XCOM 760 Manuale utente

XCOM 760

VHF Transceiver

Hardware Revision 1.10

Software Rev. 1.20 Build 46

Installation and Users Manual

XCOM Avionics

Factory 4, No. 24 Leda Drive. Leda Business Park

Burleigh Heads, Queensland Australia 4226.

Phone +61 7 5568 7770 Fax +61 7 5568 7772

Release 1.7 © XCOM Avionics 2005 www.xcom760.com Page 2

Release 1.7 © XCOM Avionics 2005 www.xcom760.com Page 3

Table of Contents

Introduction.................................................................................................4

Features Overview ........................................................................................4

Manual Release Information ...........................................................................5

Package Contents .........................................................................................6

User Manual.................................................................................................6

Warranty Card..............................................................................................6

Description ..................................................................................................6

Front Panel Controls and Switches...................................................................7

Emergency Frequency..............................................................................7

LCD Display .................................................................................................8

TX (Transmit) Icon ..................................................................................8

RX (Receive) Icon....................................................................................8

DUAL WATCH..........................................................................................8

LOW BATT..............................................................................................8

MEM......................................................................................................8

Middle Line.............................................................................................8

Bottom line ............................................................................................8

XCOM Installation .........................................................................................9

Wiring Harness.............................................................................................9

Antennas................................................................................................... 10

Radio Frequency Hazard Information........................................................ 10

Radio Ground Strap ............................................................................... 10

Operating your XCOM Transceiver................................................................. 10

On ...................................................................................................... 10

MODE.................................................................................................. 10

MEM.................................................................................................... 11

DUAL................................................................................................... 11

Flip Flop button (Ú)............................................................................... 12

Memory Programming ................................................................................. 12

Introduction ......................................................................................... 12

Operation............................................................................................. 12

Clearing Memories................................................................................. 13

Memory Scanning ....................................................................................... 13

Introduction ......................................................................................... 13

Starting Memory Scan............................................................................ 13

Stopping Memory Scan .......................................................................... 13

Setup Options ............................................................................................ 14

Introduction ......................................................................................... 14

Operation............................................................................................. 14

Antenna Information ................................................................................... 16

Wiring Diagram – Typical Installation............................................................. 18

XCOM VHF Transceiver Specifications - Subject to Change................................ 19

Drilling Template ........................................................................................ 24

Notes........................................................................................................ 25

Warranty Card............................................................................................ 26

Release 1.7 © XCOM Avionics 2005 www.xcom760.com Page 4

Introduction

Thank you for purchasing the XCOM 760 VHF Transceiver. This manual describes

the operation and installation of the product. Should you have any questions that

are not answered in this manual, please contact XCOM Avionics in Australia on

+61 7 5568 7770 or by email to [email protected]. As this product is new, there

are continual developments and changes still being made so XCOM recommends

checking the website for the latest edition of this manual.

The XCOM 760 VHF Transceiver is the second of several innovative avionics

products to be released by XCOM Avionics. Based on the features of the very

successful Microair and Becker radios, the XCOM 760 offers many advanced

features previously only available in the more expensive brands.

Designed from the ground up in Australia, the XCOM 760 offers superior

performance under the demanding and noisy conditions experienced in many

amateur built and light sport aircraft. With low power consumption, this radio is

also ideally suited to use in gliders, homebuilts and ultralights.

A full 6 watt carrier output ensures that you will be heard above the general chatter

in busy airspace and the voice-activated (vox) intercom with muting music input

will enhance your enjoyment of the flight. With expanded receive frequency range

up to 163 MHz. the XCOM 760 provides NOAA weather reception, ensuring that you

are always aware of impending weather conditions (NOAA weather only operates in

the USA), and will have an optional MARS/CAP capability to be introduced in future

releases.

Additional safety enhancements, such as dual watch, allow the pilot to listen to the

standby frequency while still monitoring the primary frequency. The XCOM 760 also

has 99 memory channels, large volume and channel selector knobs and well spaced

buttons. This radio is extremely easy to operate, even when wearing flight gloves,

and you can even check the condition of your battery with the built in voltage

monitor. Even at voltages as low as 10 volts, the XCOM 760 is capable of delivering

2 watts of carrier with full modulation.

Software update capability and Internet downloads mean that you are always

provided with the latest features.

Features Overview

•Digital volume and squelch controls on front panel

•Digital volume and vox intercom controls on front panel (same volume

squelch control, but activated by mode button when required).

•2 place voice activated intercom, with pilot over-ride and passenger (pax)

isolate (pax can listen to cd music while pilot listens to com). Dual mode input

line for cd or second com input. Cd music has auto fade, turns off if com is

receiving and reduces in volume if pilot or pax talk.

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•Remote toggle (toggle active or standby or scroll memory channels via a push

button on the stick – only available when copilot PTT is not used)

•Transmitter (TX) timeout (stuck mic) which turns off transmitter after 30

seconds (user adjustable). TX is re-enabled by releasing and re-pressing PTT.

•99 memory channels (10 NOAA, 1 priority 121.500 and 88 user defined

memory channels).

•Memory channels scanning.

•10 preset NOAA weather channels (suitable for USA only)

•Dual Watch - allows monitoring of the active frequency while listening on the

standby frequency. The active frequency has priority.

•User enabled wide receive mode - allows monitoring of the VOR frequencies

between 108 and 118 MHz., the normal airband up to 137 MHz. and then up

to 163 MHz., in 25 kHz. steps. All frequencies, when enabled, can be stored in

memory channels.

•RS232 interface allowing control of radio functions and programming of

memories. Future revisions may allow upgrade of the internal firmware via

internet download. (This feature to be introduced during 2005/6)

•Low battery alert with user selectable alert levels for under voltage (default is

10.5 vdc.) and over voltage (default is 14.5 vdc.)

•Optional MARS / CAP capability (special order to be introduced during 2005/6

subject to FCC approvals)

XCOM Avionics reserves the right to update this manual as product enhancements

are made throughout the life of this product. The actual release number of this

manual is printed on the bottom of the pages for easy reference and the latest

version can always be downloaded from the XCOM web site.

Please note that this manual is accurate for the software version denoted on the

front cover page. Features may vary between software versions and some features

may not be available in all XCOM radios.

Manual Release Information

Release Date Changes

1.0 January 04 Original draft of document

1.1 May 04 Release of manual to public

1.2 July 04 Addition of aerial safety information re: FCC Request

1.3 July 04 Addition of certification approvals FCC and FAA

1.4 December 04 Addition of new features in manual, release Version 120 software

1.5 January 05 Fixed wrong number for Low Volts page 13

1.6 June 2005 Updated to Software version 120 build 0034

1.7 July 2005 Spelling and grammar changes

Package Contents

The XCOM 760 is packed in an anti-static bag, for electrical protection, and

enclosed in foam within a cardboard box for protection during shipping.

The boxed contents are….

•One XCOM 760 VHF transceiver

•User manual

•DB15 solder plug and plastic back shell

•Optional: If you purchased the optional wiring harness it will be included in

this package with installation instructions.

User Manual

Please read and understand this manual BEFORE attempting to install and operate

this transceiver. The XCOM VHF 760 has many advanced features which, if not

properly understood, could cause improper operation or damage to this product.

Warranty Card

Included in the rear of this manual is the warranty card. Please fill out your details

and return to the manufacturer’s address provided. Please don’t return the card to

your dealer. Alternatively you may fill in the warranty details online through the

website at http://www.xcom760.com (select warranty registration).

Description

The XCOM VHF 760 Transceiver has a 2.25” (57mm) face for fitting in a normal

aircraft small instrument hole. The case is 5.1” (129mm) long, 2.4” (61mm) wide

and 2.4” (61mm) high. The unit is secured to the aircraft dashboard by 4 screws

and is self supporting, requiring no additional supports, trays or brackets.

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Front Panel Controls and Switches

nDUAL - Press once to activate dual receive

capability. The DUAL WATCH icon will be

illuminated in the LCD Screen. Press again to

de-activate.

oON - Press for 1 second to turn the

transceiver on. Depress for 2 seconds to turn

the unit off.

pMODE - Activates the various different

modes. See mode section below.

qMEM - Accesses the 99 memory locations.

See memory operation sections below.

rFlip Flop (Transfer) Press to transfer the

bottom line to the top and vice-versa. The top

frequency is the active transmit channel and

the bottom line is the standby frequency. (The

radio will not transmit on either the weather or

extended receive channels.) Also used as

escape from other screens.

sVOL/SQH - Default is transceiver volume.

Rotate the control to adjust the level

between 0 and 63. The default for normal

operation is 50.

To activate the squelch, press the knob in once

and the word will be displayed.

Rotate the control to the left to decrease and

open the squelch. Rotate to the right to

increase and close the squelch. Squelch values

range from 0 to 63 with the default for normal

operation around 30. After 3 seconds of no

activity the control reverts back to volume and

the screen returns to default. These controls

also adjust the intercom squelch and volume

when using the mode buttons as described

below.

tF/CH This control adjusts the standby

frequency. In normal use, rotating the control

adjusts the MHz. value. Press the control to

adjust the kHz. value. After 3 seconds of

inactivity the control will revert to MHz.

adjustment. See AdjAct section on page 14 for

additional information.

Emergency Frequency – Press both sand t

buttons together and you will automatically

activate the emergency frequency 121.5 –

press the flip/flop to exit.

Release 1.7 © XCOM Avionics 2005 www.xcom760.com Page 7

The rear of the radio has

nRS232 Port for future programming,

interface with external systems and

additional external control over the radio

oDB15 pin plug for connection of the

wiring harness

pBNC fitting for the antenna connection

LCD Display

TX (Transmit) Icon indicates that the

unit is transmitting. Note that after 30

seconds (default timeout) the unit will

automatically cease transmitting to

guard against a stuck or faulty PTT

switch.

RX (Receive) Icon indicates that a

signal is being received. Note that if the

squelch is fully opened (set at 0) then

the unit will continually receive either a

weak background signal or noise.

DUAL WATCH Lights up when the dual

watch button function is activated

LOW BATT indicates that the battery

voltage is low. A flashing icon indicates

that an over voltage situation exists.

MEM Indicates functions of the memory

modes. Please see below for additional

explanation.

Middle Line Displays the active

frequency

Bottom line Displays the standby

frequency and other status text.

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Release 1.7 © XCOM Avionics 2005 www.xcom760.com Page 9

XCOM Installation

The XCOM 760 VHF Transceiver installation is straight forward and requires no

special skills. However installation of the wiring harness should be undertaken by a

suitably qualified person with the appropriate skills and test equipment. It is our

recommendation that installers purchase the factory manufactured wiring harness

or that owners have a local avionics repair or maintenance facility install the XCOM

760 for you.

When positioning the radio, ensure that the controls are within easy reach of the

pilot and in a suitable viewing angle when the pilot is sitting and secured in the

pilot’s seat. To mount the radio, position the supplied template on your panel and,

when satisfied with the location, drill and cut through the template in the marked

positions. The face hole is a standard 2.25” inches and the 4 securing holes are

drilled 5/32”.

Please check behind your panel for other components which may be damaged

during drilling.

The radio is mounted by insertion into the panel from the rear and is secured in

place by the 4 mounting screws supplied. Replacement screws are #6-32, 1/2“

long. Do not use longer screws as these may contact internal components and

cause damage to the unit.

Wiring Harness

The wiring harness is the most critical part of the installation and is where most

customers have difficulty. If you are unsure of how to complete this task, please

seek the advice of a qualified person or have the unit installed professionally. To

assist with installation, custom harnesses may be ordered direct from the

manufacturer.

If you decide to manufacture your own harness, please refer to the web site for

advice, techniques and wiring diagrams to assist you.

The following are some basic tips to get you started:

•Use aircraft quality Tefzel wire. This wire is specially manufactured for use in

aircraft with high quality insulation which will not create harmful vapors in the

event of a fire.

•Use 18 gauge (AWG) wire for all power supply connections

•Use wide braided wire for the grounding strap connected to the unit case

•Other wires should be 22 gauge.

•The antenna lead-in wire should be made from 50 ohm coaxial cable.

•Use high quality switches for toggle and PTT

•Use aviation quality headset and mike jacks (these are available from most

aviation suppliers or from our web site).

Antennas

Correct operation of the transceiver requires a properly installed antenna suitable

for the frequency range from 118 to 137 MHz. On any new radio (or antenna)

installation, the VSWR of the aerial should be checked. The antenna VSWR should

preferably be no higher than 1.5:1 at the center of the aircraft COM band (127.2

MHz.). While no damage to the transceiver will occur with VSWR’s of 3:1, some

degradation in performance must be expected. There is more information on

antennas in the rear of this manual and on our website.

Radio Frequency Hazard Information

Regulations require a safe working distance between the pilot, copilot, passengers,

or the general public of at least 68 cm (27 inches) from the antenna location. If an

antenna gain of greater than 5.6 dBi is to be used, the antenna manufacturer

should be contacted to determine the minimum safe distance.

Radio Ground Strap

To prevent RF leakage into the radio, ensure that the radio chassis is well

grounded. Use a wide braided wire for the ground strap connected to the unit case

to ensure that a wide band of RF is grounded, which will prevent RF feedback from

entering the radio and causing squeals or other noise when transmitting.

Operating your XCOM Transceiver

On - To switch the unit on simply depress the ON button for one second. To switch

the unit off, hold the button in for 2 seconds. When power is applied, the

transceiver will start up in whatever mode it was in when power was last removed.

That is, if the unit was turned on when the power was removed, by turning off the

aircraft avionics or master switch, then when power is restored, the unit will again

switch on. If the unit was turned off when the power was removed, then the unit

will remain off when power is re-applied.

MODE - This is the main menu button for selecting various user options and for

displaying the voltage. Mode selections are cycled by depressing the MODE button

momentarily. To return to standard operation, press the Flip/Flop (Ú)button.

There are 6 Modes:

IntVol Intercom Volume. Rotating the VOL/SQH control will increase or

decrease the intercom volume.

IntSQH Intercom Squelch Rotating the VOL/SQH control will increase or

decrease the intercom squelch.

VoR On Receive VOR (audio only) This setting allows reception in the frequency

range 108 to 117.975 MHz. Push the F/CH knob to toggle the option

between On & Off. Rotating the F/CH knob clockwise accesses the

General Coverage option.

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