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The newly 1KW Radio FM Transmitter is high linear and high gain LDMOS tube amplifier module.
It adopts advanced third generation of FM modulation technologies: digital signal processing (FPGA) and digital frequency synthesis technology (DAC). DFT-7313 takes use of the advantage of digital audio processing technology to provide users a CD quality hearing experience.
*Fully complying with national standard (GB/T4311-2000) and industrial standard (GY/T169-2001)
*Adopt high gain and high linear LDMOS tube amplifier module design
*Adopt international advanced digital signal processingtechnology (FPGA) for audio encoding
*Support AGC function with sustained power output (±0.1dB) to ensure the transmitter a good stability and reliability
*Adjustable output power as needed (50W～1000W)
*Low power consumption and super linear design to improve the transmission power, and reduce the nonlinear distortion
*LED on the front panel supporting alarm and signal monitor
*High-efficiency power supply with wide range of voltage (AC100～264V), suitable for different working condition
*Equiped with multiple lightning protection measures
*Support fault self-diagnosis and self-protection
*Air-cooled system with low consumption and low noise
*Multi lightning protection measures, good protection for whole equipment
*Full digital front panel control, easy operation
*24-hour working unmanned, user friendly design
|
S/No. |
Item |
Unit |
Technical Index |
Industrial Standard |
Remark |
|
|
1 |
Output Power |
W |
1000 |
-- |
|
|
|
2 |
Frequency |
MHz |
87～108 |
-- |
|
|
|
3 |
Carrier frequency allowable deviation |
Hz |
≤500 |
±1000 |
|
|
|
4 |
Sparious Radiation |
dB |
＜-60dB and＜1mW |
＜-60dB and＜1mW |
|
|
|
5 |
parasitic amplitude modulation noise |
dB |
£-60 |
£-50 |
|
|
|
6 |
Pilot frequency deviation |
Hz |
±1 |
±1 |
|
|
|
7 |
Deviation (100% modulation) |
kHz |
±75 |
—— |
|
|
|
8 |
pre-emphasis |
µs |
50 |
—— |
|
|
|
9 |
Distortion (100% modulation) |
L |
％ |
＜0.2 |
＜0.5 |
|
|
R |
||||||
|
10 |
Frequency response (without emphasis, de-emphasis) |
L |
dB |
±0.2 |
±0.5 |
|
|
R |
||||||
|
11 |
Frequency response (with emphasis, de-emphasis) |
L |
dB |
±0.2 |
±1 |
|
|
R |
||||||
|
12 |
SNR (100% modulation) |
L |
dB |
³70 |
³60 |
|
|
R |
||||||
|
13 |
L/R Separation |
L>R |
dB |
＞60 |
＞40 |
|
|
R > L |
||||||
|
14 |
L/R level diffrence |
dB |
＜0.2 |
＜0.4 |
|
|
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