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Northern Airborne Technology Ltd.

1925 Kirschner Road

Kelowna, BC, Canada.

V1Y 4N7

Telephone (250) 763-2232

Facsimile (250) 762-3374

Issued on the authority of Northern Airborne Technology Ltd.

Installation and Operation Manual

NPX136D Series VHF P25

Panel Mount Transceiver

SM68

ISSUE 4.01

Summary of Contents for NPX136D Series

Page 1: ... Road Kelowna BC Canada V1Y 4N7 Telephone 250 763 2232 Facsimile 250 762 3374 Issued on the authority of Northern Airborne Technology Ltd Copyright 2008 Installation and Operation Manual NPX136D Series VHF P25 Panel Mount Transceiver SM68 ISSUE 4 01 ...

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Page 3: ... 3 1 4 5 Physical Specifications 1 3 1 4 6 Environmental Specifications 1 4 1 5 Unit Nomenclature 1 4 1 5 1 Lighting Power 1 4 1 5 2 Special Options 1 4 1 5 3 Other Options 1 4 1 6 Accessories 1 5 2 Installation 2 1 Introduction 2 1 2 2 Unpacking and Inspection 2 1 2 2 1 Warranty 2 1 2 3 Continued Airworthiness 2 1 2 4 Installation Procedures 2 1 2 4 1 Note on Cable Routing 2 2 2 4 2 Notes on Cabl...

Page 4: ...s Menu 3 10 3 6 1 Brightness 3 10 3 6 2 Transmit Power 3 10 3 6 3 Transmit Mode 3 10 3 6 4 Squelch Mode Analog Tones 3 10 3 6 5 Squelch Mode Receive Digital Squelch 3 11 3 6 6 Power Up Channel 3 11 3 6 7 Squelch Setting 3 11 3 6 8 Display Menu 3 11 3 7 Channel Menu 3 12 3 7 1 Edit Main Channel Menu Edit Main 3 12 3 7 2 Edit Guards Edit Guard Channel Menu 070 only 3 15 3 7 3 Edit Zone Menu 3 15 3 7...

Page 5: ...ere size and weight are a factor 1 3 Design Features The radio covers a frequency range of 136 0000 to 173 9975 MHz in 2 5 6 25 kHz increments Each of the 255 available channels can operate in one of three modes wide band analog narrow band analog or digital P25 Phase I A SCAN function allows scanning of selected channels Transmit power of either 1 watt or 10 watts is selectable from the front pan...

Page 6: ...Rate 8 channels per second 1 4 2 Main Receiver Reference Sensitivity 12dBSINAD 113 dBm Reference Sensitivity 5 BER 113 dBm Adjacent Channel Rejection 70 dB 25 kHz BW Spurious Response Rejection 70 dB Intermodulation Rejection 70 dB Audio Output Power 100 mW 600 ohms rated Audio Dynamic Range 37 dB Audio Frequency Response 300 3000 Hz Standard EIA Std 6 dB 1 3 dB oct de emphasis 300 500 Hz Standard...

Page 7: ...5 kHz BW Microphone Input Impedance 150 Ω 20 Audio Frequency Response 300 3000 Hz Standard EIA Std 6 dB 1 3 dB oct pre emphasis 300 500 Hz Standard with an additional 6 dB oct permitted 2500 3000 Hz Standard with an additional 6 dB oct permitted Audio Distortion 4 typical 10 max Audio Input Sensitivity 100 mV rms 60 of rated deviation Sidetone Audio Level 25 mW Adjustable Transmitter CTCSS Tone De...

Page 8: ...00 0115 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Lighting Power Special Options 1 5 1 Lighting Power The digit in the first position of the unit suffix indicates the lighting power used NPX136D 000 0 28 Vdc Lights 1 5 2 Special Options The digit in the second position of the unit suffix indicates any special options installed NPX136D 000 0 No Guard installed 7 Two chann...

Page 9: ...00 Issue 4 Page 1 5 ENG FORM 800 0115 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 1 6 Accessories Installation Kit NPX IKC Serial Load Kit FC51 000 Consists of PC Serial Load CD NUDP 006 Data Transfer Cable FC51 001 PC Cable FC47 001 TFM138 Harness to NPX FC45 002 Section 1 ends ...

Page 10: ...liver the defective unit to and from Northern Airborne Technology Ltd or its designated warranty repair center or any labour to remove or re install the defective unit in the aircraft Contact Northern Airborne Technology Ltd for any questions regarding this warranty its applicability to your units and or for return authorization Northern Airborne Technology Ltd is the final arbitrator concerning w...

Page 11: ...22759 as specified in AC43 13 1B Change 1 Paragraphs 11 85 11 86 and listed in Table 11 11 For shielded wire applications use Tefzel MIL C 27500 shielded wire with solder sleeves for shield terminations to make the most compact and easily terminated interconnect Follow the connector map in Section 2 6 as required Coaxial cable shall be selected in accordance with MIL C 17 unless otherwise specifie...

Page 12: ...cturers Maintenance Instructions or AC 43 13 1B Change 1 chapter 11 section 15 2 4 5 Antennas WARNING To limit exposure to radio frequency fields that exceed exposure limits for people occupying the aircraft install the antenna such that it is mounted either on a ground plane that is between the antenna and the occupants of the aircraft or further than 32 inches 80cm from the occupants of the airc...

Page 13: ...4 7 1 Voltage resistance checks Do not attach the radio until the following conditions are met Check the following a P1 pins 12 and 13 for 28 Vdc relative to ground b P1 pins 22 23 24 and 25 for continuity to ground below 0 5 Ω c Light voltage as per table below Light Voltage P1 Pin Voltage 28 Volt Models 11 28 Vdc 14 Volt Models 10 14 Vdc 5 Volt Models 10 5 Vdc Ensure that the antenna is disconne...

Page 14: ...urpose of this test is to identify any interference that the radio may cause with existing aircraft systems The radio should be tested in accordance with the Installation Approval Test Procedure see section 2 6 and the test results documented on the record sheets 2 5 Accessories Required But Not Supplied Installation kit p n NPX IKC crimp is required to complete the installation The kit consists o...

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Page 18: ... squelch open VOR ILS GS receivers should be set to the frequencies indicated and selected for display If possible set up a VOR ILS ramp test set on the frequencies indicated and adjust the output until the flags are out of view The transponder and encoder should be monitored with ramp test equipment If possible set the ADF to a nearby navigation station Modulate the NPX136D transmitter on the ind...

Page 19: ...R certified GPS to lose navigation capability while the NPX136D 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 A complete discussion of all the standards of airworthiness to be applied in assessing EMI effects is beyond the scope of this document 5 Procedure A Operate the NPX136D transmitte...

Page 20: ...spaces provided in the following chart Modulate the NPX136D transmitter on the following frequencies for at least 20 seconds Listen for any noise or detected audio signals on the VHF comm Example Bendix King KY 196A The first IF frequency is 11 4 MHz The L O is above the received frequency high side injection therefore the image frequency is 22 8 MHz above the selected frequency Set the KY 196A to...

Page 21: ...frequency Choose one set in the localizer frequency range and one in the VOR frequency range Record these values in the spaces provided in the following chart Modulate the NPX136D transmitter on the following frequencies for at least 20 seconds Listen for any noise or detected audio signals on the receiver audio look for any movement of flags or needles on the navigation display FREQUENCIES RESULT...

Page 22: ...S G S 1 NPX136D PASS FAIL 334 7 108 1 167 3500 FREQUENCIES RESULTS G S 2 NPX136D PASS FAIL 334 7 108 1 167 3500 NOTES Note For the following tests select frequencies at the top middle and bottom of the range of the NPX136D Frequency 1 ______________ Frequency 2 ______________ Frequency 3 ______________ E At a safe altitude engage the autopilot or stability augmentation system Modulate the NPX136D ...

Page 23: ...at least 20 seconds Observe any effect on the autopilot Repeat for each different system such as ILS 2 GPS FMS etc Observations G List the power plant fuel and other electric instruments in the chart provided and note any anomalies that occur while transmitting Assess the results STEP SYSTEM PASS FAIL NOTES 1 Xponder Encoder 2 ADF 1 2 3 VG 4 Compass 5 Directional Gyro 6 Oil Pressure 7 Fuel Pressur...

Page 24: ...Approval Test Procedure Rev 1 00 Apr 22 2004 Page 7 of 7 E NG FORM 634 0100 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD STEP SYSTEM PASS FAIL NOTES NOTES End of Installation Approval Test Procedure ...

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Page 26: ...Esc 9 WXYZ 5 JKL 1 _ ABC 2 6 MNO 0 ADD 7 PQRS 3 DEF GHI 4 8 TUV DEL GD 2 MIN OFF GD 1 GD TX NORM SCAN NPX136D TRANSCEIVER SQ HELP CHAN _ DISP _ ...

Page 27: ...eiver is standard with the 070 model The guard receiver is not installed in 000 models and the guard controls in these transceivers provide no function Conveniently located beside the display are separate main volume guard volume and transmit select switches Easily identified along the bottom of the front panel are squelch test channel up down and display controls The aircraft dimmer bus provides ...

Page 28: ...the installed functions and current settings This feature can be disabled for faster start up see section 3 6 8 3 Power up Help The NPX136D is then ready for normal operation referred to as Normal Operating Mode throughout this manual Radio Status Tx Mode Duplex Note Any activity that causes the radio to reprogram the transceiver modules changing the guard channel enabling or disabling squelch cha...

Page 29: ...reset minimum level 3 3 3 3 Main RX TX Status Annunciator The main RX TX annunciator displays the RX Receive and the TX Transmit status of the main transceiver When transmitting the LED will light green When an RF signal is received that matches the main channel s receive frequency the LED will light amber When idle not receiving or transmitting the LED will be dark The colour coding used for thes...

Page 30: ...STALLED will be displayed on the upper line when the switch is set to the GD TX position When the SCAN NORM GD TX switch is placed in the GD TX position all other modes of operation are cancelled and the NPX136D is put in to the guard transmit mode 3 3 3 7 Guard Channel Switch GD 1 GD 2 070 only The guard channel switch is a two position toggle switch that selects either guard channel GD 1 or GD 2...

Page 31: ...ble menu choices For details see section 3 5 3 3 3 12 Enter Button Pressing the Enter button selects a menu item or value For details see the relevant sections 3 3 3 13 Function Button Fn The Fn button is used to provide access to special functions See section 3 10 3 3 3 14 Escape Button Esc The Escape button is pressed to exit a menu or to discard changes For details see the relevant sections 3 3...

Page 32: ...ion the transmit information the current zone if zones are turned on and the receive or transmit talk group id if talk group display is turned on 3 4 1 Display Details 3 4 1 1 Channel Number Channel numbers for the main receiver are 001 255 This may be changed to include letters and other characters if the display settings channel number mode is set to alphanumeric Channel numbers allowed for the ...

Page 33: ...the receive squelch mode is the receive network access code or MON if the digital squelch mode is set to monitor Also for digital channels the talk group flag TG is shown if the channel s digital squelch mode is set to select See section 3 6 3 3 4 1 6 2 Transmit Display Duplex Mode T 173 9975 LO Shows the transmit frequency in MHz to four decimal places and the transmit squelch mode For analog cha...

Page 34: ...directly to a specific channel by pressing the keypad buttons of the required channel number and then press the Enter button When the channel number setting is numeric Goto Channel is displayed When the channel number setting is alphanumeric Goto Label is displayed See section 3 6 8 5 for more information on setting the channel number mode If the channel number entered is too big a message indicat...

Page 35: ...played When a menu has been selected press the Menu button again to advance to the next menu or editable field Pressing the Esc button will exit a menu and move to the previous menu level and from the top level menu pressing the Esc button will return to normal operating mode When any field is changed the operator is prompted Save Changes Press the Enter button to save the changes or press the Esc...

Page 36: ...imes 4 Press the Menu button and then the Enter button 5 The NPX136D should be in the brightness field of the Settings Menu 6 Press the up or down arrow until the display can be read 7 If this does not work repeat starting at step 1 3 6 2 Transmit Power Tx Pwr Lo Hi Per Chan The transmit power level for all channels can be changed from Lo 1 Watt or Hi 10 Watts or may be set to Per Chan where the p...

Page 37: ... noise squelch setting for analog channels with no CTCSS or DCS squelch mode may be set from 1 to 16 Displayed when enabled from the configuration menu The lower the selected setting value the lower the received RF signal may be to disable squelch and the higher the value the higher the received RF signal must be to disable the squelch Note If the noise squelch is set incorrectly the NPX136D may n...

Page 38: ...hange the parameters of the channels on the main transceiver To edit guard channels see the Edit Guard menu section 3 7 2 The Main receiver continues to operate with the original settings until the Edit Main menu is exited and normal operating mode is entered The transmitter is locked out from operation when in the Edit Main menu Select a different channel using the CHAN switch to scroll to the re...

Page 39: ... x7000 1xx x9500 1xx x2250 1xx x4750 1xx x7250 1xx x9750 Note is displayed if the frequency is not valid To enter an invalid number press the zero button when on the tens of megahertz number Invalid frequencies are used to disable a channel and prevent its use 3 7 1 2 Channel Name Name xxxxxxxxx Allowed characters 0 9 A Z a z _ The channel name can be up to 9 characters in length The character to ...

Page 40: ...ode The receive subaudible tone field is shown when the receive subaudible tone type is set to CTCSS or DCS 3 7 1 9 Analog Transmit Subaudible Tone Type Tx Tn Type None Ctcss Dcs The transmit subaudible tone type field is shown when the channel s modulation type is set to wide or to narrow 3 7 1 10 Analog Transmit Subaudible Tone Tx Tone 067 254 023 754 CTCSS frequency Motorola or DCS Code The tra...

Page 41: ...enu of the Channel Menu Allows editing of the guard channels parameters The channel being edited can be changed at any time using the GD1 GD2 switch Guard Channels are always locked and can only be edited if the master edit mode is on The guard receiver continues to operate with the original settings until the field is saved and normal operating mode is entered All fields are the same as for the m...

Page 42: ... of the Channel Menu From the Edit Scan menu the operator may select the scan mode select the channel numbers used for priority scanning and add or delete channels from scan list For details on scanning see section 3 10 3 7 4 1 Scan Mode Scan Menu Scan Mode List Pri L P The scan mode may be set to scan the list channels List the priority channel Pri or both L P 3 7 4 1 1 Priority Channel Scan Menu...

Page 43: ... menu To exit master edit mode turn the NPX136D off and then on 3 8 2 Configuration Menu Note Incorrect use of this mode may render the NPX136D INOPERABLE Use this function with extreme care Maint Menu Config Menu The configuration menu allows setting of NPX136D parameters that should only be carried out by qualified technicians or experienced operators Config Menu Password ___ At the prompt enter...

Page 44: ...rs displayed as the pound sign 3 8 2 2 3 RF PA Power Input Test Test Menu Pwr Input Test The main module s transmit power may be set to 1 W to test the RF PA subassembly s power input protection circuit 3 8 2 3 Noise Squelch Settings Display Menu Config Menu Display Sq On Off This configuration field controls display of the noise squelch field in the settings menu 3 8 2 4 Guard Module Enable Confi...

Page 45: ...ws copying of channel and configuration data from the source transceiver to the destination transceiver over a data transfer cable connected to another NPX136D To use this feature connect the data transfer cable to a 28 Vdc power supply Connect one of the cable s 25 pin dmin connectors to the source transceiver s J1 connector and the cable s other 25 pin dmin connector to the destination transceiv...

Page 46: ...e the and buttons move the editing cursor left and right the up arrow inserts a space in the number and the down arrow deletes a single number or character 3 9 1 Call Menu for Analog Channels The analog call menu allows DTMF sequences to be transmitted The DTMF sequences may be added as new New Number redialled from previously transmitted sequences Redial Number or recalled from the memory Find Nu...

Page 47: ...the redial number menu press Enter Redial Number R01 123456789 Use the up and down arrows to find the required previously sent number If no sequence has been transmitted the message Empty List is shown Press Enter to advance to the next screen Fn Send ADD Save Press Fn to transmit the DTMF sequence and be returned to the Analog Call menu Calling Press ADD to store the number in the next available ...

Page 48: ...RF signal on the list channels and the home channel When an RF signal is detected which meets the channel s squelch requirements the NPX136D stops on that channel until there is no receive or transmit for 5 seconds and then scanning is started When priority scanning the NPX136D checks for an RF signal on the priority channel and the home channel If an RF signal is detected on the home channel the ...

Page 49: ...85 4 Hz 085 YA 173 8 Hz 173 6A 88 5 Hz 088 YB 179 9 Hz 179 6B 91 5 Hz 091 ZZ 186 2 Hz 186 7Z 94 8 Hz 094 ZA 192 8 Hz 192 7A 97 4 Hz 097 ZB 203 5 Hz 203 M1 100 0 Hz 100 1Z 206 5 Hz 206 8Z 103 5 Hz 103 1A 210 7 Hz 210 M2 107 2 Hz 107 1B 218 1 Hz 218 M3 110 9 Hz 110 2Z 225 7 Hz 225 M4 114 8 Hz 114 2A 229 1 Hz 229 9Z 118 8 Hz 118 2B 233 6 Hz 233 M5 123 0 Hz 123 3Z 241 8 Hz 241 M6 127 3 Hz 127 3A 250 3...

Page 50: ... STOP MODULE COM ERROR XX MN GD MN GD Failed Communication with the main and or guard transceiver module at power up STOP EEPROM ERR REQUIRES SERVICE Failed memory test at power up MODULE COM ERROR RESETTING Failed Communication with the main or guard transceiver after power up Pri List Empty Release Scan Key No priority channel set when priority scanning turned on Scan List Empty Release Scan Key...

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