Park Air Systems B6100 Exhibit F sales literature

P ARK A IR E LECTRONICS T6R VHF RECEIVER

Description

Digital Multimode Receiver

P ARK A IR E LECTRONICS

F EATURES

Analogue and Digital programmable modulation modes

AM voice with 25 kHz and 8.33 kHz channel spacing

AM-MSK for Mode 1 (ACARS)

D8PSK for Mode 2 (CSMA) and Mode 3 (TDMA)

Exceptional dynamic range and co-location performance

Compact 2U high rack mounting package

Class leading RF performance

Static and dynamic BIT

The T6 Series represent the latest generation of Park Air ATC

radios which are designed for professional applications in airport

and en-route centres. The T6 Series fulfils both analogue (AM)

modulation and the future digital (D8PSK) modes, which are

being planned by ICAO. The T6 Series makes extensive use of
advanced DSP (digital signal processing) technology to enable the
transition from analogue to digital modulation modes to be made

via software upgrade. Investment in radio systems is thereby pro­tected against obsolescence as new digital modulation waveforms

are introduced.

The T6R operates in the VHF aviation band and provides both

25KHz and 8.33KHz channel spacing. A 100 channel memory is

incorporated for recall of pre-set frequency and operating modes

in multichannel applications.

All demodulation is implemented using DSP algorithms, which

provide consistent long term performance. D8PSK digital modula-

tion waveforms require high performance demodulators to

ensure reliable synchronisation and low BER (bit error rate) at

low signal levels. The T6R employs specially developed algo-

rithms allied to high performance RF circuitry to ensure optimum

performance in this critical area.

Control of receiver operating parameters can be effected locally
using a menu driven front panel LCD or remotely via serial ports
on the rear panel. All receiver adjustments are under software
control and can be accessed externally avoiding any necessity to
remove covers during the operational life of the equipment.
Should software updates be required to support new modulation
modes in the future, these can be simply effected via a front panel
diagnostic port or remotely via rear panel serial ports.

The T6R has comprehensive BIT which monitors both static
(supplies etc) and dynamic (S+N/N, etc) parameters. A novel
technique provides an accurate assessment of receiver sensitivity
using BIT. Results can be viewed on the front panel LCD and are
summarised via READY and ALARM indicators. All BIT data is
available for remote monitoring via the serial ports and receivers
can be readily networked for remote monitoring using PAE
MARC or similar systems.

The receiver is a compact 2U 19” rack mounted unit. Power can
be 110/220 VAC or 24/28 VDC, with automatic switching to DC
in the event of an AC failure. Both inputs are fully filtered and
protected.

Specification

Digital Multimode Receiver

P ARK A IR E LECTRONICS T6R VHF RECEIVER

UK HEAD OFFICE: Northfields, Market Deeping, Peterborough, PE6 8UE, England. Tel + 44 1778 345434 Fax + 44 1778 341286

USA: Tel [phone] Fax [phone] FAR EAST: Tel [phone] Fax [phone]

Email: [e-mail] Web site: www.parkair.co.uk

Park Air Electronics Ltd is a subsidiary of Northrop Grumman

P ARK A IR E LECTRONICS

General Characteristics

Frequency range:

117.975 to 136.975 MHz

Channel spacing:

25 KHz and 8.333 KHz

Programmable Channels

100

Frequency error:

±1 ppm

Modulation mode

AM voice
AM-MSK
D8PSK Mode 2 and Mode 3

Power supplies:

ac: 110/120/220/240 V (±10%),
45 to 65 Hz
<75 VA max
dc: 21.4 to 32 V <2 A

Environmental:

Operating: -20 to +55 degrees C
Storage: -30 to +70 degrees C

EMC/EMI: 89/336/EEC

Weight/Dimensions
Width: 483 mm (19 inches)
Height: 2U/89 mm (3.5 inches)
Depth: 419 mm (16.5 inches)
Weight: 6kg

RF Characteristics

Sensitivity

AM -107 dBm for 10 dB S+N/N
D8PSK -103dBm for 1x10-3BER (without FEC)

Synchronisation Probability

D8PSK 0.999 for -103 dBm signal

Selectivity

25 KHz channels
±11 KHz for 6 dB
±25 KHz for 80 dB

8.33 KHz channels
±3.5 KHz for 6 dB
±8.33 KHz for 70 dB

Spurious signal suppression

<2 MHz from carrier -80 dB
>2 MHz from carrier -100 dB

Intermodulation

>75 dB for signals >100 KHz from carrier

Cross Modulation

-10 dBm for signals >1% from carrier

Modulation Characteristics (AM)

Response 25KHz channel spacing:

300 Hz to 3.4 KHz ±3 dB ref 1 KHz
>20 dB attenuation at 100 Hz
>30 dB attenuation at 5 KHz

Response 8.33KHz channel spacing:

350 Hz to 2.5KHz ±3 dB ref 1 KHz
>20 dB attenuation at 100 Hz
>25 dB attenuation at 5 KHz

Distortion:

<5% THD at 80% modulation

AGC:

<3 dB change in audio output for RF signals between ­107 dBm and +10 dBm
<1 dB change in audio output for modulation depth
change between 30% and 90%

Mute:

Noise compensated, range <6 to >16 dB S+N/N

Audio outputs

600 ohm balanced line adjustable -20 dBm
to +10 dBm
Front panel loudspeaker 1 W nominal

Front Panel Facilities:

A rotary encoder and back lit 4-line LCD provide simple
menu driven control of all receiver operating parame­ters and BIT functions
LED indicators for standby, ready, alarm and receive
Combined headphone and diagnostic port connector
Recessed co-axial connector for monitoring internal ref­erence oscillator
Loudspeaker

Rear Panel Facilities:

Antenna: N-type female connector

Supply connectors

ac and dc supply connectors with associated fuses

Facilities connector

15-way D-type includes audio, control, and BIT con­nections

Data connector

25-way D-type used to link receiver to control comput­er when operating in digital modes. Provides two
RS422 synchronous HDLC interfaces for status/ control
and transmission data plus real time data and timing for
TDMA. Message protocol and packet structures con­form to ICAO/VDL SARPS requirements.

MARC connector

9-way D-type provides independent connection of
audio/serial control data to MARC remote control and
monitoring systems.