VHF Band III Digital TV Transmitters

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  • Regular price $6,650.00


AAT state of the art Digital TV Transmitters combine proven reliability with modern features.

 

25 W – 5 KW TV Transmitters

  • Full Color Touch Screen Display
  • Internal RF Isolator (UHF, VHFIII)
  • Two Stage Amplification
  • Class A/AB Operation
  • Efficient Transistors and Power Supplies
  • Extensive Monitoring via Ethernet, SNMP, and Remote Samples
  • Two Year Warranty

RF CHARACTERISTICS

Frequency Range

VHF 50 – 230 MHz, UHF 470 - 860 MHz

Input Power

0 dBm into power amplifier from modulator

Nominal Output Power (8VSB)

VHF: 25W, 40W, 100W, 250W, 500W, 1kW, 2kW, 3KW, 4KW, 5KW

UHF:  40W, 100W, 250W, 500W, 1kW, 2kW, 3KW, 4KW, 5KW

Power Level

Adjustable 10 – 100%

Input Impedance

50 Ω into amplifier, BNC female

Output Impedance

50 Ω, N or 7-16 DIN female (dependent on power level)

Modulation

8VSB, QAM, DVBT/H, etc (output power will change between standards)

Signal and Noise

MER >36 dB typical

BER >38 dB typical

SN >40 dB typical

Phase Jitter

>104 dB

Shoulders

>-50 dB typical, ATSC mode compliant to ATSC A53/B

Typical Performance Specifications

ELECTRICAL

Flexible AC Input

VHF PA:

25W/100W/250W/500W -

90-264Vac

 

 

1kW/2kW/3kW/4kW/5kW -

180-264Vac

 

UHF PA:

25W/100W/250W/500W -

90-264Vac

 

 

1kW/2kW/3kW/4kW/5kW -

180-264Vac

Other AC supply voltages and phases available upon request

INTERFACE

DB25 Remote Port

Control:

RF carrier on/off, RF power up/down, reset

 

Monitor:

Forward/reflected RF level, control PCB Vcc

 

Flags:

Overdrive, VSWR (adjustable trip point), high temperature

 

 

 

Ethernet

Control:

RF carrier on/off, RF power up/down, AGC/manual mode, change VSWR trip point, reset

 

Monitor:

Forward/reflected RF level, pallet voltage, RF input level, temperature, VSWR trip point, model/serial number

 

Flags:

Carrier on/off, overdrive, pallet voltage, VSWR, RF input, temperature, AGC / manual

 

 

 

SNMP

Control:

RF carrier on/off, RF power up/down, AGC/manual mode, change VSWR trip point, reset

 

Monitor:

Forward/reflected RF level, DC pallet voltage, RF input level, temperature, pallet current, attenuation, run time, RF fault, model/serial number

 

Flags:

Overdrive, VSWR, temperature, SNMP error

         
Touch Screen Interface


Modulator Interface