ZAON PCAS XRX User manual

pcas
Portable Collision
Avoidance Systems
Owner’s Manual
PCAS XRX
September 2008

Customer Servi e 800-496-9430 |www.zaon.aero
ii
Portable Collision Avoidan e System™(PCAS™)
Model XRX™Owner’s Manual
Copyright © 2005-2008 Zaon Flight Systems, In ., Addison, Texas, USA
Part number 3000-9101 Rev 9/08
Printed in the USA
Versions
Manual Version 3.0
Firmware Version 2.0 and prior
No part of the en losed manual may be reprodu ed, stored for retrieval, nor transmitted or re orded in any form by any means in luding, but not limited to,
ele troni , me hani al, digital or analog, without the prior express written permission of Zaon Flight Systems, In . All trademarks ontained herein are owned by Zaon
Flight Systems, in luding, but not limited to, XRX™, PCAS™ and Bubble of Awareness™. Every effort has been made to make the en losed manual as omplete and
a urate as possible, but no warranty of any kind whatsoever is implied. The manual is for informational use only. Zaon Flight Systems, In . assumes no responsibility
or liability for any errors or ina ura ies that may appear in the en losed manual.

Owner’s Manual |PCAS XRX
CONTENTS iii
Table of Contents
1 Introduction
Thank You . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Cautions & Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Manual/Unit Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
3 Setup
Step-by-Step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
XRX At-A-Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Placement Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Keeping Clear of Obstructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Rubber Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
elcro® Mounting Tabs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Connecting the Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Connecting to Permanent/Hardwired Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Connecting the Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Standard Headset-Direct™ Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
In-cabin Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Testing the Audio Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Headset Adaptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Configuring the Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Direct Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Initial Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Pressurized Aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Controls & Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Carry Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
11 Understanding PCAS
What is PCAS? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
What does XRX show? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
The Detection Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
The Traffic Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Screen A & B Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Target Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Screen B Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Customer Service 800-496-9430 |www.zaon.aero
CONTENTSiv
Screen A Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Vertical Trend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Local Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Ground Mode vs. Flight Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Threat Prioritizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
esolution & Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Traffic Advisories and Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
How does X X work? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
How is direction obtained? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
The Importance of elative Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Built-in Compass for elative Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Built-in Altimeter for elative Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
How altitude is accurately determined inside a cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
What does X X detect exactly? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Example Flight Scenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Example 1: A Single Aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Example 2: Prioritizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Example 3: Prioritizing Close Altitudes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Example 4: Same Altitude for Multiple Aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
31 Strengths and Limitations
Strengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Ground ADA and TCAS Network Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Zero False Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
X X Cannot Detect All Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
ealistic Detection Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Cones of Confusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
North Turning Compass Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Visually Identifying Aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
ecognition & eaction Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
36 Buttons and Functions
Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Hierarchy and Selecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Menu 1: Aircraft Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Menu 2: ange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Menu 3: Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Menu 4: Third-Party Communications Setup (Com) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Menu 5: Screen Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Additional Menus: Administrative Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

O ner’s Manual |PCAS XRX
CONTENTS v
Menu Hierarchy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Page 1: Compass Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Page 2: General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
System Audio Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Page 3: Altimeter Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Saving the Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
48 Frequently Asked Questions
52 Troubleshooting
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Traffic Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
A Note About ATC Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
56 Appendices
Appendix A: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Appendix B: Configuration Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Appendix C: Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Online Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Personal Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Appendix D: Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Upgrading the Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Firmware Change History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
ersion 2.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Appendix E: Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Three-Year Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
To Return Your Unit For Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
To Return Your Unit For A Refund . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Register Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Appendix F: Installation and FAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Usage Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
FAA Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Audio Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Appendix G: Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
FCC Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Canadian Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
European Economic Community Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
68 Index
Table Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
My Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Customer Service 800-496-9430 |www.zaon.aero
CONTENTSvi
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Owner’s Manual |PCAS XRX
INTRODUCTION 1
Introduction
Thank You
Congratulat ons on your purchase of the Zaon XRX. Th s un t ncorporates fourth-generat on PCAS technology n a
compact feature-f lled un t. PCAS, or Portable Coll s on Avo dance System, s the technology developed exclus vely by
Zaon Fl ght Systems that makes th s un t poss ble.
XRX offers many other nnovat ve elements, and f rst-t me users may encounter a sl ght learn ng curve. Every effort has
been afforded to prov de a conc se manual w th clear, comprehens ve explanat ons of all features.
We are pleased to offer you the latest n av on cs technology, des gned for your personal protect on. After read ng the
manual through, we look forward to hear ng from you should you have any quest ons or concerns.
S ncerely,
Zaon Fl ght Systems, Inc.
Av on cs Research & Development
Terminology
The follow ng term nology s used n th s manual, support ng and supplementary documentat on, and throughout
Zaon documentat on and web-based med a.
PCAS Portable Coll s on Avo dance System(s). Refers to the general technology developed to make coll s on avo d-
ance portable. May nclude one or more spec f c models ( e: XRX and/or MRX, etc.). Th s technology was
developed exclus vely by Zaon Fl ght Systems.
XRX A spec f c model of PCAS technology w th a spec f c set of ab l t es.
TCAS Traff c alert and Coll s on Avo dance System(s). Refers to the act ve traff c system used pr mar ly by a rl ners.
The system s ndependent of ATC or ground RADAR
Please read through this manual in its entirety and completely
familiarize yourself with XRX features before operating the unit.

Customer Service 800-496-9430 |www.zao .aero
INTRODUCTION2
Cautio s & War i gs
As with all collisio avoida ce devices, XRX may ot detect all aircraft withi the detectio wi dow.
>R is not recommended as a substitute for proper traffic scanning procedures as listed in the FAA Airman’s
Information Manual and under the “See and Avoid” concept presented in FAA AC90-48C. This unit is intended as
an additional tool in determining potential traffic threats.
>NEVER operate the unit with a headset, or any other audio components, at high-volume levels. Hearing experts
advise against continuous high-volume operation. Should you experience a ringing in your ears, immediately
reduce the volume level or discontinue use.
>Until you are familiar with the operations and limitations of this unit, abrupt changes in the control of the aircraft
should be avoided unless positive identification with the traffic is made, or you have been ordered to do so by
the Air Traffic Controller. The FAA, their representatives, as well as published airspace regulations, always super-
sede any indication given by this unit.
>NEVER connect unit to an AC outlet. This may pose a fire hazard or result in an electric shock. NEVER connect the
unit to a power source of more than 40V DC. Such a connection will harm the receiver and poses a fire hazard.
NEVER connect a non-fused, external power source to the unit. This may result in damage to the unit and may
pose a fire hazard. DO NOT connect the unit to any power source using reverse polarity. Doing so may also
damage the unit. Follow the guidelines in this manual explicitly when connecting to an external power source.
>NEVER expose the unit to rain, snow or any liquid. Avoid placing the receiver in excessively dusty, hot, or cold
environments. DO NOT use or place unit in areas with temperatures below -20°C (-4°F) or above +55°C (130°F).
>AVOID the use of chemical agents such as benzene or alcohol when cleaning, as they damage the unit surfaces.
Ma ual/U it Differe ces
Illustratio s: The photos and illustrations in this manual may vary slightly from your unit. These differences are
aesthetic only and should not change the functionality of your unit. From time to time, slight modifications are made
for any number of reasons, and Zaon reserves the right to make these modifications without prior notification to
customers.
Ma ual:The information contained in this manual, including numbers and figures, are subject to change without prior
notice.
The latest manual will be available online at www.zao .aero for downloading if revisions are issued. Refer to the
version numbers inside the front cover of this manual.

Owner’s Manual |PCAS XRX
SETUP 3
Setup
XRX At-A-Glance
>“3-D” view Qu dr nt Direction, 45° increments
>Digit l r nge, sc l ble from 6NM to 1NM
>Rel tive ltitude, sc l ble from ±2500 ft to
±500 ft, with scending/descending indic tor
>Multiple tr ffic inform tion
>Menu-driven interf ce, with select ble ircr ft
profiles nd dv nced c libr tion options
>A built-in ltimeter, built-in comp ss, nd
built-in turn/b nk sensor, nd intern l
thermometer provide the highest, re l-time
ccur cy v il ble
>Displ ys the loc l squ wk code, ltitude, b nk ngle, be ring nd temper ture
>Audio voice lerts for thre ts nd dvisories re included, with both He dset-Direct™ hookup nd
in-c bin output, s well s RS-232 out for integr tion with other systems.
Qu dr nt Be ring rel tive ltitude + trend digit l r nge
Step-by-Step
1 > Unp ck unit nd ccessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .p ge 4
2 > Register your unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .p ge 63
3 > Determine pl cement nd c ble routing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p ge 4
4 > Set configur tion switches, if necess ry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p ge 7, 9, 58
5 > Hookup power nd udio (option l). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p ge 5 - 7
6 > Pl ce unit nd turn on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p ge 4 - 5, 10

Customer Service 800-496-9430 |www.zaon.aero
SETUP4
Unpacking
Your R system contains everything you need for basic operation right out of the box. If any listed items are missing,
please contact Zaon directly for replacement (see page xx, “Appendix C: Customer Service”).
Description Page
A > PCAS R unit 10
B>Carrying Case 10
C > Power adapter 5-6
D>Audio cable 6-7
E > Velcro® Mounting Dots (4) 5
F>Silicone Feet 5
G > Owner’s Manual —
Registration Card 61
Quick Guide —
Placement Considerations
The preferred placement for R is on the glareshield, above the
instrument panel. This configuration affords R the best possible
sensitivity and accuracy. Also, position the unit close enough to
your power source and to your audio headset connection, if you
are going to hook up audio, to allow for proper hookup.
Cable Routing
When routing the cable, place the cable as close to the glareshield as possible. Ensure no cabling reaches higher than
the base of the antenna array. Avoid loops in the wire that may obstruct the R antenna array view.
6”+
Improper positioning of XRX on the instrument panel can result in errors
in bearing.
A
B
G
DCEF

Owner’s Manual |PCAS XRX
SETUP 5
Keeping Clear of Obstructions
XRX needs an approximately 6” clear area around the antenna
array with no o structions to ensure the est sensitivity. This
includes the magnetic compass, which must e at least 5” away
from XRX for mutual cali ration. This also includes the windscreen
center pillar, GPS antennas, satellite weather antenna (especially
those with a magnetic mount), etc. Adhering to this rule will avoid
potential magnetic interference and provide the XRX antenna
array with adequate reception.
Rubber Feet
The PCAS unit must e set on your glareshield in a stance as close to
level as possi le. For your convenience, different sized silicone feet
are provided in 1/4”, 3/8” and 5/8” heights. This setup allows for a
stance from level (using all four 1/4” feet) to a maximum of 3/8” differ-
ential using 1/4” feet on the front, and 5/8” feet in the ack. These feet
provide exceptional slip resistance on non-fa ric glare-shields.
Please ensure the unit is level to the normal cruise attitude of the
aircraft. If not, compass accuracy could e affected.
Velcro® Mounting Tabs
If additional slip resistance is required, or you are placing PCAS on a fa ric-covered glare shield, use the four Velcro®
mounting ta s to secure the unit to your glare shield, allowing for quick removal.
Connecting the Power
XRX is powered through your aircraft’s “cigar-
lighter” outlet*, using the included power
adapter. The adapter provided with your unit
incorporates a uilt-in replacea le fuse for
safety, and can handle etween 12-40 volts DC.
The adapter is sensitive to proper polarity, ut just in case of improper polarity, XRX is protected against reverse polarity.
The connector is tip-positive (+) and outside negative (-) and should only e used in negative-ground systems. Please
consult your aircraft manual if you are unsure of your type of aircraft electrical system.
* Pilots flying newer Cessna models that do not have a cigar lighter outlet should call Zaon for alternative connections.
6”
6”
6”
Power Outlet
Power Indicator2.35mm Plug
Fuse (Internal)
Use of XRX in an automobile will result in inaccurate compass and traffic
bearing. This is caused by the ferrous materials in the car’s frame.

Customer Service 800-496-9430 |www.zaon.aero
SETUP6
To replace the internal fuse:
1 > Disconnect both ends of the adapter
2 > Twist off the knurled end cap
3 > Replace the fuse with a 1- to 3-amp rated automobile-style quick-blow fuse
4 > Twist the knurled cap back into place
Connecting to Permanent/Hardwired Power
In some instances, you may wish to power the unit directly from the avionics bus or other power source. Hardwiring
the power supply will require a dedicated 1.0 amp minimum, in-line fuse. An internal line filter suppresses any undue
transient noise on the power supply. Also, be sure to follow any FAA requirements concerning installation guidelines.
Connecting the Audio
XRX incorporates two different audio methods: In-cabin audio (an internal audible tone generator) and female voice
announcements over the Headset-Direct™ connection.
Standard Headset-Direct Configuration
our XRX comes with everything necessary to operate right out of the box, including the audio hookup cabling. To
properly integrate the female voice audio alerts with that of your aircraft’s system, use the included audio cable
assembly. This configuration introduces the XRX voice alerts onto the intercom headset line. With this hookup, the
voice alerts do not interfere with intercom transmissions or passenger audio, and maintains the original quality of your
intercom system.
The red 1/8” connector on the back of the unit is Audio IN; the white 1/8” connector is Audio OUT.
Microphone Plug
Headset
Audio OUT
White connector
Audio IN
Red connector
If one or both of the audio connectors becomes partially or fully
disconnected, no audio will be heard, including intercom audio.

O ner’s Manual |PCAS XRX
SETUP 7
In-cabin Audio
XRX incorporates an internal audi le tone generator which
can alert oth the pilot and passengers of traffic threats
and advisories. No external hookup is needed to take
advantage of these audio cues. To turn this feature on or
off, set Switch 6 in group A of the configuration switches to
“ON” (see “Configuring the Audio” in the next section).
Headset Adapters
The audio ca le included with your unit works with GA-style connections with a separate 1/4” headset jack and 1/4”
mini microphone jack. If your audio system is different from the standard GA configuration, several optional accessories
are availa le to facilitate audio hookup, including Adapters for Bose® all-in-one connectors and U174 Helicopter-style
plugs. To purchase, visit Zaon’s we site, call us directly, or ask your local avionics shop.
Configuring the Audio
Because so many different types of intercoms exist, there
are many different com inations of audio options. To
allow XRX to correctly interface your audio system, you
will need to configure your unit. On the ottom rear of
the unit, a small hatch reveals two groups of switches. To
remove the hatch cover, use a small Phillips screwdriver to remove the retainer screw. To configure audio, change the
settings of the switches in Group A. See “Configuration Switches” in the Appendices for more information.
The three options of audio configuration possi le with XRX are impedance, mono/stereo selectivity, and ground isola-
tion. If you are unsure of your aircraft’s particulars, read the hints elow for each category.
ON
12 45678
ON
12 45678
To turn In-Cabin audio on
or off, set Switch 6, Group
A of the configuration
switches.
Testing the Audio Output
To test the audio output of the XRX system, press the up or down arrow at the traffic page. You ill hear the
In-Cabin beep, follo ed by the voice annunciation “Test” from the audio cable. You may perform this step
as many times as necessary to hear the test audio at louder or softer volumes. Your headset must e hooked
up in order to hear the voice annunciation.
The audio test can also e performed through the General Information page in the Administrative menus. For
more information, see “Additional Menus: Administrative Mode” in the “Buttons and Functions” chapter.
Rear of unit
Configuration
Switches Hatch

Customer ervice 800-496-9430 |www.zaon.aero
SETUP8
Table A: Audio-related configuration switch settings
Important notes about audio configuration:
>If the audio level is too low or cannot be heard, try switching the impedance switch to the other setting.
>Placin both switches 2 & 3 to ON, or both to OFF may result in NO AUDIO OUTPUT. For in-cabin audio, turn
on switch 6 to enable, turn switch 6 off to disable. witches 5, 7, and 8 are not used for audio configuration.
Direct Wirin
Certain situations may benefit from an alternate audio hookup: wiring XRX directly into the aircraft system through the
intercom auxiliary input, using an 1/8” jack (stereo or mono, as compatible) from the XRX audio OUT to the intercom
AUX IN. In most cases, this will require hard-wiring and components not included with your XRX system. If your
intercom isolates the pilot audio, this configuration will allow the XRX alerts to be heard only through the pilot’s
headset. If your intercom does not isolate the pilot audio, the XRX alerts may be able to be heard through each headset
plugged into the aircraft intercom system. This is a function of the intercom or audio panel and not determined by XRX
settings.
Please refer to the wiring schematic in Appendix E if you are hard wiring the unit to your intercom or audio panel.
Antenna
XRX incorporates an internal highly-specialized directional antenna. For this reason, the unit should be placed on the
glare shield of the aircraft to properly receive signals. Any structure must be at least 6 inches away from antenna such
as a compass, portable GP , etc. Please use common sense when placing your XRX. Metallic objects very near to the
unit will affect bearing accuracy, as they would with any compass.
Option Switch 1 Switch 2* Switch 3* Switch 4 How to Determine
300 Ω Impedance ON
Check your intercom or
audio panel for the
proper impedance.
600 Ω Impedance OFF
Mono
ON OFF
When in doubt, check
your headset connector.
3 sections = stereo
tereo OFF ON
DC Ground Isolation
( tereo 2 wire)
OFF ymptoms of wrong
setting: sound too soft,
squeal or hiss, no sound
DC Ground Connection
( tereo 3 wire)
ON
BOLD indicates default settings. * witches 2 and 3 are mutually exclusive.

Owner’s Manual |PCAS XRX
SETUP 9
Initial Calibration
The comp ss within XRX is c libr ted t the f ctory, nd no ddition l c libr tions should be required under norm l
use. However, if you notice comp ss errors gre ter th n 20° when comp red to your ircr ft comp ss in str ight nd
level flight, you m y need to rec libr te the XRX comp ss. This simple procedure is expl ined on p ge 45, “Comp ss
C libr tion”.
Pressurized Aircraft
XRX c n be oper ted in pressurized ircr ft, but bec use of the intern l ltimeter, it must be set to pressurized mode.
To set the unit to pressurized mode, set Switch 5 in group A of the configur tion switches to “ON”. For more inform -
tion, see “Configur tion Switches” section in the ppendices.
Under norm l circumst nces, XRX uses the built-in
ltimeter to determine the loc l ltitude nd est blish
b se reference. The unit then comp res the ltitude of the
t rget ircr ft to this b se reference to determine the
rel tive ltitude. In pressurized ircr ft, the built-in
ltimeter is rendered ineffective since it relies on st tic
pressure re dings, s found in non-pressurized ircr ft. In
pressurized mode, the unit byp sses the built-in ltimeter nd relies on the tr nsmissions from your own tr nsponder’s
encoder to est blish the b se reference. This c n be n effective me ns of determining your own ltitude, but you
should be w re th t few limit tions exist.
If no ltitude is received from your tr nsponder, you will see “NO ALT” on the screen nd
no tr ffic will be displ yed. If this h ppens, you will need to reest blish connection
with your tr nsponder. There re few re sons why XRX m y not lw ys receive the
ltitude from your tr nsponder, including:
>Your tr nsponder is not turned on, or is on but is not in “ALT” mode, or you do not h ve
tr nsponder.
>You re below RADAR cover ge, common occur nce when on the ground t n irport, or when not in line-of-
sight of RADAR st tion, nd no other ctive system is interrog ting your tr nsponder.
>Some squ wk codes re coincident l ltitude codes. If ATC ssigns you code ending with “zero”, there is slight
ch nce XRX will not be ble to determine which code is n ltitude code nd which is squ wk code without
the id of n intern l ltimeter. To llevi te this problem if it h ppens, simply sk ATC for code not ending in
zero. For ex mple, squ wk code of 0340 is lso the s me code s 800 feet.
>The output of your tr nsponder is less th n 100 w tts or gre ter th n 250 w tts.
To use the pressurized mode, XRX requires you to have a local transponder
with a minimum output of 100 watts and a maximum of 250 watts.

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SETUP10
Controls & Functions
Description Page
1 > Directional antenna array 8
2>Power button 37
3 > Mute button 37
4>Primary Aircraft 12
5 > Secondary Aircraft #1 12
6>Secondary Aircraft #2 12
7 > Up button 37
8>Menu button 37
9 > Down button 37
10 > Volume level indicator 37
11 > Local Heading 14
12 > Local Altitude 14
13 > Power Input (12-40 VDC) 5
14 > Audio Out 7
15 > Audio In 6
16 > RS-232 Connection 42, 59
17 > Config. switches hatch 59
Carry Case
A hard carrying case is included for your R . This case is designed to carry all of your accessories and to protect your
R from damage and the elements. The carrying case is not waterproof. Care is needed when leaving the case
exposed to the elements.
To clean the carrying case, use a towel and a minor detergent solution or glass cleaner. Do not use harsh abrasives or
chemical solutions as this will damage the case.
4 5 6
10
7
8
9
16
17
2
1
3
11 12
13
14
15
Front View
Rear / Bottom View

Owner’s Manual |PCAS XRX
UNDERSTANDING PCAS 11
Understanding PCAS
What is PCAS?
PCAS, which stands for Portable Collision Avoidance System, is a trademark of Zaon Flight Systems for technology
similar in function to TCAS (Traffic and Collision Avoidance System). TCAS is the industry standard for commercial colli-
sion avoidance systems. The original PCAS technology was developed by Zaon in 1999. Now, the MRX/XRX line of colli-
sion avoidance systems incorporates the fourth generation of PCAS technology. Through this technology,
transponder-equipped aircraft are detected and ranged, and the altitude is decoded. PCAS G4 technology has
advanced to the point that highly accurate range, relative altitude, and quadrant direction can be accurately detected
in a portable, all-in-one cockpit device.
What does XRX show?
Reading your XRX is simple and straightforward if you understand the concepts behind its design and operation. XRX
operation can be broken into two areas of thought and use: traffic detection and traffic alerts. It is important to know
how to visualize the detection window around you.
The Detection Window
Traffic information takes three forms, or “dimensions”. The easiest way to understand this is to think of a target aircraft
in three dimensional space.
The first dimension is range, or how far away the aircraft is.
Imagine a sphere with your XRX-equipped aircraft in the
middle. With only range to go by, the surface area of the
sphere represents all of the possible points at which the
aircraft could be. The radius, or size, of the sphere is deter-
mined by the range, or how far away the target aircraft is.
The second dimension, relative altitude, tells us how far
above or below our horizontal plane the aircraft is. Once we
know range and relative altitude, the sphere of possible
points is reduced to a ring, positioned above us or below us,
depending on the relative altitude of the aircraft.The third
dimension is direction. Once we take the ring and add the
direction “dimension”, we’ve reduced the possible points
where a threat aircraft could be down to a point.
In other words, range, relative altitude, and direction
together can tell us the X, and Z coordinates of the threat
aircraft in three-dimensional space around us, or relative to
our position.
Floor: 0 feet
ALTITUDE
RANGE
Ceiling:
22,000 feet (FL220)
Traffic above 22,000
will not be indicated
Altitude Setting (Feet)
±2500, ±1500, ±500
Illustrations not to scale
Range Setting
(NM Radius)
6.0, 3.0, 1.5
XRX-Equipped Aircraft

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UNDERSTANDING PCAS12
The detection window surrounding your aircraft in flight can best be visualized by imagining a “Bubble of Awareness”
surrounding your aircraft. XRX will display any aircraft within this detection window. The “bubble of awareness” can be
shaped to meet the needs of your current flying situation.
The width of the bubble represents and is defined by range; the height is defined by altitude. Both the altitude limits and
range limits can be set independently of each other by the pilot.
The Traffic Screen
When XRX detects aircraft within the detection window, the following information is displayed on the traffic screen:
Screen A & B Information
1>Primary Aircraft
2> olume indicator
Screen A Only Screen B Only
3>Secondary Aircraft #1 7 > Overhead traffic view - Range setting: 6NM, 3NM, 1NM
4>Secondary Aircraft #2 8 > Your aircraft
5>Local heading 9 > Target aircraft (maximum of 3)
6>Local altitude 10 > Range setting
Target Information
A>Direction relative to your bearing: indicated by
the compass rose
B>Range in nautical miles
C>Altitude relative to your local altitude: aircraft is
above you (+) or below you (–)
D> ertical Trend: Ascending ( )or descending
()
Screen A
1 3
5 62
4
Screen B
1 8
72
10
9
Primary A/C
B
C
AD
Secondary A/C
A
B
C
D
By default, XRX is set to 3 NM and +/-- 1500 feet at startup.

Owner’s Manual |PCAS XRX
UNDERSTANDING PCAS 13
To switch between screens, press menu/select, choose Screen, then select Screen A or Screen B. Press mute to exit
to tr ffic screen (see p ge 43, “Menu 5: Screen Options” for more det ils).
Direction is indic ted through the comp ss rose for the
prim ry ircr ft, or by n rrow for second ry ircr ft (see
ch rt). It is import nt to note th t direction is not c rdin l
points (N, S, E, W) but is rel tive to your he ding. An rrow
up indic tes tr ffic is in front of you. In the ex mple shown,
the prim ry (closest) ircr ft is 2.0 NM w y, 600 feet bove
you, nd descending.
In ddition l to the four directions illus-
tr ted, 45° ngles re lso represented
for the primary ircr ft by indic ting
two djoining directions. This indic tes
n ircr ft between the front nd left of
you.
Table B: Direction Indicators
Other import nt things to know bout the tr ffic screen:
>“No tr ffic” is indic ted by bl nk re s in both the r nge nd ltitude sections of the displ y, nd no direction l
inform tion. This is true for both the prim ry tr ffic nd second ry tr ffic re s.
>Aircr ft t the s me ltitude is indic ted by “00” for the rel tive ltitude.
>In the second ry thre t positions (1 nd 2), tr ffic be ring is displ yed in 90° increments only. Only the prim ry
thre t be ring c n be shown in 45° increments.
Vertical Trend
In ddition to rel tive ltitude of the t rget ircr ft, XRX lso displ ys the vertic l trend, or if the ircr ft is climbing or
scending. Vertic l trend is indic ted by or . Monitoring the vertic l trend will ssist in deciding if the ircr ft is
thre t or not. Tr ffic th t is not climbing or descending will not indic te vertic l trend.
Aircraft is... Primary Secondary
To your left
In front of you
To your right
Behind you
Vertical trend is based on the target’s actual altitude ascent/descent rate,
not the relative altitude change rate.

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UNDERSTANDING PCAS14
Local Information
In the lower ri ht corner of the traffic screen, the local headin and local altitude are displayed.
Local altitude is displayed in fli ht levels (indicated by “FL”). The primary source for this information is the unit’s own
built-in pressure altimeter and is verified when possible by receivin what your transponder encoder is transmittin . It
is important to note the local altitude is pressure altitude, not necessarily your actual altitude. This is factory calibrated
and should not need adjustin . However, adjustments are possible usin the Admin menus, covered later in this
chapter.
The ma netic headin you are facin or travelin is also displayed, indicated by “HDG”. This information is taken from
the on-board compass and is delivered in 10° increments. To calibrate the compass, see “Calibratin the Compass”, later
in this chapter.
Ground Mode vs. Flight Mode
Like some TCAS systems, XRX ives you the option upon startup of operatin in round mode or fli ht mode. If the
unit is in Ground Mode, aircraft below you and up to 200 feet above you are i nored. This is useful when on the round
and you wish to i nore the aircraft taxiin around you in favor of detectin aircraft in the pattern or on final approach.
As soon as you climb (or descend) 200 feet, it will automatically switch to Fli ht Mode. Ground Mode reduces round
clutter, or the detection of aircraft at the airport with their transponders turned on. In Flight Mode, the unit will detect
aircraft both above and below you.
To set the unit in Ground Mode, turn the unit on and press the menu button durin the startup sequence. To set the
unit to Fli ht Mode, press the up arrow durin this sequence. If no button is pressed durin the startup sequence, the
unit will automatically default to Ground Mode after 35 seconds.
If in Ground Mode, the unit will automatically switch to Fli ht Mode once 200 feet of climb is detected from the time
you turned the unit on. If you turn on or restart the unit in Ground Mode while in fli ht, the unit will not detect aircraft
below you and up to 200 feet above you until you climb 200 feet. If this happens, restart the unit in Fli ht Mode by
turnin the unit off, then on, then pressin the up arrow instead of the menu button at the warnin screen.
If XRX is in Ground Mode, aircraft below and up to 200 feet above you
will be ignored in order to eliminate the detection of aircraft on the
ground.
Traffic may change positions on the screen as time passes and the priority of
each intruder changes.