FMT5.0-150H FM radio transmitter technical parameters

Introduction:

  FMT5.0-150H FM radio transmitter is highly reliable, lighter in weight and easier to operate than previous version of transmitter. This transmitter adopts a simple-style design concept. It integrates the 150W FM stereo transmitter exciter, power amplifier, output filter and switching power supply in a 1U high 19-inch standard case, reducing the connecting cables between the components.

Technical Features:

• User-friendly digital LCD panel, using one rotary knob to control.

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

• 1U 19-inch thickened all-aluminium case, strong and excellent heat dissipation.

• Precise PLL frequency generation system, to ensure that the frequency not drift away for more than10 years, with built-in high-quality stereo encoder.

• Outstanding power AGC balance control system, adjustable power output from 0 to 150 watts, and automatic gain power control to maintain output power within set range without drifting.

• Signal input supports XLR and RCA audio inputs,  and also SCA and RDS signals using the BNC connector AUX.

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

Technical Parameters:

Frequency: 87.5-108MHz

Frequency step value: 10KHz

Modulation method: FM, peak deviation ± 75KHz

Frequency stability: <± 100Hz

Frequency stabilization method: PLL frequency synthesizer

RF output power: 0 ~ 150 W, step 0.1W, error ± 0.5dB

Harmonic suppression: ≤-72dB

Inband residual wave: ≤-72dB

Asynchronous AM SNR: ≥-80dB (no modulation) ≥-65dB (400Hz, 100% modulation)

Synchronous AM SNR: ≥-70dB (no modulation) ≥-60dB (400Hz, 100% modulation)

RF output impedance: 50Ω

RF Output Connector: N Female (L16)

Audio Input Connectors: XLR Female and RCA Female

AUX input connector: BNC female

Pre-emphasis: 0us, 50us, 75us (user setting)

Mono signal to noise ratio: ≥ 80 dB (20 to 20KHz)

Stereo signal-to-noise ratio: ≥ 80 dB (30 to 15KHz)

Stereo resolution: ≥ -55dB

Audio frequency response: 30 ~ 15000Hz ± 0.4dB

Audio distortion: <0.1%

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

Audio input: -15dB ~ 0dB

Power supply voltage range: 110V ~ 260V (global voltage)

Power consumption: <320VA

Operating temperature range: -10 to 45 ℃

Way of working: continuous work

Cooling method: forced air cooling

Cooling method: <95%

Altitude: <4500M

Dimensions: 484 x 260 x 44 mm without handles and protrusions, 19 "1U standard rack.

Weight: 4Kg