Park Air Systems Limited B6550-S2 User Manual

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PAE
T6TR
PAE T6TR TRANSCEIVER, VHF Multimode Digital Radio (MDR)
VHF 118 to 144 MHz Multimode Digital Radio (MDR)
8.33 kHz and 25 kHz channel spacing
50 W RF output power
Digital Coherent Mute (DCM) technology
Compact 2U case
Analogue and digital operation
Extensive remote control facilities
TECHNICAL INFORMATION
PAE T6TR TRANSCEIVER, VHF Multimode Digital Radio (MDR)
Park Air Systems reserves the right to amend specifications in the light of continuing development - 042-2
A subsidiary of Northrop Grumman Corporation
GENERAL
Frequency range:
118 to 136.975 MHz
Option 1
118 to 143.975 MHz
Channel spacing - AM
8.33 kHz and 25 kHz
Modes:
A3E AM-voice
Options
AM-MSK
VDL-2
VDL-3
Supported standards
ICAO Annex 10
EN 301 841-1
EN 300 676
Frequency stability 
<1 ppm
Ref oscillator adjust
From front panel rotary encoder
Duty cycle
100% continuous transmit
Operating temperature
-20 to +55°C
Storage temperature
-30 to +70°C
Housing:
19” cabinet
Option
Desk mount
Power consumption:
ac dc
Transmit
330 VA  10 A
Receive
70 VA
1.4 A
Standby
45 VA
0.5 A
Supply
ac: 99 to 264 V 48 to 62 Hz
dc: 21.6 to 32 V
RECEIVE RF 
Sensitivity
-107 dBm for 10 dB (S+N)/N
Selectivity:
8.33 kHz
<6 dB at ±3.5 kHz
>70 dB at ±8.33 kHz
>80 dB at ±25 kHz
25 kHz
<6 dB at ±11 kHz
>80 dB at ±25 kHz
Squelch
Threshold adjustable in 1 dB steps 
for RF input levels from –114 dBm 
to –60 dBm (<6 to >30 dB (S+N)/N). 
Incorporates Digital Coherent Mute 
(DCM) technology to dynamically 
filter on-channel interference. DCM 
automatically mitigates co-location
interference to ensure the squelch 
opens whenever an input 
signal exceeds the set threshold 
and has a positive (S+N)/N ratio
AGC RF
<3 dB change in audio output for 
RF signals between –107 dBm 
and +10 dBm
AGC audio
<1 dB change in audio output for 
modulation depth change between 
90% and 30%. Automatically 
maintains audio at the 90% 
modulation equivalent level for 
maximum fidelity
Antenna radiation
<-73 dBm
TRANSMIT RF
Carrier power
5 to 50 W in 1 W steps
Modulation  
0 to 100% in 1% steps
VSWR mismatch
Full power into VSWR of 2.5:1
Infinite VSWR without damage
Harmonic outputs
<-36 dBm
Spurious outputs
<-46 dBm
VOGAD
<10% change in modulation depth 
for 30 dB change in input level
Tx mute
5 dB below VOGAD threshold
Time out
Off, or 2 s to 510 s in 2 s steps
AUDIO CHARACTERISTICS
Audio distortion
<5% THD
Audio bandwidth:
8.33 kHz
350 Hz to 2500 Hz
25 kHz
300 Hz to 3400 Hz
Audio interface:
Line output
-30 dBm to +10 dBm in 1 dB steps
Line input
-40 dBm to 0 dBm in 1 dB steps
Loudspeaker
1 W
External speaker
3 Vac peak-to-peak
Tape
-10 dBm
MECHANICAL
Dimensions (mm)
89(H) x 483(W) x 450(D)
Weight
14.5 kg
RF connectors
N-type sockets
ORDERING INFORMATION
T6TR
Part No. B6550
Option 1
(extended frequency range)
Part No. 6550OPT1
Desk mount kit
Part No. 70-6550DESK
User guide
Part No. 31-360000TR
Microphone
Part No. 24-11030301
Headset/microphone
Part No. 24-12002801
End-fed dipole antenna
Part No. B2080
CONTROL
Control and monitoring of the T6TR can be carried out locally
from the front panel, or remotely via a RS422 serial port
Pre-set channels
100
Channel settings
Frequency, channel spacing, 
memory assignment
Operation settings
Includes mode, TX power, 
modulation depth, squelch 
defeat/level, PTT time out
Installation settings
Includes audio line levels, 
PTT/mute level/polarity, reference 
oscillator frequency
Local control facilities
Rotary encoder and backlit 
multifunction display provide 
menu driven control of all 
transceiver operating parameters 
and BIT functions
LED indicators for standby, ready,
alarm, receive and transmit
Mic/headset/diagnostic port for 
local operation and programming 
from computer via RS232 
serial link
Coaxial connector for monitoring 
reference oscillator frequency
Remote control ports
Facilities: Audio, control and BIT for 
AM operation
MARC: RS422 serial port for 
control of radio from MARC or 
other compatible system
HDLC: Serial interface for VDL 
operation
T1: For connection to Remote
Interface Unit for VDL operation
Park Air Systems Ltd, Northfields, Market Deeping, Peterborough, England, PE6 8UE
Tel: +44 1778 345434  Fax: +44 1778 342877  Email: sales@parkairsystems.com
www.parkairsystems.com
The PAE T6TR TRANSCEIVER
for advanced airspace communications