FMT5.0-1000H 1000W profession FM broadcast transmitter with exciter 87.5-108MHz 2U

Overview

This transmitter adopts the concept of simple design and integrates the exciter and power amplifier, output filter, switching power supply, etc into a 2U high 19-inch standard case. This advanced design reduces the number of connection cables and improves the overall efficiency of the transmitter, making it more reliable and easier to operate. 

Functional features

Humanized digital LCD touch panel, simple operation interface with direct touch control.

The integrated LCD displays all system parameters: transmitter frequency, stereo and mono, volume, amplifier tube temperature, audio signal UV meter, forward power, reflected power, modulation mode, and pre-emphasis etc.

2U 19-inch thick aluminum alloy case, which is not only sturdy but also has good heat dissipation.

Precise PLL frequency generation system to ensure the frequency does not drift within at least 10 years.

Built-in high-quality professional stereo encoder.

Excellent power AGC balance control system, the power output can be adjusted from 0 to full power, and has automatic gain power control to maintain the output power within a set range without drifting.

Support external input modulation RDS or SCA signal.

Supports AES-EBU digital signal input, 24Bit 192KHz sampling rate input range, true lossless audio.

The RF amplifier uses LDMOS transistors to withstand even severe load mismatch exceeding the 65: 1 VSWR at a 5dB compression point.

Automatically record 9 latest device alarms for later troubleshooting.

Specification

Frequency: 87.5-108MHz,

Frequency step value: 10KHz

RF output power: 0 ～1000W  ± 0.5dB

Modulation mode: FM, peak deviation ± 75KHz

Frequency stability: <± 100Hz

Frequency stabilization method: PLL phase-locked loop frequency synthesis

In-band residual wave: <-70dB

Higher harmonics: <-65dB

Parasitic AM: <-79dB

RF output impedance: 50Ω

RF output connector: DIN (L29) female 

RF efficiency:> 78%

Analog audio input: -12dBm ~ + 8dBm

Audio level gain: -15dB ~ 15dB step 0.5dB

Analog audio input impedance: 600Ω balanced XLR

Digital audio input impedance: 75Ω Coaxial

AES / EBU input impedance: 110Ω balanced XLR

AES / EBU input level: 0.2 ~ 10Vpp

AES / EBU sampling rate: 30KHz ~ 192KHz 24BIT

RDS / SCA input: unbalanced BNC

RDS / SCA input level gain: -15dB ~ 15dB step 0.5dB

Pre-emphasis: 0μs, 50μs, 75μs (users can set)

Frequency response: ± 0.1dB 30 ～ 15000Hz

Stereo resolution:> 60dB

S / N ratio stereo:> 70dB 30 ～ 15000Hz

S / N ratio mono:> 75dB 30 ～ 15000Hz

Audio distortion: <0.05%

Power supply voltage range: single phase   110 ~ 260Vac 

Power consumption:   <1600VA 

Operating temperature range: -20 to 45 ° C

Working method: continuous work

Cooling method: forced air cooling

Cooling method: <95%

Altitude: <4500M

Dimensions: 483 x 320 x 88 mm (excluding handles and protrusions), standard rack 19 inches 2U.

Weight:  11Kg

Warranty：amplifier tube for 1 year, except man-made and lightning-strike damages. Maintenance only charge of the cost of components.