Test report - ICAO

Test report 20072089301 - rev1.0

based on: ACP/WGB17/WP (Clauses B.1.2.2, B.1.2.6 and B.1.3.2 only) Frequency testing of VDL Mode 4 for the development of frequency planning criteria, October 2004, Version 1.4

VDL mode-4 Radio Communication Equipment Rockwell Collins VHF-2120

Report number: 20072089301

Contents

MAIN MODULE............................................................................................................................................3 1 INTRODUCTION ....................................................................................................................................3 2 PRODUCT .............................................................................................................................................4 3 TEST SCHEDULE ...................................................................................................................................4 4 OBSERVATIONS AND COMMENTS .........................................................................................................5 5 SUMMARY............................................................................................................................................8 6 CONCLUSIONS......................................................................................................................................9

TEST RESULTS MODULE .......................................................................................................................10 1 SQUELCH BREAK TEST (B.1.2.2) ........................................................................................................10

1.1 Test set up ................................................................................................................................10 1.2 Squelch break test ....................................................................................................................11 1.3 Squelch break test (cont’d).......................................................................................................12 1.4 Squelch break test (cont’d).......................................................................................................13

2 SIGNAL TO PULSE (S/P) TEST (B.1.2.6) ...............................................................................................14 2.1 Test set up ................................................................................................................................14 2.2 Signal to pulse (S/P) test ...........................................................................................................15 2.3 Signal to pulse (S/P) test (cont’d) .............................................................................................17 2.4 Signal to pulse (S/P) test (cont’d) .............................................................................................19

3 BER TEST (DSB-AM INTERFERER TO VDL MODE 4 LINK) (B.1.3.2)..................................................21 3.1 Test set up ................................................................................................................................21 3.2 BER test ...................................................................................................................................22 3.3 BER test (cont’d)......................................................................................................................24 3.4 BER test (cont’d)......................................................................................................................26

4 BER TEST (VDL MODE 4 INTERFERER TO VDL MODE 2 LINK) (B.1.3.2) ............................................28 4.1 Test setup .................................................................................................................................28 4.2 BER test ...................................................................................................................................29

5 BER TEST (VDL MODE 2 INTERFERER TO VDL MODE 4 LINK) (B.1.3.2) ............................................31 5.1 Test setup .................................................................................................................................31 5.2 BER test ...................................................................................................................................32

6 BER TEST (VDL MODE 4 INTERFERER TO VDL MODE 4 LINK) (B.1.3.2) ..........................................34 6.1 Test setup (RC VHF-2120 interferer to CNS VDL-4000 victim) ............................................34 6.2 Test setup (CNS VDL-4000 interferer to RC VHF-2120) .......................................................35 6.3 BER test ...................................................................................................................................36 6.4 BER test (cont’d)......................................................................................................................38

USED TEST EQUIPMENT MODULE .....................................................................................................40

PHOTOGRAPHS MODULE......................................................................................................................41

REVISION HISTORY ................................................................................................................................56

This report comprises of five modules. The total number of pages is: 56

Page: 3 of 56 Main module Report number: 20072089301

Main module

1 Introduction This report contains the result of tests performed by: Telefication B.V. Edisonstraat 12a 6902 PK Zevenaar The Netherlands Telefication complies with the accreditation criteria for test laboratories as laid down in ISO/IEC 17025:2005. The accreditation covers the quality system of the laboratory as well as the specific activities as described in the authorized annex bearing the accreditation number L021 and is granted on 30 November 1990 by the Dutch Council For Accreditation (RvA: Raad voor Accreditatie). The copyright of this test report is owned by Telefication bv and may not be reproduced except in full without the written approval of Telefication B.V.

Ordering party: Company name : Luftfartsverket Address : Vikboplan 11 Zipcode : SE-601 79 City/town : Norrköping Country : Sweden Date of order : 13 March 2008


2 Product A sample of the following product was submitted for testing: Product category : VDL mode-4 Radio Communication Equipment Manufacturer : Rockwell Collins USA Trade mark : Rockwell Collins Type designation : VHF-2120 Hardware version : Test model Software version : Test model Serial number : 277RF

3 Test schedule Tests are carried out in accordance with the specification detailed in chapter 5 "Summary" of this report. Tests were carried out at the following location: • Rockwell-Collins France

6, avenue Didier Daurat 31701 Blagnac Cedex France

Tests are carried out between the following dates: • 14 January and 18 March 2008


4 Observations and comments This report contains the results of tests of four different interferer to communication link configurations. 1. DSB-AM interferer to VDL mode 4 link.. Find below the information recorded for the labelling of each of the DSB -AM radio's radio which were used: Becker COMM 3200 system Serial number : 10200 LAB No. : 10.9111/76 FTZ No : LB 3939.83 TSO : C37c, C38c RTCA : DO 156 CL.C RTCA : DO 157 CL.4 RTCA : DO 160A FCC ID : 8548RSAR3201 ED14A Rockwell Collins VHF-700A PRN : 822-0693-020 Serial number : 12227 TSO : C37b, C38b FCC ID : AJK9URPN662-5219 DO-160-A : A2D2/JY Rockwell Collins VHF-2100E PRN : 822-2168-120 Serial number : 29PWD TSO : C128, C169 ETSO : 2C37e, 2C38e, 2C128 DO-160C : ENV CAT DO-178B : Level C/D 2. VDL mode 4 interferer to VDL mode 4 link This test was carried out by using two CNS Systems VDL4000 transceivers, one as the generator of the wanted signal and the other as the victim. The RC VHF-2120 was used to create the interferer.


Find below the information recorded for the labelling of each of the CNS Systems VDL4000 radio's radio which were used: CNS Systems VDL4000 Serial number : 1025 PN : 4000-10-10 Software : SW4000-10-3.8 This radio was used to send the wanted VDL4 signal. CNS Systems VDL4000 Serial number : 1047 PN : 4000-10-10 Software : SW4000-40-1.0 This radio was used as the victim. The test was also carried out, by using a CNS VDL4000 radio as the interferer and the RC VHF-2120 as the victim. The communication link with the victim was established by a vector signal generator, type Agilent E4438C. RC VHF-2120 (victim) Serial number : 277RF PN : 822-2224-001 3. VDL mode 4 interferer to VDL mode 2 link This test was carried out, by using a VDL2 test bench containing a VHF-920 and a VHF-2100E transceiver, the first as the generator of the wanted signal and the second as the victim. The RC VHF-2120 was used to create the interferer. Rockwell Collins VHF-2100E (victim) PRN : 822-2168-120 Serial number : 29PWD TSO : C128, C169 ETSO : 2C37e, 2C38e, 2C128 DO-160C : ENV CAT DO-178B : Level C/D


4. VDL mode 2 interferer to VDL mode 4 link This test was done, by using a RC VHF-2120 as an interferer and a RC VHF-2120 as a victim. The communication link with the victim was established by a vector signal generator, type Agilent E4438C. RC VHF-2120 (victim) Serial number : 277RF PN : 822-2224-001


5 Summary The product is intended for use in the following application area:

• AIRBORNE DIGITAL COMMUNICATION EQUIPMENT The sample is tested according to the following specification:

• ACP/WGB17/WP (Clauses B.1.2.2, B.1.2.6 and B.1.3.2 only) Frequency testing of VDL Mode 4 for the development of frequency planning criteria, October 2004, Version 1.4


6 Conclusions The results of the test as stated in this report are exclusively applicable to the product item as identified in this report. Telefication bv does not accept any responsibility for the results stated in this report, with respect to the properties of product items not involved in these tests. All tests are performed by: name : H.H. Lodewijk function : Test Engineer Radio/EMC signature : Review of test methods and report by: name : P.A. Suringa function : Senior Engineer Radio/EMC signature : The above conclusions have been verified by the following signatory: date : 9 April 2008 name : J.P. van de Poll function : Co-ordinator Test Group signature :

Page: 10 of 56 Test results module Report number: 20072089301

Test results module

1 Squelch break test (B.1.2.2)

1.1 Test set up

+DUTVDL4 Tx

DSB-AMRx

Signal generatorDSB-AM 1kHz, 30%

Pwr attn

Pwr attnOscilloscope


1.2 Squelch break test Measurement reference : Clause B.1.2.2 Interferer : Rockwell Collins VHF-2120 Victim : Becker COMM 3200 Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24 ° C Relative humidity : 46% Result:

dB rel. to squelch open level

Channel offset (N) Result @ 119 MHz Result @ 128 MHz Result @ 136 MHz

-40 > 85 > 85 > 85 -20 > 85 > 85 > 85 -10 > 85 > 85 > 85 -5 > 85 > 85 > 85 -4 > 85 > 85 > 85 -3 > 85 > 85 > 85 -2 > 85 > 85 > 85 -1 66 74 73 0 0 (note 1) 0 (note 2) 0 (note 3)

+1 67 76 76 +2 > 85 > 85 > 85 +3 84 > 85 > 85 +4 > 85 > 85 > 85 +5 > 85 > 85 > 85 +10 > 85 > 85 > 85 +20 > 85 > 85 > 85 +40 > 85 > 85 > 85

note 1: corresponds to -92 dBm note 2: corresponds to -94 dBm note 3: corresponds to -96 dBm Channel offset: N * 25 kHz, at 136 MHz the +40 channel was tested at +39 (136.975 MHz) Measurement uncertainty : +/- 1.6 dB The reported uncertainty is based on a standard uncertainty multiplied by a

coverage factor of k=1.96 providing a level of confidence of 95%, but excluding the effect of measurement system repeatability.

Measurement equipment : 1, 2, 4, 5, 6, 13, 14, 16

(The numbers listed refer to the module 'Used test equipment module'.)


1.3 Squelch break test (cont’d) Measurement reference : clause B.1.2.2 Interferer : Rockwell Collins VHF-2120 Victim : Rockwell Collins VHF-700A Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24° C Relative humidity : 46% Result:



-40 > 85 > 85 > 85 -20 > 85 > 85 > 85 -10 > 85 > 85 > 85 -5 > 85 > 85 > 85 -4 > 85 > 85 > 85 -3 > 85 > 85 > 85 -2 > 85 > 85 > 85 -1 > 85 > 85 > 85 0 0 (note) 0 (note) 0 (note)

+1 > 85 > 85 > 85 +2 > 85 > 85 > 85 +3 > 85 > 85 > 85 +4 > 85 > 85 > 85 +5 > 85 > 85 > 85 +10 > 85 > 85 > 85 +20 > 85 > 85 > 85 +40 > 85 > 85 > 85

note: corresponds to -107 dBm Channel offset: N * 25 kHz, at 136 MHz the +40 channel was tested at +39 (136.975 MHz) Measurement uncertainty : +/- 1.6 dB The reported uncertainty is based on a standard uncertainty multiplied by a





1.4 Squelch break test (cont’d) Measurement reference : clause B.1.2.2 Interferer : Rockwell Collins VHF-2120 Victim : Rockwell Collins VHF-2100E Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24° C Relative humidity : 46% Result:



-40 > 85 > 85 > 85 -20 > 85 > 85 > 85 -10 > 85 > 85 > 85 -5 > 85 > 85 > 85 -4 > 85 > 85 > 85 -3 > 85 > 85 > 85 -2 > 85 > 85 > 85 -1 > 85 > 85 > 85 0 0 0 0

+1 > 85 > 85 > 85 +2 > 85 > 85 > 85 +3 > 85 > 85 > 85 +4 > 85 > 85 > 85 +5 > 85 > 85 > 85 +10 > 85 > 85 > 85 +20 > 85 > 85 > 85 +40 > 85 > 85 > 85

Channel offset: N * 25 kHz, at 136 MHz the +40 channel was tested at +39 (136.975 MHz) Measurement uncertainty : +/- 1.6 dB The reported uncertainty is based on a standard uncertainty multiplied by a





2 Signal to pulse (S/P) test (B.1.2.6)

2.1 Test set up

+DUTVDL4 Tx

DSB-AMRx

Signal generatorDSB-AM1kHz, 30%

Pwr attn

Pwr attn

Oscilloscope


2.2 Signal to pulse (S/P) test Measurement reference : clause B.1.2.6 Interferer : Rockwell Collins VHF-2120 Victim : Becker COMM 3200 Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24° C Relative humidity : 46% Wanted signal level : -82 dBm @ input DSB-AM receiver under test Result:

Becker COMM 3200


-40 65 69 70 -20 65 69 69 -10 63 69 67 -5 58 65 63 -4 53 59 60 -3 50 60 58 -2 43 53 51 -1 41 48 47 1 39 46 48 2 46 56 51 3 49 61 58 4 54 64 61 5 60 66 64

10 64 70 68 20 66 71 68 40 66 72 69






VDL4 interferer to COMM 3200

35

40

45

50

55

60

65

70

75

-40 -30 -20 -10 0 10 20 30 40

Channel no

[dB

]

119MHz128MHz136MHz


2.3 Signal to pulse (S/P) test (cont’d) Measurement reference : clause B.1.2.6 Interferer : Rockwell Collins VHF-2120 Victim : Rockwell Collins VHF-700A Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24° C Relative humidity : 46% Wanted signal level : -82 dBm @ input DSB-AM receiver under test Result:

Rockwell Collins VHF-700A


-40 75 75 75 -20 73 75 75 -10 65 69 69 -5 58 66 62 -4 55 65 60 -3 52 61 56 -2 48 55 52 -1 46 50 48 1 45 51 49 2 47 58 54 3 52 62 56 4 53 65 62 5 59 67 66

10 62 73 71 20 70 75 75 40 75 75 75






VDL4 interferer to RC-700A

40

45

50

55

60

65

70

75

80

-40 -30 -20 -10 0 10 20 30 40

Channel no

[dB

] 119MHz128MHz136MHz


2.4 Signal to pulse (S/P) test (cont’d) Measurement reference : clause B.1.2.6 Interferer : Rockwell Collins VHF-2120 Victim ; Rockwell Collins VHF-2100E Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24 ° C Relative humidity : 46% Wanted signal level : -82 dBm @ input DSB-AM receiver under test Result:

Rockwell Collins VHF-2100E


-40 62 60 61 -20 60 60 60 -10 60 60 60 -5 54 59 59 -4 50 59 54 -3 47 58 52 -2 42 48 49 -1 40 40 38 1 36 37 39 2 48 49 48 3 49 55 52 4 51 58 58 5 55 59 59

10 58 60 60 20 60 60 61 40 61 60 61






VDL4 interferer to VHF-2100E

30

35

40

45

50

55

60

65

70

-40 -30 -20 -10 0 10 20 30 40

Channel no

[dB



3 BER test (DSB-AM interferer to VDL mode 4 link) (B.1.3.2)

3.1 Test set up DSB-AM inter

+

E4438C Vector signal generator

DUT VDL4 Rx

DSB-AM Tx

Pwr attn

Pwr attn


3.2 BER test Measurement reference : clause B.1.3.2 Interferer : Becker COMM 3200 Victim : Rockwell Collins VHF-2120 Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24 ° C Relative humidity : 46% Wanted signal level : -82 dBm @ input VDL4 receiver under test Result:

dB rel. (@ BER*) ≤ 1%) to wanted signal of - 82 dBm


-40 64 64 63 -20 63 65 63 -10 66 68 65 -5 66 62 64 -4 59 59 59 -3 63 60 63 -2 58 54 63 -1 52 47 55 1 52 46 55 2 62 57 58 3 63 60 64 4 57 60 60 5 65 63 64

10 65 66 65 20 65 65 67 40 66 65 69*

*) Over 40960 bits Channel offset : N * 25 kHz, at 136 MHz the +40 channel was tested at +39 (136.975 MHz) Measurement uncertainty : +/- 1.6 dB The reported uncertainty is based on a standard uncertainty multiplied by a


Measurement equipment : 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17.



COMM 3200 interferer to VDL4

40

45

50

55

60

65

70

75

80

-40 -30 -20 -10 0 10 20 30 40

Channel no

[dB



3.3 BER test (cont’d) Measurement reference : clause B.1.3.2 Interferer : Rockwell Collins VHF-700A Victim : Rockwell Collins VHF-2120 Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24 ° C Relative humidity : 46% Wanted signal level : -82 dBm @ input VDL4 receiver under test Result:

dB rel. to wanted signal of - 82 dBm


-40 66 64 71 -20 64 68 67 -10 68 68 69 -5 69 67 68 -4 62 65 62 -3 58 60 64 -2 56 56 58 -1 51 51 53 1 50 51 52 2 52 55 62 3 61 61 64 4 57 55 58 5 61 63 66

10 66 67 69 20 64 66 69 40 61 65 69

Channel offset : N * 25 kHz, at 136 MHz the +40 channel was tested at +39 (136.975 MHz) Measurement uncertainty : +/- 1.6 dB The reported uncertainty is based on a standard uncertainty multiplied by a





VHF-700A interferer to VDL4

40

45

50

55

60

65

70

75

80

-40 -30 -20 -10 0 10 20 30 40

Channel no

[dB



3.4 BER test (cont’d) Measurement reference : clause B.1.3.2 Interferer : Rockwell Collins VHF-2100E Victim : Rockwell Collins VHF-2120 Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24 ° C Relative humidity : 46% Wanted signal level : -82 dBm @ input VDL4 receiver under test Result:



-40 65 65 64 -20 66 66 64 -10 66 68 64 -5 65 62 63 -4 61 56 59 -3 63 62 62 -2 61 61 63 -1 54 54 55 1 54 56 55 2 63 62 62 3 64 64 63 4 57 59 58 5 65 66 64

10 67 66 68 20 64 63 63 40 65 63 68






VHF-2100E interferer to VDL4

40

45

50

55

60

65

70

75

80

-40 -30 -20 -10 0 10 20 30 40

Channel no

[dB



4 BER test (VDL mode 4 interferer to VDL mode 2 link) (B.1.3.2)

4.1 Test setup


4.2 BER test Measurement reference : clause B.1.3.2 Interferer : Rockwell Collins VHF-2120 Victim : Rockwell Collins VHF-2100E Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24 ° C Relative humidity : 46% Wanted signal level : -82 dBm @ input VDL2 receiver under test Result:



-40 74 74 74 -20 74 74 74 -10 72 72 72 -5 68 69 68 -4 64 67 65 -3 61 64 64 -2 56 59 57 -1 50 51 50 1 49 47 47 2 54 50 57 3 63 64 64 4 66 66 66 5 69 69 68

10 71 71 70 20 72 72 72 40 74 74 74



Measurement equipment : 1, 3, 5, 6, 7, 8, 11, 12, 13, 14, 15, 16, 18.



VHF-2120 interferer to VDL2

40

45

50

55

60

65

70

75

80

-40 -30 -20 -10 0 10 20 30 40

Channel no

[dB




5.1 Test setup


5.2 BER test Measurement reference : clause B.1.3.2 Interferer : Rockwell Collins VHF-2120 Victim : Rockwell Collins VHF-2120 Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24 ° C Relative humidity : 46% Wanted signal level : -82 dBm @ input VDL4 receiver under test Channel loading : 75 msec burst per second Result:



-40 65 62 63 -20 63 62 62 -10 66 64 65 -5 65 63 65 -4 48 46 46 -3 58 57 59 -2 66 60 58 -1 45 43 44 1 44 39 42 2 63 62 58 3 59 59 61 4 47 44 38 5 65 66 64

10 68 67 67 20 60 62 62 40 62 63 71



Measurement equipment : 1, 3, 5, 6, 13, 14, 16



RC VHF-2120 interferer to RC VHF-2120

35

40

45

50

55

60

65

70

75

-40 -30 -20 -10 0 10 20 30 40

Channel no

[dB




6.1 Test setup (RC VHF-2120 interferer to CNS VDL-4000 victim)


6.2 Test setup (CNS VDL-4000 interferer to RC VHF-2120)


6.3 BER test Measurement reference : clause B.1.3.2 Interferer : Rockwell Collins VHF-2120 Victim : CNS systems VDL4000 Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24 ° C Relative humidity : 46% Wanted signal level : -82 dBm @ input VDL4 receiver under test Result:



-40 68 67 66 -20 67 68 67 -10 61 62 62 -5 59 62 64 -4 57 58 62 -3 60 60 59 -2 61 59 58 -1 50 46 45 1 43 43 42 2 61 58 61 3 51 51 51 4 60 60 59 5 62 62 61

10 69 69 67 20 68 68 70 40 68 69 70



Measurement equipment : 1, 3, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16



VHF-2120 interferer to VDL4

35

40

45

50

55

60

65

70

75

-40 -30 -20 -10 0 10 20 30 40

Channel no

[dB



6.4 BER test (cont’d) Measurement reference : clause B.1.3.2 Interferer : CNS systems VDL4000 Victim : Rockwell Collins VHF-2120 Atmospheric pressure : between 86 kPa and 106 kPa Temperature : 24 ° C Relative humidity : 46% Wanted signal level : -82 dBm @ input VDL4 receiver under test Channel loading : 13 msec burst per second (1 slot) Result:



-40 66 63 62 -20 64 66 63 -10 67 69 68 -5 66 66 68 -4 49 48 46 -3 61 60 61 -2 61 63 58 -1 38 38 33 1 38 36 33 2 68 58 58 3 61 58 61 4 51 43 50 5 61 66 56

10 70 68 68 20 64 65 65 40 64 62 68



Measurement equipment : 1, 3, 5, 6, 13, 14, 16



CNS VDL-4000 interferer to RC VHF-2120

35

40

45

50

55

60

65

70

75

-40 -30 -20 -10 0 10 20 30 40

Channel no

[dB


Page: 40 of 56 Used test equipment module Report number: 20072089301

Used test equipment module Item Description Manufacturer Model ID 1 Spectrum analyser Hewlett Packard HP8560 460071036 2 Digital Oscilloscope LeCroy LC334A 4600710186 3 Communication

Service monitor Rhode & Schwarz CMS 50 4600714247

4 Vector signal generator

Agilent E4438C SN = US41461031

5 DC Power supply Insek SPS-3610 -- 6 RF attenuator

30 dB / 25 watt 0-4 GHz

Radial R417.330.110 No-01

7 RF attenuator 30 dB / 25 watt 0-4 GHz

Radial R417.330.110 No-02


Radial R417.330.110 No-03


Radial R417.330.110 No-04


Radial R417.330.119 No-05


Radial R417.310.110 No-06


Radial R417.310.110 No-07

13 Step attenuator 0-10 dB

ALAN 50V10-N 129338


ALAN 50V70-N 119568


Hewlett Packard 355C 4600710334

16 RF power splitter Mini circuits ZA2CS-600-10W-N

4502

17 Power Attenuator 10W, 6 dB, 50 Ω

Radial R4160060 TE00486

18 VDL mode 2 test bench bench

Rockwell -Collins France

-- --

Page: 41 of 56 Photographs module Report number: 20072089301

Photographs module Photograph 1: Rockwell-Collins VHF-2120, enclosure .................................................................................42 Photograph 2: Rockwell-Collins VHF-2120, front .........................................................................................43 Photograph 3: Rockwell-Collins VHF-2120, label (top) ................................................................................44 Photograph 4: Rockwell-Collins VHF-2120, label with serial number..........................................................45 Photograph 5: Rockwell-Collins VHF-920, front ...........................................................................................46 Photograph 6: Rockwell-Collins VHF-920, label...........................................................................................47 Photograph 7: Rockwell-Collins VHF-700A, front ........................................................................................48 Photograph 8: Rockwell-Collins VHF-700A, label ........................................................................................49 Photograph 9: Becker COMM 3200, control unit ..........................................................................................50 Photograph 10: Becker COMM 3200, ............................................................................................................51 Photograph 11: CNS Systems, VDL 4000 (1), enclosure................................................................................52 Photograph 12: CNS Systems, VDL 4000 (1), label .......................................................................................53 Photograph 13: CNS Systems, VDL 4000 (2), enclosure................................................................................54 Photograph 14: CNS Systems, VDL 4000 (2), enclosure................................................................................55


Photograph 1: Rockwell-Collins VHF-2120, enclosure


Photograph 2: Rockwell-Collins VHF-2120, front


Photograph 3: Rockwell-Collins VHF-2120, label (top)


Photograph 4: Rockwell-Collins VHF-2120, label with serial number


Photograph 5: Rockwell-Collins VHF-920, front


Photograph 6: Rockwell-Collins VHF-920, label


Photograph 7: Rockwell-Collins VHF-700A, front


Photograph 8: Rockwell-Collins VHF-700A, label


Photograph 9: Becker COMM 3200, control unit


Photograph 10: Becker COMM 3200,


Photograph 11: CNS Systems, VDL 4000 (1), enclosure


Photograph 12: CNS Systems, VDL 4000 (1), label





Page: 56 of 56 Revision history Report number: 20072089301

Revision history

REVISION DATE REMARKS

1.0 25-03-08 Results of VDL mode 2 interferer to VDL mode 4 link added. Results of VDL mode 4 interferer to VDL mode 4 link extended.

Documents

Test report - ICAO