |                |
     |                               |                |
     |                               |<-3.0 meters-->|
     |
     |                                 Tuned, Calibrated
     |                                   Antenna which may
/--------------\                          be raised from 4
|              |                          to 20' above ground
|POWER SUPPLY |                           and changed
|              |                          in polarization
\--------------/


Equipment placed 4' above ground
on a rotatable platform.




APPLICANT:    ADI COMMUNICATIONS CORP.
   FCC ID:    MKDAP99
 REPORT #:    F:\CUS\A\ADI\ADI111T9.RPT
   PAGE #:    7


2.995(a)(b)(d) Frequency_stability:
90.213(a)
     Temperature and voltage tests were performed to verify that
     the frequency remains within the .0005%, 5.0 ppm specification
     limit, for 25KHz spacing & 0.00025% for 12.5KHz spacing and
     0.0001% for 6.25KHz spacing. The test was conducted as follows:
     The transmitter was placed in the temperature chamber at 25
     degrees C and allowed to stabilize for one hour. The transmitter
     was keyed ON for one minute during which four frequency readings
     were recorded at 15 second intervals. The worse case number was
     taken for temperature plotting. The assigned channel frequency
     was considered to be the reference frequency. The temperature was
     then reduced to -30 degrees C after which the transmitter was
     again allowed to stabilize for one hour. The transmitter was
     keyed ON for one minute, and again frequency readings were noted
     at 15 second intervals. The worst case number was recorded for
     temperature plotting. This procedure was repeated in 10 degree
     increments up to + 50 degrees C.

     Readings were also taken at minus 25% of the battery voltage   of
     5.4VDC, which we estimate to be the battery endpoint.


                              MEASUREMENT DATA:

     Assigned Frequency (Ref. Frequency):        470.000 000MHz

     TEMPERATURE_C               FREQUENCY_MHz           PPM

     REFERENCE_____________      470.000   000            00.0
     -30_____________            470.001   130           +2.40
     -20_____________            470.000   730           +1.55
     -10_____________            470.000   490           +1.04
       0_____________            470.000   420           +0.89
     +10_____________            470.000   770            1.64
     +20_____________            470.000   188           +0.40
     +30_____________            469.999   440           -1.19
     +40_____________            469.999   310           -1.47
     +50_____________            469.999   190           -1.72

      20oC Battery +15% 15.64VDC      470.000 370       +0.72
                   -15% 11.56VDC      470.000 150       +0.32

     RESULTS OF MEASUREMENTS: The maximum frequency variation over
     the   temperature range was -1.72 to 2.40 ppm.       The maximum
     frequency variation over the voltage range was +0.72 ppm.




APPLICANT:   ADI COMMUNICATIONS CORP.
   FCC ID:   MKDAP99
 REPORT #:   F:\CUS\A\ADI\ADI111T9.RPT
   PAGE #:   8


2.995(a)(b)(d) Frequency_stability:
90.214         Transient Frequency Behavior


REQUIREMENTS:In the 150-174MHz frequency band, transient frequen-
cies must be within the maximum frequency difference limits
during the time interval indicated below for 12.5kHz Channels:

 /---------------------------------------\
 | Time     | Maximum   | Portable       |
 | Interval | Frequency | Radios         |
 |          |           | 150-174Mhz     |
 |----------|-----------|----------------|
 |          |           |                |
 | t1       | +12.5kHz | 5.0ms           |
 |----------|-----------|----------------|
 |   t2     | +6.25kHz | 20.0ms          |
 |----------|-----------|----------------|
 |   t3,t4 | +12.5kHz | 5.0ms            |
 \---------------------------------------/




TEST PROCEEDURE:    TIA/EIA TS603 PARA 2.2.19, the levels were   set
as follows;

     1. Using the varible attenuator the transmitter level was
     set to 40dB below the test recievers maximum input level,
     then the transmitter was turned off.
     2. With the Transmitter off the signal generator was set
     20dB below the level of the transmitter in the above step,
     this level will be maintained with the signal generator
     through-out the test.
     3. Reduce the attenuation between the transmitter and the RF
     detector by 30dB.
     4. With the levels set as above the transient frequency
     behavior was observed & recorded.




APPLICANT:   ADI COMMUNICATIONS CORP.
   FCC ID:   MKDAP99
 REPORT #:   F:\CUS\A\ADI\ADI111T9.RPT
   PAGE #:   9


2.995(a)(b)(d) Frequency_stability:
90.214         Transient Frequency Behavior
(Continued)




  /------------\                       /------------\
  | DUMMY       |                      | RF SIGNAL |      /---------\
  | MICROPHONE |                       | GENERATOR |----|COMBINING|
  \------------/                       \------------/     |NETWORK |-\
       |                                               /--|         | |
  /-------------\ /-------------\      /------------\ | \---------/ |
  | TRANSMITTER | | STANDARD       |   | DIRECTIONAL| |               |
  | UNDER TEST |--| TRANSMITTER |---| COUPLER        |-/              |
  \-------------/ | & VARIABLE |       |             |                |
                    | ATTENUATOR |     \------------/                 |
                    \-------------/       |       |                   |
                                          | /-----/                   |
                     /------------------/ |                           |
               /----------\       /----------\ /----------\           |
               | RF        |      | 5O OHM | | RF POWER |             |
               | DETECTOR |       | LOAD      | | METER     |----\    |
               \----------/       \----------/ \----------/      ?    |
                     |                                           -----/
                     \---------\                                 ?
                                |                 /---------\    |
         /------------\       /--------------\    | TEST    |----/
         |             |      | Trig     Vert |---| RECEIVER|
         | PLOTTER     |------|               |   |         |
         |             |      | STORAGE       |   \---------/
         \------------/       | OSCILLASCOPE |
                              \--------------/




APPLICANT:   ADI COMMUNICATIONS CORP.
   FCC ID:   MKDAP99
 REPORT #:   F:\CUS\A\ADI\ADI111T9.RPT
   PAGE #:   10


2.983(f)         Photo_or_Drawing_of_Label:
                 See Page 2.

2.983(g)         Photos_of_Equipment:
                 See Pages 4A-4D.

2.999            Measurement_Procedures_for_Type_Acceptance:

                 Measurement techniques have been in accordance
                 with EIA specifications and the FCC requirements.

2.909            Certification_of_Technical_Data_by_Engineers

                 We, the undersigned, certify that the enclosed
                 measurements and enclosed data are true    and
                 correct.

                                          _S. S. Sanders___
                                          S.S. Sanders
                                          Engineer


                       LIST_OF_TEST_EQUIPMENT


 1.     Spectrum Analyzer: Hewlett Packard 8566B - Opt 462, w/
        preselector 85685A, & Quasi-Peak Adapter HP 8565OA, & HP
        8449B - OPT H02    Cal. 6/26/98
 2.     Signal Generator, Hewlett Packard 8640B, cal. 10/1/98
 3.     Eaton Biconnical Antenna Model 94455-1
        20-200 MHz Serial No. 0997 Cal. 10/30/98
 4.     Electro-Metric Dipole Kit, 20-1000 MHz, Model TDA-30 10/15/98
 5.     Electro-Metric Horn 1-18 GHz, Model RGA-180, Cal. 10/30/98
 6.     Electro-Metric Antennas Model TDA-30/1-4,Cal. 10/15/98
 7.     Electro-Metric Line Impedance Stabilization Network Model
        No. EM-7821, Serial No. 101; 100KHz-30MHz 50uH. Cal.11/19/98
 8.     Electro-Metric Line Impedance Stabilization Network Model
        No. EM-7820, Serial No. 2682; 10KHz-30MHz 50uH. Cal. 11/19/98
 9.     Special low loss cable was used above 1 GHz
10.     Tenney Temperature Chamber




APPLICANT:   ADI COMMUNICATIONS CORP.
   FCC ID:   MKDAP99
 REPORT #:   F:\CUS\A\ADI\ADI111T9.RPT
   PAGE #:   11



Document Created: 2001-06-29 15:23:49
Document Modified: 2001-06-29 15:23:49

© 2025 FCC.report
This site is not affiliated with or endorsed by the FCC