Audited Supplier
ZRFM-FSJ
Transmitter
Signal Transmitting Device, Signal Transmission Equipment
ISO
New
1kw
87-108MHz
60.0mz
-81.5dB
-55.6dB
0.5℅
NJZR
Export Wooden Box Packaging
480mm× 650mm× 132mm
Nanjing, Jiangsu
Product Description
Technical description
Main features:★ All solid-state design, digital analog compatibility;
★ Professional broadcasting level transmitter;
★ All power amplifiers are made of high-power LDMOS tubes produced by PHILIPS;
★ Wideband amplification of power amplifier components;
★ The modulation method is digital DDS modulation
★ Input interface: 2 analog audio interfaces, 1 digital audio interface, 1 SCA/RDS interface, 1 1PPS interface, 1 10MHz clock interface, and 1 MPX mixed input interface;
★ Output interface: 1 LOCK IN interface, 1 RS232 interface, 1 RS485 interface, 1 RJ45 interface, 1 RF monitoring interface, and 1 RF power output interface;
★ Display the intensity of the left and right channel signals by displaying the fluctuation of the two sound columns on the LCD;
The parameters displayed through the LCD include: emission power, reflection power, current of the amplifier tube, voltage of the amplifier tube, input level, temperature, and loop voltage;
★ Indicate the above content through indicator lights: power indicator light, overvoltage protection indicator light, standing wave ratio alarm indicator light, remote control status indicator light, temperature alarm indicator light, overcurrent, circuit, overvoltage exceeding limit indicator, system communication fault indicator, RF prohibition indicator;
★ Able to set 3 time periods per day to automatically control the power level;
★ Adopting high-efficiency switching power supply;
★ Large screen Chinese LCD display system, capable of computer monitoring;
The entire machine is equipped with various protective measures such as overcurrent, overvoltage, overexcitation, over standing wave, and over temperature.
| order number | Indicator project | unit | standard Index requirements | |
| 1 | output power | W | 1000 | |
| 2 | Nominal firing frequency | MHz | 87-108 | |
| 3 | Allowable deviation of the carrier frequency | Hz | 60.0 | |
| 4 | Residual wave radiation | dB | -81.5 | |
| 5 | Parasitic amplitude modulation noise | dB | -55.6 | |
| 6 | Power permitting deviation | ℅ | 0.5 | |
| 7 | Distortion (100 ℅ modulation) | L | ℅ | 0.03 |
| R | ||||
| 8 | frequency response (Increase / go increase) | L | dB | 0.1~-0.1 |
| R | ||||
| 9 | frequency response (No aggravation / removal) | L | dB | 0.01~-0.02 |
| R | ||||
| 10 | SNR (100 ℅ modulation) | L | dB | 79.0 |
| R | ||||
| 11 | Left and right sound channel separation degree | L--R | dB | 61.0 |
| R--L | ||||
| 12 | Left and right sound channel level difference | dB | 0.01 | |
| 13 | pilot carrier frequency | kHz | 19±1Hz | |
| 14 | Guide frequent rate deviation | Hz | 0.0 | |
| 15 | The 38-kHz residual component in the S signal | dB | -54.3 | |
| 16 | 100 ℅ modulation frequency bias | kHz | ±75 | |
| 17 | pre-emphasis | us | 50 | |
| 18 | Occupied bandwidth | kHz | ≤256 | |
| 19 | working temperature | ºC | 0~+45 | |
| 20 | relative humidity | % | <95 | |
| 21 | power dissipation | W | <2000/<4000 | |
| 22 | RF output interface | L27K/L29K | ||
| 23 | Analog audio input interface | XLR Mother kannon head | ||
| 24 | Analog audio input impedance | Ω | The 10k unbalanced or 600 balance panel is optional | |
| 25 | Digital audio input interface | XLR Mother kannon head | ||
| 26 | Digital audio input impedance | Ω | 110. Balance | |
| 27 | The SCA / RDS interface | BNC, out-off-balance | ||
| 28 | SCA / RDS input impedance | kΩ | 10 | |
| 29 | audio input level | dBm | -15~ + 15 Step selection by panel 0.1 dBm | |
| 30 | Maximum modulation capacity | kHz | ±120 | |
| 31 | Power Supply Voltage | V | AC220 | |
| 32 | Overall dimensions (width * depth * height) | mm | 480×650×132 | |
| 33 | weight | kg | 23 | |
| 34 | above sea level | m | 5000 | |
| 35 | operate mode | continuous work | ||
| 36 | reliability | h | MBTF≥5000 | |
