Airport facilities and brand suppliers

TR-7750 VHF Radio

Brand: Jotron Company，Norway
Model: TR-7750，TA-7650，RA-7203
Description: “Bright Aviation” is TR-7750，TA-7650，RA-7203 VHF radio, one of the sales agents in china, and established the VHF radio simulation test and repair platform.
  • Specifications
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一、Business

“Bright Aviation” supplies complete sets of equipment, including spare parts supply, installation and commissioning, flight check, technical consultation,panel repair,factory training, after-sales service, spare parts support, equipment fault repair，periodic inspection and other businesses.

 

二、Overview

1. TR-7750，VHF Radio Transceiver,  Output power arbitrarily adjustable between 5–50 watts, operating frequency 118–137MHz, channel spacing  8.33KHz or 25KHz.

2. TA-7650，VHF Radio Transmitter,  Used as a transmitter only, arbitrarily adjustable output power between 5–50 watts, operating frequency 118–137MHz, channel spacing 8.33KHz or 25KHz，3U case.

3. RA-7203， VHF Radio Receiver, Used only as a receiver, operating frequency 118–137MHz, channel spacing 8.33KHz or 25KHz.

 

三、Appearance


1. The TR-7750 VHF transceiver consists of one transmitter module (TA-7650), one receiver module (RA-7203), and one power module (PSU-7006), as shown below.

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2. The TA-7650 VHF transmitter consists of two transmitter modules (TA-7650) and two power modules (PSU-7006), as shown below.


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3. RA-7203 VHF receiver consists of 6 receiver modules (RA-7203), as shown below.


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四、Technical Specifications

（1）General  Specifications


General  Specifications

AM 25 kHz

AM 8.33 kHz

AM MSK

D8PSK

Frequency range

118-137 MHz (118-156 MHz optional)

RF Modes

6K80A3EJN

5K00A3EJN

13KOA2D

14KOG1DE

Keying time

< 5ms

< 5ms

< 5ms

< 500uSec

Bit rate

2.4 kbit/s

Frequency response

300-3400 Hz

350-2500 Hz

Frequency stability

< 1.0 ppm.

Data ports

RS232, RS485, 10/100 BaseT.

Protocol

SNMP, RTP, TCP/IP, HTTP, TFTP, DHCP and IPv6.

BITE monitoring

VSWR，Voltages，Currents，Levels，Lock detect，Temperature，0utput power，Reflected power, a.0.

Supply voltage, AC

115/230VAC+15/-10%/50-60Hz.

Supply voltage. Dc

21.6-31.2VDC negative ground.

Start-up time

<6 sec.

MTBF

>10 years/unit.

MITR

<30 minutes at lowest replaceable unit.

 

（2）Transmitter  (TA-7650)  Specifications


Transmitter  (TA-7650)

AM 25 kHz

AM 8.33 kHz

AM MSK

D8PSK

Output power

1-50W

1-50W

1-50W

1-25W

Adjacent channel power

＞70dBc

＞60dBc

＞70dBc

＞65dBc

Modulation level

up to 95%.

Distortion

＜3%.

Line input

600Ω, （-36）-（+10）dBm.

Inter modulation  protection ratio

>40 dB when interfering signal is decoupled with at least 30 dB.

Tx timeout

15s to 5 min/1s step.

In band keying

Configurable tones: (2000-4000Hz in 1Hz step) and threshold level (-40 to -10dBm).

Carrier offset

2,3,4 or5

Differential group delay

＜60μs

Power rise and release time

＜190μs, < 300μs

System Constellation time

EVM < 3%

VSWR

1 : Infinity.

Duty cycle

100% continuous operation.

Power consumption

＜250W.

Dimension Transmitter unit

142(W) * 230(D) * 128(H)mm，Weight 3.0 kg.

Dimension PSU unit

71(W) * 303(D) * 128 (H)mm，Weight 1.3 kg.

 

（3）Receiver  (RA-7203) Specifications


Receiver  (RA-7203)

AM 25 kHz

AM 8.33 kHz

AM MSK

D8PSK

Sensitivity analogue@1μV/30% pd

10dB SINAD (CCITT)

Sensitivity VDL data @2μV/pd input

BER＜10-3

Adjacent channel rejection

＞80dB

＞70dB

＞80dB

<70db@2.ch

Intermodulation

＞80dB

＜60dB

IF bandwidth

±11kHz

±3.5kHz

±11kHz

±11kHz

Image and IF frequency response

＞110dB.

Squelch operation

Adjustable -107dBm,30dB，S/N+ carrier override，Activation time<20ms，Hysteresis <6dB.

Audio AGC

30%-90%，Variation<1dB.

Signal/ Noise

>45dB on any output@100μV,30%.

Distortion

<5% @ 90% modulation.

AGC range

-110dBm to +5dBm.

AGC attach time

＜50ms

＜40ms

AGC decay time

＜250ms

＜60μs

Differential group delay

＜60μs

Inband squelch signal

Configurable tones:100-5000Hz.

Line putout

600Ω,-40-+20dBm @90%modulation.

Harmonic distortion

<3% @90% AM (line output).

cross-modulation

>95dB @ 1MHz frequency offset.

Blocking

>100dB @ l MHz offset, >110 dB out of band signals.

Dynamic range

＞120dB.

Spurious response rejection

＞95dB.

Dimension Receiver unit

71 (W) * 230(D) * 128 (H)mm， Weight 1.7 kg.

 

（4）Standards

1. ICAO annex 10.

2. EN300 676 (AM, AM-MSK).

3. EN301 841 (VDL2 – Physical layer).

4. ED-137.

（5）Environmental

1. Temperature range: -20°C to +55°C (operating) ，-40°C to +70°C (storage)，

2. Humidity: 90% @ +40°C (non condensing)，

3. Shock: Transport: IEC-721-3-2, Class 2M3.

4. Vibration: Transport: IEC-68-2-32, Class2M3. IEC-68-2-6.

5. EMC: EN 301 489 – part 22.

6. SAFETY：IEC 60950-1,CSA-C22.2 No. 60950.


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