Nat NPX136D Series User manual

NAT NPX136D

P25 Aviation Radio Training,
Introduction to the
NPX136D-070 P25 Digital Airborne Radio
Presented by
National Interagency Fire Center,
Edmo Distributors Inc. and
Northern Airborne Technology Ltd.
March 10-14, 2008
Oxford Suites Hotel, Boise, Idaho
Cover Slide

Introduction
The NPX136D panel mount P25
VHF transceiver is a stand-alone
radio designed for aircraft and
operated by a single mission
user. It provides all the features
needed to satisfy
communications within the VHF
high band.
VHF P25, Panel Mount Transceiver
S/W Ver: X.XX
Checking Modules

Introduction
VHF P25, Panel Mount Transceiver
S/W Ver: X.XX
Checking Modules
Introduction to the NPX136D P25 Digital Airborne Radio
NAT will be providing a 3-4 hour session on features, operation,
functionality, programming and maintenance of the company’s NPX136D
P25 Digital Airborne Radio. The lightweight and compact design is a
perfect fit for the space and weight restricted cockpit of helicopters and
light fixed-wing aircraft. Operational modes for the radio include Analog
Simplex/Semi-Duplex and Digital P25. The NPX136D has been tested
and accepted by NIFC/USFS as a ‘fire approved’ radio.

Introduction (Cont’)
People familiar with VHF FM Radio operation in an aircraft and with an
understanding of the terms used with the digital modulation of the P25
Common Air Interface
Intended Audience
Training Schedule
13:30 Slide Show Presentation. (~20 minutes)
14:00 Radio Demonstration. (~10 minutes)
14:10 Hands on operation of (~1-3 hours, depending on group size)
-Front Panel Controls
- Main Frequency Editing
- Guard Frequency Editing
- Maintenance
- PC Application Installation and Operation
-Channel Loading into Radio

Aircraft Operation Block Diagram
HANDHELD VHF
REPEATER
MOUNTAIN
AIRCRAFT
Simplex
(DIRECT)
VHF CHANNEL
Duplex
(REPEATER)
VHF CHANNEL
Overview

Equipment Block Diagram
ICS, AUDIO PANEL
RX / TX AUDIO, KEYLINE
+28 VDC LIGHTS
PHONES/
MIC
AUDIO
KEYLINE
RF
+28 VDC POWER
H/S
Overview
ANTENNA

- Analog FM 25 kHz, 12.5 kHz and digital C4FM 12.5 kHz channels.
- Two channel synthesized guard receiver
-Multiple scan modes
-Agile operation
-Encryption capable
-Modular construction
-DTMF generation
- Dzus panel mount. 2 5/8 in. height.
-Control operation similar to other products from NAT
Features

Power +28 Vdc ( Transmit: 2.6 A max.)
Lights +28 Vdc, 300 mA max.
Frequency Range 136.0000 -173.9975 MHz
Operating Modes Project 25 and Analog Simplex or Semi-Duplex
Channels 255 max. (main) (Zones: 16 max.)
Plus two guard channels
Analogue Tones CTCSS - 42 tones from 67.0 to 254.8 Hz
CDCSS -83 data patterns
Remote Interface RS232C Serial Data Bus
RF Impedance 50 ohms
Channel Increments 2.5 / 6.25 kHz
Channel Bandwidth 12.5 / 25 kHz
Scan Capability 16 channels max. 1 home, 1 priority, 14 list,
8 chan/sec
Audio Output Power 100 mW (600 ohms)
Guard Audio Output Power, minimum: 10 mW (adjustable)
Specifications

Carrier Output Power 1 or 10 W
Time-out Timer 30-300 s (Factory Set to 60 s)
Duty Cycle 20% (1 min Tx, 4 min Rx.)
VSWR 20:1 (30 sec duration - undamaged)
Rated Deviation ±5.0 kHz (25 kHz BW)
±2.5 kHz (12.5 kHz BW)
Audio Input Sensitivity 100 mV rms (60% of rated deviation)
Sidetone Audio Output Power:
25 mW (Adjustable)
Specifications (Cont’)
Refer to Install and Operation Manual, Description §1.4 for more details.

To turn on the radio, rotate the main (MN) knob clockwise past the OFF detent.
Refer to Operation Manual section 3.4.2
Operation, Power On

001=Abcd23Efg WSC
T:173.9975 067 LO
Display Type
Channel
Number
Scan Flag
Tone/Squelch
Flag
Frequency Tone/Squelch Number
Channel Name Modulation Type
TX Power
Refer to Operation Manual section 3.5
Operation, Display Layout

Main On/Off/Volume
Main RX/TX
Annunciator
001=ABCDEFGHI WSC
R:173.9975 067
Scan-
Normal-
Guard
Transmit
Guard
Volume
Guard
Channel
Select
Display Switch Channel Switch Squelch/Help Select Number Pushbuttons
Guard
Channel
RX/TX
Annunciator
Refer to Operation Manual section 3.4.3
Operation, Controls/Annunciators

Operation, Change Channels
002=Forestry NSC
R:173.9975 067

Operation, Squelch Disable
002=Forestry NSC
MAIN SQ DISABLED

Operation, Guard Transmit
GD1=Guard1 N
R:168.6250

Operation, Menus
Settings Menu
DsplBrt Lt On:20
Menu Keys
Refer to Operation Manual section 3.4.3.15

Operation, Menus (Cont’)
Menu Structure:
Settings Menu
Display Menu
Channel Menu
Edit Main
Edit Guard
Edit Zone
Edit Scan
Maintenance Menu
Refer to Operation Manual section 3.6-3.8

Operation, Help for Menus
HELP
text scrolls past

Channel Serial Load from PC
Using a personal computer with a
RS232 serial data connector system,
channel data can be uploaded to,
and downloaded from the NPX136D.
The NUDP NPX136D
Application runs on a PC and
can be used to enter, edit and
upload system and channel
data to the NPX136D