ngs-9 ngs-8 ngs6 ngs 5 ngs 1

Công nghệ đột phá - Dịch vụ tận tâm

0437 916 704
098 890 4299

Sản phẩm >> Máy phát hình >> Máy phát hình Harris VHF Platinum™ VAX

Máy phát hình Harris VHF Platinum™ VAX

Model

: Platinum™ VAX

Tên sản phẩm

: Máy phát hình Harris VHF Platinum™ VAX

Giá

: Call

Trạng thái

: Còn hàng

Bảo hành

: 12 tháng
  • TÍNH NĂNG
  • THÔNG SỐ KỸ THUẬT

- The Platinum™ VAX VHF air-cooled transmitter delivers the most advanced and proven VHF transmission platform, with exceptional power efficiency, an extended power range and a full operator feature set. These capabilities, along with the VAX transmitter’s flexible configurations and compact design, provide a solid foundation for broadcasters to build their network.

- The Platinum VAX incorporates the Harris® PowerSmart® solid-state architecture, along with 50-Volt LDMOS amplifier devices and the Harris Apex M2X™ exciter technology with RTAC™,  to provide today’s broadcaster with leading power efficiency and unmatched signal performance. The VAX power amplifiers have a record of proven performance and reliability in the DMB 670 and Z transmitter families. This powerful blend of technologies provides best-in-class performance with respect to transmitter size, power efficiency and features. The modular design allows for simpler installation, easier maintenance and reduced total cost of ownership over the life of the transmitters. The VAX is available in very low-power to high-power output, suitable for almost any broadcast application.

Designed with future broadcasting needs in mind, the VAX transmitter is capable of multiple modulation schemes for band III VHF analog or digital operation — including ATSC, ATSC MDTV, DVB-T/H, DVB T2, ISDB-Tb, DAB/DMB and future digital standards. Upgrading from analog to digital or to newer digital standards is readily accomplished to further extend the capability and life of the transmitter.

The VAX transmitter is available as standalone units or in single- or dual-cabinet configurations, and has digital power levels up to 12 kW ATSC, 6.4 kW DVB-T/T2, 10 kW DAB/DMB, and analog levels up to 16 kW.

- PowerSmart technology, for best-in-class power efficiency and lowest operating costs

- Rugged, reliable design and construction

- Digital power levels up to 12 kW ATSC, 10 kW DAB and 6.4 kW COFDM TV

- Analog power levels up to 16 kW

- Field-proven Harris Apex M2X exciter technology, allowing easy migration from analog to digital, or upgrading to new standards

- All-digital linear and nonlinear pre-correction, including exclusive Harris® Real-Time Adaptive Correction (RTAC™)

- Fully broadband PA modules — 168 to 242 MHz

- 1:1 PA module to power supply redundancy

- Hot-pluggable linear RF amplifier modules and DC power supplies

- Transmitter monitoring and in-depth diagnostics via easy-to-use, front-panel controls and indicators

- Incorporates Harris Web-enabled remote control graphical user interface

Specifications and designs are subject to change without notice.

General

 

Frequency Range

168 to 242 MHz, in 1 Hz steps

Transmission Standards

ATSC, DVB-T, DVB-T2, ISDB-Tb, Analog, DAB

Channel Bandwidth

1.5, 6, 7 or 8 MHz (system dependent)

Rated Power Output

See chart below

Output Power Reduction Range

0 to -10 dB

RF Load Impedance

50 ohms

VSWR

Protected against open or short circuit, all phase angles. Capable of operation into infinite VSWR with user-adjustable fold back threshold. Factory pre-set to 4% of nominal nameplate power (VSWR = 1.5:1)

RF Output Connector

N-female, 1-5/8 or 3-1/8 in. EIA (dependent upon power level, DIN 7-16 optional for lower power levels)

Transmitter Dimensions

Refer to Harris outline drawing 8398464263

Transmitter Weight

Refer to Harris outline drawing 8398464263

 

 

AC Mains

 

AC Line Voltage

3 phase: 380 to 415 V, or 208 to 240 V, 50/60Hz, or Single Phase 208 to 240 V, 50/60 Hz - specify when ordering

AC Line Variation

±15%, between 208 to 230 V or 380 to 400 V

Power Factor

>0.97 (0.98 typical)

 

Environmental

Altitude

Up to 13,123 ft (4,000 m) elevation above mean sea level

Ambient Temperature

32° to 113° F (0° to 45° C) at sea level (upper limit derated 3.6° F (2° C) per 984 ft (300 m) elevation AMSL)

Humidity

95%, non-condensing

Cooling Method

Air-cooled with internal fans, air flow front to rear (external air using optional front air plenum)

Acoustic Noise

<65 dBA (measured 1 m in front of cabinet. For VAX-4PA systems and larger, the external input air plenum is required to meet acoustic noise specification)

Frequency Stability

Without precision frequency control/GPS: ±150 Hz/month (6.2 x 10-7 ppm)

 

 

External Inputs

 

GPS Input

SMA female, 50 ohms, (+5 V DC @ 100 mA max output for active antenna)

1 PPS Input

BNC female, user selectable 50 ohms or high impedance termination

10 MHz Reference Frequency Input

BNC female, 50 ohms

 

 

Monitoring Outputs

 

RF Monitor (exciter)

SMA female

1 PPS

SMA female

10 MHz

SMA female

 

 

DVB-T/DVB-T2 / ISDB-Tb Specification

Power Output (average)

50 W to 6.4 kW models available, measured before mask filter (see chart below)

Systems

DVB-T/H, standard EN 300744 
DVB-T2, standard EN 302 755 
ISDB-Tb, Brazil ANATEL standard

ASI/T2MI Inputs

2 inputs BNC female; 75 ohms according to EN 50083-9 (for DVB-H 2 main/2 hierarchical

Crest Factor

13 dB maximum

Shoulder Level

<-37 dB (before mask filter)

END

<0.5 dB

MER

>33 dB (typical 35 dB)

Harmonics (before filter)

<-40 dB

Central Carrier Suppression

>75 dB

DVB-T2 Modes

Supports multiple PLP’s, MISO, extended bandwidth mode, PAPR reduction

 

 

DAB/DMB Specification

Power Output (average)

50 W to 10 kW models available, measured before mask filter (see chart below) 

Systems

DAB/DMB (OFDM) ETSI EN 300 401 & ETSI TR101 496-1

Power Stability

≤ ±0.25 dB

Harmonic/Spurious Output

Complies with EN 302077-2 when used in conjunction with proper band pass filter

Shoulder Before Filter

35 dB minimum, >36 to 40 dB typical

Signal Inputs

ETI Input: BNC-female, user selectable 75 ohms or high impedance termination. 2x ETI (NI, G703) or 2x ETI (NA, G704), seamless input signal switch-over automatic optional EDI input: 10/100 Base T RJ-45, per ETSI TS 102 693 V1.1.2, 1 channel, UDP/DCP or TCP/DCP protocol

Monitoring Outputs

ETI Monitor 
2.048 MHz 
Sync ETI 
Sync OFDM

 

ATSC Specification

Power Output (average)

60 W to 12 kW models available, measured before mask filter (see chart below)

System

ATSC A-53, 8-VSB DTV standard

Data Input

19.39 Mb/s, Configurable as SMPTE-310M or ASI (user selectable)

Impedance

75 ohms, unbalanced

Input Connector

2 inputs, BNC female

Signal to Noise (EVM)

>27 dB (EVM <4%), Typical >32 dB (EVM <2.5 %)

Phase Noise

<104 dBc/Hz @ 20 kHz offset (ATSC A/64)

Harmonic Radiation and Spurious

Meets mask requirements specified in FCC 5th and 6th report and order

Sideband Performance

Compliant with FCC radiation mask, when measured at the output of Harris-supplied output filter

 

Analog

Power Output (vision peak of sync)

100 W to 16 kW models available, measured before IMD filter (see chart below). 10% sound

Analog Television Systems

CCIR G, I, K, K1, M, N

Color Systems

PAL, NTSC, SECAM

Sound Systems

Monaural, BTSC, IRT, NICAM G

 

Analog Video Performance

Video Input

0.7 to 1.4 V, 75 ohms, 32 dB return loss

Variation of Output Power2

±2%

Vision Sideband Response3

PAL system G shown (other systems available) 
-1.25 MHz and below -20 dB or less 
-4.43 MHz -30 dB or less 
-0.75 to -1.25 MHz 0.5 dB or less 
-0.5 to 4.5 MHz 0.5 to -0.5 dB 
5.0 MHz 0.5 to -2.5 dB 
5.75 MHz and above -35 dB or less

 

 

Differential Gain5

3%

Differential Phase5

Low Frequency Linearity6

10%

Incidental Carrier Phase Modulation5

±2°

Signal to Noise Ratio

>60 dB (weighted)

K Factor

2% or less with 2T sin2 pulse

20T Equivalent Gain and Delay

3% total baseline distortion

Spurious and Harmonic Radiation

-60 dB, or better

In-Channel Intermodulation Distortion

-58 dB (-60 dB typical)

 

Analog Sound Performance

Modulation Capability

±120 kHz peak deviation

Monaural Input

Adjustable 0 to 12 dBm, 600 ohms, balanced, >30 dB return loss

Pre-emphasis

Selectable 75 or 50 µS

Frequency Response

±0.5 dB, 40 Hz to 15 kHz

Harmonic Distortion

0.5%, 30 Hz to 15 kHz

FM Noise

60 dB RMS with de-emphasis

AM Noise

50 dB RMS from 30 Hz to 15 kHz

Synchronous AM Noise

40 dB RMS at 400 Hz with ±25 kHz deviation

IRT Sound

Available 

NICAM Sound

Available

 

Remote Control

Parallel Remote

25 conductor D-sub for single drive basic rack, 12 conductor terminal block (mini Wago) on deluxe rack

Ethernet/SNMP

RJ-45, twisted pair

 

Compliance

RoHS 2002/95/EC 
R&TTE 1999/5/EC 
Safety: EN 60215 
EMC: EN 301-489-1 
FCC Part 73 
Manufacturing: ISO 9001: 2008

 

1 Variation of peak output power with a change in average picture level from black to white (0% to 100%).

2 Peak-to-peak variation of peak sync voltage during one field using field test signal per EIA-508.

3 Response specified for transmitter operating into a resistive load of 1.05:1 VSWR.

4 Measured using 20% peak-to-peak amplitude swept video modulation with pedestal set at 10%, 50% and 90% APL. All percentages relative to a blanking to white transition.

5 Measured using a 5-step staircase signal. Test signal #3, CCIR REC. #421-3

 

VAX Power Levels

Model Number

Dimensions (HxWxD) 

Weight (uncrated)

Number of Cabinets

Number of PA Blocks

Number of Final PA Modules

RF Output Power (W)

VAX‐100AN 
VAX‐50DA 
VAX‐60AT 
VAX‐50DV/IS/T2

22.2x48.3x50cm 
8.72x19x19.7in 
(Rack optional1)

20 kg 
44.1 lb

0 or 1

0

1

100/10 
50 
60 
50

VAX‐250AN 
VAX‐150DA 
VAX‐180AT 
VAX‐100DV/IS/T2

22.2x48.3x50cm 
8.72x19x19.7in 
(Rack optional1)

20 kg 
44.1 lb

0 or 1

0

1

250/25 
150 
180 
100

VAX‐500AN 
VAX‐300DA 
VAX‐375AT 
VAX‐200DV/IS/T2

22.2x48.3x50cm 
8.72x19x19.7in 
(Rack optional1)

25 kg 
55.0 lb

0 or 1

0

1

500/50 
300 
375 
200

VAX‐1000AN 
VAX‐600DA 
VAX‐750AT 
VAX‐400DV/IS/T2

22.2x48.3x50cm 
8.72x19x19.7in 
(Rack optional1)

25 kg 
55.0 lb

0 or 1

0

2

1,000/100 
600 
750 
400

VAX‐2000AN 
VAX‐1250DA 
VAX‐1500AT 
VAX‐800DV/IS/T2

93.2x48.3x67.4cm 
36.7x19x26.5in 
(Rack optional1

286.5 kg 
632 lb

0 or 1

1

4

2,000/200 
1,200 
1,500 
800

VAX‐3000AN 
VAX‐1875DA 
VAX‐2250AT 
VAX‐1200DV/IS/T2

93.2x48.3x67.4cm 
36.7x19x26.5in 
(Rack optional1

301.5 kg 
665 lb

0 or 1

1

6

3,000/300 
1,875 
2,250 
1,200

VAX‐4000AN 
VAX‐2500DA 
VAX‐3000AT 
VAX‐1600DV/IS/T2

93.2x48.3x67.4cm 
36.7x19x26.5in 
(Rack optional1

316.5 kg 
698 lb

0 or 1

1

8

4,000/400 
2,500 
3,000 
1,600

VAX‐6000AN 
VAX‐3750DA 
VAX‐4500AT 
VAX‐2400DV/IS/T2

In 44RU Rack: 219.7x59.5x94.8cm 86.5x23.4x37.3in 
(2 racks for dual drive) 

541 kg 
1,193 lb 

1 or 2

2

12

6,000/600 
3,750 
4,500 
2,400

VAX‐8000AN 
VAX‐5000DA 
VAX‐6000AT 
VAX‐3200DV/IS/T2

In 44RU Rack: 219.7x59.5x94.8cm 86.5x23.4x37.3in 
(2 racks for dual drive)

580 kg 
1,279 lb

1 or 2

2

16

8,000/800 
5,000 
6,000 
3,200

VAX‐12000AN 
VAX‐7500DA 
VAX‐9000AT 
VAX‐4800DV/IS/T2

In 2x44RU Racks, total: 
219.7x119x94.8cm 
86.5x46.9x37.3in

658 kg 
1,551 lb

2

3

24

12,000/1,200
7,500 
9,000 
4,800

VAX‐16000AN 
VAX‐10000DA 
VAX‐12000AT
VAX‐6400DV/IS/T2

In 2x44RU Racks, total: 
219.7x119x94.8cm 
86.5x46.9x37.3in

753 kg 
1,660 lb

2

4

32

16,000/1,600
10,000 
12,000 
6,400

 

1 37RU basic rack, 37RU deluxe rack, or 44RU deluxe


 

SẢN PHẨM CÙNG LOẠI

  • Máy phát hình Harris VHF Platinum™ VLX

  • CÔNG TY CỔ PHẦN DỊCH VỤ VIỄN THÔNG THẾ HỆ MỚI

    Trụ sở: Số 43, ngách 38, ngõ 89, Đường Lạc Long Quân, Quận Cầu Giấy, TP. Hà Nội.

    Tel: 043 791 6704 -  Fax: 043 791 6635

    Hotline: 098 890 4299/ 090 482 8313

    Dây cáp truyền thanh - Máy tăng âm truyền thanh - Loa phóng thanh - Cụm thu FM không dây - Loa nén - Đầu thu số mặt đất dvb-t2

    cửa lưới chống muỗi giá rẻ nhất cửa lưới chống muỗi

    Một sản phẩm của WEB20