The transmitter implements digital FM modulator module as its core, combining with RF power amplifier.
In the transmitter, DSP&DDS are used to execute all-digital processing,such as digital filtering, pre-emphasis, the generation of pilot frequency, stereo coding and FM modulating.
An AGC circuit is used to keep the set power stable.
High performance and very good reliability has been proved by the large usage of FU618F-500C transmitters.
Also it is low cost and small size.
Terms |
Specs |
RF frequency range |
87MHz ~ 108MHz stepping 10kHz (other frequencies can be customized) |
output power |
0 ~ 500W continuously adjustable |
Output power tolerance |
<±10% |
Output power stability |
<±3% |
Output impedance |
50Ω |
RF output connector |
L29 |
band residual wave |
<-70dB |
high-order harmonic |
<-60dB |
Parasitic AM |
<-50dB |
carrier frequency tolerance |
±200Hz |
analog audio input |
-12dBm ~ +8 dBm |
Audio Level Gain |
-15dB ~ +15 dB 0.1dB steps |
analog audio input impedance |
600Ω balanced XLR |
AES / EBU balanced XLR input impedance |
110Ω |
AES / EBU Input Level |
0.2 ~ 10Vpp |
AES / EBU sample rate |
30kHz ~ 96kHz |
SCA unbalanced input (option) |
BNC-type connectors |
audio pre-emphasis |
0μs, 50μs, 75μs |
Frequency response |
±0.1dB 30Hz ~ 15000Hz |
Left and right channel level difference |
<0.1dB (100% modulation) |
stereo separation |
≥ 50dB 30Hz ~ 15000Hz |
stereo signal to noise ratio |
≥ 70dB 1KHz, 100% modulation |
THD |
<0.1% 30Hz ~ 15000Hz |
cooling methods |
Forced convection |
temperature range |
5°c~ +40°c |
Relative humidity |
<95% |
Altitude |
<4500m |
Power |
800VA |
Dimensions |
484mm × 545mm × 88mm |
Weight |
20KG
|
- 1 * FM radio transmitter 500 watts FU618F
- 1 * 1-bay stainless steel dipole FM antenna FM-DV1