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SPECIAL NOTICE
This product is now licensed to Anodyne Electronics Manufacturing (AEM) from Northern
Airborne Technology (NAT). AEM is responsible for all matters related to this product, including
sales, support and repair services.
Please note the transition to convert product manuals and supporting documentation is an
ongoing process and is being addressed on an 'as needed' basis.
All references to NAT product part numbers (and associated images) are equivalent to AEM
product part numbers.
Contact info:
Anodyne Electronics Manufacturing Corp.
#15-1925 Kirschner Road
Kelowna B.C. Canada
V1Y 4N7
Email:
support@aem-corp.com
Toll Free: 1-888-763-1088
Phone: 1-250-763-1088
Fax: 1-250-763-1089
www.aem-corp.com
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Table of Contents
Related Manuals for AEM SM28 NTX VHF-FM Series
Summary of Contents for AEM SM28 NTX VHF-FM Series
- Page 1 SPECIAL NOTICE This product is now licensed to Anodyne Electronics Manufacturing (AEM) from Northern Airborne Technology (NAT). AEM is responsible for all matters related to this product, including sales, support and repair services. Please note the transition to convert product manuals and supporting documentation is an ongoing process and is being addressed on an ‘as needed’...
- Page 2 REV 5.00 May 9, 2012 Anodyne Electronics Manufacturing Corp. 15-1925 Kirschner Road Kelowna, BC, Canada. V1Y 4N7 Telephone (250) 763-1088 Facsimile (250) 763-1089 Website: www.aem-corp.com © 2012 Anodyne Electronics Manufacturing Corp. (AEM), All Rights Reserved CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
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Page 3: Important Information
© 2012 Anodyne Electronics Manufacturing Corp. (AEM), All Rights Reserved This publication is the property of AEM and is protected by Canadian copyright laws. No part of this document may be reproduced or transmitted in any form or by any means including electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of AEM. - Page 4 The status of this installation and operation manual is controlled by the revision shown on the title page. The status of each section is controlled by revision shown in the footer of each page. All revisions affecting sections of this manual have been incorporated. AEM MANUAL REVISIONS Section Revision Number...
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Page 5: Table Of Contents
NTX VHF FM Series Remote Mount Transceiver SM28 Installation and Operation Manual Table of Contents Section Title Page Description Introduction Purpose of Equipment Features Specifications 1.4.1 Electrical Specifications 1.4.2 Receiver 1.4.3 Transmitter 1.4.4 Physical Specifications 1.4.5 Environmental Specifications VHF-FM Radio Spurious Frequencies Unit Nomenclature Installation Introduction... -
Page 6: Description
The NTX VHF-FM Series Remote Mount Transceivers are mounted using a custom ¼ ATR tray and are operated using an AEM Tac/Com™ control head. The NTX066 models operate over 66 to 88 MHz on the VHF mid-band, and the NTX138 models are capable of receiving and transmitting over 138 MHz to 174 MHz on the VHF high band. -
Page 7: Specifications
NTX VHF FM Series Remote Mount Transceiver SM28 Installation and Operation Manual Specifications 1.4.1 Electrical Specifications Input Power 28 Vdc Power Current consumption NTX066 and NTX138 models 300 mA receive / 2.5 A transmit (typical) 500 mA receive / 3.0 A transmit (max.) Sidetone output 25 mW @ 600 Ω... -
Page 8: Transmitter
10.67” (271.1 mm) Length without connector Width 5.23" (271.2 mm) Weight 4.0 lbs (1.8 kg) Mounting Custom AEM ¼ ATR tray (NTX-VT1) Connector type Male filtered 25-pin D-subminiature with Positronics V5 locking tabs Antenna Connector Bulkhead female BNC 1.4.5 Environmental Specifications Temperature: -30... -
Page 9: Vhf-Fm Radio Spurious Frequencies
NTX VHF FM Series Remote Mount Transceiver SM28 Installation and Operation Manual VHF-FM Radio Spurious Frequencies All VHF-FM radios are subject to the reception of spurious signals. Avoid operation on these frequencies whenever possible. The frequencies affected within the NTX066 radio are 66.00 MHz, 72.00 MHz, and 84.00 MHz. The frequencies affected within the NTX138 radios are 138.000 MHz, 144.00 MHz, 156.00 MHz and 168.000 MHz. -
Page 10: Installation
Verify that all items are present before proceeding and report any shortage immediately to your supplier. 2.2.1 Warranty All Anodyne Electronics Manufacturing Corp. (AEM) products are warranted for 2 years. See the website www.aem-corp.com/warranty for complete details. Installation Procedures 2.3.1 Warnings Do not bundle any lines from this unit with transmitter coax lines. -
Page 11: Cabling And Wiring
NTX VHF FM Series Remote Mount Transceiver SM28 Installation and Operation Manual 2.3.4 Cabling and Wiring All unshielded wire shall be selected in accordance with the original aircraft manufacturer’s maintenance instructions or AC43.13-1B Change 1, Paragraphs 11-76 through 11-78. Wire types should be to MIL-W- 22759 as specified in AC43.13-1B Change 1, Paragraphs 11-85, 11-86, and listed in Table 11-11. -
Page 12: Antennas
NTX VHF FM Series Remote Mount Transceiver SM28 Installation and Operation Manual 2.3.5 Antennas Correct antenna placement and mounting is critical in order to achieve the best possible performance. In general, keep all antennas as widely separated as possible and clear of any large airframe obstructions. Avoid any placement that puts antennas of like frequencies close together. -
Page 13: Post-Installation Checks
NTX VHF FM Series Remote Mount Transceiver SM28 Installation and Operation Manual 2.3.7 Post-Installation Checks 2.3.7.1 Voltage/Resistance Checks Do not attach the transceiver until the following conditions are met. Check the following: P101 pins <5> and <6> for +28 Vdc relative to ground. P101 pins <8>... -
Page 14: Continued Airworthiness
NTX VHF FM Series Remote Mount Transceiver SM28 Installation and Operation Manual Continued Airworthiness Maintenance of the NTX VHF-FM Series Remote Mount Transceiver is ‘on condition’ only. Periodic maintenance of these products is not required. Installation Drawings DOCUMENT REV. DESCRIPTION TYPE NTX138\403-0 1.30... - Page 19 INSTALLATION APPROVAL TEST PROCEDURE NAT Part #: NTX138 Description: Remote Mount FM Transceivers Document #: NTX138\634-0 Rev: 1.00 Post Installation EMI Test The purpose of this test is to identify any interference that the NTX138 may cause with existing aircraft systems. Test Conditions The NTX138 should be installed and function tested.
- Page 20 NTX138 Installation Approval Test Procedure Results If the installed system passes all of the applicable EMI tests, then no further action is required. If interference is observed, then the interference must be assessed against the appropriate standards of airworthiness for the system in question. For example: it is permissible for a VFR certified GPS to lose navigation capability while the NTX138 is transmitting, providing that it recovers properly and promptly, but it is not permissible for an IFR Approach certified GPS to be affected in the same way.
- Page 21 NTX138 Installation Approval Test Procedure Determine if the image frequency for the VHF Comm falls within the range of the NTX138 unit. If so, select a set of frequencies that will cause the NTX138 to be set as close as possible to the image frequency. Any one of the many possible sets will suffice.
- Page 22 NTX138 Installation Approval Test Procedure Determine if the image frequency for the VOR/ILS Nav falls within the range of the NTX138 unit. If so, select two sets of frequencies that will cause the NTX138 to be set as close as possible to the image frequency. Choose one set in the localizer frequency range, and one in the VOR frequency range.
- Page 23 NTX138 Installation Approval Test Procedure Modulate the NTX138 transmitter on the following frequencies for at least 20 seconds. Look for any movement of flags or needles on the navigation display. FREQUENCIES RESULTS G/S #1 NTX138 PASS FAIL 334.7 (108.1) 167.3500 FREQUENCIES RESULTS G/S #2...
- Page 24 NTX138 Installation Approval Test Procedure Perform a coupled ILS approach to the aircraft's certified limits. Modulate the NTX138 transmitter on the above frequencies for at least 20 seconds. Observe any effect on the autopilot. Repeat for each different system such as ILS #2, GPS, FMS etc.
- Page 25 NTX138 Installation Approval Test Procedure STEP SYSTEM PASS FAIL NOTES NOTES: End of Installation Approval Test Procedure Rev. 1.00 Aug 31, 2001 Page 7 of 7 E NG-FORM: 634-0100.DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
- Page 26 INSTALLATION APPROVAL TEST PROCEDURE NAT Part #: NTX066 Description: Remote Mount FM Transceivers Document #: NTX066\634-0 Rev: 1.00 Post Installation EMI Test The purpose of this test is to identify any interference that the NTX066 may cause with existing aircraft systems. Test Conditions The NTX066 should be installed and all functions should be tested.
- Page 27 NTX066 Installation Approval Test Procedure not have adverse effects on these systems. After checking for gross effects at a safe altitude, fly an approach with each of the different navigation systems coupled to the autopilot (ILS, GPS etc.) and look for any anomalies. Results If the installed system passes all of the applicable EMI tests, no further action is required.
- Page 28 NTX066 Installation Approval Test Procedure Example – Bendix/King KY 196A The first intermediate frequency (I.F.) is 11.4 MHz. The local oscillator (L.O.) frequency is above the received frequency (high side injection) therefore, the image frequency is 22.8 MHz above the selected frequency. The frequency band for the NTX066 is from 66.000 MHz to 87.9975 MHz therefore, the second harmonic could cause interference with the VHF Comm.
- Page 29 NTX066 Installation Approval Test Procedure Modulate the NTX066 transmitter on the frequencies listed in Table 4 for at least 20 seconds. Look for any movement of flags or needles on the navigation displays. Frequencies Results Channel G/S # NTX066 Pass Fail G/S #1 334.7 (108.100)
- Page 30 NTX066 Installation Approval Test Procedure Observations: List the power plant, fuel and other electric instruments in Table 5 and note any anomalies that occur while transmitting. Assess the results. STEP SYSTEM PASS FAIL NOTES Xponder & Encoder ADF 1 & 2 Compass Directional Gyro Oil Pressure...
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Page 31: Operation
138-173.9975 MHz on the VHF high band, and the NTX066 models operate over 66.0 to 88.9975 MHz on the VHF mid- band. The transceiver is controlled by a Tac/Com™ control head available from AEM. The relevant control head operation manual should be consulted for all operational information.
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